CN117569778B - Projectile perforation and sand-carrying oil extraction integrated tubular column and process - Google Patents
Projectile perforation and sand-carrying oil extraction integrated tubular column and process Download PDFInfo
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- CN117569778B CN117569778B CN202410053983.9A CN202410053983A CN117569778B CN 117569778 B CN117569778 B CN 117569778B CN 202410053983 A CN202410053983 A CN 202410053983A CN 117569778 B CN117569778 B CN 117569778B
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- pipe
- oil extraction
- extraction pump
- reversing
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- 238000000605 extraction Methods 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 40
- 239000012530 fluid Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 28
- 238000009792 diffusion process Methods 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009964 serging Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
- F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of oil extraction, in particular to a shell perforation and sand-carrying oil extraction integrated pipe column and a process.
Description
Technical Field
The invention relates to the technical field of oil extraction engineering, in particular to a shell perforation and sand-carrying oil extraction integrated pipe column and a process.
Background
In the current oilfield construction, the monocular vertical well and the directional well are fewer in construction, and the platform cluster type directional well is more in construction, so that the construction has the advantages of reducing the occupied area of drilling construction, effectively developing some oil layers which are difficult to exploit due to the fact that the ground is shielded by obstacles, facilitating centralized oil transportation and unified management of later oil extraction of the oilfield, and having very high economic and social benefits.
However, the oil extraction operation cannot be performed in time after the drilling is finished in the earlier stage due to the layout mode of one multi-well, the exploitation aging is seriously affected, and in order to avoid the fact that the oil cannot be exploited in time due to space limitation, a device for synchronously performing oil extraction and drilling at different well positions of the cluster directional well is urgently needed.
Disclosure of Invention
Therefore, the invention aims to provide a shell perforation and sand-carrying oil extraction integrated tubular column and a process, which are used for solving the problem that a cluster directional well cannot perform operation oil extraction in time after well drilling is completed.
Based on the above object, the invention provides an integrated pipe column for perforating and sand-carrying oil extraction of a shell, which comprises a sleeve, wherein a first oil pipe is arranged in the sleeve, one end of the first oil pipe is connected with an oil extraction pump barrel, one end of the oil extraction pump barrel, which is far away from the first oil pipe, is connected with a second oil pipe, one end of the second oil pipe, which is far away from the oil extraction pump barrel, is connected with a perforating gun, a packer used for setting the inside of a sleeve pipe is sleeved on the second oil pipe, an oil extraction pump core is arranged in the oil extraction pump barrel, one end of the oil extraction pump core, which is far away from the first oil pipe, is provided with a reversing locking device, and the reversing locking device comprises:
the reversing pipe is fixedly arranged at one end of the oil extraction pump core, and a nozzle communicated with the oil extraction pump core is arranged on the reversing pipe;
the oil extraction pump seat is fixedly arranged in the oil extraction pump cylinder, the oil extraction pump seat is sleeved on the reversing pipe, the oil extraction pump seat is detachably connected with the reversing pipe, and at least one bridge structure for communicating the reversing pipe and the oil extraction pump cylinder is arranged on the oil extraction pump seat;
after the packer is set, a gate of the sleeve is closed, the first oil pipe is pressed until the perforating gun is excited to complete oil layer perforation, then the packer is unsealed, power fluid is pumped into the sleeve, so that the power fluid pushes stratum products into the oil extraction pump barrel, and the stratum products are fully mixed through the oil extraction pump core and enter the first oil pipe to complete sand-carrying oil extraction work.
Preferably, the oil extraction pump barrel comprises:
an upper joint, one end of which is fixedly connected with the first oil pipe;
one end of the upper sealing cylinder is fixedly connected with one end of the upper joint, which is far away from the first oil pipe, and the upper sealing cylinder is used for sealing one position of the oil extraction pump core;
one end of the connecting cylinder is fixedly connected with one end of the upper sealing cylinder, which is far away from the upper joint;
one end of the liquid inlet cylinder is fixedly connected with one end of the connecting cylinder, which is far away from the upper sealing cylinder;
and one end of the lower connector is fixedly connected with one end of the liquid inlet barrel, which is far away from the connecting barrel, and the other end of the lower connector is fixedly connected with the second oil pipe.
Preferably, the liquid inlet barrel comprises:
one end of the power fluid cylinder is fixedly connected with the connecting cylinder, and the power fluid cylinder is communicated with the inside of the reversing pipe through a bridge structure;
one end of the liquid producing cylinder is fixedly connected with one end of the power liquid cylinder, which is far away from the connecting cylinder, and the other end of the liquid producing cylinder is fixedly connected with the lower joint.
Preferably, the oil extraction pump core includes:
the fishing joint is provided with at least two liquid outlets on the outer wall;
one end of the buffer tube is fixedly connected with one end of the fishing joint, which is far away from the first oil pipe;
and one end of the converging part is fixedly connected with one end of the buffer tube, which is far away from the fishing joint, and the other end of the converging part is fixedly connected with one end of the reversing tube, and the converging part is communicated with the nozzle.
Preferably, a sand blocking rubber ring is clamped between the fishing joint and the buffer tube.
Preferably, the convergence portion includes:
one end of the diffusion extension tube is fixedly connected with the buffer tube;
one end of the diffuser is fixedly connected with one end of the diffusion extension tube, which is far away from the buffer tube;
the venturi tube is sleeved on the diffuser, the venturi tube is fixedly connected with the diffuser, a plurality of liquid-producing suction holes are formed in the position, close to the reversing tube, of the venturi tube, one end of each liquid-producing suction hole faces the inside of the diffuser, and the nozzle penetrates through the venturi tube and is communicated with the inside of the diffuser.
Preferably, the diffusion extension tube is provided with a centralizing ring.
Preferably, the oil extraction pump base includes:
the lower sealing cylinder is sleeved on the reversing pipe, and the gap bridge structure is arranged on the lower sealing cylinder;
one end of the reversing seat is fixedly connected with one end of the lower sealing cylinder, the reversing seat is fixedly connected with the inner wall of the oil extraction pump cylinder, and the reversing seat is detachably connected with the reversing pipe;
the spring is arranged in the reversing seat, and two ends of the spring respectively prop against the reversing seat and the reversing tube.
A process for perforating a shell and carrying sand to oil extraction integrated tubular column comprises the following steps:
a. the process pipe column structure sequentially comprises the following steps from bottom to top: perforating gun, second oil pipe, packer, oil extraction pump cylinder and second oil pipe are connected to wellhead;
b. after the device is lowered to the design depth, packer setting is carried out firstly, a sleeve gate is closed after the setting is finished, and the perforating gun is excited from the pressing of the first oil pipe to the completion of oil layer perforation;
c. throwing the oil extraction pump core into the first oil pipe, pumping the ground equipment to the oil extraction pump seat, and reversing and locking the reversing pipe of the oil extraction pump core and the reversing seat of the oil extraction pump seat after the ground equipment is in place, wherein the ground equipment has pressure rising display at the moment, so that the butt joint of the oil extraction pump core and the oil extraction pump seat is completed;
d. pumping power fluid from a sleeve into the oil extraction pump seat through a bridge structure at two sides of a power fluid cylinder, entering the oil extraction pump core through holes on a reversing pipe, enabling fluid flow to upwards spray out through a nozzle, enabling stratum products to enter a throat together, fully mixing in a diffuser, enabling the stratum products to upwards flow through a diffusion extension pipe, a buffer pipe and a fishing joint together, enabling the stratum products to enter a first oil pipe from a liquid outlet of the fishing joint until the stratum products are upwards sent to the ground, and realizing sand-carrying oil extraction work;
e. when the oil extraction pump core is damaged, the first oil pipe is pressurized again through ground equipment, so that after the reversing pipe of the oil extraction pump core and the reversing seat of the oil extraction pump seat are reversed again and are separated, the oil extraction pump core is separated from the oil extraction pump cylinder when the sleeve is pumped with liquid again, the liquid is continuously pumped until the oil extraction pump core is pushed upwards to a wellhead, and when the fishing joint at the uppermost end of the oil extraction pump core enters the fishing device to be locked, the pump can be stopped to take out the oil extraction pump core for replacement.
The invention has the beneficial effects that:
1. oil extraction and well drilling are synchronously carried out, and timeliness of oil extraction is effectively improved;
2. the perforation and oil extraction integration is realized, the operation procedures are reduced, and the operation cost is reduced;
3. the oil extraction pump core is replaced by the fixed pipe column, so that the operation procedures are saved, and the operation cost is reduced.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional plan view of an oil pump barrel according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional plan view of an oil recovery pump core according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional plan view of a power fluid cartridge according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of the flow path inside an oil pump barrel according to an embodiment of the present invention.
Marked in the figure as:
1. a sleeve; 2. a first oil pipe; 3. an oil extraction pump barrel; 4. a second oil pipe; 5. a perforating gun; 6. a packer; 7. a production pump core; 8. a reversing locking device; 9. a reversing tube; 10. a nozzle; 11. an upper joint; 12. an upper sealing cylinder; 13. a connecting cylinder; 14. a lower joint; 15. a power fluid cylinder; 16. a liquid producing cylinder; 17. catching the joint; 18. a liquid outlet; 19. a buffer tube; 20. a sand blocking rubber ring; 21. a diffusion extension tube; 22. a diffuser; 23. a throat; 24. a liquid-producing suction hole; 25. centralizing the ring; 26. a lower seal cylinder; 27. a reversing seat; 28. and (3) a spring.
Detailed Description
The present invention will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1 to 5, an integrated pipe column for perforating and sand-carrying oil extraction of a shell comprises a sleeve 1, a first oil pipe 2 is arranged in the sleeve, an oil extraction pump barrel 3 is connected to one end of the first oil pipe 2, a second oil pipe 4 is connected to one end of the oil extraction pump barrel 3, which is far away from the first oil pipe 2, a perforating gun 5 is connected to one end of the second oil pipe 4, a packer 6 used for sealing the sleeve 1 is sleeved on the second oil pipe 4, an oil extraction pump core 7 is arranged in the oil extraction pump barrel 3, a reversing locking device 8 is arranged at one end of the oil extraction pump core 7, which is far away from the first oil pipe 2, and the reversing locking device 8 comprises:
the reversing pipe 9 is fixedly arranged at one end of the oil extraction pump core 7, and a nozzle 10 communicated with the oil extraction pump core 7 is arranged on the reversing pipe 9;
the oil extraction pump seat is fixedly arranged in the oil extraction pump cylinder 3, the oil extraction pump seat is sleeved on the reversing pipe 9, the oil extraction pump seat is detachably connected with the reversing pipe 9, and at least one bridge passing structure for communicating the reversing pipe 9 and the oil extraction pump cylinder 3 is arranged on the oil extraction pump seat;
after the packer 6 is set, a gate of the casing 1 is closed, the first oil pipe 2 is pressed until the perforating gun 5 is excited to complete oil layer perforation, then the packer 6 is unsealed, power fluid is pumped into the casing 1, so that the power fluid pushes stratum products into the oil extraction pump barrel 3, and the stratum products are fully mixed through the oil extraction pump core 7 and enter the first oil pipe 2 together to complete sand-carrying oil extraction work.
For example, after the device is put down to the designed depth, the packer 6 is firstly set, the gate of the sleeve 1 is closed after the setting is finished, the first oil pipe 2 is pressed to activate the perforating gun 5 to finish oil layer perforation work, then the packer 6 is unsealed, power fluid is pumped from the sleeve 1, a part of power fluid pushes stratum products to enter the oil extraction pump barrel 3 through the perforating gun 5 and the second oil pipe 4, the stratum products directly enter the oil extraction pump core 7 through the oil extraction pump seat, the other part of power fluid enters the reversing pipe 9 through the bridge structure, enters the oil extraction pump core 7 through the nozzle 10, and fully mixed together enters the first oil pipe 2 through the oil extraction pump core 7 to rise to the ground so as to finish sand carrying oil extraction work, oil extraction and drilling synchronous operation are realized, the timeliness of oil extraction is effectively improved, and the problem that a cluster directional well cannot perform operation in time after the oil extraction is finished.
As an alternative embodiment, the oil production pump cylinder 3 includes:
an upper joint 11, one end of which is fixedly connected with the first oil pipe 2;
an upper sealing cylinder 12, one end of which is fixedly connected with one end of the upper joint 11, which is far away from the first oil pipe 2, and the upper sealing cylinder 12 is used for sealing one position of the oil extraction pump core 7;
a connecting cylinder 13, one end of which is fixedly connected with one end of the upper sealing cylinder 12 far away from the upper joint 11;
one end of the liquid inlet cylinder is fixedly connected with one end of the connecting cylinder 13, which is far away from the upper sealing cylinder 12;
and one end of the lower joint 14 is fixedly connected with one end of the liquid inlet barrel, which is far away from the connecting barrel 13, and the other end of the lower joint is fixedly connected with the second oil pipe 4.
As an alternative embodiment, the liquid inlet barrel comprises:
one end of the power fluid cylinder 15 is fixedly connected with the connecting cylinder 13, and the power fluid cylinder 15 is communicated with the inside of the reversing tube 9 through a bridge structure;
one end of the liquid producing cylinder 16 is fixedly connected with one end of the power liquid cylinder 15, which is far away from the connecting cylinder 13, and the other end of the liquid producing cylinder is fixedly connected with the lower joint 14.
For example, the power fluid cylinder 15 is communicated with the reversing pipe 9 through the bridge structure, so that stratum fluid is better separated from power fluid.
As an alternative embodiment, the oil production pump core 7 includes:
the fishing joint 17 is provided with at least two liquid outlets 18 on the outer wall;
a buffer tube 19, one end of which is fixedly connected with one end of the fishing joint 17, which is far away from the first oil pipe 2;
and one end of the converging part is fixedly connected with one end of the buffer tube 19 away from the fishing joint 17, the other end of the converging part is fixedly connected with one end of the reversing tube 9, and the converging part is communicated with the nozzle 10.
By way of example, by providing a catch fitting 17 on the buffer tube 19, it is easier to catch when replacing the entire production pump core 7.
As an alternative embodiment, a sand blocking rubber ring 20 is clamped between the fishing joint 17 and the buffer tube 19.
For example, the sand blocking rubber ring 20 forms a soft seal with the upper joint 11 to prevent sand from entering the annular interior of the production pump core 7 and the production pump seat.
As an alternative embodiment, the convergence part includes:
a diffusion extension tube 21, one end of which is fixedly connected to the buffer tube 19;
a diffuser 22, one end of which is fixedly connected with one end of the diffusion extension tube 21, which is far away from the buffer tube 19;
the venturi 23 is sleeved on the diffuser 22, the venturi 23 is fixedly connected with the diffuser 22, a plurality of liquid-producing suction holes 24 are formed in a position, close to the reversing pipe 9, of the venturi 23, one end of each liquid-producing suction hole 24 faces the inside of the diffuser 22, and the nozzle 10 penetrates through the venturi 23 and is communicated with the inside of the diffuser 22.
For example, a sealing ring is clamped on the diffusion extension tube 21 and is used for better matching with the upper sealing tube to finish the blocking of sand setting.
As an alternative embodiment, the diffusion extension tube 21 is provided with a centering ring 25.
For example, the centering ring 25 is used to reduce damage to the seal ring on the diffusion extension tube 21.
As an alternative embodiment, the oil extraction pump base includes:
the lower sealing cylinder 26 is sleeved on the reversing pipe 9, and the gap bridge structure is arranged on the lower sealing cylinder 26;
one end of the reversing seat 27 is fixedly connected with one end of the lower sealing cylinder 26, the reversing seat 27 is fixedly connected with the inner wall of the oil extraction pump cylinder 3, and the reversing seat 27 is detachably connected with the reversing pipe 9;
and the spring 28 is arranged in the reversing seat 27, and two ends of the spring 28 respectively prop against the reversing seat 27 and the reversing tube 9.
For example, the reversing cylinder is internally provided with a spring 28, so that the reversing cylinder can be reset in time after reversing, and the effectiveness of the next reversing is ensured.
A process for perforating a shell and carrying sand to oil extraction integrated tubular column comprises the following steps:
a. the process pipe column structure sequentially comprises the following steps from bottom to top: the perforating gun 5, the second oil pipe 4, the packer 6, the oil production pump cylinder 3 and the second oil pipe 4 are connected to a wellhead in series;
b. after the device is lowered to the designed depth, the packer 6 is set, the gate of the sleeve 1 is closed after the setting is finished, and the perforating gun 5 is excited from the first oil pipe 2 to complete the perforation of the oil layer;
c. throwing the oil extraction pump core 7 into the first oil pipe 2, pumping ground equipment to an oil extraction pump seat, and reversing and locking the reversing pipe 9 of the oil extraction pump core 7 and the reversing seat 27 of the oil extraction pump seat after the ground equipment is in place, wherein the ground equipment has pressure rising display at the moment, so that the butt joint of the oil extraction pump core 7 and the oil extraction pump seat is completed;
d. pumping power fluid from the sleeve 1 by the ground equipment, enabling the power fluid to enter the oil extraction pump seat through the bridge structures at two sides of the power fluid cylinder 15, then enter the oil extraction pump core 7 through the holes on the reversing pipe 9, enabling fluid flow to upwards spray out through the nozzle 10, enabling stratum products to enter the throat 23 together, fully mixing in the diffuser 22, enabling the stratum products to upwards flow through the diffusion extension pipe 21, the buffer pipe 19 and the fishing joint 17 together, enabling the stratum products to enter the first oil pipe 2 from the liquid outlet 18 of the fishing joint 17 until the stratum products upwards flow to the ground, and realizing sand-carrying oil extraction work;
e. when the oil extraction pump core 7 is damaged, the first oil pipe 2 is pressurized again through ground equipment, so that after the reversing pipe 9 of the oil extraction pump core 7 is reversed again and disconnected with the reversing seat 27 of the oil extraction pump seat, the oil extraction pump core 7 is separated from the oil extraction pump cylinder 3 when the sleeve 1 pumps liquid again, the liquid is continuously pumped until the oil extraction pump core 7 is pushed upwards to a wellhead, and when the uppermost fishing joint 17 of the oil extraction pump core 7 enters a fishing device to be locked, the pump can be stopped to take out the oil extraction pump core 7 for replacement.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the invention is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an shell perforation and sand-carrying oil recovery integration tubular column, includes sleeve pipe (1), its inside first oil pipe (2) that is equipped with, the one end of first oil pipe (2) is connected and is equipped with oil recovery pump barrel (3), oil recovery pump barrel (3) are kept away from the one end of first oil pipe (2) is connected and is equipped with second oil pipe (4), second oil pipe (4) are kept away from the one end of oil recovery pump barrel (3) is connected and is equipped with perforation gun (5), the cover is equipped with packer (6) that are used for seat cover pipe (1) inside on second oil pipe (4), a serial communication port, the inside of oil recovery pump barrel (3) is equipped with oil recovery pump core (7), oil recovery pump core (7) are kept away from the one end of first oil pipe (2) is equipped with switching-over locking device (8), switching-over locking device (8) include:
the reversing pipe (9) is fixedly arranged at one end of the oil extraction pump core (7), and a nozzle (10) communicated with the oil extraction pump core (7) is arranged on the reversing pipe (9);
the oil extraction pump seat is fixedly arranged in the oil extraction pump cylinder (3), the oil extraction pump seat is sleeved on the reversing pipe (9), the oil extraction pump seat is detachably connected with the reversing pipe (9), and at least one bridge passing structure for communicating the reversing pipe (9) and the oil extraction pump cylinder (3) is arranged on the oil extraction pump seat;
after the packer (6) is used for setting, a gate of the sleeve (1) is closed, the first oil pipe (2) is pressed until the perforating gun (5) is excited to complete oil layer perforation, then the packer (6) is unsealed, power fluid is pumped into the sleeve (1) to enable the power fluid to push stratum products to enter the oil extraction pump barrel (3), and the stratum products are fully mixed through the oil extraction pump core (7) to enter the first oil pipe (2) together to complete sand carrying oil extraction work;
the oil recovery pump core (7) comprises:
the outer wall of the fishing joint (17) is provided with at least two liquid outlets (18);
one end of the buffer tube (19) is fixedly connected with one end, far away from the first oil tube (2), of the fishing joint (17);
one end of the converging part is fixedly connected with one end of the buffer tube (19) far away from the fishing joint (17), the other end of the converging part is fixedly connected with one end of the reversing tube (9), and the converging part is communicated with the nozzle (10);
the convergence section includes:
a diffusion extension tube (21) one end of which is fixedly connected with the buffer tube (19);
one end of the diffuser (22) is fixedly connected with one end of the diffusion extension tube (21) far away from the buffer tube (19);
the throat pipe (23) is sleeved on the diffuser (22), the throat pipe (23) is fixedly connected with the diffuser (22), a plurality of liquid-producing suction holes (24) are formed in one position, close to the reversing pipe (9), of the throat pipe (23), one end of each liquid-producing suction hole (24) faces the inside of the diffuser (22), and the nozzle (10) penetrates through the throat pipe (23) and is communicated with the inside of the diffuser (22);
the oil extraction pump base includes:
the lower sealing cylinder (26) is sleeved on the reversing pipe (9), and the gap bridge structure is arranged on the lower sealing cylinder (26);
one end of the reversing seat (27) is fixedly connected with one end of the lower sealing cylinder (26), the reversing seat (27) is fixedly connected with the inner wall of the oil extraction pump cylinder (3), and the reversing seat (27) is detachably connected with the reversing pipe (9);
the spring (28) is arranged in the reversing seat (27), and two ends of the spring (28) are respectively propped against the reversing seat (27) and the reversing tube (9).
2. -a cannonball perforating and sand-carrying oil recovery integrated string according to claim 1, characterized in that said oil recovery pump cylinder (3) comprises:
an upper joint (11), one end of which is fixedly connected with the first oil pipe (2);
an upper sealing cylinder (12), one end of which is fixedly connected with one end of the upper joint (11) far away from the first oil pipe (2), wherein the upper sealing cylinder (12) is used for sealing one position of the oil extraction pump core (7);
one end of the connecting cylinder (13) is fixedly connected with one end of the upper sealing cylinder (12) far away from the upper joint (11);
one end of the liquid inlet cylinder is fixedly connected with one end of the connecting cylinder (13) far away from the upper sealing cylinder (12);
and one end of the lower joint (14) is fixedly connected with one end of the liquid inlet barrel, which is far away from the connecting barrel (13), and the other end of the lower joint is fixedly connected with the second oil pipe (4).
3. The integrated cannonball perforating and sand-carrying oil recovery string of claim 2, wherein said fluid intake cartridge comprises:
one end of the power liquid cylinder (15) is fixedly connected with the connecting cylinder (13), and the power liquid cylinder (15) is communicated with the inside of the reversing tube (9) through a bridge structure;
one end of the liquid producing cylinder (16) is fixedly connected with one end of the power liquid cylinder (15) far away from the connecting cylinder (13), and the other end of the liquid producing cylinder is fixedly connected with the lower joint (14).
4. The shell perforation and sand-carrying oil extraction integrated tubular column according to claim 1, wherein a sand-blocking rubber ring (20) is clamped between the fishing joint (17) and the buffer tube (19).
5. The shell perforation and sand-carrying oil extraction integrated tubular column according to claim 1, wherein a centralizing ring (25) is clamped on the diffusion extension tube (21).
6. A process for perforating a shell and sand-carrying oil recovery integrated string in accordance with any one of claims 1-5, comprising the steps of:
a. the pipe column sequentially comprises the following steps: the perforating gun (5), the second oil pipe (4), the packer (6), the oil extraction pump cylinder (3) and the first oil pipe (2) are connected to a wellhead in series;
b. after the device is lowered to the design depth, the packer (6) is set, the gate of the sleeve (1) is closed after the setting is finished, and the perforation of the oil layer is finished from the pressing of the first oil pipe (2) to the excitation of the perforation gun (5);
c. throwing the oil extraction pump core (7) into the first oil pipe (2), pumping ground equipment to an oil extraction pump seat, and reversing and locking a reversing pipe (9) of the oil extraction pump core (7) and a reversing seat (27) of the oil extraction pump seat after the ground equipment is in place, wherein the ground equipment has pressure rising display at the moment, so that the butt joint of the oil extraction pump core (7) and the oil extraction pump seat is completed;
d. pumping power fluid from the sleeve (1) by ground equipment, enabling the power fluid to enter the oil extraction pump seat through bridge structures at two sides of the power fluid cylinder (15), enabling the power fluid to enter the oil extraction pump seat through holes on the reversing pipe (9), enabling the fluid to upwards spray out through the nozzle (10), enabling stratum products to enter the throat (23) together, fully mixing the stratum products in the diffuser (22), enabling the stratum products to upwards pass through the diffusion extension pipe (21), the buffer pipe (19) and the fishing joint (17), enabling the stratum products to enter the first oil pipe (2) through a liquid outlet (18) of the fishing joint (17) until the stratum products are upwards conveyed to the ground, and achieving sand-carrying oil extraction work;
e. when the oil extraction pump core (7) is damaged, the first oil pipe (2) is pressurized again through ground equipment, so that after the reversing pipe (9) of the oil extraction pump core (7) is reversed again and disconnected with the reversing seat (27) of the oil extraction pump seat, the oil extraction pump core (7) is separated from the oil extraction pump cylinder (3) when the sleeve (1) pumps liquid again, the liquid is continuously pumped until the oil extraction pump core (7) is pushed upwards to a wellhead, and the oil extraction pump core (7) can be stopped to be taken out for replacement when the uppermost fishing joint (17) of the oil extraction pump core (7) enters the fishing device and is locked.
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| US7428923B2 (en) * | 2006-11-14 | 2008-09-30 | Ford Michael B | Top plunger adapter |
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| CN206554890U (en) * | 2017-02-15 | 2017-10-13 | 轮台县胜利无杆泵采油技术服务有限公司 | Pump oil extracting device is sprayed in the direct circulation of single tube post in sleeve pipe |
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| CN117569778A (en) | 2024-02-20 |
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