CN111337236A - Integral bending resistance simulation experiment device and method for deepwater surface conduit feeding tool - Google Patents
Integral bending resistance simulation experiment device and method for deepwater surface conduit feeding tool Download PDFInfo
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- CN111337236A CN111337236A CN202010185482.8A CN202010185482A CN111337236A CN 111337236 A CN111337236 A CN 111337236A CN 202010185482 A CN202010185482 A CN 202010185482A CN 111337236 A CN111337236 A CN 111337236A
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Abstract
The invention discloses an integral bending resistance simulation experiment device and method for a deepwater surface conduit feeding tool. According to the device and the method for simulating the integral tensile strength of the deepwater surface conduit feeding tool, the integral bending and pulling performance of the feeding tool in the deepwater continuous drilling process can be simulated through the motor, the data collector, the controller and the like, the weak point of the integral bending resistance of the feeding tool and the influence of the weak point on the deepwater conduit feeding operation are determined, a basis is provided for deepwater conduit jet feeding, the number of accidents in the deepwater conduit jet feeding process is reduced, and the safety, the efficiency and the accuracy of drilling are improved.
Description
Technical Field
The invention relates to the technical field of marine oil and gas drilling, in particular to a device and a method for simulating the whole bending resistance of a deepwater surface conduit feeding tool.
Background
Deep water drilling generally refers to drilling with offshore operation water depth exceeding 900 meters, in the ocean engineering oil and gas drilling industry, a deep water surface conduit feeding tool can greatly save time for repeatedly replacing tools such as a drill rod and the like in the underwater drilling process, so that the effect of reducing drilling risks and cost is achieved, the deep water surface conduit feeding tool is a key tool for realizing deep water injection, the feeding tool is assembled with a drill bit and other lower drilling tools, the assembled tools are combined with a low-pressure well head, a surface conduit and a mud pad and then are put into a specified position of the sea bottom to perform injection operation. After the deep water surface layer guide pipe feeding tool is ejected in place, the upper release pin is sheared through complex mechanical operation, release of the deep water surface layer guide pipe feeding tool is achieved, the mandrel is lowered to perform 'two-way' drilling and drilling in place, the drill rod is lifted up, the positioning pin between the deep water surface layer guide pipe feeding tool and the low-pressure wellhead is sheared through lifting force, the deep water surface layer guide pipe feeding tool is separated from the low-pressure wellhead, and the tool is successfully recovered.
When the jet pipe-setting technology is used, the deepwater surface pipe feeding tool can be bent to a certain degree in the deepwater surface pipe feeding tool in the deepwater surface pipe feeding process, the deepwater surface pipe feeding tool, the surface pipe feeding process and the like, and the deepwater surface pipe feeding tool is laid, placed and recycled. During the running, installation and recovery processes, the running tool may be bent by the action of waves, tides, pipes and other devices, and the bending phenomenon cannot be avoided. If the bending moment that the deep water surface conduit running-in tool can bear is small and can not bear load, then the running-in tool can be severely deformed, the working efficiency of the running-in tool is reduced slightly, the drilling task can not be completed on time, and the whole running-in tool is scrapped seriously, so that huge economic loss is caused.
However, since laboratory studies are lack of corresponding simulation devices, stress analysis and implementation of bending resistance of the deepwater surface layer conduit running tool capable of resisting bending moment generated by transverse force cannot be effectively studied, evaluation indexes and judgment bases for the whole bending resistance of the deepwater surface layer conduit running tool are lacked, so that normal operation of the deepwater surface layer conduit running tool in the whole working process cannot be guaranteed, reasonable bending resistance parameters and other corresponding data cannot be provided for deepwater conduit injection running, and severe bending of the deepwater surface layer conduit running tool in the actual production process is easily caused, and normal operation cannot be realized.
Disclosure of Invention
The invention aims to provide an integral bending resistance simulation experiment device and method for a deepwater surface conduit feeding tool, which can perform indoor experiment simulation and evaluation on the integral bending resistance of the feeding tool in the deepwater surface conduit feeding process, and are used for solving the problem that the stress analysis and implementation of the bending resistance of the deepwater surface conduit feeding tool capable of resisting bending moment generated by transverse force cannot be effectively researched.
The invention provides an integral bending resistance simulation experiment device of a deepwater surface conduit feeding tool, which comprises an experiment frame, a base, the deepwater surface conduit feeding tool, a tension sensor, an adapter, a pressure sensor, a first motor, a second motor, a plurality of stress sensors, a data collector and a controller, wherein the experiment frame comprises a horizontal beam and two supporting pieces for supporting two ends of the beam, the two supporting pieces are fixed on the base, the bottom of the deepwater surface conduit feeding tool is fixed on the base, the adapter is arranged at the top end of the deepwater surface conduit feeding tool, and the beam of the experiment frame horizontally penetrates through the adapter; the first motor and the second motor are respectively fixed on two supporting pieces of the experiment frame, two ends of a cross beam of the experiment frame are respectively and vertically fixed with two screw rods, output shafts of the first motor and the second motor are respectively fixed with gears, and the two screw rods on the cross beam of the experiment frame are respectively meshed with the gears of the first motor and the second motor; the tension sensor and the pressure sensor are respectively arranged on output shafts of the first motor and the second motor, the stress sensors are respectively arranged in the adapter and the deepwater surface conduit feeding tool, the tension sensor, the pressure sensor and the stress sensors are all connected with the data collector, and the data collector is connected with the controller through a wire.
Preferably, the stress sensors include an adapter stress sensor, a mandrel stress sensor, a bushing stress sensor and a bottom bushing stress sensor, the adapter stress sensor is arranged at the adapter, the mandrel stress sensor is arranged on the mandrel of the deepwater surface layer conduit feeding tool, the bushing stress sensor is arranged on the bushing of the deepwater surface layer conduit feeding tool, the bottom bushing stress sensor is arranged on the bottom bushing of the deepwater surface layer conduit feeding tool, and the adapter stress sensor, the mandrel stress sensor, the bushing stress sensor and the bottom bushing stress sensor are all connected with the data collector.
Preferably, the middle part of the adapter is provided with a hollow groove which is matched with a cross beam of the experiment frame, the lower part of the adapter is provided with a tapered threaded joint, and the tapered threaded joint at the lower part of the adapter is matched with a tapered thread at the end part of a core shaft of the deepwater surface conduit feeding tool.
The invention also discloses an integral bending resistance simulation experiment method of the deepwater surface conduit running tool, which comprises the following steps of:
step S1: starting a first motor, wherein the first motor provides upward pulling force to one end of a cross beam of the experiment frame;
step S2: starting a second motor, and providing downward pressure for the other end of the experimental frame beam by the second motor;
step S3: the two ends of the experimental frame beam are respectively forced to form bending moment supplied to the deepwater surface conduit feeding tool under the combined action of pulling force and pressure, and the deepwater surface conduit feeding tool is bent outwards;
step S4: controlling the rotation output force and the rotation number of turns of the first motor and the second motor, and adjusting the bending degree of the deepwater surface conduit feeding tool;
step S5: the tension sensor and the pressure sensor respectively transmit tension and pressure respectively applied to two ends of the experimental frame cross beam to the controller through the data acquisition unit until the tension and the pressure respectively applied to the two ends of the experimental frame cross beam respectively reach respective design values;
step S6: the adapter stress sensor collects a stress value and a bending deformation value, the core shaft stress sensor collects a stress value and a bending deformation value of the core shaft, the bushing stress sensor collects a stress value and a bending deformation value of the bushing, and the bottom shaft sleeve stress sensor collects a stress value and a bending deformation value of the bottom shaft sleeve and transmits the stress value and the bending deformation value to the data collector and the controller in sequence;
step S7: and analyzing the weak point of the whole bending damage resistance of the deepwater surface conduit feeding tool according to the stress value and the bending deformation value.
The invention has the beneficial effects that:
according to the device and the method for simulating the integral tensile strength of the deepwater surface conduit feeding tool, the integral bending and pulling performance of the feeding tool in the deepwater continuous drilling process can be simulated through the motor, the data collector, the controller and the like, and indoor experimental evaluation is performed on the feeding tool, so that the weak point of the integral bending resistance of the feeding tool and the influence of the weak point on deepwater conduit operation are determined, a basis is provided for deepwater conduit injection and running-in, the number of accidents in the deepwater conduit injection and running-in process is reduced, and the safety, the efficiency and the accuracy of drilling are improved.
Drawings
Fig. 1 is a schematic structural diagram of an integral bending resistance simulation experiment device of a deepwater surface conduit running tool provided in embodiment 1 of the present invention;
fig. 2 is a schematic half-sectional view of a deepwater surface conductor running tool provided in embodiment 1 of the present invention.
Description of the reference numerals
FIG. 1: 1-experiment frame; 2-a base; 4-deep water surface conduit feeding tool; 5-a tension sensor; 6-adapter; 7-a pressure sensor; 81-a first motor; 82-a second motor; 91-adapter stress sensor; 92-mandrel stress sensor; 93-a bushing stress sensor; 94-bottom shaft sleeve stress sensor; 10-a data collector; 11-a controller;
FIG. 2: 401-a mandrel; 402-a liner; 403-a push rod; 404-locking a clamp spring; 405-a position indicating rod; 406-release of the pin; 407-anti-rotation pins; 408-a locating pin; 409-a body; 410-drain holes; 420-conical sliding sleeve.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "left" and "right" are orientations or positional relationships described based on the drawings, and are for convenience of description of the present invention. The terms "first", "second", etc. are used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Example 1
Example 1 provides a simulation experiment device for the integral bending resistance of a deepwater surface conduit running tool, and the structure of the simulation experiment device is described in detail below.
Referring to fig. 1, the whole bending resistance simulation experiment device for the deepwater surface conduit running tool comprises an experiment frame 1, a base 2, a deepwater surface conduit running tool 4, a tension sensor 5, an adapter 6, a pressure sensor 7, a first motor 81, a second motor 82, a plurality of stress sensors, a data collector 10 and a controller 11,
the base 2 is a reinforced concrete structure base, the experiment frame 1 comprises a horizontal beam and two supporting pieces for supporting two ends of the beam, the two supporting pieces are fixed on the base 2, the bottom of the deepwater surface layer conduit feeding tool 4 is fixed on the base 2, the adapter 6 is arranged at the top end of the deepwater surface layer conduit feeding tool 4, and the beam of the experiment frame 1 horizontally penetrates through the adapter 6.
The first motor 81 and the second motor 82 are respectively fixed on two supporting pieces of the experiment frame 1, two ends of a cross beam of the experiment frame 1 are respectively and vertically fixed with two screw rods, output shafts of the first motor 81 and the second motor 82 are respectively fixed with a gear, and the two screw rods on the cross beam of the experiment frame 1 are respectively meshed with the gears of the first motor 81 and the second motor 82.
Tension sensor 5 and pressure sensor 7 set up respectively on the output shaft of first motor 81 and second motor 82, and tension sensor 5 and pressure sensor 7 all are connected with data collection station 10, link to each other through wired between data collection station 10 and the controller 11.
A plurality of stress sensors are respectively arranged inside the adapter 6 and the deepwater surface conduit running tool 4. Specifically, the multiple stress sensors include an adapter stress sensor 91, a mandrel stress sensor 92, a bushing stress sensor 93, and a bottom sleeve stress sensor 94, the adapter stress sensor 91 is welded at the adapter 6, the mandrel stress sensor 92 is welded on a mandrel 401 of the deepwater surface layer conduit feeding tool 4, the bushing stress sensor 93 is welded on a bushing 402 of the deepwater surface layer conduit feeding tool 4, the bottom sleeve stress sensor 94 is welded on a bottom sleeve of the deepwater surface layer conduit feeding tool 4, and the adapter stress sensor 91, the mandrel stress sensor 92, the bushing stress sensor 93, and the bottom sleeve stress sensor 94 are all connected to the data collector 10.
The middle part of the adapter 6 is provided with an empty groove which is matched with the beam of the experiment frame 1, the lower part of the adapter 6 is provided with a tapered threaded joint, and the tapered threaded joint at the lower part of the adapter 6 is matched with the tapered thread at the end part of the mandrel 401 of the deepwater surface conduit feeding tool 4.
In one embodiment, the first motor 81 is started to provide an upward pulling force to the left end of the horizontal beam of the experiment frame 1, and the second motor 82 is started to provide a downward pressing force to the right end of the horizontal beam of the experiment frame 1, so that the beam of the experiment frame 1 provides a bending moment to the deepwater surface conduit running tool 4. The tension sensor 5, the pressure sensor 7, the adapter stress sensor 91, the mandrel stress sensor 92, the bushing stress sensor 93 and the bottom shaft sleeve stress sensor 94 transmit the stress value and the bending deformation value which are respectively acquired to the data acquisition unit 10 and the controller 11 in sequence, and the weak point of the whole bending damage resistance of the deepwater surface conduit feeding tool 4 is analyzed according to the stress value and the bending deformation value.
In the above embodiment, the data collector 10 is a data acquisition product with a USB interface, and can be connected to various desktop computers and notebook computers with USB interfaces. The controller 11 may be a desktop computer, a notebook computer, or the like.
Referring to fig. 2, the deepwater surface conductor running tool 4 comprises a mandrel 401, a bushing 402, a push rod 403; a locking clamp spring 404, a position indicating rod 405, a releasing pin 406, an anti-rotation pin 407, a positioning pin 408, a body 409, a liquid discharge hole 410 and a conical sliding sleeve 420,
the conical sliding sleeve 420 is sleeved outside the bushing 402, the conical sliding sleeve 420 is connected with the bushing 402 through threads, and a clamping part is arranged outside the conical sliding sleeve 420;
the body 409 is sleeved outside the conical sliding sleeve 420;
a bottom shaft sleeve is arranged on the outer side of the bottom of the conical sliding sleeve 420;
the body 409 is provided with a plurality of through radial holes;
the push rod 403 is arranged in the radial hole;
one end of the push rod 403 is matched with the clamping part to form a conical matching structure, and the other end of the push rod is provided with a locking clamp spring 404;
the position indicating rod 405 can synchronously and axially move with the conical sliding sleeve 420;
the anti-rotation pin 407 is used for preventing the body 409 and the surface layer conduit from rotating relatively;
the dowel 408 is used to prevent the body 409 from maintaining a connection with the surface conduit after the release dowel 406 shears.
The deep water surface conduit feeding tool 4 is a prior art, and for more detailed introduction of the internal structure of the deep water surface conduit feeding tool 4, reference is made to the "deep water drilling surface conduit feeding tool" (application number is CN201510365639.4), the "catheter head feeding tool with continuous drilling function" (application number is cn201820933404.x), the "deep water surface conduit feeding tool and its operation method" (application number is 201911125180.5), and the like.
Example 2
Embodiment 2 provides an entire bending resistance simulation experiment method for a deepwater surface layer conduit running tool, and the entire bending resistance simulation experiment device for the deepwater surface layer conduit running tool provided in embodiment 1 is adopted, and the entire bending resistance simulation experiment method includes the following steps:
step S1: starting a first motor 81, wherein the first motor 81 provides an upward pulling force for one end of a cross beam of the experiment frame 1;
step S2: starting the second motor 82, and providing downward pressure for the other end of the cross beam of the experiment frame 1 by the second motor 82;
step S3: the two ends of the cross beam of the experiment frame 1 are respectively under the combined action of pulling force and pressure to enable the cross beam of the experiment frame 1 to form bending moment provided for the deepwater surface conduit feeding tool 4, and the deepwater surface conduit feeding tool 4 is bent outwards;
step S4: controlling the rotation output force and the rotation number of turns of the first motor 81 and the second motor 82, and adjusting the bending degree of the deepwater surface conduit feeding tool 4;
step S5: the tension sensor 5 and the pressure sensor 7 respectively transmit tension and pressure respectively applied to two ends of the cross beam of the experimental frame 1 to the controller 11 through the data acquisition unit 10 until the tension and pressure respectively applied to two ends of the cross beam of the experimental frame 1 respectively reach respective design values;
step S6: the adapter stress sensor 91 collects a stress value and a bending deformation value, the core shaft stress sensor 92 collects a stress value and a bending deformation value of the core shaft 401, the bushing stress sensor 93 collects a stress value and a bending deformation value of the bushing 402, and the bottom shaft bushing stress sensor 94 collects a stress value and a bending deformation value of the bottom shaft bushing, and the adapter stress sensor 91, the core shaft stress sensor 92, the bushing stress sensor 93 and the bottom shaft bushing stress sensor 94 sequentially transmit the stress value and the bending deformation value which are respectively collected to the data collector 10 and the controller 11;
step S7: and analyzing the weak point of the whole bending damage resistance of the deepwater surface conduit feeding tool 4 according to the stress value and the bending deformation value.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (4)
1. An integral bending resistance simulation experiment device for a deepwater surface conduit feeding tool is characterized by comprising an experiment frame (1), a base (2), the deepwater surface conduit feeding tool (4), a tension sensor (5), an adapter (6), a pressure sensor (7), a first motor (81), a second motor (82), a plurality of stress sensors, a data collector (10) and a controller (11),
the experimental frame (1) comprises a horizontal beam and two supporting pieces for supporting two ends of the beam, the two supporting pieces are fixed on the base (2), the bottom of the deepwater surface layer conduit feeding tool (4) is fixed on the base (2), the adapter (6) is arranged at the top end of the deepwater surface layer conduit feeding tool (4), and the beam of the experimental frame (1) horizontally penetrates through the adapter (6);
the first motor (81) and the second motor (82) are respectively fixed on two supporting pieces of the experiment frame (1), two ends of a cross beam of the experiment frame (1) are respectively and vertically fixed with two screw rods, output shafts of the first motor (81) and the second motor (82) are respectively and fixedly provided with gears, and the two screw rods on the cross beam of the experiment frame (1) are respectively meshed with the gears of the first motor (81) and the second motor (82);
the tension sensor (5) and the pressure sensor (7) are respectively arranged on output shafts of the first motor (81) and the second motor (82), the stress sensors are respectively arranged in the adapter (6) and the deepwater surface conduit feeding tool (4), the tension sensor (5), the pressure sensor (7) and the stress sensors are all connected with the data collector (10), and the data collector (10) is connected with the controller (11) through a wire.
2. The deepwater surface conductor running tool integral bend resistance simulation experiment device as claimed in claim 1, wherein the plurality of stress sensors comprise an adapter stress sensor (91), a mandrel stress sensor (92), a bushing stress sensor (93) and a bottom bushing stress sensor (94), the adapter stress sensor (91) is arranged at the adapter (6), the mandrel stress sensor (92) is arranged on a mandrel (401) of the deepwater surface conductor running tool (4), the bushing stress sensor (93) is arranged on a bushing (402) of the deepwater surface conductor running tool (4), and the bottom bushing stress sensor (94) is arranged on a bottom bushing of the deepwater surface conductor running tool (4),
adapter stress sensor (91), dabber stress sensor (92), bush stress sensor (93), bottom axle sleeve stress sensor (94) all are connected with data collection station (10).
3. The deep water surface conduit running tool whole bending resistance simulation experiment device according to claim 1, wherein the middle part of the adapter (6) is provided with a hollow groove which is matched with the beam of the experiment frame (1), the lower part of the adapter (6) is provided with a tapered threaded joint, and the tapered threaded joint at the lower part of the adapter (6) is matched with the tapered thread at the end part of the mandrel (401) of the deep water surface conduit running tool (4).
4. The deepwater surface conduit running tool integral bending-resistance simulation experiment method, which adopts the deepwater surface conduit running tool integral bending-resistance simulation experiment device as claimed in claim 2, and is characterized by comprising the following steps of:
step S1: starting a first motor (81), wherein the first motor (81) provides upward pulling force for one end of a cross beam of the experiment frame (1);
step S2: starting a second motor (82), wherein the second motor (82) provides downward pressure for the other end of the cross beam of the experiment frame (1);
step S3: the two ends of the cross beam of the experimental frame (1) are respectively under the combined action of pulling force and pressure to enable the cross beam of the experimental frame (1) to form bending moment provided for the deepwater surface conduit feeding tool (4), and the deepwater surface conduit feeding tool (4) is bent outwards;
step S4: controlling the rotation output force and the rotation number of turns of the first motor (81) and the second motor (82) to adjust the bending degree of the deepwater surface conduit feeding tool (4);
step S5: the tension sensor (5) and the pressure sensor (7) respectively transmit tension and pressure respectively applied to two ends of the cross beam of the experimental frame (1) to the controller (11) through the data acquisition unit (10) until the tension and pressure respectively applied to two ends of the cross beam of the experimental frame (1) respectively reach respective design values;
step S6: the adapter stress sensor (91) collects the stress value and the bending deformation value, the mandrel stress sensor (92) collects the stress value and the bending deformation value of the mandrel (401), the bushing stress sensor (93) collects the stress value and the bending deformation value of the bushing (402), and the bottom shaft sleeve stress sensor (94) successively transmits the collected stress value and the bending deformation value of the bottom shaft sleeve to the data collector (10) and the controller (11);
step S7: and analyzing the weak point of the whole bending damage resistance of the deepwater surface conduit feeding tool (4) according to the stress value and the bending deformation value.
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| CN202010185482.8A CN111337236B (en) | 2020-03-17 | 2020-03-17 | Integral bending resistance simulation experiment device and method for deepwater surface conduit feeding tool |
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| CN110778273A (en) * | 2019-11-18 | 2020-02-11 | 中国石油大学(北京) | Deepwater surface conduit running tool and operation method thereof |
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| CN105089498A (en) * | 2014-05-07 | 2015-11-25 | 中国石油化工股份有限公司 | Experiment device and method for deep-water jetting, guiding pipe releasing and well drilling |
| CN206038436U (en) * | 2016-09-23 | 2017-03-22 | 西南石油大学 | Crooked tubular column fatigue test device |
| CN107167390A (en) * | 2017-05-22 | 2017-09-15 | 中国海洋石油总公司 | A kind of deepwater subsea well mouthful fatigue experimental device |
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