CN109025918B - Layer-changing pumping device for stationary pipe column - Google Patents
Layer-changing pumping device for stationary pipe column Download PDFInfo
- Publication number
- CN109025918B CN109025918B CN201811077785.7A CN201811077785A CN109025918B CN 109025918 B CN109025918 B CN 109025918B CN 201811077785 A CN201811077785 A CN 201811077785A CN 109025918 B CN109025918 B CN 109025918B
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- track
- valve
- pipe
- oil
- sealing device
- Prior art date
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- 238000005086 pumping Methods 0.000 title abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000003129 oil well Substances 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 43
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 30
- 238000000605 extraction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- 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
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)
- Actuator (AREA)
- Check Valves (AREA)
Abstract
The utility model provides a layer swabbing device is traded to non-movable tubular column, includes urceolus, inserts sealing device, sucker rod, pump barrel, plunger, delivery valve, advance oil valve, switching-over cover, connecting pipe, track pipe, sliding seal device, interior UNICOM joint, outer UNICOM joint, stop valve, the fluid of oil well lower floor can get into the pump through the stop valve in, the UNICOM hole be closed by sliding seal device, the fluid of oil well upper strata can not get into, can only swabbing lower floor fluid, the inner slide key of switching-over cover is in the long orbital upper portion of track pipe this moment, when need trade the layer pumping, lifting up, lowering the sucker rod makes the inner slide key of switching-over cover be in the orbital upper portion of track pipe, sliding seal device can not reach the UNICOM hole department, the UNICOM hole be in the open state, the fluid of oil well upper strata can get into in the pump barrel, the lower part's of interior UNICOM the body of rod has left the stop valve this moment, the valve ball in the stop valve rises and seals with the disk seat cooperation, the fluid of oil well lower floor can not flow upward in the pump barrel.
Description
Technical Field
The invention belongs to oil extraction equipment in an oil field, and relates to a device arranged in a pumping well, in particular to a pumping device capable of changing layers of a fixed pipe column.
Background
The oil well is penetrated with a plurality of layers, and each oil layer needs to be separated for oil extraction due to interlayer difference so as to eliminate interlayer interference. The main current layered oil extraction method is to put a layered oil extraction pipe column, seal the layers which are not extracted, and communicate the layers which need to be extracted with a shaft by the layered oil extraction pipe column so as to realize layered oil extraction. Because the oil gas migration and judgment of the oil layer are inaccurate, and the injection and production scheme is adjusted, the production horizon sometimes needs to be changed. The current layered oil production pipe column is used for lifting all the layered oil production pipe columns out, and then the layered oil production pipe columns are put into the production pipe columns for producing other layers. The layer changing method needs to be applied to an operation team, the time for layer changing operation is long, the operation cost is high, and the production stopping time of an oil well is long. In order to solve the problems, scientific researchers develop a layer-changing technology of a static pipe column, wherein a layered switch is arranged on and off a layered pipe column, a rail is arranged on the switch, and pins on the rail are converted to be positioned on the rail through ground pressing, so that the layer-changing oil extraction of the static pipe column is realized. But the reliability of the layered switch in the layered oil production string is not high, and the layered switch is provided with a spring, a sliding sleeve and a sealing ring, so that the layered switch is opened or closed according to the difference of pressure and area difference. Because the pressure of each layer is not expected accurately, the elasticity of the spring is limited by the diameter of the shaft, the spring cannot be designed to be very large, and the problem that the spring cannot push the track pin to change direction often occurs, so that the layer replacement is failed; the layer changing method has the problem that sundries easily fall into the middle of a gap of the sliding sleeve, so that the sliding sleeve is blocked and cannot be switched, and the layer changing is failed; the layer replacing method has the further problem that the sealing ring is easy to damage due to the fact that the sealing ring is pressed through the pressure relief hole during switching, and the layer replacing is failed. The layer-changing technology has the advantages that after layer-changing failure, the multi-layer mixed mining occurs, oil extraction data can be changed, so that the ground can not judge whether layer-changing is successful, misjudgment is caused on a compiling and developing scheme, and great loss is caused by oilfield development.
Disclosure of Invention
The invention aims to design a pumping device for changing layers of a fixed pipe column, solve the problems existing in the prior art, eliminate the unreliable problems existing in the technology of oil extraction by changing layers of the fixed pipe column, reduce the operation process of oil extraction by changing layers, and improve the development benefit of oil fields.
The purpose of the invention is realized in the following way: comprises an outer cylinder, an inserting sealing device, an oil pumping rod, a pump cylinder, a plunger, an oil outlet valve, an oil inlet valve, a reversing sleeve, a connecting pipe, a track pipe, a sliding sealing device, an inner communicating joint, an outer communicating joint and a blocking valve, wherein the upper part of the blocking valve is connected with the lower part of the outer communicating joint, a communicating through hole is arranged on the outer communicating joint, the upper part of the outer communicating joint is connected with the lower part of the connecting pipe, the lower part of the outer cylinder is connected with the upper part of the connecting pipe, the lower part of the oil pumping rod is connected with the plunger, the oil outlet valve is arranged on the plunger, the oil pumping rod, the plunger and the oil outlet valve are put into the pump cylinder, an inner sliding key of the reversing sleeve is placed in a track of the track pipe, so that the reversing sleeve is sleeved on the track pipe, the track of the track pipe is provided with a long track and a short track, the inner sliding key of the reversing sleeve can be changed from the long track on the track pipe to the short track, so that the reversing sleeve can be positioned on the upper part or the lower part of the track pipe, the sealing device, the pump cylinder, the oil inlet valve, the track pipe, the sliding sealing device and the inner communicating joint are inserted into the outer cylinder after being connected in sequence, when the reversing sleeve is positioned on the long track of the track pipe, the sliding sealing device seals the communicating hole on the outer communicating joint, the lower rod body of the inner communicating joint penetrates through the valve seat on the cut-off valve, the valve ball in the cut-off valve is pressed away from the valve seat matched with the valve seat, the cut-off valve is in an open state, the inserted sealing device enters the outer cylinder to be matched and sealed with the outer wall of the reversing sleeve, the outer wall of the reversing sleeve is pressed into the inner wall of the connecting pipe, the reversing sleeve is temporarily fixed on the connecting pipe, the outer diameter of the plunger is larger than the inner diameter of the inserted sealing device, when the sucker rod is pulled, the plunger can hang the inserted sealing device to move upwards, the track pipe is enabled to move upwards, the inner sliding key of the reversing sleeve is positioned at the bottom of the track on the track pipe, the sucker rod is lowered, the inner sliding key of the reversing sleeve is replaced into the short track of the track pipe, the sliding sealing device is positioned above the communication hole on the communication joint, so that the communication hole is opened, the lower rod body of the inner communication joint leaves the valve ball in the stop valve, the stop valve is closed, and liquid flow cannot flow through the stop valve from bottom to top.
The beneficial effects of the invention are as follows: the oil in the lower layer of the oil well can enter the pump through the cut-off valve, the oil in the upper layer of the oil well can enter the pump through the communication hole on the communication joint, and the cut-off valve and the communication hole can be alternately opened and closed by lifting the sucker rod. When the layer-changing oil pumping is needed, the layer-changing oil pumping of the fixed pipe column can be realized only by lifting down the pumping rod.
Drawings
Fig. 1 is a block diagram (broken into two parts) of the present invention.
Fig. 2 is a surface developed view of the rail pipe.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the invention comprises an outer cylinder 1, an insert sealing device 2, a sucker rod 3, a pump cylinder 4, a plunger 5, an oil outlet valve 6, an oil inlet valve 7, a reversing sleeve 8, a connecting pipe 9, a track pipe 10, a sliding sealing device 12, an inner communication joint 13, an outer communication joint 14 and a stop valve 15, wherein the upper part of the stop valve 15 is connected with the lower part of the outer communication joint 14, a communication through hole 11 is arranged on the outer communication joint 14, the upper part of the outer communication joint 14 is connected with the lower part of the connecting pipe 9, the lower part of the outer cylinder 1 is connected with the upper part of the connecting pipe 9, the lower part of the sucker rod 3 is connected with the plunger 5, the oil outlet valve 6 (the oil outlet valve can be two and connected with the upper end and the lower end of the plunger 5) is arranged on the plunger 5, the sucker rod 3, the plunger 5 and the oil outlet valve 6 are placed in the pump cylinder 4, the inner sliding key of the reversing sleeve 8 is placed in the track of the track pipe 10, the reversing sleeve 8 is sleeved on the track pipe 10, the track of the track pipe 10 is provided with a long track 10-1 and a short track 10-2, as shown in figure 2, the inner sliding key of the reversing sleeve 8 can change the track from the long track 10-1 to the short track 10-2 on the track pipe 10, the reversing sleeve 8 can be positioned at the upper part or the lower part of the track pipe 10, the sealing device 2, the pump cylinder 4, the oil inlet valve 7, the track pipe 10, the sliding sealing device 12 and the inner communication joint 13 are sequentially connected and then are put into the outer cylinder 1, when the reversing sleeve 8 is positioned on the long track 10-1 of the track pipe 10, the sliding sealing device 12 seals the communication hole 11 on the outer communication joint 14, the lower rod body of the inner communication joint 13 passes through the valve seat on the cut-off valve 15, the valve ball in the cut-off valve 15 is pressed away from the valve seat matched with the valve seat, the cut-off valve 15 is positioned in an open state, the sealing device 2 is inserted into the inner cylinder 1 to be matched with the outer cylinder 1, the outer wall of the reversing sleeve 8 is pressed into the inner wall of the connecting pipe 9, so that the reversing sleeve 8 is temporarily fixed on the connecting pipe 9 (the contact surface between the reversing sleeve 8 and the connecting pipe 9 is in interference fit), the outer diameter of the plunger 5 is larger than the inner diameter of the insertion sealing device 2, when the sucker rod 3 is lifted, the plunger 5 can hang the insertion sealing device 2 to move upwards, the track pipe 10 is lifted, the inner sliding key of the reversing sleeve 8 is positioned at the bottom of the track on the track pipe 10, the sucker rod 3 is lowered, the inner sliding key of the reversing sleeve 8 is replaced into the short track 10-2 of the track pipe 10, the sliding sealing device 12 is positioned above the communication hole 11 on the communication joint 14, the communication hole 11 is opened, the lower rod body of the inner communication joint 13 is separated from the valve ball in the cut-off valve 15, the cut-off valve 15 is closed, and liquid flow cannot flow through the cut-off valve 15 from the lower side.
The lower rod of the internal communication joint 13 is separated from the stop valve 15, so that the force for lifting the valve ball on the stop valve 15 can be from the buoyancy of the spring or the valve ball, or other forces. Whichever lifting mode is adopted is within the scope of the present invention.
The lower part of the shut-off valve 15 is connected with a tail pipe, a packer is arranged on the tail pipe, the packer separates two oil layers, well fluid of an upper oil layer enters the pump through the annular space of the tail pipe and the sleeve through the communication hole 11, and well fluid of a lower oil layer flows upwards into the pump through the tail pipe.
The oil in the upper layer of the oil well can enter the pump through the communication hole 11 on the external communication joint 14, and the oil in the lower layer of the oil well can enter the pump through the stop valve 15. Fig. 1 is a diagram of the lower oil state of the pumping well, the communication hole 11 is closed by the sliding sealing device 12, the oil in the upper layer of the oil well cannot enter, and at this time, the inner sliding key of the reversing sleeve 8 is positioned at the upper part of the long track 10-1 of the track pipe 10. When the layer is required to be replaced, the sucker rod 3 is lifted up and lowered down, so that the inner sliding key of the reversing sleeve 8 is positioned at the upper part of the short track 10-2 of the track pipe 10, the sliding sealing device 12 cannot reach the position of the communication hole 11, the communication hole 11 is in an open state, and the oil in the upper layer of the oil well can enter the pump cylinder 4. At this time, the rod body at the lower part of the internal communication joint 13 leaves the stop valve 15, the valve ball in the stop valve 15 rises to be matched and sealed with the valve seat, and the oil at the lower layer of the oil well cannot flow into the pump cylinder 4 upwards. Therefore, the invention can realize the layer-changing oil pumping without moving the pipe column by lifting and putting the oil pumping rod.
The track grooves on the track pipe 10 are similar to the tracks on the Y211 packer, and other types of tracks, such as reversing tracks on ballpoint pens, can be used within the scope of the present invention as long as the effects of the present invention are achieved.
The screen pipe can be installed outside the external communication joint 14 to prevent sundries from entering the pump through the communication hole 11.
The contact surface between the reversing sleeve 8 and the connecting pipe 9 is in interference fit, so that the reversing sleeve 8 can be temporarily fixed, and when the lifting force is larger than the force generated by the interference fit, the reversing sleeve 8 can be pulled out from the connecting pipe 9 and then lifted.
Claims (1)
1. The utility model provides a layer swabbing device is traded to motionless tubular column, including urceolus (1), insert sealing device (2), sucker rod (3), pump cylinder (4), plunger (5), delivery valve (6), advance oil valve (7), switching-over cover (8), connecting pipe (9), track pipe (10), sliding seal device (12), interior communication joint (13), outer communication joint (14), stop valve (15), the upper portion of stop valve (15) is connected with the lower part of outer communication joint (14), there is communication hole (11) on outer communication joint (14), the upper portion of outer communication joint (14) is connected with the lower part of connecting pipe (9), the lower part of urceolus (1) is connected with the upper portion of connecting pipe (9), the lower part of sucker rod (3) is connected with plunger (5), install delivery valve (6) on plunger (5), sucker rod (3), plunger (5), delivery valve (6) are put into pump cylinder (4), the interior sliding key of switching-over cover (8) is placed in the track of track pipe (10), make track cover (8) suit have on track pipe (10) and track (10-10) are long track (10-short, the inner slide key of the reversing sleeve (8) can change the track from a long track (10-1) on the track pipe (10) to a short track (10-2), so that the reversing sleeve (8) can be positioned at the upper part or the lower part of the track pipe (10), the sealing device (2), the pump cylinder (4), the oil inlet valve (7), the track pipe (10), the sliding sealing device (12) and the inner communication joint (13) are sequentially connected and then are put into the outer cylinder (1), when the reversing sleeve (8) is positioned on the long track (10-1) of the track pipe (10), the sliding sealing device (12) seals the communication hole (11) on the outer communication joint (14), the lower rod body of the inner communication joint (13) passes through the valve seat on the cut-off valve (15), the valve ball in the cut-off valve (15) is pressed away from the valve seat matched with the valve ball, the cut-off valve (15) is in an open state, the insertion sealing device (2) enters the outer cylinder (1) to be matched and sealed with the outer cylinder, the outer wall of the reversing sleeve (8) is pressed into the inner wall of the connecting pipe (9), the reversing sleeve (8) is temporarily fixed on the connecting pipe (9), the outer diameter of the plunger (5) is larger than the inner diameter of the insertion sealing device (2), when the sucker rod (3) is lifted, the plunger (5) can hang the insertion sealing device (2) to move upwards, and the track pipe (10) is enabled to move upwards, the inner sliding key of the reversing sleeve (8) is positioned at the bottom of a track on the track pipe (10), the sucker rod (3) is placed down, the inner sliding key of the reversing sleeve (8) is replaced into a short track (10-2) of the track pipe (10), the sliding sealing device (12) is positioned above a communicating hole (11) on a communicating joint (14), the communicating hole (11) is opened, a lower rod body of the inner communicating joint (13) leaves a valve ball in a cut-off valve (15), the cut-off valve (15) is closed, liquid flow cannot flow from bottom to top through the cut-off valve (15), the lower part of the cut-off valve (15) is connected with a tail pipe, the packer separates two oil layers, well liquid of an upper oil layer enters the pump through the communicating hole (11) through the tail pipe and the annular space of a sleeve, when the communicating hole (11) is closed by the sliding sealing device (12), the well liquid of an upper layer cannot enter the oil well, the inner sliding sleeve (8) can not flow to the inner sliding key (10) is positioned at the position of the short track (10) where the inner sliding key (10) is required, the inner sliding key (10) is positioned at the position of the short track (10-10, the inner sliding key (10) is positioned at the position of the short track (10), the communication hole (11) is in an open state, oil on the upper layer of the oil well can enter the pump cylinder (4), at the moment, a rod body at the lower part of the inner communication joint (13) leaves the stop valve (15), a valve ball in the stop valve (15) rises to be matched with the valve seat for sealing, and oil on the lower layer of the oil well cannot flow into the pump cylinder (4) upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077785.7A CN109025918B (en) | 2018-09-16 | 2018-09-16 | Layer-changing pumping device for stationary pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077785.7A CN109025918B (en) | 2018-09-16 | 2018-09-16 | Layer-changing pumping device for stationary pipe column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109025918A CN109025918A (en) | 2018-12-18 |
| CN109025918B true CN109025918B (en) | 2024-04-05 |
Family
ID=64622433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811077785.7A Active CN109025918B (en) | 2018-09-16 | 2018-09-16 | Layer-changing pumping device for stationary pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109025918B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177574B (en) * | 2019-07-02 | 2023-12-01 | 中国石油化工股份有限公司 | Linkage type hydraulic layer-changing switch and linkage type layer-changing method |
| CN113503144B (en) * | 2021-06-29 | 2023-02-17 | 中国石油大学(华东) | Sliding sleeve rotating-upright post locking type shaft bottom safety valve |
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|---|---|---|---|---|
| CN2734995Y (en) * | 2004-09-01 | 2005-10-19 | 向志全 | Production assembly capable of recognizing oil layer hierarchically |
| RU2539053C1 (en) * | 2013-12-30 | 2015-01-10 | Андрей Сергеевич Казанцев | Unit for dual operation of several production facilities at one well (versions) and shutdown valve of revolving type |
| CN106014343A (en) * | 2016-05-16 | 2016-10-12 | 中国石油化工股份有限公司 | Separated injecting and separated mining thickened oil pump |
| CN106150447A (en) * | 2015-04-09 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of roofbolt controls payzone recognition methods |
| RU166990U1 (en) * | 2016-04-21 | 2016-12-20 | Публичное акционерное общество "Татнефть" им. В.Д. Шашина | DEVICE FOR SIMULTANEOUSLY SEPARATE OPERATION OF TWO LAYERS IN A WELL |
| CN205823249U (en) * | 2016-07-20 | 2016-12-21 | 山东成林石油工程技术有限公司 | Portable deciliter layering production controls device |
| CN208777971U (en) * | 2018-09-16 | 2019-04-23 | 东营市汇诚石油工程技术有限责任公司 | Fixed tubular column changes a layer pumping means |
-
2018
- 2018-09-16 CN CN201811077785.7A patent/CN109025918B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2734995Y (en) * | 2004-09-01 | 2005-10-19 | 向志全 | Production assembly capable of recognizing oil layer hierarchically |
| RU2539053C1 (en) * | 2013-12-30 | 2015-01-10 | Андрей Сергеевич Казанцев | Unit for dual operation of several production facilities at one well (versions) and shutdown valve of revolving type |
| CN106150447A (en) * | 2015-04-09 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of roofbolt controls payzone recognition methods |
| RU166990U1 (en) * | 2016-04-21 | 2016-12-20 | Публичное акционерное общество "Татнефть" им. В.Д. Шашина | DEVICE FOR SIMULTANEOUSLY SEPARATE OPERATION OF TWO LAYERS IN A WELL |
| CN106014343A (en) * | 2016-05-16 | 2016-10-12 | 中国石油化工股份有限公司 | Separated injecting and separated mining thickened oil pump |
| CN205823249U (en) * | 2016-07-20 | 2016-12-21 | 山东成林石油工程技术有限公司 | Portable deciliter layering production controls device |
| CN208777971U (en) * | 2018-09-16 | 2019-04-23 | 东营市汇诚石油工程技术有限责任公司 | Fixed tubular column changes a layer pumping means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109025918A (en) | 2018-12-18 |
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