CN215927324U - Horizontal well pumping soluble bridge plug and perforation combined construction process detection device - Google Patents
Horizontal well pumping soluble bridge plug and perforation combined construction process detection device Download PDFInfo
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- CN215927324U CN215927324U CN202121517196.3U CN202121517196U CN215927324U CN 215927324 U CN215927324 U CN 215927324U CN 202121517196 U CN202121517196 U CN 202121517196U CN 215927324 U CN215927324 U CN 215927324U
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Abstract
The utility model discloses a detection device for a horizontal well pumping soluble bridge plug perforation combined construction process and a soluble bridge plug, and belongs to the technical field of oil and gas exploitation. The technical problem that underground temperature and pressure data cannot be obtained in the horizontal well plug feeding and perforating combined operation process in the prior art is solved. The detection device comprises a detector arranged on a bridge plug, wherein the bridge plug comprises a downhole holding part and a well outlet part, the detector is arranged on the well outlet part, and the detector is used for measuring the temperature and the pressure in the oil and gas well and storing the measured data or sending the measured data to a display device outside the oil and gas well in a wireless signal mode for analysis and display. The utility model is used for measuring the temperature and the pressure in the oil-gas well, can realize continuous acquisition and monitoring of temperature and pressure signals by one-trip pipe column, and can evaluate the perforation quality through pressure fluctuation.
Description
Technical Field
The utility model belongs to the technical field of oil and gas exploitation, and particularly relates to a horizontal well pumping soluble bridge plug perforation combined construction process detection device and a soluble bridge plug provided with the horizontal well pumping soluble bridge plug perforation combined construction process detection device.
Background
Bridge plugs are important plugging tools used in oil and gas extraction processes for staged fracturing of subterranean formations. The soluble bridge plug is a bridge plug which can be dissolved or degraded in an oil-gas well after a staged fracturing process measure, can plug a current oil-gas production zone in the oil-gas well so as to implement process measures on other oil-gas production zones, can automatically remove temporary plugging after the soluble bridge plug is dissolved or degraded after the process is finished, and can realize oil extraction and gas production operations of the oil-gas well after a flow channel between the production zone and a shaft is established.
Knowing the environment in an oil and gas well can effectively improve and ensure the reliability and safety of the oil and gas mining process, for example: knowing the environmental pressure and temperature under the oil and gas well helps to accurately judge the dissolving or degrading speed of the soluble bridge plug, thereby improving the reliability and timeliness of removing temporary plugging operation. For another example: the stratum temperature recovery rate after fracturing, the staged fracturing quality, the geothermal gradient information and the like can be accurately analyzed through continuous temperature monitoring of each stage of each well.
The applicant has found that the prior art has at least the following technical problems:
in the prior art, in the whole bridge plug perforation combined construction process of setting a bridge plug from a tool pipe string entering a well to a target layer position and taking the tool pipe string out of the well after the tool pipe string is lifted to a specified position for perforation, the whole underground temperature and pressure cannot be monitored and measured, and especially, the underground pressure fluctuation change generated when a pump node is started, the pressure and the temperature in the pumping process and a perforating bullet penetrates through a sleeve in the perforating process in the process of pumping a soluble bridge plug of a horizontal well cannot be monitored and measured.
Therefore, the technical problem that downhole temperature and pressure data cannot be obtained in the horizontal well plug feeding and perforating combined operation process in the prior art is solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a horizontal well pumping soluble bridge plug perforation combined construction process detection device and a soluble bridge plug provided with the horizontal well pumping soluble bridge plug perforation combined construction process detection device, and solves the technical problem that underground temperature and pressure data cannot be obtained in the horizontal well plug feeding and perforation combined construction process in the prior art. The embodiment of the utility model at least provides the following technical scheme:
the detection device for the horizontal well pumping soluble bridge plug perforation combined construction process is characterized by comprising a detector arranged on a bridge plug, wherein:
the bridge plug and the casing pipe can be arranged in an oil and gas well;
the bridge plug comprises a downhole bearing part and a well outlet part, the well outlet part is connected with an adapter of a bridge plug feeding tool, and a push cylinder of the bridge plug feeding tool, which is connected with the well outlet part and the adapter, can bear against the downhole bearing part to move in the setting process, so that the downhole bearing part is set in the sleeve;
the detector sets up go out on the well part, the detector is used for measuring temperature and pressure in the oil gas well and with the data storage that arrives wait to go out the well after the data storage send to the display device outside the oil gas well through the data line and analyze and show or send to the display device outside the oil gas well in the form of radio signal and analyze and show.
Optionally or preferably, the well-out portion is a central rod, and the detector is detachably connected with the central rod.
Alternatively or preferably, the detachable connection is a threaded connection, a detachable pinned connection or an interference fit connection (including a snap-fit, tight-fit connection). The manner of attachment of the detachable connection is not limited to a threaded connection, a removable pinned connection, or an interference fit connection.
Optionally or preferably, the end of the central rod close to the wellhead is provided with a connecting groove, and the end of the detector close to the well bottom is embedded in the connecting groove and is in threaded connection with the connecting groove.
Optionally or preferably, the downhole retention portion comprises a detachable support body, a slip assembly, a sealing assembly and a support cone body, the detachable support body is sleeved on the central rod, one end of the central rod close to the bottom of the well is connected with the detachable support body, the central rod drives the detachable support body to move upwards, so that the slip assembly expands and clamps the inner wall of the casing under the squeezing action of the support cone body and the detachable support body, and the sealing assembly seals a fluid channel between the outer wall of the support cone body and the inner wall of the casing to realize the setting of the downhole retention portion in the casing, and when the downhole retention portion is set in the casing, the central rod is disconnected with the detachable support body.
Optionally or preferably, the adaptor is tubular and the detector is cylindrical, a port of the adaptor near the bottom of the well is in threaded connection with an end of the well-out part near the wellhead, and the detector is located in a cavity enclosed by the adaptor and the well-out part.
Optionally or preferably, the surface of the well outlet portion is provided with axially extending conducting grooves through which fluid in the hydrocarbon well can enter the chamber around the detectors.
Optionally or preferably, the detector comprises a measurement function and a battery, the battery supplying power to the measurement function, the measurement function being for continuously measuring temperature and pressure data within the hydrocarbon well;
the measurement function part is also used for storing the data, and the stored data can be transmitted to display equipment outside the oil and gas well for analysis and display through a data line after the detector goes out of the well along with the bridge plug plugging tool; or the measurement function part can transmit the data to a display device outside the oil and gas well in a wireless signal form through a wireless signal transceiver for analysis and display.
Alternatively or preferably, the detector comprises a housing, and a temperature sensor and a pressure sensor (the measurement function part comprises the temperature sensor and the pressure sensor) arranged in the housing, wherein a detection hole is arranged on the housing, and probes of the temperature sensor and the pressure sensor can continuously detect the temperature and the pressure of the outside through the detection hole.
The soluble bridge plug provided by the embodiment of the utility model is provided with the detection device for the horizontal well pumping soluble bridge plug perforation combined construction process provided by any technical scheme of the embodiment of the utility model.
Any one of the above technical solutions can produce at least the following technical effects:
the utility model provides a bridge plug, which is characterized in that a well outlet part of the bridge plug is provided with a detector for measuring the temperature and pressure in an oil-gas well, storing the measured data, sending the data to a display device outside the oil-gas well for analysis and display through a data line after the measured data is output from the well, or sending the data to the display device outside the oil-gas well for analysis and display in a wireless signal mode. In addition, the detector is arranged on the well outlet part of the bridge plug, so that the temperature and the pressure in the well can be continuously and durably sampled before the well outlet part is pulled out of the oil-gas well, and data information support is provided for safe and reliable operation and the design of the soluble bridge plug.
The detection device for the horizontal well pumping soluble bridge plug perforation combined construction process is arranged on a well outlet component of a soluble bridge plug conveying tool along with a bridge plug, is preferably arranged in a cavity of an adaptive joint, independently supplies power without cable signal connection, the detection device arranged on the well outlet component of the utility model can complement the defects of no pressure and temperature monitoring in the prior bridge plug connection process pipe string through continuously acquired underground temperature and pressure technical parameters, the material dissolution rate of the soluble bridge plug can be adjusted by comparing the downhole temperature, and the temperature resistance of the bridge plug rubber cylinder can also be adjusted by the temperature, so that the working quality effect of the bridge plug during staged fracturing can be greatly improved, and particularly, the solubility of the downhole soluble material can be more accurately controlled; and the stratum temperature recovery rate, the staged fracturing quality, the geothermal gradient information and the like after fracturing can be accurately analyzed through continuous temperature monitoring of each stage of each well. The collected pressure signals can monitor the pressure signals generated when the perforating bullet penetrates through the casing pipe during perforating, the perforating quality can be evaluated through data analysis, the technology does not need to be connected with an original tool string cable signal, a power supply battery is arranged, signals can be collected along with the entering of a bridge plug or other tools, the temperature and pressure signals can be continuously collected and monitored simultaneously by one string, and the perforating quality can be evaluated through pressure fluctuation.
Drawings
FIG. 1 is a schematic diagram of a soluble bridge plug provided with a horizontal well pumping soluble bridge plug perforation combined construction process detection device according to an embodiment of the utility model;
fig. 2 is a schematic cross-sectional view of A, B, C states before and after setting of a soluble bridge plug of a horizontal well pumping soluble bridge plug perforation combined operation construction process detection device provided by an embodiment of the present invention (a state is a state before setting, a state B is a state in which a well outlet portion with a detector is separated from a well lower reserved portion when setting, and a state C is a state after setting);
fig. 3 is a schematic diagram of a process of setting a soluble bridge plug of a horizontal well pumping soluble bridge plug perforation combined construction process detection device, wherein the soluble bridge plug is penetrated through a perforation tool, and a setting tool is matched in a casing which is already in a well (a slender structure adopts a broken-line drawing method);
FIG. 4 is an enlarged schematic view of portion D of FIG. 3;
in the figure: 1. a bridge plug; 11. a downhole retention portion; 12. a well outlet section; 120. a connecting groove; 121. a detachable support; 122. a slip assembly; 123. a seal assembly; 1231. a seal ring; 1232. a support ring; 124. supporting the vertebral body; 125. conducting the groove; 2. a detector; 3. a sleeve; 4. an adapter; 5. a push cylinder; 6. a perforating tool string; 8. setting a tool; 81. a setting tool transmission rod; 82. the outer cylinder of the force transmission plate is connected with the push cylinder; 83. the outer cylinder of the dowel plate is in threaded connection with the push cylinder; 84. a setting tool inner core (in threaded connection with the adapter); 9. a perforation location.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail with reference to fig. 1 to 4. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 to 4, the detection device for horizontal well pumping soluble bridge plug perforation combined construction process provided by the embodiment of the utility model comprises a detector 2 arranged on a bridge plug 1, wherein:
the bridge plug 1 and the casing 3 can be arranged in an oil-gas well;
the bridge plug 1 comprises a downhole bearing part 11 and a well outlet part 12 (or called as a non-downhole bearing part 11), the well outlet part 12 is connected with an adapter 4 of a plug feeding tool of the bridge plug 1, and a push cylinder of the plug feeding tool, which is connected with the well outlet part 12 and the adapter 4, can move against the downhole bearing part 11 in the setting process, so that the downhole bearing part is set in the casing 3;
the detector 2 is arranged on the well outlet part 12, and the detector 2 is used for measuring the temperature and pressure in the oil and gas well, storing the measured data, waiting for the well outlet, and sending the data to the display equipment outside the oil and gas well for analysis and display through a data line or sending the data to the display equipment outside the oil and gas well for analysis and display in a wireless signal mode.
The well outlet part 12 of the bridge plug 1 provided by the utility model is provided with the detector 2 which is used for measuring the temperature and pressure in the oil gas well, storing the measured data, sending the data to the display equipment outside the oil gas well for analysis and display through a data line after the measured data is discharged from the well, or sending the data to the display equipment outside the oil gas well for analysis and display in a wireless signal mode, so that the measurement of the temperature and pressure in the oil gas well can be realized. In addition, the placement of the detector 2 on the well exit portion 12 of the bridge plug 1 allows for continuous sampling of downhole temperature and pressure for a long period of time before the well exit portion 12 is pulled out of the well, thereby providing data information support for safe and reliable operation and design of the soluble bridge plug 1.
In an alternative embodiment, the well outlet portion 12 is a central rod to which the detector 2 is removably attached. The installation space of the central rod is sufficient, and the detector 2 is convenient to disassemble, assemble and maintain by adopting a detachable connection mode.
As an alternative embodiment, the detachable connection is a threaded connection, a detachable pinned connection, or an interference fit connection (including a snap-fit, tight-fit connection). The threaded connection has the advantages of compact structure and reliable connection. The manner of attachment of the detachable connection is not limited to a threaded connection, a removable pinned connection, or an interference fit connection.
As an alternative embodiment, the end of the center rod near the wellhead is provided with a connection groove 120, and the end of the detector 2 near the bottom of the well is embedded in the connection groove 120 and is connected with the connection groove 120 by screw thread, detachable pin connection or interference fit. The structure has the advantages of compact structure and convenient assembly.
As an alternative embodiment, the downhole dwelling 11 comprises a detachable support 121, a slip assembly 122, a sealing assembly 123 and a support cone 124, the central rod is connected to the detachable support 121 at an end near the bottom of the well, the central rod drives the detachable support 121 upwards to expand the slip assembly 122 and clamp the inner wall of the casing 3 under the squeezing action of the support cone 124 and the detachable support 121, and the sealing assembly 123 seals the fluid passage between the outer wall of the support cone 124 and the inner wall of the casing 3 to seat the downhole dwelling 11 in the casing 3, and when the downhole dwelling 11 is seated in the casing 3, the central rod is disconnected from the detachable support 121. The underground retaining part 11 is reliable in setting, good in sealing performance, compact in structure and low in material consumption. The seal assembly 123 preferably includes a seal ring 1231 and a support ring 1232, and the support ring 1232 supports the seal ring 1231 to prevent the seal ring 1231 from being deformed in the axial direction, thereby improving the sealing performance.
In an alternative embodiment, the adapter 4 is tubular, the detector 2 is cylindrical, a port of the adapter 4 close to the bottom of the well is in threaded connection with an end of the well outlet portion 12 close to the top of the well, and the detector 2 is located in a cavity formed by the adapter 4 and the well outlet portion 12. The chamber has a large installation space and the volume of the detector 2 is less restricted.
As an alternative embodiment, the surface of the well exit portion 12 is provided with axially extending lead-through recesses 125, through which the fluid in the hydrocarbon well can enter the environment of the in-chamber detector 2. This design can ensure the accuracy of the data detected by the detector 2.
As an alternative embodiment, the detector 2 comprises a measurement function and a battery, the battery can be an accumulator which supplies power for the measurement function, the measurement function is used for continuously measuring the temperature and pressure in the oil and gas well and storing data, and the stored data can be analyzed and displayed by a display device outside the oil and gas well through a data line after the detector 2 goes out of the well along with the bridge plug tool; or the measuring function part can be used for continuously measuring the temperature and the pressure in the oil and gas well, and transmitting the temperature and the pressure to a display device outside the oil and gas well in a wireless signal form through the wireless signal transmitting and receiving device for analysis and display. The detector 2 is more convenient to use without connecting a data line and a power line, has strong environmental adaptability, and can not generate faults caused by line damage.
As an alternative embodiment, the detector 2 includes a housing, and a temperature sensor and a pressure sensor (the measurement function portion includes a temperature sensor and a pressure sensor) disposed in the housing, and the housing is provided with a detection hole through which the probes of the temperature sensor and the pressure sensor can continuously detect the temperature and the pressure outside.
The detector 2 can continuously sample the temperature and pressure downhole at time points, such as: the detector 2 can detect the pressure fluctuation changes and effects when perforating (perforating charge penetrates the casing 3) or setting. The detector 2 may continuously sample downhole temperature and pressure at time points.
In oil and gas exploitation, a bridge plug perforation combined technology, referred to as bridge perforation combined technology for short, is used, the technology can realize one-time well descending clustering perforation and staged fracturing, and has the advantages of high construction efficiency, high construction speed and the like, a first graph in fig. 3 shows that a perforation tool string 6 and a bridge plug 1 shown in fig. 2 enter a well but are not in a setting state from top to bottom, a second graph shows that the bridge plug 1 enters the well and is in the setting state, and a third graph shows that the perforation tool string 6 is lifted and perforated after the bridge plug 1 is in the setting state.
In the technology, a detector 2 is arranged at a well outlet part of a bridge plug, the defects of no pressure and temperature monitoring in a conventional bridge plug combined process pipe string can be compensated through continuously acquired downhole temperature and pressure technical parameters, the dissolution rate of a material of a soluble bridge plug can be adjusted by comparing the downhole temperature, the temperature resistance of a bridge plug rubber barrel can also be adjusted through the temperature, the working quality effect of the bridge plug during staged fracturing can be greatly improved, and particularly the solubility of the downhole soluble material can be more accurately controlled; and the stratum temperature recovery rate, the staged fracturing quality, the geothermal gradient information and the like after fracturing can be accurately analyzed through continuous temperature monitoring of each stage of each well.
The collected pressure signals can monitor the pressure signals generated when the perforating bullet penetrates through the casing pipe during perforating, the perforating quality can be evaluated through data analysis, the technology does not need to be connected with an original tool string cable signal, a power supply battery is arranged, signals can be collected along with the entering of a bridge plug or other tools, the temperature and pressure signals can be continuously collected and monitored simultaneously by one string, and the perforating quality can be evaluated through pressure fluctuation.
The soluble bridge plug 1 provided by the embodiment of the utility model is provided with the underground measuring device for the bridge plug 1 which is provided by any technical scheme of the embodiment of the utility model and can be used for perforation quality detection. The measuring device can be a detection device for the horizontal well pumping soluble bridge plug perforation combined construction process, and the detection device for the soluble bridge plug perforation combined construction process can also be sent in a continuous oil pipe operation or other equivalent and similar modes. The soluble bridge plug 1 is provided with the underground measuring device for the bridge plug 1 which can be used for perforation quality detection, so that the functions of the underground measuring device can be increased, the dissolving and degrading time of the bridge plug 1 can be reasonably controlled according to data detected by the underground measuring device for the bridge plug 1, the perforation quality can be evaluated through detected pressure fluctuation, the mining process is reasonably arranged, and the safety and the reliability of mining operation are improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a horizontal well pumping soluble bridge plug perforation combination work progress detection device which characterized in that, including setting up the detector on the bridge plug, wherein:
the bridge plug and the casing pipe can be arranged in an oil and gas well;
the bridge plug comprises a downhole bearing part and a well outlet part, the well outlet part is connected with an adapter of a bridge plug feeding tool, the adapter is connected with the well outlet part in the setting process, and a push cylinder of the bridge plug feeding tool can abut against the downhole bearing part to move so that the downhole bearing part is set in the sleeve;
the detector sets up go out on the well part, the detector is used for measuring temperature and pressure in the oil gas well and with the data storage that arrives wait to go out the well after the data storage send to the display device outside the oil gas well through the data line and analyze and show or send to the display device outside the oil gas well in the form of radio signal and analyze and show.
2. The device for detecting the horizontal well pumping soluble bridge plug perforation combined construction process according to claim 1, wherein the well outlet part is a central rod, and the detector is detachably connected with the central rod.
3. The horizontal well pumping soluble bridge plug perforation combined operation construction process detection device according to claim 2, wherein the detachable connection is a threaded connection, a detachable pin connection or an interference fit connection.
4. The detection device for the horizontal well pumping soluble bridge plug perforation combined construction process according to claim 3, wherein a connecting groove is formed in one end, close to a wellhead, of the center rod, and one end, close to a well bottom, of the detector is embedded into the connecting groove and is in threaded connection, detachable pin connection or interference fit connection with the connecting groove.
5. The horizontal well pumping soluble bridge plug perforation combined operation construction process detection device according to claim 2, wherein the downhole bearing part comprises a detachable support body, a slip assembly, a sealing assembly and a support cone body, the detachable support body is sleeved on the central rod, one end of the central rod close to the bottom of the well is connected with the detachable support body, the central rod drives the detachable support body to move upwards, the slip assembly expands under the common extrusion action of the support cone body and the detachable support body and clamps the inner wall of the casing, the sealing assembly seals a fluid channel between the outer wall of the support cone body and the inner wall of the casing so as to realize that the downhole bearing part is seated in the casing, and when the downhole bearing part is seated in the casing, the central rod is disconnected with the detachable support body.
6. The horizontal well pumping soluble bridge plug perforation combined operation construction process detection device is characterized in that the adapter is tubular, the detector is columnar, a port of the adapter close to the bottom of a well is in threaded connection with the end portion of the well outlet portion close to the wellhead, and the detector is located in a cavity defined by the adapter and the well outlet portion.
7. The horizontal well pumping soluble bridge plug perforation combined construction process detection device as claimed in claim 6, wherein a conducting groove extending along the axial direction is formed in the surface of the well outlet portion, and fluid in the oil and gas well can enter the periphery of the detector in the cavity through the conducting groove.
8. The horizontal well pumping soluble bridge plug perforation combined operation construction process detection device according to claim 1, wherein the detector comprises a measurement function portion and a battery, the battery supplies power to the measurement function portion, and the measurement function portion is used for continuously measuring temperature and pressure data in the oil and gas well;
the measurement function part is also used for storing the data, and the stored data can be transmitted to display equipment outside the oil and gas well for analysis and display through a data line after the detector goes out of the well along with the bridge plug plugging tool; or the measurement function part can transmit the data to a display device outside the oil and gas well in a wireless signal form through a wireless signal transceiver for analysis and display.
9. The horizontal well pumping soluble bridge plug perforation combined operation construction process detection device is characterized by comprising a shell, and a temperature sensor and a pressure sensor which are arranged in the shell, wherein the shell is provided with a detection hole, and probes of the temperature sensor and the pressure sensor can continuously detect the external temperature and pressure through the detection hole.
10. A soluble bridge plug is characterized in that a horizontal well pumping soluble bridge plug perforation combined construction process detection device according to any one of claims 1 to 9 is arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121517196.3U CN215927324U (en) | 2021-07-05 | 2021-07-05 | Horizontal well pumping soluble bridge plug and perforation combined construction process detection device |
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| CN202121517196.3U CN215927324U (en) | 2021-07-05 | 2021-07-05 | Horizontal well pumping soluble bridge plug and perforation combined construction process detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230034797A1 (en) * | 2020-02-14 | 2023-02-02 | Chengdu Innox Technology Co., Ltd. | Dissolvable frac plug adapter, method for measuring dynamic downhole temperature, and method for fabricating dissolvable frac plug |
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2021
- 2021-07-05 CN CN202121517196.3U patent/CN215927324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230034797A1 (en) * | 2020-02-14 | 2023-02-02 | Chengdu Innox Technology Co., Ltd. | Dissolvable frac plug adapter, method for measuring dynamic downhole temperature, and method for fabricating dissolvable frac plug |
| US11608705B2 (en) * | 2020-02-14 | 2023-03-21 | Chengdu Innox Technology Co., Ltd. | Dissolvable frac plug adapter, method for measuring dynamic downhole temperature, and method for fabricating dissolvable frac plug |
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