CN220059516U - Multipurpose drainage gas production intelligent flexible robot - Google Patents
Multipurpose drainage gas production intelligent flexible robot Download PDFInfo
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- CN220059516U CN220059516U CN202320009228.1U CN202320009228U CN220059516U CN 220059516 U CN220059516 U CN 220059516U CN 202320009228 U CN202320009228 U CN 202320009228U CN 220059516 U CN220059516 U CN 220059516U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 37
- 239000012530 fluid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002343 natural gas well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008672 reprogramming Effects 0.000 description 1
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Abstract
The utility model discloses a multipurpose intelligent flexible robot for draining and collecting gas, which sequentially comprises a buffer head, a water inlet window, a central flow channel, a variable-diameter gas storage packer, a water outlet window, a driving cabin, a control cabin, a sensor, a battery cabin and a fishing head from top to bottom to form a flexible robot assembly body; the lower end of the central runner hole is connected with the upper end of the water inlet window through threads, the upper end of the central runner hole is connected with the lower end of the water outlet window through threads, a variable-diameter gas storage packer is arranged outside the central runner, flexible connection is arranged between the upper end of the driving cabin and the lower end of the control cabin, the upper end of the control cabin is connected with the lower end of the sensor through threads, flexible connection is arranged between the upper end of the sensor and the lower end of the battery cabin, and the upper end of the battery cabin is connected with the lower end of the fishing head through threads; the utility model provides a drainage gas production device which can be applied to a vertical well and a horizontal well and is applicable to multiple complex oil and gas wells by utilizing a self-contained control circuit and an executing mechanism, and underground information and flow states in pipelines are collected and stored.
Description
Technical Field
The utility model belongs to the technical field of oil and gas well development and production, and particularly relates to a multipurpose drainage gas production intelligent flexible robot.
Background
In the field of oil and gas exploitation, 80% of natural gas wells have continuous reduction of gas well pressure in the middle and later stages of exploitation, stratum water gradually enters a well shaft, liquid accumulation in the well shaft is caused, and if liquid accumulation is excessive, even complete flooding and production stopping of the gas well are caused. In order to ensure the stable production of the natural gas well, drainage and gas production technology is required to be applied to timely discharge the bottom hole accumulated liquid.
The Chinese patent No. 104775806B discloses an underground walking robot for an oil and gas well, which mainly comprises a body, a battery compartment, a power compartment, a transmission compartment and a rotary valve. The technical scheme of the patent is characterized in that signals such as pressure, temperature or time are used as control sources, when a sensor senses a preset value, a control circuit is started, a transmission mechanism is connected, a valve of a central channel of a robot is opened or closed, when the valve is opened, oil and gas flow smoothly, the robot descends by utilizing self gravity, after the preset depth is reached, the control circuit is started again, a rotary valve is closed, the oil and gas flow generated at the bottom of an oil and gas well say that the robot pushes upwards, and the robot repeatedly walks in the way, but cannot be used for well structures of other complex forms except for a vertical well under the scheme.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the drainage gas production device which can be applied to a vertical well and a horizontal well and is also applicable to multiple complex oil-gas wells.
In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:
the multipurpose intelligent flexible robot for draining and collecting gas comprises a buffer head, a water inlet window, a central flow channel, a variable-diameter gas storage packer, a water outlet window, a driving cabin, a control cabin, a sensor, a battery cabin and a fishing head from top to bottom in sequence to form a flexible robot assembly; the device is characterized in that the lower end of the central runner hole is connected with the upper end of the water inlet window through threads, the upper end of the central runner hole is connected with the lower end of the water outlet window through threads, a variable-diameter gas storage packer is arranged outside the central runner, flexible connection is arranged between the upper end of the driving cabin and the lower end of the control cabin, the upper end of the control cabin is connected with the lower end of the sensor through threads, flexible connection is arranged between the upper end of the sensor and the lower end of the battery cabin, and the upper end of the battery cabin is connected with the lower end of the fishing head through threads.
The variable-diameter gas storage type packer is characterized in that a rubber cylinder is attached to the shell of the variable-diameter gas storage type packer, and the rubber cylinder radially expands or contracts under the action of internal and external pressure difference to play a role of a plunger.
And a control circuit is arranged in the control cabin.
The sensor is a vibrating wire type temperature and pressure sensor and is used for detecting temperature and pressure changes of the position of the robot in underground working hours.
The driving cabin is internally provided with an electric push rod and a valve, the valve is further connected with a water outlet window, the sensor transmits underground temperature and pressure signals to the control circuit, and the control circuit controls the electric push rod to work, so that the valve is opened and closed, the central runner hole is opened or closed, and the robot is guaranteed to lift and drain liquid in the vertical well, the inclined well and the horizontal well.
The flexible connection is a rubber tube joint at two ends and a high-pressure rubber tube in the middle, the rubber tube is connected with the rubber tube joint through buckling and pressing, and the rubber tube joint is connected with the rest part through threaded connection; the threaded connection is taper pipe threaded connection, and the taper pipe threads have self-tightening effect when in threaded fit due to taper, so that better tightness is achieved.
And a data memory is also arranged in the control cabin and is connected with the control circuit.
The working principle of the utility model is as follows:
according to the multipurpose drainage gas production intelligent flexible robot, the variable-diameter gas storage type packer is utilized to have the characteristics of variable diameter and self-pressurization, and when the robot moves downwards in a pipeline, the real-time position of the robot underground can be captured through a sensor, and the start and stop of a central runner switch valve can be controlled; when the valve is started, the central flow passage of the robot is closed, high-pressure fluid is accumulated in the rubber cylinder of the packer, and high-speed fluid passes through a gap between the rubber cylinder and the inside of the pipeline to form a low-pressure area; under the action of pressure difference, the packer rubber is contacted with the pipeline to eliminate the gap and prevent the liquid from flowing back to the bottom of the well. Under the continuous action of reservoir pressure, the robot overcomes the contact friction force, the robot and the weight of liquid, and the purpose of drainage and gas production is achieved.
The beneficial effects of the utility model are as follows:
the multipurpose drainage gas production intelligent flexible robot is characterized in that the upper end of a driving cabin and the lower end of a sensor are flexibly connected, the upper end of the sensor is flexibly connected with the lower end of a battery cabin, and further, the flexible connection can generate elastic deformation under the action of a certain load, and further, the flexible robot can realize C-shaped bending to a certain extent, so that the drainage gas production intelligent flexible robot can be self-adaptive to drainage gas production of vertical wells, inclined wells and horizontal wells;
according to the multipurpose intelligent flexible robot for draining and collecting gas, the threaded connection adopted by the important structure of the body of the robot is taper pipe threaded connection, so that the sealing performance of the robot in a high-temperature and high-pressure environment can be effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the general structure of a multipurpose intelligent flexible robot for drainage and gas production;
FIG. 2 is a schematic view of upper flexible bending (multiple orientations may be implemented);
FIG. 3 is a schematic view of a lower flexible bend (multiple orientations may be implemented);
FIG. 4 is a schematic view of a cone threaded connection;
FIG. 5 is a block diagram of a control section;
FIG. 6 is a block diagram of a flow of plug drainage gas production;
1, a buffer head; 2. a water inlet window; 3. a central flow passage; 4. reducing gas storage type packer; 5. a water outlet window; 6. a drive cabin; 7. a control cabin; 8. a sensor; 9. a battery compartment; 10. and (5) fishing the head.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The utility model is described in further detail below with reference to the accompanying drawings:
the utility model discloses a multipurpose intelligent flexible robot for draining and collecting gas (hereinafter referred to as a robot for short), which comprises a buffer head (1), a water inlet window (2), a central runner (3), a variable-diameter gas storage packer (4), a water outlet window (5), a driving cabin (6), a control cabin (7), a sensor (8), a battery cabin (9) and a fishing head (10) from bottom to top, and is characterized in that: the upper end of the buffer head (1) is connected with the lower end of the water inlet window (2) through welding, the lower end of the hole of the central flow passage (3) is connected with the upper end of the water inlet window (2) through threads, the upper end of the hole of the central flow passage (3) is connected with the lower end of the water outlet window (5) through threads, a variable-diameter gas storage packer (4) is arranged outside the central flow passage (3), flexible connection is arranged between the upper end of the driving cabin (6) and the lower end of the control cabin (7), the upper end of the control cabin (7) is connected with the lower end of the sensor (8) through threads, flexible connection is arranged between the upper end of the sensor (8) and the lower end of the battery cabin (9), and the upper end of the battery cabin (9) is connected with the lower end of the fishing head (10) through threads;
the control cabin (7) comprises a control system (701), wherein the control system (701) is mainly used for storing and processing collected data of the pressure, the temperature and the position of the well bore fluid in real time and transmitting the data to the ground control system in an electric signal mode, so that the gas production robot can be positioned in real time and the technological parameters can be intelligently adjusted.
The driving cabin (6) mainly comprises an electric push rod (601) and a valve (602), and after the control system (701) sends a closing instruction, the electric push rod (601) drives the transmission mechanism to move so as to block the central flow passage control valve (602), thereby closing the central flow passage switching valve (602).
The variable-diameter gas storage packer (4) has the characteristics of variable diameter and automatic pressurization, when the robot moves downwards in the oil pipe, the sensor (8) captures the real-time position of the robot in the oil pipe, furthermore, the sensor (8) obtains the pressure difference value of a unit distance, when the pressure difference value is equal to a set threshold value, the robot reaches a target drainage position, and the robot automatically closes the central flow passage valve (602) to start drainage; when the water outlet window (5) of the robot is closed, the inside of the variable-diameter gas storage packer rubber cylinder (401) is filled with fluid with zero flow velocity pressure, a tiny gap exists between the outer wall of the rubber cylinder (401) and the inner wall of the oil pipe, when high-speed fluid passes through the gap, a low-pressure area is generated between the rubber cylinder (401) and the wall of the oil pipe, the rubber cylinder (401) radially expands under the action of an inner pressure difference value and an outer pressure difference value, the rubber cylinder begins to cling to the wall of the oil pipe, the gap between the oil pipe variable-diameter gas storage packer rubber cylinder (401) and the wall of the oil pipe is eliminated, the liquid section at the upper end of the rubber cylinder (401) is blocked from slipping and flowing back to the bottom of the well, the plunger is played, and when a large amount of fluid load is accumulated inside the rubber cylinder (401), the generated axial thrust is larger than the friction resistance between the rubber cylinder and the inner wall of the oil pipe, the gravity of the robot and the gravity of the liquid section discharged by the robot.
The sensor (8) is a vibrating wire type temperature and pressure sensor, and can sense and collect fluid pressure and temperature data in real time to identify the condition of accumulated liquid in a shaft. Meanwhile, according to the temperature gradient curve, the real-time position and the motion condition of the robot in the well can be perceived in real time.
A battery pack (901) is arranged in the battery compartment (9); the battery pack (901) supplies power for the electric push rod (601), the control circuit (701) and the sensor (8).
The threaded connection adopted in the utility model is taper pipe threaded connection, the taper pipe threads enable the internal thread and the external thread to be tightly matched, the sealing performance of the non-taper threads is not achieved, and the sealing performance of the robot in the working process is effectively ensured.
The basic working principle flow diagram of the robot is shown in fig. 5, and the high-speed continuous mining function (60 points are acquired per minute) of the robot is utilized to provide information for the control system (701), so that the normal operation of the driving cabin (6) is ensured, the up-and-down walking is realized, and the accumulated liquid is ejected out of the ground.
And (3) downlink: the central flow channel is automatically opened, oil, gas and water are smooth, and the robot slowly descends by utilizing the dead weight;
and (3) uplink: the central runner (3) is controlled to be closed, meanwhile, the packer rubber (401) is pressurized to elastically deform, the packer rubber blocks the air flow and the water flow, the packer rubber contacts with the oil pipe wall to block the plunger, the robot is quickly accumulated and pressurized to push the robot upwards, after the robot reaches a wellhead, the robot automatically searches for pressure change, after reprogramming, the central runner is opened to descend again, the working fluid level is automatically tracked, quantitative drainage is carried out, and the packer rubber is repeatedly circulated in a reciprocating manner, can continuously work underground, continuously discharges accumulated fluid, and is like a pacemaker on a gas well, and is used for the whole life.
Claims (6)
1. The utility model provides a multipurpose drainage gas production intelligent flexible robot, includes buffer head (1), window (2) that intakes, central runner (3), reducing gas storage formula packer (4), play water window (5), driving cabin (6), control cabin (7), sensor (8), battery compartment (9), catches head (10), its characterized in that: the upper end of the buffer head (1) is connected with the lower end of the water inlet window (2) through welding, the lower end of the hole of the central flow passage (3) is connected with the upper end of the water inlet window (2) through threads (11), the upper end of the hole of the central flow passage (3) is connected with the lower end of the water outlet window (5) through threads, a variable-diameter gas storage packer (4) is arranged outside the central flow passage (3), flexible connection is arranged between the upper end of the driving cabin (6) and the lower end of the control cabin (7), the upper end of the control cabin (7) is connected with the lower end of the sensor (8) through threads, flexible connection is arranged between the upper end of the sensor (8) and the lower end of the battery cabin (9), and the upper end of the battery cabin (9) is connected with the lower end of the fishing head (10) through threads; the shell of the variable-diameter gas storage packer (4) is provided with a rubber cylinder (401), and the rubber cylinder (401) radially expands or contracts under the action of internal and external pressure difference to play a role of a plunger; an electric push rod (601) and a valve (602) are arranged in the driving cabin (6); a control circuit (701) is arranged in the control cabin (7); the sensor (8) is a vibrating wire type temperature and pressure sensor; a battery pack (901) is arranged in the battery compartment (9); the battery pack (901) supplies power for the electric push rod (601), the control circuit (701) and the sensor (8).
2. The multipurpose drainage and gas production intelligent flexible robot of claim 1, wherein: the flexible connection is a rubber tube joint at two ends and a high-pressure rubber tube in the middle, the rubber tube is connected with the rubber tube joint through buckling and pressing, and the rubber tube joint is connected with the rest part through threaded connection.
3. The multipurpose drainage and gas production intelligent flexible robot of claim 1, wherein: the threaded connection is taper pipe threads, so that the sealing effect can be effectively achieved.
4. The multipurpose drainage and gas production intelligent flexible robot of claim 1, wherein: the control cabin (7) is also provided with a data memory, and the data memory is connected with the control circuit (701).
5. The drainage and gas production intelligent flexible robot of claim 1, wherein: a sensor (8) is arranged in the fishing head (10), and the sensor (8) is connected with a control circuit (701).
6. The multipurpose drainage and gas production intelligent flexible robot of claim 1, wherein: the valve (602) is connected with the water outlet window (5), the sensor (8) transmits underground temperature and pressure signals to the control circuit (701), the control circuit (701) controls the electric push rod (601) to work, so that the valve (602) is opened and closed, the central runner hole is opened or closed, and the robot is guaranteed to lift liquid and drain in the vertical well, the inclined well and the horizontal well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009228.1U CN220059516U (en) | 2023-01-04 | 2023-01-04 | Multipurpose drainage gas production intelligent flexible robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009228.1U CN220059516U (en) | 2023-01-04 | 2023-01-04 | Multipurpose drainage gas production intelligent flexible robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059516U true CN220059516U (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320009228.1U Active CN220059516U (en) | 2023-01-04 | 2023-01-04 | Multipurpose drainage gas production intelligent flexible robot |
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| Country | Link |
|---|---|
| CN (1) | CN220059516U (en) |
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2023
- 2023-01-04 CN CN202320009228.1U patent/CN220059516U/en active Active
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