CN112065363A - Water injection well water absorption profile measuring device and method - Google Patents
Water injection well water absorption profile measuring device and method Download PDFInfo
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- CN112065363A CN112065363A CN202011079962.2A CN202011079962A CN112065363A CN 112065363 A CN112065363 A CN 112065363A CN 202011079962 A CN202011079962 A CN 202011079962A CN 112065363 A CN112065363 A CN 112065363A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The embodiment of the application discloses water injection well measuring device and method, the device include the barrel, the barrel has set gradually along its axis direction: the connecting end is arranged at one end of the cylinder body and is used for connecting external equipment; the calculating part is arranged in the cylinder body and comprises a circuit and a calculating element, and the calculating element is electrically connected with the external equipment and is used for calculating and counting the measured data; the temperature testing part is arranged in the cylinder and used for measuring the temperature in the water injection well; the water flow testing part is arranged in the cylinder and used for measuring the water flow in the water injection well; the guide end is arranged at the other end of the cylinder body and is used for guiding the cylinder body to enter the water injection well; wherein, the calculation part, the temperature test part and the water flow test part are electrically connected. The device can measure and analyze the water absorption condition of each layer section efficiently and accurately, thereby effectively adjusting the water distribution technical scheme of the water injection well and reducing cost and improving efficiency for oil field development.
Description
Technical Field
The application relates to the technical field of oil and gas field development, in particular to a water injection well water absorption profile testing device and method.
Background
In recent years, with the increase of the development of oil fields, the mixed water injection process becomes difficult to meet the requirement of fine water injection of oil reservoirs, because when the mixed water injection is carried out under the same pressure system, the phenomenon of uneven water inlet distribution of each layer section occurs, namely a large amount of water enters some intervals, water enters other intervals rarely, and even water does not enter the intervals, and as a result, crude oil in the oil intervals without water inlet is difficult to displace. These phenomena all seriously affect the development effect of the oil field and cannot adapt to the need of oil field adjustment. Therefore, research and development of the stratified water injection process become important, and the stratified water injection process can ensure reasonable and uniform water injection quantity of each oil layer, thereby increasing the water-oil displacement rate of each oil layer and improving the recovery ratio.
The principle of separate layer water injection is to divide each layer according to the principle that the oil layer property, oil saturation, pressure and the like are similar and the layers are adjacent, and according to the specific requirements and actual conditions of the development scheme, proper water injection layer sections are divided, under the general condition, the number of the layers corresponds to the oil production well layer sections, and separate layer water injection is implemented under the assistance of underground technical countermeasures, so that the formation pressure is ensured, and the purpose of improving the oil well yield is achieved. The implementation of the separated layer water injection is that a packer in a water injection well is utilized to divide an oil layer into a plurality of water injection layer sections, and then adjustable water distributors are arranged in each water injection layer section. After the water injection amount of each stratum is proportioned, the water absorption amount of each water distributor needs to be measured underground, so that the stratum water absorption amount is judged, and the water distributors are adjusted according to the water absorption amount to achieve the stratum proportioning. The instruments for measuring the water injection flow rate in the existing market mostly use an electromagnetic flowmeter and an ultrasonic flowmeter as main instruments, and when one water distributor is thick corresponding to the well conditions of a plurality of stratums or a single stratum and the water absorption capacity of the upper, middle and lower sections of the stratum needs to be obtained, the electromagnetic flowmeter, the ultrasonic flowmeter and the like can only measure the water absorption capacity of the water distributor systematically, and the water absorption conditions of all layers (or the upper, middle and lower sections of the single layer) in one packer section cannot be determined, so that the production requirements of the existing oil field are obviously not met.
In order to solve the problem, pulse neutron oxygen activation and isotope well logging are generally used in the existing market so as to measure the water absorption condition of each stratum and each layer section, and at present, when necking and the like occur in a downhole tool string or a water distributor is positioned between the upper end and the lower end of the stratum, the water absorption condition of the upper, middle and lower sections of the stratum cannot be effectively and accurately measured. Meanwhile, along with the increasing attention of the country and the oil field to the safety and environmental protection problems, the supervision of equipment with radioactive instruments is stricter, the radioactive instruments such as pulse neutron oxygen activation and isotopes are gradually questioned by the market in the aspect of safety and environmental protection, and isotope logging is not used in some oil fields in China. In addition, the pulse neutron oxygen activation and isotope logging instrument is relatively precise, the manufacturing cost is high, the transportation and storage cost is high, the requirement on matched equipment is high, and the radiation generator is a wearing part and needs to be replaced periodically, so that the use cost is directly influenced, and the expenditure of the research and measurement expense of the oil field is increased. Moreover, the logging time of the two instruments is long, so that the logging production progress is influenced.
In summary, the existing instruments for measuring the water absorption profile of the water injection well have great defects in the aspects of safety, environmental protection, measurement accuracy and range, use cost and the like, are not beneficial to the purposes of cost reduction and efficiency improvement of the oil field, and are not beneficial to the production arrangement of the oil field.
Disclosure of Invention
An aspect of the embodiment of the application relates to a water injection well water absorption profile measuring device, which comprises a barrel body, the barrel body has set gradually along its axis direction: the connecting end is arranged at one end of the cylinder body and is used for connecting external equipment; the calculating part is arranged in the cylinder body and comprises a circuit and a calculating element, and the calculating element is electrically connected with the external equipment and is used for calculating and counting the measured data; the temperature testing part is arranged in the cylinder and used for measuring the temperature in the water injection well; the water flow testing part is arranged in the cylinder and used for measuring the water flow in the water injection well; the guide end is arranged at the other end of the cylinder body and is used for guiding the cylinder body to enter the water injection well; wherein, the calculation part, the temperature test part and the water flow test part are electrically connected.
In some embodiments, the water flow test part comprises: a sensor base mounted inside the cylinder; an ultrasonic sensor mounted on the sensor base for generating and receiving ultrasonic signals.
In some embodiments, the ultrasonic sensor comprises: a first ultrasonic sensor for transmitting the ultrasonic signal in a direction opposite to a water flow direction of the water injection well; the second ultrasonic sensor is used for transmitting the ultrasonic signal along the water flow direction of the water injection well; the first ultrasonic sensor and the second ultrasonic sensor are arranged at intervals along the axial direction of the cylinder body and are electrically connected.
In some embodiments, the cartridge further comprises a hollow tube disposed between the two sensor bases, the hollow tube having a through hole.
In some embodiments, the temperature test portion is a well temperature gauge comprising: the thermocouple comprises a hot end and a cold end, wherein the hot end extends out of the cylinder and is used for measuring the water temperature of the water injection well; and the temperature sensor is electrically connected with the cold end and used for processing the output of the thermocouple.
In some embodiments, the temperature sensor comprises: the signal conversion module is used for converting the output of the thermocouple into an electric signal; the composite amplification module is used for converting the electric signal into a voltage output signal; the voltage-frequency conversion module is used for adjusting the frequency of the voltage output signal; the shaping amplification module is used for amplifying the voltage output signal;
and the voltage stabilizing module is used for stabilizing the voltages of the composite amplifying module, the voltage-frequency conversion module and the shaping amplifying module.
Another aspect of embodiments of the present application relates to a water injection well water absorption profile measuring method, which is performed by the water injection well water absorption profile measuring apparatus of claims 1-6, the method comprising: acquiring the water absorption capacity of each water distributor in the water injection well; acquiring a well temperature curve based on the temperature of each layer of the water injection well; and determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the well temperature curve.
In some embodiments, said obtaining the water uptake of each water distributor in the water injection well comprises: acquiring first time information of a signal received by a first ultrasonic sensor and second time information of a signal received by a second ultrasonic sensor; calculating a difference between the first time information and the second time information; and calculating the water absorption capacity of the water distributor on the current layer in the water injection well based on the difference.
In some embodiments, obtaining a well temperature profile based on the temperatures of the layers of the water injection well further comprises: and acquiring the area deviation ratio of the well temperature curve based on the well temperature curve.
In some embodiments, the method further comprises:
and determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the area deviation ratio of the well temperature curve.
Drawings
The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:
FIG. 1 is a schematic diagram of a water injection well absorption profile measurement apparatus according to some embodiments of the present application;
FIG. 2 is a block diagram of a temperature sensor according to some embodiments of the present application;
FIG. 3 is an exemplary flow chart of a method of water injection well absorption profile measurement according to some embodiments of the present application;
FIG. 4 is an exemplary flow chart illustrating obtaining water absorption by each water distributor according to some embodiments of the present disclosure;
FIG. 5 is a graph of a difference-flow fit curve according to some embodiments of the present application;
FIG. 6 is a schematic illustration of a well temperature profile according to some embodiments of the present application.
Reference numerals
1-a connecting end; 2-a calculation section; 3-a temperature measuring part; 4-a cylinder body; 5-a sensing base; 6-a first ultrasonic sensor; 7-a through hole; 8-hollow pipe; 9-a second ultrasonic sensor; 10-a guiding end; 11-a water injection well; 12-multiple sections of the same formation; 13. a single layer section; 14-downhole packer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. It is understood that these exemplary embodiments are given solely to enable those skilled in the relevant art to better understand and implement the present application, and are not intended to limit the scope of the present application in any way. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". "plurality" means two or more. "at least one" means one or more than one. "first," "second," … …, and the like are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order.
FIG. 1 is a schematic diagram of a water injection well absorption profile measurement apparatus according to some embodiments of the present application.
An aspect of the embodiment of the application provides a water injection well profile of absorbing water measuring device, including barrel 4, barrel 4 has set gradually along its axis direction: the connecting end 1 is arranged at one end of the cylinder 4 and is used for connecting external equipment; the calculating part 2 is arranged inside the cylinder 4 and comprises a circuit and a calculating element, and the calculating element is electrically connected with the external equipment and is used for calculating and counting the measured data; a temperature measuring part 3 installed inside the cylinder 4 for measuring the temperature inside the water injection well 11; a water flow testing part which is arranged inside the cylinder body 4 and is used for measuring the water flow inside the water injection well 11; a guide end 10 installed at the other end of the cylinder 4 for guiding the cylinder 4 into the water injection well 11; wherein, the calculating part 2, the temperature testing part 3 and the water flow testing part are electrically connected.
In some embodiments, the connection end 1 may be provided with a power interface. The power cord of the external device can be plugged into the power interface to connect to the apparatus. It should be noted that the connecting end can be detachably mounted on the barrel 4, for example, by clamping, bonding, bolting, etc. Or may be non-removably attached to the barrel 4, for example, by welding, integral molding, or the like. The present specification does not limit the manner of mounting the connection end 1.
In some embodiments, the guiding end 10 may be a connecting member with a tapered structure, and the connecting manner with the cylinder 4 can refer to the connecting end 1, which is not described herein. Through such setting, leading end 10 can pass the oil reservoir in water injection well 11 well, conveniently guides barrel 4 to get into water injection well 11 and measures work.
In some embodiments, the calculating part 2 has a circuit and a calculating element mounted therein. The computing element refers to an element for computing and counting data. Such as a built-in PC terminal, computer, chip, etc. Wherein the computing element may transmit the computing data to an external device for subsequent analysis and storage.
In some embodiments, the temperature measurement section 3 is a well temperature gauge comprising: the thermocouple comprises a hot end and a cold end, wherein the hot end extends out of the cylinder body 4 and is used for measuring the water temperature of the water injection well; and the temperature sensor is electrically connected with the cold end and used for processing the output of the thermocouple. Specifically, the number of the thermocouples and the temperature sensors may be 2 to 6, and preferably 3. The hot end of the thermocouple extends out of the cylinder body, and the cold end of the thermocouple can be in contact with the insulating shell of the temperature sensor, so that the time for measuring temperature and transmitting signals is greatly shortened. When the inside difference in temperature of water injection well is great, the thermocouple can transmit output to temperature sensor, and temperature sensor can turn into the output of thermocouple and send electrical signal to external equipment analysis, storage. For more details of the temperature sensor, reference may be made to fig. 2 and its associated description, which are not repeated herein.
In some embodiments, the water flow test section comprises: a sensor base 5 installed inside the cylinder 4; and an ultrasonic sensor mounted on the sensor base 5 for generating and receiving an ultrasonic signal. Wherein, the ultrasonic sensor is provided with an ultrasonic probe (not shown in the figure), and the ultrasonic probe is used for transmitting and receiving ultrasonic signals.
In some embodiments, an ultrasonic sensor includes: a first ultrasonic sensor 6 for emitting the ultrasonic signal in a direction opposite to the water flow direction of the water injection well 11; the second ultrasonic sensor 9 is used for transmitting the ultrasonic signals along the water flow direction of the water injection well 11; the first ultrasonic sensor 6 and the second ultrasonic sensor 9 are arranged at intervals along the axial direction of the cylinder body and are electrically connected with each other. For more details of the first ultrasonic sensor 6 and the second ultrasonic sensor 9, reference may be made to fig. 4 and the related description thereof, which are not repeated herein.
In some embodiments, the cylinder 4 further comprises a hollow tube 8, the hollow tube 8 is disposed between the two sensor bases 5, and the hollow tube 8 is provided with a through hole 7. Through such structure setting, can make things convenient for rivers among the water injection well 11 to get into and be used for ultrasonic sensor to measure in the hollow tube 8.
FIG. 2 is a block diagram of a temperature sensor according to some embodiments of the present application.
As shown in fig. 2, the temperature sensor includes: the signal conversion module is used for converting the output of the thermocouple into an electric signal; the composite amplification module is used for converting the electric signal into a voltage output signal; the voltage-frequency conversion module is used for adjusting the frequency of the voltage output signal; the shaping amplification module is used for amplifying the voltage output signal; and the voltage stabilizing module is used for stabilizing the voltages of the composite amplifying module, the voltage-frequency conversion module and the shaping amplifying module.
Specifically, the thermocouple may be composed of two sets of temperature measuring elements, and the sensitive part at the hot end of the thermocouple may directly contact the well fluid in the water injection well 11. If the well temperature changes, the well temperature is immediately transmitted to the temperature measuring sensor, the coincidence amplification module of the temperature sensor can convert the change into an electric signal, and the temperature electric signal is amplified and combined to be converted into a voltage output signal of 10 mv/DEG C. The voltage output signal can be input into a cable or stored after passing through a voltage-frequency conversion module and a shaping amplification module. The response time of this process is extremely short, on the order of less than 0.5 seconds, so that the temperature conditions inside the cylinder 4 can be measured quickly.
FIG. 3 is a diagram illustrating an exemplary method for training a speech dialog coding model according to some embodiments of the application. As shown in fig. 3 and 6, the process 300 may include the following steps.
And 310, acquiring the water absorption capacity of each water distributor in the water injection well.
Because the layered water injection of the water injection well in the oil field is realized mainly by the combined action of the water distributor and the packer at the present stage, the water absorption of the stratum is quantitatively distributed. The ultrasonic time difference method is used for measuring the water flow distribution condition of the single-flow water distributor by the ultrasonic time difference method.
For more details on obtaining the water absorption capacity of each water distributor in the water injection well 11, reference may be made to fig. 4 and its related description, which are not described herein again.
And 320, acquiring a well temperature curve based on the temperature of each layer of the water injection well.
In some embodiments, the calculation portion 2 may perform a plurality of experimental calibration analyses to obtain a well temperature curve as shown in fig. 6 when performing the actual calibration. In some embodiments, the well temperature profile may be used for subsequent calculations and analysis of water uptake.
In some embodiments, step 320 further comprises: acquiring a well temperature curve area deviation ratio based on the well temperature curve; and determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the deviation ratio of the well temperature curve area.
Specifically, the well temperature curve may be analyzed, the deviation from the theoretical temperature is affected by the injection amount, and the area of the deviation is obtained by mathematical integration, so as to obtain the area ratio of each interval, and thus the distribution of the injected water in the injection well section, as shown in table 2:
TABLE 2 calibration results
And step 330, determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the well temperature curve.
In the oilfield water injection development process, because the temperature of injected water is generally lower than the temperature of a stratum, low-temperature water is continuously injected into the stratum, and the temperature of the stratum around a water injection well is inevitably reduced as a result. For the formation, the amount of water injected also has an effect on the formation temperature, i.e., the greater the amount of water injected into the formation, the greater its temperature change, and vice versa. Under normal conditions, the formation temperature is regularly and linearly increased along with the increase of the depth, so that the water absorption capacity of the formation can be reflected according to the temperature change in the measuring well, and the water absorption condition of each section of the formation can be obtained.
FIG. 4 is an exemplary flow chart illustrating obtaining water uptake for each water distributor according to some embodiments of the present disclosure. As shown in fig. 4 and 6, the process 400 may include the following steps.
In step 410, first time information of a signal received by the first ultrasonic sensor and second time information of a signal received by the second ultrasonic sensor are obtained. In some embodiments, the first time information and the second time information may be a specific length of time. E.g., 1 hour, 2 hours, 1 day, etc.
Specifically, install first ultrasonic sensor 6 and second ultrasonic sensor 9 on sensor base 5 along the axis direction interval of barrel 4, the first ultrasonic sensor 6 of upstream launches the ultrasonic wave downwards, and the second ultrasonic sensor 9 of low reaches launches the ultrasonic wave upwards, places sensor base 5 in the middle part of water injection well 11, and wherein, rivers direction is from the top down flow, and rivers can get into hollow tube 8 through-hole 7.
For example only, assume that the speed of sound of an ultrasonic wave in a water stream is c0The linear distance between the first ultrasonic sensor 6 and the second ultrasonic sensor 9 is L, the water flow velocity in the water injection well 11 is v, and the diameter of the water injection well 11 is D.
According to convention in this specification, the first time information may be expressed as:
according to convention in this specification, the second time information may be expressed as:
Continuing with the foregoing example, according to the convention in this specification, the difference between the first time information and the second time information may be expressed as:
wherein due to the speed of sound c0Much greater than the water velocity v, so equation (3) can be expressed as:
Continuing with the foregoing example, then according to equation (4), the water flow velocity v can be expressed as:
then, further according to equation (5), the water flow rate Q in the injection well can be expressed as:
Q≈v*π*(D/2)2 (6)
it should be noted that, according to the experimental simulation, the result of sampling the time difference for multiple times is shown in fig. 5 when the water flows are different, and it can be seen that the time difference of sampling for multiple times has a certain fluctuation reason of the time difference under the same water flow under the same fluctuation condition, mainly because the time measurement precision resolution of the flowmeter is picosecond level, the fluctuation of the measurement time can be caused by the vibration of the environment of the test device accessory, the instability of the water flow and other factors, and the error caused by the fluctuation of the time difference can be eliminated by sampling the time difference for multiple times and then performing weighted average processing; although the time difference of some sampling points has an overlapping phenomenon in the case of different water flow rates, the overall trend shows that the time difference is increased along with the increase of the water flow rate.
After a mathematical model is established to calibrate time difference and water flow (
Q: the flow rate of the water is controlled by the control unit,
mean time difference, a, b: fitting coefficient), the results are shown in fig. 5, the broken line is the test time difference and the actual water flow, and the straight line is the calibration result after the mathematical model is established for fitting.
The final calibration results are shown in the following table:
TABLE 1 calibration results
The application may bring beneficial effects including but not limited to: by adopting the technical scheme, the problem of threat of logging on safety and environmental protection can be effectively solved; the problem of inaccurate measurement between the upper end and the lower end of the stratum of the water distributor in the prior art is solved; the problem of long logging cycle is solved, and the logging cost and expense are reduced. The invention is developed by researching the underground water injection condition and combining the corresponding physical characteristics, has no radioactivity, safety, environmental protection, low maintenance cost and high measurement precision, can effectively, truly and accurately reflect the water absorption condition of each layer section of each stratum, and adjusts the water distribution technical scheme through quantitative analysis of measurement data, thereby realizing cost reduction and efficiency improvement of the oil field. It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this application are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Moreover, those skilled in the art will appreciate that aspects of the present application may be illustrated and described in terms of several patentable species or situations, including any new and useful combination of processes, machines, manufacture, or materials, or any new and useful improvement thereon. Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.
The computer storage medium may comprise a propagated data signal with the computer program code embodied therewith, for example, on baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, etc., or any suitable combination. A computer storage medium may be any computer-readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer storage medium may be propagated over any suitable medium, including radio, cable, fiber optic cable, RF, or the like, or any combination of the preceding.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
The entire contents of each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, are hereby incorporated by reference into this application. Except where the application is filed in a manner inconsistent or contrary to the present disclosure, and except where the claim is filed in its broadest scope (whether present or later appended to the application) as well. It is noted that the descriptions, definitions and/or use of terms in this application shall control if they are inconsistent or contrary to the statements and/or uses of the present application in the material attached to this application.
Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of the embodiments of the present application. Other variations are also possible within the scope of the present application. Thus, by way of example, and not limitation, alternative configurations of the embodiments of the present application can be viewed as being consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to only those embodiments explicitly described and depicted herein.
Claims (10)
1. The utility model provides a water injection well water absorption profile measuring device which characterized in that, includes the barrel, the barrel has set gradually along its axis direction:
the connecting end is arranged at one end of the cylinder body and is used for connecting external equipment;
the calculating part is arranged in the cylinder body and comprises a circuit and a calculating element, and the calculating element is electrically connected with the external equipment and is used for calculating and counting the measured data;
the temperature testing part is arranged in the cylinder and used for measuring the temperature in the water injection well;
the water flow testing part is arranged in the cylinder and used for measuring the water flow in the water injection well;
the guide end is arranged at the other end of the cylinder body and is used for guiding the cylinder body to enter the water injection well;
wherein, the calculation part, the temperature test part and the water flow test part are electrically connected.
2. The water injection well water absorption profile measuring device according to claim 1, wherein the water flow testing part comprises:
a sensor base mounted inside the cylinder;
an ultrasonic sensor mounted on the sensor base for generating and receiving ultrasonic signals.
3. The water injection well water intake profile measuring device of claim 2, wherein the ultrasonic sensor comprises:
a first ultrasonic sensor for transmitting the ultrasonic signal in a direction opposite to a water flow direction of the water injection well;
the second ultrasonic sensor is used for transmitting the ultrasonic signal along the water flow direction of the water injection well;
the first ultrasonic sensor and the second ultrasonic sensor are arranged at intervals along the axial direction of the cylinder body and are electrically connected.
4. The water injection well water absorption profile measuring device of claim 3, wherein the cartridge further comprises a hollow tube disposed between the two sensor bases, the hollow tube having a through hole disposed therein.
5. The water injection well water absorption profile measuring device of claim 1, wherein the temperature testing section is a well temperature gauge, the well temperature gauge comprising:
the thermocouple comprises a hot end and a cold end, wherein the hot end extends out of the cylinder and is used for measuring the water temperature of the water injection well;
and the temperature sensor is electrically connected with the cold end and used for processing the output of the thermocouple.
6. The water injection well water intake profile measuring device of claim 5, wherein the temperature sensor comprises:
the signal conversion module is used for converting the output of the thermocouple into an electric signal;
the composite amplification module is used for converting the electric signal into a voltage output signal;
the voltage-frequency conversion module is used for adjusting the frequency of the voltage output signal;
the shaping amplification module is used for amplifying the voltage output signal;
and the voltage stabilizing module is used for stabilizing the voltages of the composite amplifying module, the voltage-frequency conversion module and the shaping amplifying module.
7. A method of water injection well water absorption profile measurement performed by the water injection well water absorption profile measurement apparatus of claims 1-6, the method comprising:
acquiring the water absorption capacity of each water distributor in the water injection well;
acquiring a well temperature curve based on the temperature of each layer of the water injection well;
and determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the well temperature curve.
8. The method of claim 7, wherein the obtaining the water uptake of each water distributor in the water injection well comprises:
acquiring first time information of a signal received by a first ultrasonic sensor and second time information of a signal received by a second ultrasonic sensor;
calculating a difference between the first time information and the second time information;
and calculating the water absorption capacity of the water distributor on the current layer in the water injection well based on the difference.
9. The method of claim 7, wherein obtaining a well temperature profile based on the temperatures of the layers of the water injection well further comprises:
and acquiring the area deviation ratio of the well temperature curve based on the well temperature curve.
10. The method of claim 9, further comprising:
and determining the water absorption amount of each layer in the water injection well based on the water absorption amount of each water distributor and the area deviation ratio of the well temperature curve.
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