CN111188590A - Plugging integrated efficient water plugging pipe column and oil extraction method - Google Patents
Plugging integrated efficient water plugging pipe column and oil extraction method Download PDFInfo
- Publication number
- CN111188590A CN111188590A CN202010011035.0A CN202010011035A CN111188590A CN 111188590 A CN111188590 A CN 111188590A CN 202010011035 A CN202010011035 A CN 202010011035A CN 111188590 A CN111188590 A CN 111188590A
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- plugging
- oil
- pipe
- packer
- integrated
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/122—Multiple string packers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Pipe Accessories (AREA)
Abstract
The invention relates to the field of petroleum machinery, in particular to a plugging integrated efficient water plugging pipe column and an oil extraction method. The oil pipe can be put into the oil well, and the oil well contains vertical section and horizontal segment, and the string more than one article constitutes the shutoff tubular column on the oil pipe, and the scheme of shutoff tubular column afterwards is any one of following: A. plugging the root part into an integrated high-efficiency water plugging pipe column; B. the blocking toe part is integrated with a high-efficiency water blocking pipe column; C. the middle part of the plug is integrated with a high-efficiency water plugging pipe column. 1. The multifunctional valve seat is researched and designed, multiple functions such as an oil drain device and the like are integrated when the overpressure setting packer is used as an oil well pump fixing valve during production and a pipe column is lifted, and the multifunctional valve seat is connected with a Y241 packer and a telescopic compensator to form an integrated efficient water plugging pipe column.
Description
Technical Field
The invention relates to the field of petroleum machinery, in particular to a plugging integrated efficient water plugging pipe column and an oil extraction method.
Background
The horizontal well oil extraction is a difficult point in the oil extraction industry at present, and the difficulty lies in that because the water outlet position is uncertain, water can not be effectively blocked and extracted under various conditions.
Disclosure of Invention
The efficient water plugging tubular column with the integrated plugging function is characterized in that an oil pipe can be placed into an oil well, the oil well comprises a vertical section and a horizontal section, more than one object is strung on the oil pipe to form the plugging tubular column, and then the scheme of the plugging tubular column is any one of the following:
A. the integrated efficient water plugging pipe column comprises a plugging root, more than one object comprises an oil well pump 1 arranged from top to bottom, a Y241 packer 5 is connected below the oil well pump, the Y241 packer 5 can plug an oil well, a setting sliding sleeve 4 is arranged on the right side of the Y241 packer 5, and the setting sliding sleeve 4 comprises an oil inlet; the rightmost side of the oil pipe comprises a plug; the left side of the Y241 packer 5 is a water outlet position X which can pump up the oil on the right side through an oil inlet and an oil pumping pump;
B. the blocking toe integrated efficient water blocking pipe column comprises more than one object, wherein the more than one object comprises an oil well pump 1, a setting sliding sleeve 4 and a Y241 packer 5 which are arranged from top to bottom, the right side of the Y241 packer 5 is a water outlet position X, and the rightmost side of an oil pipe comprises a plug; the setting sliding sleeve 4 comprises an oil inlet; the right side of the Y241 packer 5 is a water outlet position X;
C. the integrated high-efficiency water plugging pipe column is used for plugging the middle part, and more than one object comprises an oil well pump 1, a Y241 packer 5, a Y341 packer 8 and a setting sliding sleeve 4 which are arranged from top to bottom; the setting sliding sleeve 4 comprises an oil inlet; the rightmost side of the oil pipe comprises a plug; the water outlet position is between the Y241 packer 5 and the Y341 packer 8.
The technical scheme is that a multifunctional valve seat valve group is connected below an oil well pump 1 of the plugging pipe column, the middle of the multifunctional valve seat valve group comprises a valve seat, the side of the valve seat comprises a valve ball, the side of the valve ball comprises a spring claw 11, and the valve ball comprises a steel ball.
The invention further adopts the technical scheme that an oil drain oil passing pressure relief valve (10) is arranged on the multifunctional valve seat valve group.
The further technical scheme of the invention is that a compensator 3 is connected on the pipeline of the plugging pipe column, and the compensator 3 is a telescopic compensator which can compensate the length of the oil pipe.
The invention further adopts the technical scheme that the compensator (3) is a corrugated pipe.
The invention further adopts the technical scheme that the pipeline of the plugging pipe column comprises a screen pipe which is arranged on the right side.
The invention has the further technical scheme that the setting sliding sleeve 4 comprises an oil pipe tee 401, and the right side of the oil pipe tee 401 comprises a setting ball 402; the sliding sleeve 405 side is against the setting ball 402, the sliding sleeve 405 edge contains the sealing ring 403, the shear pin 404 passes through the outer shell and the sliding sleeve 405, and the outer shell side contains the connecting screw thread 406.
The invention further adopts the technical scheme that the multifunctional valve seat valve group has the following structure: the push rod 9 is connected on the oil pipe through the jump ring, when the bleeder 10 needs well workover construction, through throwing the sucker rod nipple joint, utilize sucker rod nipple joint gravity to cut bleeder hollow part, the outside of UNICOM oil pipe, unload oil pipe liquid, spring claw 11 passes through screw rod and jump ring connection and passes through threaded connection on push rod 9 in the upper end, when the sucker rod pipe cluster dead weight pushes down push rod 9 and connects, push rod 9, spring claw 11 move down simultaneously, after the sliding sleeve of setting sliding sleeve arrived the position, the jump ring is cut to gravity, release the setting ball, make the setting ball freely fall on the sliding sleeve, push rod 9, spring claw 11 drilling leave the fluid passage.
The method for plugging integrated high-efficiency water plugging oil production is characterized in that the method for plugging integrated high-efficiency water plugging oil production by using the plugging integrated high-efficiency water plugging pipe column of any one of claims 1 to 8 comprises the following steps,
setting a packer: after the packers are lowered to the designed blocking positions according to the connection sequence of the pipe columns, the oil pipe hanger is connected, the pipe columns are lifted by 0.2 meter, the setting shear nails of the packers with hydraulic pressure of 5-6MPa are added into the oil pipes and cut off, the setting shear nails belong to the setting of the packers, the packers are prevented from being opened accidentally in the process of lowering the well, setting is started, and after 18-20MPa of continuous pressurization, the setting is finished, and the pressure is stabilized for 2 minutes; then lowering the pipe column and tightening a wellhead bolt;
the method comprises the following steps that a plunger of the oil well pump and an oil well rod are lowered, after the plunger is lowered to a proper position, the hanging weight of a tubular column of the oil well pump is dropped to zero, namely, external force is not used by a hoisting machine any longer, the self weight of the tubular column of the oil well pump is dropped on a steel ball inside an overflowing pressure relief valve to push the tubular column of the oil well pump into a ball seat, and therefore the purpose is that the hanging weight of the tubular column of the oil well;
adjusting the distance of impact;
and starting production.
The invention further adopts the technical scheme that ① when oil drainage is needed when the pipe column is lifted, a short section of the sucker rod is thrown into the pipe column, and the overflow relief valve is opened to drain oil, namely, one short section of the sucker rod is thrown, the hollow bolt of the overflow relief valve is cut off by impact, and the overflow relief valve is opened to drain oil.
② the string is slowly lifted, the change of the weight indicator is observed, if the prompt of the weight indicator is 30-40KN higher than the original hanging weight, the weight indicator is reduced to the original hanging weight, and the tool is unsealed.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: 1. the multifunctional valve seat is researched and designed, multiple functions such as an oil drain device and the like are integrated when the overpressure setting packer is used as an oil well pump fixing valve during production and a pipe column is lifted, and the multifunctional valve seat is connected with a Y241 packer and a telescopic compensator to form an integrated efficient water plugging pipe column.
2. The whole set of pipe column only has 1 set of one-way slip packer, and the pipe column can be unsealed by directly lifting, so that the unsealing load is small, and the method is safe and reliable.
3. The water plugging and the production of one drill are completed, and the one drill is taken out to complete the deblocking and take out all tools, so that two drills are saved compared with a releasing pipe column, and the operation cost is greatly reduced.
Description of the drawings:
FIG. 1 is a schematic structural view of a multifunctional valve seat set;
FIG. 2 is an integrated high-efficiency water plugging pipe column with a plugging toe part;
FIG. 3 is an integrated water plugging pipe column for plugging a root;
FIG. 4 is an integrated water plugging pipe column in the middle of plugging;
FIG. 5 is a specific structure diagram of the inside of the setting sliding sleeve;
wherein: 1. an oil well pump; 2. a multifunctional valve seat valve group; 3. a compensator; 4. setting a sliding sleeve; 5, Y241 packer; 6. an internal passage 7, a three-way valve; 8, Y341 packer; 9. a push rod; 10. an oil drain device; 11. a spring finger; 12. a steel ball; an X water outlet position; 401, connecting an oil pipe tee; 402. setting a ball; 403. a seal ring; 404 shear pins; 405 a sliding sleeve; 406 are attached to the threads.
Detailed Description
The integrated efficient water plugging pipe column is formed by an oil well pump, a multifunctional valve seat valve group, a telescopic compensator, a Y241 horizontal well special water plugging packer, a setting sliding sleeve and the like, can be unsealed by directly lifting the pipe column, and is small in unsealing load, safe and reliable. The water outlet interval is sealed and isolated outside an oil pipe by adopting a one-way slip packer, fluid in the oil outlet interval enters the oil pipe through an oil pipe tee joint of a setting sliding sleeve, and the ground is extracted through an oil well pump, so that the integrated high-efficiency plugging of the horizontal well is realized. And when the pressure is increased, the Y341 packer seals the middle part.
Technical string type
1. Integrated water plugging pipe column for plugging heel
The oil well pump does not have a fixed valve and a multifunctional valve seat valve set overpressure discharge, the functions of a fixed valve seat, a telescopic compensator, an oil pipe, a Y241 packer one-way slip, a setting sliding sleeve, a sieve pipe and a plug multifunctional valve set are realized in production, two sealing valve balls of two valve seats are arranged, the oil well pump enters liquid through the two valve seats of the multifunctional valve set in production and can also pass through an oil drain device 10 overpressure discharge of the multifunctional valve set.
Integrated high-efficiency water plugging pipe column for plugging heel
2. Integrated water plugging pipe column with plugging toe part
The oil well pump, the multifunctional valve seat valve group, the telescopic compensator, the setting sliding sleeve and the Y241 packer.
For wells with high pressure, where the toe communicates with the injection well. The telescopic compensator can adopt a corrugated pipe.
3. Integrated water plugging pipe column for plugging middle part
The oil well pump, the multifunctional valve seat valve group, the telescopic compensator, the three-way valve, the Y241 packer, the Y341 packer, the setting sliding sleeve, the sieve tube and the plug.
Technical characteristics
Operation program
1. And connecting the pipe columns, and connecting corresponding matched tools according to the three pipe column structure diagrams.
2. Setting packer
① the packer is lowered to the designed blocking position according to the connection sequence of the pipe column, the pipe string is connected, the pipe column is lifted by 0.2 meter, a setting shear pin with the hydraulic pressure of 5-6MPa is added into the oil pipe to be cut off, setting is started, the setting is finished when the pressure is continuously increased by 18-20MPa, the pressure is stabilized for 2 minutes, and then the pipe column is lowered and tightened with a well head bolt.
② the plunger of the oil pump and the sucker rod are put down, the hanging weight of the sucker rod string is dropped to zero after the plunger is put down, the purpose is to push the steel ball in the overflow relief valve into the ball seat by the hanging weight of the sucker rod string, and the sucker rod string can be used as a one-way valve to carry out oil extraction operation.
③ distance-adjustable
3. And starting production.
4. Deblocking operation
① when the pipe string needs to be drained, a short section of sucker rod is thrown into the pipe string, and the overflow relief valve is opened to drain oil.
② the string is slowly lifted, the change of the weight indicator is observed, if the prompt of the weight indicator is 30-40KN higher than the original hanging weight, the weight indicator is reduced to the original hanging weight, and the tool is unsealed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (10)
1. The efficient water plugging tubular column with the integrated plugging function is characterized in that an oil pipe can be placed into an oil well, the oil well comprises a vertical section and a horizontal section, more than one object is strung on the oil pipe to form the plugging tubular column, and then the scheme of the plugging tubular column is any one of the following:
A. the integrated efficient water plugging pipe column comprises a plugging root, more than one object comprises an oil well pump (1) arranged from top to bottom, a Y241 packer (5) is connected below the oil well pump, the Y241 packer (5) can plug an oil well, a setting sliding sleeve (4) is arranged on the right side of the Y241 packer (5), and the setting sliding sleeve (4) comprises an oil inlet; the rightmost side of the oil pipe comprises a plug; the left side of the Y241 packer (5) is a water outlet position (X) which can pump up the oil on the right side through an oil inlet and an oil pump;
B. the blocking toe integrated efficient water blocking pipe column comprises more than one object, wherein the more than one object comprises an oil well pump (1), a setting sliding sleeve (4) and a Y241 packer (5) which are arranged from top to bottom, the right side of the Y241 packer (5) is a water outlet position (X), and the rightmost side of an oil pipe comprises a plug; the setting sliding sleeve (4) comprises an oil inlet; the right side of the Y241 packer (5) is a water outlet position (X);
C. the integrated high-efficiency water plugging pipe column is used for plugging the middle part, and more than one object comprises an oil well pump (1), a Y241 packer (5), a Y341 packer (8) and a setting sliding sleeve (4) which are arranged from top to bottom; the setting sliding sleeve (4) comprises an oil inlet; the rightmost side of the oil pipe comprises a plug; and a water outlet position is arranged between the Y241 packer (5) and the Y341 packer (8).
2. The plugging integrated efficient water plugging pipe column according to claim 1, wherein a multifunctional valve seat valve group is connected below an oil well pump (1) of the plugging pipe column, the middle of the multifunctional valve seat valve group comprises a valve seat, the side of the valve seat comprises a valve ball, the side of the valve ball comprises a spring claw (11), and the valve ball comprises a steel ball.
3. The plugging integrated efficient water plugging tubular column as claimed in claim 2, wherein a drain (oil relief valve) (10) is arranged on the multifunctional valve seat valve group.
4. The plugging integrated efficient water plugging string according to claim 1, wherein a compensator (3) is connected to a pipeline of the plugging string, and the compensator (3) is a telescopic compensator which can compensate the length of an oil pipe.
5. The plugging-integrated efficient water plugging pipe column as claimed in claim 4, wherein the compensator (3) is a corrugated pipe.
6. The plugging-integrated efficient water plugging pipe column according to claim 1, wherein the pipeline of the plugging pipe column comprises a screen pipe which is arranged on the right side.
7. The plugging integrated efficient water plugging tubular column according to claim 1, wherein the setting sliding sleeve (4) comprises an oil pipe tee (401), and the right side of the oil pipe tee (401) comprises a setting ball (402); the side of the sliding sleeve (405) is against the setting ball (402), the edge of the sliding sleeve (405) contains a sealing ring (403), the shear pin (404) passes through the outer shell and the sliding sleeve (405), and one side of the outer shell contains a connecting thread (406).
8. The plugging integrated efficient water plugging tubular column as claimed in claim 2, wherein the multifunctional valve seat valve group has the following structure: push rod (9) are connected and are passed through the jump ring and connect on oil pipe, bleeder (10) are when needs workover construction, through throwing the sucker rod nipple joint, utilize sucker rod nipple joint gravity to cut bleeder hollow part, the oil pipe outside of UNICOM, unload oil pipe liquid, spring claw (11) are connected through screw rod and jump ring and are passed through threaded connection on push rod (9) in the upper end, when sucker rod pipe cluster dead weight pushes down push rod (9) and connect, push rod (9), spring claw (11) move down simultaneously, after the sliding sleeve that sits the sliding sleeve arrived the position, gravity cuts the jump ring, release and sit the ball, make and sit the ball freely fall on the sliding sleeve, push rod (9), spring claw (11) drilling leaves the fluid passage.
9. The method for plugging integrated high-efficiency water plugging oil production is characterized in that the method for plugging integrated high-efficiency water plugging oil production by using the plugging integrated high-efficiency water plugging pipe column of any one of claims 1 to 8 comprises the following steps,
setting a packer: after the packers are lowered to the designed blocking positions according to the connection sequence of the pipe columns, the oil pipe hanger is connected, the pipe columns are lifted by 0.2 meter, the setting shear nails of the packers with hydraulic pressure of 5-6MPa are added into the oil pipes and cut off, the setting shear nails belong to the setting of the packers, the packers are prevented from being opened accidentally in the process of lowering the well, setting is started, and after 18-20MPa of continuous pressurization, the setting is finished, and the pressure is stabilized for 2 minutes; then lowering the pipe column and tightening a wellhead bolt;
the method comprises the following steps that a plunger of the oil well pump and an oil well rod are lowered, after the plunger is lowered to a proper position, the hanging weight of a tubular column of the oil well pump is dropped to zero, namely, external force is not used by a hoisting machine any longer, the self weight of the tubular column of the oil well pump is dropped on a steel ball inside an overflowing pressure relief valve to push the tubular column of the oil well pump into a ball seat, and therefore the purpose is that the hanging weight of the tubular column of the oil well;
adjusting the distance of impact;
and starting production.
10. The method for plugging integrated high efficiency water plugging oil recovery of claim 9, further comprising a method for deblocking,
① when oil drainage is needed, throwing a short sucker rod joint into the pipe column, opening the overflow relief valve to drain oil, namely throwing a short sucker rod joint, cutting off the hollow bolt of the overflow relief valve by impact, and opening the overflow relief valve to drain oil.
② the string is slowly lifted, the change of the weight indicator is observed, if the prompt of the weight indicator is 30-40KN higher than the original hanging weight, the weight indicator is reduced to the original hanging weight, and the tool is unsealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011035.0A CN111188590A (en) | 2020-01-06 | 2020-01-06 | Plugging integrated efficient water plugging pipe column and oil extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011035.0A CN111188590A (en) | 2020-01-06 | 2020-01-06 | Plugging integrated efficient water plugging pipe column and oil extraction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188590A true CN111188590A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010011035.0A Pending CN111188590A (en) | 2020-01-06 | 2020-01-06 | Plugging integrated efficient water plugging pipe column and oil extraction method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111188590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855098A (en) * | 2021-02-19 | 2021-05-28 | 大庆市天德忠石油科技有限公司 | Water plugging pipe column |
| CN113586017A (en) * | 2021-08-31 | 2021-11-02 | 中国石油天然气股份有限公司 | Perforating and sand-preventing integrated pipe column suitable for volcanic reservoir and using method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855098A (en) * | 2021-02-19 | 2021-05-28 | 大庆市天德忠石油科技有限公司 | Water plugging pipe column |
| CN113586017A (en) * | 2021-08-31 | 2021-11-02 | 中国石油天然气股份有限公司 | Perforating and sand-preventing integrated pipe column suitable for volcanic reservoir and using method |
| CN113586017B (en) * | 2021-08-31 | 2023-05-16 | 中国石油天然气股份有限公司 | Integrated pipe column suitable for perforation and sand prevention of volcanic reservoir and use method |
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Application publication date: 20200522 |