CN113445996A - Electromagnetic distance measuring device while drilling, drill bit and method for determining spatial position of drilling well - Google Patents
Electromagnetic distance measuring device while drilling, drill bit and method for determining spatial position of drilling well Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 360
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- 238000005259 measurement Methods 0.000 claims abstract description 91
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- 210000002445 nipple Anatomy 0.000 claims description 11
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
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Abstract
The invention discloses a device for measuring distance while drilling by using electromagnetic waves, a drill bit and a method for determining the spatial position of a drilled well. Wherein, the method comprises the following steps: receiving magnetic field detection data detected by a magnetic field sensor and measurement while drilling data detected by a measurement while drilling probe; acquiring characteristic information of a drilled well, wherein the drilled well is an adjacent well of a well being drilled; determining the distance and direction of the weak magnetic detection short section relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information; the relative spatial position of the drilling well relative to the drilled well is determined from the distance and direction. The invention solves the technical problem that the tool applied to the rescue sub-guided drilling technology in the related technology can not realize the wireless measurement of the distance between adjacent wells while drilling.
Description
Technical Field
The invention relates to the technical field of underground resource drilling and production engineering, in particular to a drilling-while-drilling electromagnetic ranging device, a drill bit and a method for determining a spatial position of a drilling well.
Background
The magnetic ranging and guiding drilling technology can avoid the generation of measurement accumulated errors of the relative positions of adjacent wells, and is a novel guiding drilling measurement and control technology for realizing the accurate control of the relative positions of the adjacent wells. At present, the magnetic steering drilling technology plays an increasingly important role in directional drilling engineering and trenchless crossing engineering for exploiting resources such as residual oil gas, salt mine, mirabilite and geothermal heat. However, the rescue well magnetic steering drilling technology cannot fully meet the technical requirements of a drilling site. In relief well drilling engineering, Wellspot series tools (including Wellspot, Wellspot RGR, and WSAB) are commonly used to guide relief wells into communication with the failed well at the designed downhole communication point. Moreover, the Wellspot series tools cannot completely meet the technical requirements of drilling sites, and the main reason is that the underground electrode is powered by a ground power supply through a logging cable, and the underground magnetic signal detection device transmits a detected signal to a ground device through the logging cable, namely the Wellspot series tools cannot realize wireless measurement of the distance between adjacent wells while drilling.
Aiming at the problem that the tool applied to the rescue sub-guided drilling technology in the related technology cannot realize the wireless measurement of the distance between adjacent wells while drilling, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a device for measuring distance while drilling, a drill bit and a method for determining the spatial position of a drilling well, which are used for solving the technical problem that a tool applied to rescue sub-guided drilling technology in the related technology cannot realize wireless measurement of the distance between adjacent wells while drilling.
According to an aspect of an embodiment of the present invention, there is provided an electromagnetic distance measuring while drilling device, including: the drilling electrode is used for injecting current into the stratum so as to enable a drilled preset area to generate an alternating magnetic field, wherein the drilled well is an adjacent well in the drilling process; the magnetic field sensor is used for detecting the alternating magnetic field to obtain magnetic field detection data; a processor configured to receive the magnetic field detection data and measurement while drilling data, and determine a phase space position of a drill bit and the drilled well based on the magnetic field detection data and the measurement while drilling data.
Optionally, the electromagnetic distance measuring while drilling device further comprises: the electromagnetic communication transmitter is used for transmitting the magnetic field detection data to the measurement-while-drilling probe; the measurement-while-drilling probe is used for receiving the magnetic field detection data transmitted by the electromagnetic communication transmitter and acquiring the measurement-while-drilling data; and the mud pulse generator is used for providing a working power supply for the measurement while drilling probe.
Optionally, the electromagnetic distance measuring while drilling device further comprises: weak magnetic detection short section; wherein, weak magnetism detects nipple joint includes: the magnetic field sensor; the electromagnetic communication transmitter is free of a magnetic body, one end of the electromagnetic communication transmitter is connected with the underground motor, and the other end of the electromagnetic communication transmitter is connected with the drill bit; a battery pack for providing operating power to the magnetic field sensor, the electromagnetic communication transmitter, and the processor.
Optionally, the electromagnetic distance measuring while drilling device further comprises: a generator for generating an electric current.
Optionally, the while drilling electrode comprises: an injection electrode for emitting the current generated by the generator into the formation, wherein the current is collected and propagated on the drilled tubular string; a return electrode for receiving current flowing back from the formation to generate the alternating magnetic field.
Optionally, the generator is further configured to identify a rotation state of the drill string, and to supply power to the injection electrode and the return electrode when it is determined that the drill string stops rotating based on the identification result.
According to another aspect of the embodiments of the present invention, there is provided a method for determining a spatial position of a drill bit and a drilled well, which is applied to any one of the foregoing electromagnetic distance measuring while drilling devices, including: receiving magnetic field detection data detected by a magnetic field sensor and measurement while drilling data detected by a measurement while drilling probe; acquiring characteristic information of a drilled well, wherein the drilled well is an adjacent well of a drilling well; determining the distance and direction of a weak magnetic detection short joint relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information; determining a relative spatial position of the well being drilled relative to the drilled well based on the distance and the direction.
Optionally, the receiving the magnetic field detection data detected by the magnetic field sensor and the measurement-while-drilling data detected by the measurement-while-drilling probe includes: starting a power injection function of an electrode while drilling and a data receiving function of the measurement while drilling probe based on electromagnetic communication, so that the electrode while drilling is utilized to inject current into a stratum to enable the drilled preset area to generate an alternating magnetic field, and the measurement while drilling probe is utilized to obtain measurement while drilling data; detecting the alternating magnetic field by using the magnetic field sensor to obtain the magnetic field detection data; and receiving the magnetic field detection data and the measurement while drilling data transmitted by an electromagnetic communication transmitter, wherein the electromagnetic communication transmitter is arranged in the weak magnetic detection short section.
Optionally, before turning on the power injection function of the measurement while drilling electrode and the data receiving function of the measurement while drilling probe based on electromagnetic communication, the electromagnetic distance measuring while drilling device further includes: moving a sub-assembly of the electromagnetic while drilling ranging device with a drill string into the drilling well, wherein the sub-assembly comprises: the weak magnetic detection short section, the measurement while drilling probe, the mud pulse generator, the insulation short section and the electrode while drilling.
Optionally, moving part of the components of the electromagnetic distance measuring while drilling device with the drill string into the drilling well comprises: acquiring the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; determining distance scanning information between the drilling well and the adjacent well drilled based on the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; moving a portion of components in the electromagnetic ranging while drilling device with a drill string into the drilling well based on the adjacent well distance scan information.
Optionally, the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well each comprise: well track information, well structure information; wherein the wellbore trajectory information comprises: well head coordinate, drill plate plane height, ground elevation, well drilling characteristic information of well drilling still includes: a drilled section, the drilled well characteristic information further comprising: well depth, angle of inclination and azimuth of the actual drilling trajectory.
Optionally, the adjacent well distance scanning information comprises: well depth, scanning radius and scanning angle of the well section needing anti-collision of the well being drilled and the drilled well.
Optionally, determining the distance and direction of the weak magnetic test sub relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information comprises: determining the radial distance between the drilled pipe column and the weak magnetic detection nipple; and determining an included angle between the high side direction of the drilled well and a preset projection direction, wherein the preset projection direction is the projection direction of the radial distance on the normal plane of the drilling direction of the drill bit.
According to another aspect of the embodiments of the present invention, there is provided a device for determining a spatial position of a drill bit and a borehole, the method for determining a spatial position of a drill bit and a borehole using any one of the above methods, including: the receiving unit is used for receiving magnetic field detection data detected by the magnetic field sensor and measurement-while-drilling data detected by the measurement-while-drilling probe; the device comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring drilling characteristic information of a drilled well, and the drilled well is an adjacent well of a drilling well; a first determination unit, configured to determine a distance and a direction of a weak magnetic detection sub with respect to the drilled well based on the magnetic field detection data, the measurement while drilling data, and the drilled well characteristic information; a second determination unit for determining the relative spatial position of the drilling well with respect to the drilled well based on the distance and the direction.
Optionally, the receiving unit includes: the starting module is used for starting a power injection function of the while-drilling electrode and a data receiving function of the measurement while-drilling probe based on electromagnetic communication so as to inject current into a stratum by using the while-drilling electrode to enable the drilled preset area to generate an alternating magnetic field and simultaneously acquire measurement while-drilling data by using the measurement while-drilling probe; the detection module is used for detecting the alternating magnetic field by using the magnetic field sensor to obtain the magnetic field detection data; the receiving module is used for receiving the magnetic field detection data and the measurement while drilling data which are transmitted by the electromagnetic communication transmitter, wherein the electromagnetic communication transmitter is arranged in the weak magnetic detection short section.
Optionally, the device for determining the spatial position of the drill bit and the drilled well further comprises: the moving module is used for moving part of components in the electromagnetic distance measuring while drilling device with a drill string into the drilling well before starting the power injection function of the while drilling electrode and the data receiving function of the while drilling measurement probe based on electromagnetic communication, wherein the part of components comprise: the weak magnetic detection short section, the measurement while drilling probe, the mud pulse generator, the insulation short section and the electrode while drilling.
Optionally, the mobile module includes: the acquisition sub-module is used for acquiring the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; a determination sub-module, configured to determine distance scanning information between the drilling well and the adjacent well drilled based on the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; and the moving sub-module is used for moving part of components in the electromagnetic distance measuring while drilling device with a drill string into the drilling well based on the adjacent well distance scanning information.
Optionally, the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well each comprise: well track information, well structure information; wherein the wellbore trajectory information comprises: well head coordinate, drill plate plane height, ground elevation, well drilling characteristic information of well drilling still includes: a drilled section, the drilled well characteristic information further comprising: well depth, angle of inclination and azimuth of the actual drilling trajectory.
Optionally, the adjacent well distance scanning information comprises: well depth, scanning radius and scanning angle of the well section needing anti-collision of the well being drilled and the drilled well.
Optionally, the second determining unit includes: the first determination module is used for determining the radial distance between the drilled pipe column and the weak magnetic detection short section; and the second determination module is used for determining an included angle between the high side direction of the drilled well and a preset projection direction, wherein the preset projection direction is the projection direction of the radial distance on the normal plane of the drilling direction of the drill bit.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored computer program, wherein when the computer program is executed by a processor, the computer-readable storage medium is controlled to implement the method for determining a spatial position of a drill bit and a borehole.
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing a computer program, wherein the computer program is executed to execute the method for determining the spatial position of a drill bit and a drilled well according to any one of the above.
In the embodiment of the invention, magnetic field detection data detected by a receiving magnetic field sensor and measurement-while-drilling data detected by a measurement-while-drilling probe are adopted; acquiring characteristic information of a drilled well, wherein the drilled well is an adjacent well of a well being drilled; determining the distance and direction of the weak magnetic detection short section relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information; the relative spatial position of the drilling well relative to the drilled well is determined from the distance and direction. According to the method for determining the spatial position of the drill bit and the well, the alternating magnetic field generated by the while-drilling electrode is detected by the magnetic field sensor to obtain the magnetic field detection data, and the relative spatial position of the well being drilled and the well being drilled is determined by combining the while-drilling measurement data.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of an electromagnetic distance measuring while drilling apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a near-bit weak magnetic detection short joint according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a transmitting and receiving electromagnetic distance measuring while drilling device according to an embodiment of the invention;
FIG. 4 is a flow chart of a method of spatial location determination of a drill bit and a borehole according to an embodiment of the present invention;
FIG. 5 is a flow chart of an alternative method of spatial location determination of a drill bit and a borehole in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a device for determining the spatial position of a drill bit and a borehole according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of description, some terms or expressions appearing in the embodiments of the present invention are explained below.
Measurement While Drilling (measurement While Drilling, abbreviated as MWD): the method is a technology for carrying out underground measurement and realizing wireless transmission in the drilling process, and transmits measurement information data to the ground by using mud pulses in a drill string.
A rescue well: the rescue well is communicated with the rescued well and drilled by controlling blowout under the condition that the rescued well has serious blowout or the blowout is out of control.
Short section: is a fitting commonly used in industrial pipe connections.
Example 1
According to an aspect of an embodiment of the present invention, there is provided an electromagnetic distance measuring while drilling device, fig. 1 is a schematic diagram of an electromagnetic distance measuring while drilling device according to an embodiment of the present invention, as shown in fig. 1, the electromagnetic distance measuring while drilling device may include: the drilling electrode 11 is used for injecting current into the stratum so as to enable a drilled preset area to generate an alternating magnetic field, wherein the drilled well is an adjacent well which is drilled; the magnetic field sensor 13 is used for detecting the alternating magnetic field to obtain magnetic field detection data; the processor 15 is used for receiving the magnetic field detection data and the measurement while drilling data, determining the phase space position of the drill bit and the drilled well based on the magnetic field detection data and the measurement while drilling data, detecting the alternating magnetic field generated by the electrode while drilling by using the magnetic field sensor to obtain the magnetic field detection data, and determining the relative space position of the drilled well and the drilled well by combining the measurement while drilling data.
Therefore, the electromagnetic distance measuring while drilling device provided by the embodiment of the invention solves the technical problem that a tool applied to rescue sub-guided drilling technology in the related technology cannot realize wireless measurement of the distance between adjacent wells while drilling.
As an optional embodiment, the electromagnetic distance measuring while drilling device may further include: the electromagnetic communication transmitter is used for transmitting the magnetic field detection data to the measurement-while-drilling probe; the measurement-while-drilling probe is used for receiving the magnetic field detection data transmitted by the electromagnetic communication transmitter and acquiring measurement-while-drilling data; and the mud pulse generator is used for providing a working power supply for the measurement while drilling probe.
For example, the electromagnetic communication transmitter may be disposed in the distance measurement while drilling device, so as to transmit the magnetic field detection data to the measurement while drilling probe by using the electromagnetic communication transmitter, so that the measurement while drilling probe may be used to not only receive the magnetic field detection data, but also obtain the measurement while drilling data. In addition, the mud generator can also be used for providing a working power supply for the measurement-while-drilling probe so as to ensure the normal work of the measurement-while-drilling probe.
As an optional embodiment, the electromagnetic distance measuring while drilling device may further include: weak magnetic detection short section; wherein, weak magnetism detects nipple joint includes: a magnetic field sensor; the electromagnetic communication transmitter is free of a magnetic body, one end of the electromagnetic communication transmitter is connected with the underground motor, and the other end of the electromagnetic communication transmitter is connected with the drill bit; and the battery pack is used for providing working power supply for the magnetic field sensor, the electromagnetic communication transmitter and the processor.
Fig. 2 is a schematic diagram of an internal structure of a near-bit weak magnetic detection sub (i.e., a weak magnetic detection sub) according to an embodiment of the present invention, and as shown in fig. 2, the near-bit weak magnetic detection sub may include: one non-magnetic body 21, one high-precision three-axis alternating magnetic field sensor (i.e., magnetic field sensor in the context) 22, one electromagnetic communication transmitting module (i.e., electromagnetic communication transmitter in the context) 23, two battery packs 24, four non-magnetic covers 25.
In addition, this weak magnetism detects nipple joint can also include: a data acquisition processing module (not shown in fig. 2). Four grooves are processed on the nonmagnetic body 21, the high-precision triaxial alternating magnetic field sensor 22 and the data acquisition processing module are installed in one groove, the electromagnetic communication transmitting module 23 and the two battery packs 24 are respectively installed in the other three grooves, and the four grooves are sealed by four nonmagnetic sealing covers 25, so that the high-precision triaxial alternating magnetic field sensor 22, the electromagnetic communication transmitting module 23, the data acquisition processing module and the two battery packs 24 which are installed in the grooves are isolated from external drilling fluid.
Wherein, one end of the non-magnetic body 21 is provided with an external thread and is connected with a downhole motor, and the other end is provided with an internal thread and is connected with a drill bit; the three-axis alternating magnetic field sensor 22 is used to detect an alternating magnetic field generated on the adjacent well (i.e., drilled in this context) string; the electromagnetic communication transmitting module 23 is used for transmitting the detected alternating magnetic field data to the improved inclinometer while drilling through electromagnetic waves; the battery pack 24 is used for supplying power to the high-precision triaxial alternating magnetic field sensor 22, the electromagnetic communication transmitting module 23 and the data acquisition processing module. The high-precision triaxial alternating magnetic field sensor and the data acquisition and processing module are used for detecting an alternating magnetic field generated on an adjacent well pipe column; the electromagnetic communication transmitting module has the function of transmitting the detected alternating magnetic field data to the improved inclinometer while drilling through electromagnetic waves.
It should be noted that, in the embodiment of the present invention, the improved inclinometer while drilling may include: the electromagnetic communication device comprises a nonmagnetic metal shell with two closed ends, and an electromagnetic communication receiving module, a three-axis fluxgate sensor, a three-axis acceleration sensor, a data acquisition and processing module, a code sending control module and a rotation detection module are arranged in the shell.
The electromagnetic communication receiving module is used for receiving the data transmitted by the electromagnetic communication transmitting module; the triaxial fluxgate sensor, the triaxial acceleration sensor and the data acquisition and processing module are used for detecting a well inclination angle, an azimuth angle and a tool face angle; the rotation detection module is used for identifying the rotation state of the drill string; the code sending control module is a data acquisition and processing device (namely, a processor) which encodes the inclination angle, the azimuth angle and the tool face angle of the well and the data received by the electromagnetic communication receiving module according to the rotation state of the drill string, drives the mud pulse generator to generate pressure waves and transmits the encoded data to the ground.
As an optional embodiment, the electromagnetic distance measuring while drilling device further comprises: a generator for generating an electric current.
For example, in this embodiment, the generator may be a high power hydro turbine generator through which the electromagnetic distance measuring while drilling device may generate electrical current.
As an alternative embodiment, the while-drilling electrode may comprise: an injection electrode for emitting the current generated by the generator into the formation, wherein the current is collected and propagated on the drilled string; and the return electrode is used for receiving current flowing back from the stratum to generate an alternating magnetic field.
That is, the current generated by the high-power hydro turbine generator is emitted to the formation through the injection electrode, is gathered on the adjacent well pipe column and is propagated along the pipe column, and finally flows into the return electrode through the formation to form a closed loop.
As an alternative embodiment, the generator is further configured to recognize a rotation state of the drill string and supply power to the injection electrode and the return electrode when it is determined that the drill string stops rotating based on the recognition result.
Thus, here the while drilling electrode may comprise: the power supply comprises a high-power hydraulic turbine generator (namely, a generator), a current injection electrode, a return electrode, a rotation detection module, a power supply control module and a section of insulating bearing cable.
The function of the high-power hydraulic turbine generator is to provide electric power; the rotation detection module is used for identifying the rotation state of the drill string; the function of the power control module is to power the current injection and return electrodes when the drill string stops rotating.
Fig. 3 is a schematic diagram of a transmitting and receiving electromagnetic distance-while-drilling device according to an embodiment of the present invention, which is in a relief well (i.e., electromagnetic distance-while-drilling device in the context of fig. 3). The transmitting and receiving well-following electromagnetic distance measuring device can comprise: a near-bit weak magnetic detection short joint 34, an improved measurement while drilling probe 36, a mud pulse generator 37, an injection electrode 38, a return electrode 39, a high-power hydraulic turbine generator 303, an insulation bearing cable 31 and an insulation short joint 32; the near-bit weak magnetic detection nipple 34 is used for detecting an alternating magnetic field around the adjacent well 30 pipe column; the modified measurement-while-drilling probe 36 is used for receiving data transmitted by the electromagnetic communication transmitting module and detecting a well inclination angle, an azimuth angle and a tool face angle; the mud pulse generator 37 is used for supplying power to the improved measurement while drilling probe 36; the injection electrode 38 and the return electrode 39 form a closed loop in the downhole direction of the generated current; the high power hydro turbine generator 303 is used to provide electrical power.
In a specific application scenario, a near-bit weak magnetic detection short joint 34, an improved inclinometer while drilling pipe 36, a mud pulse generator 37, electrodes 38 and 39 while drilling and an insulation short joint 32 are put into a forward drilling well along with a drilling column and the forward drilling well is drilled to a well depth position needing adjacent well distance measurement; the power injection function of the while-drilling electrodes 38 and 39 and the electromagnetic communication data receiving function of the improved while-drilling inclinometer probe 36 are started, the current generated by the high-power hydraulic turbine generator 303 is transmitted to the stratum through the injection electrode 38, is gathered on the adjacent well pipe column 301 and is transmitted along the pipe column 301, and finally flows into the return electrode 39 through the stratum to form a closed loop; the near-bit weak magnetic detection sub 34 detects an alternating magnetic field (comprising a plurality of magnetic lines of force 302) around the adjacent well pipe string 301, transmits monitoring data to the improved inclinometer pipe 36, transmits downhole detection data to a surface data acquisition and processing device by combining the conventional wireless Measurement While Drilling (MWD) technology in the improved inclinometer pipe 36, and determines the distance and the direction from the drill bit to the adjacent drilled well by combining the measured well inclination angle, azimuth angle, tool face angle and the measurement data of the adjacent drilled well track by combining the MWD.
Here, it should be noted that the high power hydro turbine generator 303 can recognize the rotation state of the drill string when generating power, and supply power to the current injection electrode 38 and the return electrode 39 when the drill string stops rotating; in addition, the method for starting the power injection function of the while- drilling electrodes 38 and 39 and the electromagnetic communication data receiving function of the improved while-drilling inclinometer pipe 36 is as follows: the drill string rotation is started and stopped twice in succession.
The electromagnetic distance measuring while drilling device provided by the embodiment of the invention has the following beneficial effects: 1. the underground high-power hydraulic turbine generator is used for supplying power to the underground while-drilling electrode, the uploading of underground detection data is realized by using an MWD (measurement while drilling) technology, the whole measurement process does not need to trip, the normal operation of drilled wells and normal drilled wells is not influenced, and the drilling period is favorably shortened; 2. according to the distribution rule of the magnetic field generated by the current on the drilled tubular column, the magnetic field is synchronously transmitted to a ground computer in real time, the analysis and calculation are carried out on the magnetic field, the relative spatial position of the drill bit and the adjacent drilled well is finally determined, the generation of the measurement accumulated error of the relative position of the conventional adjacent well is avoided, and a scientific basis is provided for a directional well engineer to control the drill bit to carry out the next drilling; 3. can be widely used in various relief wells, cluster wells and double-horizontal well drilling projects in the sea and on land.
Example 2
In accordance with an embodiment of the present invention, there is provided a method embodiment of a method for spatial position determination of a drill bit and a borehole, it is noted that the method for spatial position determination of a drill bit and a borehole is applied to any of the electromagnetic distance measuring while drilling devices described above, the steps illustrated in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be executed in an order different from that shown.
Fig. 4 is a flowchart of a method for determining a spatial position of a drill bit and a borehole according to an embodiment of the present invention, and as shown in fig. 4, the method for determining a spatial position of a drill bit and a borehole includes the following steps:
step S402, receiving magnetic field detection data detected by the magnetic field sensor and measurement-while-drilling data detected by the measurement-while-drilling probe.
Alternatively, the magnetic field sensor may be used to detect an alternating magnetic field generated by a drilled well to obtain magnetic field detection data.
And S404, acquiring characteristic information of the drilled well, wherein the drilled well is an adjacent well in the drilling process.
And S406, determining the distance and the direction of the weak magnetic detection short joint relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information.
Step S408, the relative spatial position of the drilling well relative to the drilled well is determined according to the distance and the direction.
As can be seen from the above, in the embodiment of the present invention, the distance and the direction of the weak magnetic detection nipple relative to the drilled well can be determined based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information, and the relative spatial position of the drilled well relative to the drilled well can be determined according to the distance and the direction, so that the purpose of detecting the alternating magnetic field generated by the while-drilling electrode by using the magnetic field sensor to obtain the magnetic field detection data and determining the relative spatial position of the drilled well and the drilled well by combining the measurement while drilling data can be achieved, the drilling operation is not required, the normal operation of the drilled well and the drilled well cannot be influenced, and the whole drilling period is shortened.
Therefore, the method for determining the spatial position of the drill bit and the drilled well solves the technical problem that a tool applied to the rescue sub-guided drilling technology in the related art cannot realize wireless measurement of the distance between adjacent wells while drilling.
As an alternative embodiment, in step S402, receiving the magnetic field detection data detected by the magnetic field sensor and the measurement-while-drilling data detected by the measurement-while-drilling probe includes: starting an electricity injection function of the while-drilling electrode and a data receiving function of the while-drilling measurement probe based on electromagnetic communication so as to inject current into the stratum by using the while-drilling electrode to enable a drilling preset area to generate an alternating magnetic field, and simultaneously acquiring while-drilling measurement data by using the while-drilling measurement probe; detecting the alternating magnetic field by using a magnetic field sensor to obtain magnetic field detection data; and receiving magnetic field detection data and measurement while drilling data transmitted by an electromagnetic communication transmitter, wherein the electromagnetic communication transmitter is arranged in the weak magnetic detection short section.
For example, in this embodiment, the power injection function of the LWD electrode and the electromagnetic communication data receiving function of the modified LWD casing may be enabled to detect the alternating magnetic field, the angle of inclination, the azimuth angle, and the toolface angle generated on the adjacent well string.
It should be noted that, in a specific application, the method for starting the power injection function of the drill electrode and the electromagnetic communication data receiving function of the improved drill inclinometer probe comprises the following steps: the drill string rotation is started and stopped twice in succession.
As an alternative embodiment, before turning on the power injection function of the while-drilling electrode and the data receiving function of the measurement-while-drilling probe based on electromagnetic communication, the electromagnetic distance measuring-while-drilling device may further include: moving a part of the electromagnetic distance measuring while drilling device with the drill string into the well, wherein the part of the part comprises: the weak magnetic detection short section, the measurement while drilling probe, the mud pulse generator, the insulation short section and the electrode while drilling.
That is, in the embodiment of the present invention, before the power injection function of the measurement-while-drilling electrode and the data receiving function of the measurement-while-drilling probe based on electromagnetic communication are turned on, the near-bit weak magnetic detection nipple, the improved inclinometer-while-drilling probe, the mud pulse generator, the measurement-while-drilling electrode, and the insulation nipple are required to be lowered into the well while drilling.
As an alternative embodiment, part of the components in the electromagnetic distance measuring while drilling device are moved with the drill string into the well, comprising: acquiring drilling characteristic information of a drilling well and drilling characteristic information of a drilled well; determining distance scanning information of the drilling well and the adjacent well drilled based on the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; and moving part of components in the electromagnetic distance measuring while drilling device with the drill string to the drilling well based on the adjacent well distance scanning information.
In an embodiment of the present invention, the wellbore trajectory design information being drilled and the adjacent drilled wellbore trajectory information may include: the well head coordinates, the drill plate plane height, the ground elevation and the well bore configuration of the drilling well and the adjacent drilled well, and the well depth, the well angle and the azimuth of the drilled well section and the adjacent drilled well actual drilling trajectory.
As an alternative embodiment, the determining the distance and the direction of the weak magnetic test sub relative to the drilled well based on the magnetic field detection data, the measurement-while-drilling data and the drilled well characteristic information comprises: determining the radial distance between the drilled pipe column and the weak magnetic detection nipple; and determining an included angle between the high side direction of the drilled well and a preset projection direction, wherein the preset projection direction is the projection direction of the radial distance on the normal plane of the drilling direction of the drill bit.
The distance and the direction from the weak magnetic detection short joint of the near drill bit to the adjacent drilled well can be obtained according to the detected alternating magnetic field, the well inclination angle, the azimuth angle and the tool face angle generated on the adjacent well pipe column and the actual drilling track information of the drilled well.
Specifically, the distance and direction from the near-bit weak magnetic detection sub to the adjacent drilled well can include: radial distance r from adjacent well pipe column to near-bit weak magnetic detection short joint and projection r from high side direction of well bore to r on normal plane of drilling direction of bitnIncluded angle of direction Ahr。
In specific application, the radial distance r from the adjacent well pipe column to the weak magnetic detection short joint of the near drill bit is as follows:
wherein, mu0Is a vacuum magnetic conductivity; i is the intensity of the injected current; sigmacIs the electrical conductivity of the casing; r iscsIs the equivalent radius of the casing; b isx、By、BzRespectively detecting the three-axis component of the magnetic induction intensity of a magnetic field generated by the current on the pipe column; j. the design is a square0Is a zero-order first-class deformed Bessel function; j. the design is a square1Is a first-order first-class deformed Bessel function; k0Is a zero-order second-class deformation Bessel function; k1Is a first-order second-class deformation Bessel function; λ is the wave number along the direction of the borehole extension; r iswIs the well bore radius of the well being drilled; sigmaeIs the conductivity of the formation; sigmafIs the conductivity of the drilling fluid; l is the distance from the injection electrode to a three-axis alternating magnetic field sensor inside the weak magnetic detection short section of the near-bit; and alpha is the relative inclination angle between the drilled well and the drilled well.
In addition, the included angle Ahr from the high side direction of the well to the projection rn direction of r on the normal plane of the drilling direction of the drill bit is as follows:
wherein ω is the tool face angle; axt is the angle between the X axis of the sensor inside the improved measurement while drilling probe and the tool face.
Referring now to the drawings, wherein like reference numbers indicate like elements, fig. 5 is a flow chart of an alternative method for determining the spatial position of a drill bit and a borehole, according to an embodiment of the present invention, the method for determining the spatial position of a drill bit and a borehole includes the following steps:
and S51, acquiring the design information of the well track of the drilling well and the track information of the adjacent drilled well, and the well structure information of the drilling well and the adjacent drilled well.
And S52, acquiring adjacent well distance scanning information of the drilling well and the adjacent drilled well. Wherein, the distance scanning information of the drilling well and the adjacent well of the adjacent drilled well can comprise: well depth, scanning radius, scanning angle, etc. of the well section needing collision prevention in the drilling and drilled wells. In addition, the distance scanning information of the drilling well and the adjacent well of the adjacent drilled well can further comprise: normal distance scan radius and scan angle, and closest distance scan radius and scan angle.
And S53, placing the weak magnetic detection short joint of the near bit, the improved inclinometer while drilling pipe, the mud pulse generator, the electrode while drilling and the insulation short joint into the well while drilling.
And S54, normally drilling to a well depth position needing the adjacent well distance measurement.
And S55, starting the power injection function of the while-drilling electrode and the electromagnetic communication data receiving function of the improved while-drilling inclinometer probe, and detecting an alternating magnetic field, a well inclination angle, an azimuth angle and a tool face angle generated on the adjacent well pipe column.
And S56, acquiring the distance and direction from the weak magnetic detection short joint of the near bit to the adjacent drilled well according to the detected alternating magnetic field, the well inclination angle, the azimuth angle and the tool face angle generated on the adjacent well pipe column and the actual drilling track information of the drilled well.
And S57, determining the relative spatial position of the drilling well and the adjacent drilled well according to the distance and the direction from the weak magnetic detection short joint of the near-bit to the adjacent drilled well, and providing scientific basis for the directional well engineer to perform next deviation rectification control on the well track.
From the above, the method for determining the spatial position of the drill bit and the drilled well, provided by the embodiment of the invention, realizes the injection of current into the stratum and the weak magnetic detection of the near drill bit while drilling, and the wired tool is not required to be started or stopped in the whole measuring process, so that the method can realize the accurate measurement of the distance between adjacent wells on the premise of not influencing the normal operation of the drilled well and the drilled well, and is suitable for directional drilling engineering of various wells with complex structures, such as relief wells, bi-level wells, cluster wells and the like.
To sum up, the method for determining the spatial position of the drill bit and the drilled well provided by the embodiment of the invention utilizes the underground while-drilling electrode to inject current into the stratum, so that the adjacent well pipe column generates an alternating magnetic field due to the gathered current, then utilizes the high-precision three-axis alternating magnetic field sensor inside the weak magnetic detection short section of the near drill bit to realize the detection of the alternating magnetic field around the adjacent well pipe column, utilizes the electromagnetic wave wireless short transmission technology and the conventional wireless Measurement While Drilling (MWD) technology to transmit underground detection data to a ground data acquisition and processing device, combines the measured well inclination angle, azimuth angle, tool face angle and adjacent drilled well track measurement data to determine the distance and direction from the drill bit to the adjacent drilled well, and provides scientific basis for a directional drilling engineer to control the distance and direction from the drilled well. Has the following beneficial effects: the method realizes the injection of current into the stratum while drilling and the weak magnetic detection of the near-bit, and does not need to trip or stop the drilling and trip in wired tools in the whole measuring process, so the method can realize the accurate measurement of the distance between adjacent wells on the premise of not influencing the normal operation of the drilling well and the drilled well, and is suitable for directional drilling engineering of various wells with complex structures such as relief wells, double horizontal wells, cluster wells and the like.
Example 3
According to another aspect of the embodiments of the present invention, there is also provided a spatial position determining apparatus for a drill and a borehole, using any one of the above spatial position determining methods for a drill and a borehole, fig. 6 is a schematic diagram of the spatial position determining apparatus for a drill and a borehole according to the embodiments of the present invention, as shown in fig. 6, the spatial position determining apparatus for a drill and a borehole includes: a receiving unit 61, an obtaining unit 63, a first determining unit 65, and a second determining unit 67. The spatial position determining apparatus for the drill bit and the borehole will be described in detail below.
And the receiving unit 61 is used for receiving the magnetic field detection data detected by the magnetic field sensor and the measurement-while-drilling data detected by the measurement-while-drilling probe.
An obtaining unit 63, configured to obtain drilling characteristic information of a drilled well, where the drilled well is an adjacent well being drilled.
And the first determination unit 65 is used for determining the distance and the direction of the weak magnetic detection short joint relative to the drilled well based on the magnetic field detection data, the measurement-while-drilling data and the drilled well characteristic information.
A second determination unit 67 for determining the relative spatial position of the drilling in relation to the drilled well, based on the distance and direction.
It should be noted here that the receiving unit 61, the obtaining unit 63, the first determining unit 65, and the second determining unit 67 correspond to steps S402 to S408 in embodiment 2, and the modules are the same as the corresponding steps in the implementation example and application scenario, but are not limited to the disclosure in embodiment 2. It should be noted that the modules described above as part of an apparatus may be implemented in a computer system such as a set of computer-executable instructions.
As can be seen from the above, in the embodiment of the present invention, the receiving unit may be used to receive the magnetic field detection data detected by the magnetic field sensor and the measurement-while-drilling data detected by the measurement-while-drilling probe; then, acquiring drilling characteristic information of the drilled well by using an acquisition unit, wherein the drilled well is an adjacent well of the drilling well; determining the distance and the direction of the weak magnetic detection short section relative to the drilled well by utilizing a first determination unit based on the magnetic field detection data, the measurement-while-drilling data and the drilled well characteristic information; and determining, with the second determination unit, the relative spatial position of the drilling well relative to the drilled well as a function of the distance and the direction. The device for determining the spatial position of the drill bit and the well drilling realizes the purposes of detecting the alternating magnetic field generated by the while-drilling electrode by using the magnetic field sensor to obtain magnetic field detection data and determining the relative spatial position of the well drilling and the drilled well by combining the while-drilling measurement data, does not need to trip the well during the whole measurement process, does not influence the normal operation of the drilled well and the drilled well, shortens the whole well drilling period, and solves the technical problem that the tool applied to the rescue sub-guided well drilling technology in the related technology cannot realize the wireless measurement of the distance between adjacent wells while drilling.
Optionally, the receiving unit includes: the starting module is used for starting the power injection function of the while-drilling electrode and the data receiving function of the while-drilling measurement probe based on electromagnetic communication, so that the current is injected into the stratum by the while-drilling electrode to enable a drilling preset area to generate an alternating magnetic field, and meanwhile, the while-drilling measurement probe is used for acquiring while-drilling measurement data; the detection module is used for detecting the alternating magnetic field by using the magnetic field sensor to obtain magnetic field detection data; and the receiving module is used for receiving the magnetic field detection data and the measurement while drilling data transmitted by the electromagnetic communication transmitter, wherein the electromagnetic communication transmitter is arranged in the weak magnetic detection short section.
Optionally, the device for determining the spatial position of the drill bit and the drilled well further comprises: the moving module is used for moving part of components in the electromagnetic distance measuring while drilling device to a drilling well along with a drill string before starting the power injection function of the while-drilling electrode and the data receiving function of the while-drilling measurement probe based on electromagnetic communication, wherein the part of components comprise: the weak magnetic detection short section, the measurement while drilling probe, the mud pulse generator, the insulation short section and the electrode while drilling.
Optionally, a mobile module comprising: the acquisition submodule is used for acquiring drilling characteristic information of a drilling well and drilling characteristic information of a drilled well; the determining sub-module is used for determining distance scanning information between the drilling well and the adjacent well drilled based on the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well; and the moving sub-module is used for moving part of components in the electromagnetic distance measuring while drilling device to the drilling well along with the drill string based on the adjacent well distance scanning information.
Optionally, the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well each comprise: well track information, well structure information; wherein the wellbore trajectory information comprises: well head coordinate, drill plate plane height, ground elevation, well drilling characteristic information of well drilling still include: a drilled section, the drilled well characteristic information further comprising: well depth, angle of inclination and azimuth of the actual drilling trajectory.
Optionally, the adjacent well distance scanning information comprises: well depth, scan radius and scan angle of the well section requiring collision prevention in the drilling and drilled wells.
Optionally, the second determining unit includes: the first determination module is used for determining the radial distance between the drilled tubular column and the weak magnetic detection short joint; and the second determination module is used for determining an included angle between the high side direction of the drilled well and a preset projection direction, wherein the preset projection direction is the projection direction of the radial distance on the normal plane of the drilling direction of the drill bit.
Example 4
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored computer program, wherein when the computer program is executed by a processor, the computer-readable storage medium is controlled to implement the method for determining a spatial position of a drill bit and a borehole according to any one of the above.
Example 5
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing a computer program, wherein the computer program is executed to execute the method for determining the spatial position of the drill bit and the drilled well.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (16)
1. An electromagnetic distance measuring while drilling device, comprising:
the drilling electrode is used for injecting current into the stratum so as to enable a drilled preset area to generate an alternating magnetic field, wherein the drilled well is an adjacent well in the drilling process;
the magnetic field sensor is used for detecting the alternating magnetic field to obtain magnetic field detection data;
a processor configured to receive the magnetic field detection data and measurement while drilling data, and determine a phase space position of a drill bit and the drilled well based on the magnetic field detection data and the measurement while drilling data.
2. The electromagnetic while drilling ranging device of claim 1, further comprising:
the electromagnetic communication transmitter is used for transmitting the magnetic field detection data to the measurement-while-drilling probe;
the measurement-while-drilling probe is used for receiving the magnetic field detection data transmitted by the electromagnetic communication transmitter and acquiring the measurement-while-drilling data;
and the mud pulse generator is used for providing a working power supply for the measurement while drilling probe.
3. The electromagnetic while drilling ranging device of claim 2, further comprising: weak magnetic detection short section; wherein, weak magnetism detects nipple joint includes:
the magnetic field sensor;
the electromagnetic communication transmitter is provided with a plurality of electromagnetic communication terminals,
one end of the non-magnetic body is connected with the downhole motor, and the other end of the non-magnetic body is connected with the drill bit;
a battery pack for providing operating power to the magnetic field sensor, the electromagnetic communication transmitter, and the processor.
4. The electromagnetic while drilling ranging device of claim 1, further comprising: a generator for generating an electric current.
5. The electromagnetic while drilling ranging device of claim 4, wherein the electrode while drilling comprises:
an injection electrode for emitting the current generated by the generator into the formation, wherein the current is collected and propagated on the drilled tubular string;
a return electrode for receiving current flowing back from the formation to generate the alternating magnetic field.
6. The electromagnetic while drilling ranging device of claim 5, wherein the generator is further configured to identify a rotation state of a drill string and to power the injection electrode and the return electrode when it is determined that the drill string stops rotating based on the identification result.
7. A method for determining the spatial position of a drill bit and a drilled well, which is applied to the electromagnetic distance measuring while drilling device of any one of claims 1 to 6, and comprises the following steps:
receiving magnetic field detection data detected by a magnetic field sensor and measurement while drilling data detected by a measurement while drilling probe;
acquiring characteristic information of a drilled well, wherein the drilled well is an adjacent well of a drilling well;
determining the distance and direction of a weak magnetic detection short joint relative to the drilled well based on the magnetic field detection data, the measurement while drilling data and the drilled well characteristic information;
determining a relative spatial position of the well being drilled relative to the drilled well based on the distance and the direction.
8. The method of claim 7, wherein receiving magnetic field detection data detected by the magnetic field sensor and measurement-while-drilling data detected by the measurement-while-drilling probe comprises:
starting a power injection function of an electrode while drilling and a data receiving function of the measurement while drilling probe based on electromagnetic communication, so that the electrode while drilling is utilized to inject current into a stratum to enable the drilled preset area to generate an alternating magnetic field, and the measurement while drilling probe is utilized to obtain measurement while drilling data;
detecting the alternating magnetic field by using the magnetic field sensor to obtain the magnetic field detection data;
and receiving the magnetic field detection data and the measurement while drilling data transmitted by an electromagnetic communication transmitter, wherein the electromagnetic communication transmitter is arranged in the weak magnetic detection short section.
9. The method as recited in claim 8, wherein before the power injection function of the while drilling electrode and the data receiving function of the measurement while drilling probe based on electromagnetic communication are turned on, the method further comprises:
moving a sub-assembly of the electromagnetic while drilling ranging device with a drill string into the drilling well, wherein the sub-assembly comprises: the weak magnetic detection short section, the measurement while drilling probe, the mud pulse generator, the insulation short section and the electrode while drilling.
10. The method as recited in claim 9, wherein moving a portion of components of the electromagnetic while drilling ranging device with a drill string into the drilling well comprises:
acquiring the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well;
determining distance scanning information between the drilling well and the adjacent well drilled based on the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well;
moving a portion of components in the electromagnetic ranging while drilling device with a drill string into the drilling well based on the adjacent well distance scan information.
11. The method of claim 10, wherein the drilling characteristic information of the drilling well and the drilling characteristic information of the drilled well each comprise: well track information, well structure information; wherein the wellbore trajectory information comprises: well head coordinate, drill plate plane height, ground elevation, well drilling characteristic information of well drilling still includes: a drilled section, the drilled well characteristic information further comprising: well depth, angle of inclination and azimuth of the actual drilling trajectory.
12. The method of claim 10, wherein the adjacent well distance scan information comprises: well depth, scanning radius and scanning angle of the well section needing anti-collision of the well being drilled and the drilled well.
13. The method of any one of claims 7 to 12, wherein determining a distance and a direction of a weak magnetic test sub relative to the drilled well based on the magnetic field survey data, the measurement while drilling data, and the drilled well characterization information comprises:
determining the radial distance between the drilled pipe column and the weak magnetic detection nipple;
and determining an included angle between the high side direction of the drilled well and a preset projection direction, wherein the preset projection direction is the projection direction of the radial distance on the normal plane of the drilling direction of the drill bit.
14. A device for determining the spatial position of a drill bit and a borehole, wherein the method for determining the spatial position of a drill bit and a borehole according to any one of claims 7 to 13 is used, and comprises:
the receiving unit is used for receiving magnetic field detection data detected by the magnetic field sensor and measurement-while-drilling data detected by the measurement-while-drilling probe;
the device comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring drilling characteristic information of a drilled well, and the drilled well is an adjacent well of a drilling well;
a first determination unit, configured to determine a distance and a direction of a weak magnetic detection sub with respect to the drilled well based on the magnetic field detection data, the measurement while drilling data, and the drilled well characteristic information;
a second determination unit for determining the relative spatial position of the drilling well with respect to the drilled well based on the distance and the direction.
15. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed by a processor, controls an apparatus in which the computer-readable storage medium is located to perform the method of determining a spatial position of a drill bit and a borehole according to any one of claims 7 to 13.
16. A processor for executing a computer program, wherein the computer program is configured to execute the method for determining the spatial position of a drill bit and a borehole according to any of the preceding claims 7 to 13.
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