CN219974462U - Injection and production integrated switch of hollow oil pump - Google Patents
Injection and production integrated switch of hollow oil pump Download PDFInfo
- Publication number
- CN219974462U CN219974462U CN202320997759.6U CN202320997759U CN219974462U CN 219974462 U CN219974462 U CN 219974462U CN 202320997759 U CN202320997759 U CN 202320997759U CN 219974462 U CN219974462 U CN 219974462U
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- CN
- China
- Prior art keywords
- mandrel
- hanging
- joint
- dabber
- sealing
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- 238000004519 manufacturing process Methods 0.000 title description 13
- 238000002347 injection Methods 0.000 title description 7
- 239000007924 injection Substances 0.000 title description 7
- 239000003129 oil well Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 68
- 238000005086 pumping Methods 0.000 abstract description 17
- 239000011324 bead Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 31
- 238000010793 Steam injection (oil industry) Methods 0.000 description 16
- 238000000605 extraction Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model provides a hollow oil-well pump annotates and adopts integrated switch, has outer UNICOM's groove on the urceolus, and the lower part of sealed dabber has the blind hole, and the side of sealed dabber has interior UNICOM's groove, and upper seal suit is outside the upper portion of sealed dabber, and lower seal suit is outside the lower part of sealed dabber, and the lower part of hanging the dabber is installed at the lower part of sealed dabber, and the upper portion of hanging the dabber has outer circular bead, hangs the dabber and has an upper concave ring section, hangs the lower part of cover and has the annular, and the split ring is installed in the annular, hangs the cover suit outside the dabber, and the upper portion of piston joint is connected with the lower part of hanging the dabber, and the sealed dabber is packed into the urceolus, and is connected with the lower part of pumping rod joint, and the pump barrel joint is adorned outside the piston joint, and the lower part of pump barrel joint is connected with the outer upper portion of hollow oil-well pump, the piston joint lower part is connected with the upper end of hollow oil-well pump reciprocating motion part, does not need to examine pump operation in time to change and takes out the pump.
Description
Technical Field
The utility model relates to equipment for oil extraction in an oil field, in particular to a device matched with a hollow oil pump, and specifically relates to an injection and extraction integrated switch of the hollow oil pump.
Background
One method for exploiting thick oil in oil field is to inject high-temperature steam into oil layer to make thick oil to be pumped out by oil pump. The oil pump has an oil inlet valve, and the liquid flow can only flow upwards but not downwards. Therefore, when the oil layer is injected with steam, the oil layer can not be injected with the pump, but only the steam injection pipe column can be downwards injected, after the steam injection is finished, the steam injection pipe column is lifted out, and then the oil pumping pipe column with the oil pump is downwards injected. Because the pressure in the well is high after the steam injection is finished, the well mouth can not be opened to pull down the pipe column, and the operation can be performed only after the waiting for the blowout is finished and the pressure of the well mouth is reduced. For this reason, technicians have studied injection-production integrated oil-well pumps (in the field, the steam injection pipe column with the oil-well pump is generally called as injection-production integrated pipe column, and the oil-well pump with steam injection and oil pumping functions is called as injection-production integrated oil-well pump, simply referred to as injection-production integrated oil-well pump). By adopting the injection-production integrated oil pump, steam can be injected by a pump, and after the pressure of the wellhead of the blowout well is reduced after the steam injection is finished, the sucker rod can be rotated and pumped by being put down by the upper equipment. However, the existing injection-production integrated oil pump has two problems: on one hand, the rotary pumping can be performed only when the wellhead pressure is reduced after the steam injection is finished and the blowout is finished; on the other hand, the technology of the injection-production integrated oil well pump cannot be transplanted to the hollow oil well pump, so that the steam injection well of the lower hollow oil well pump needs to be put into the steam injection pipe column for steam injection, the wellhead pressure is reduced after the steam injection is finished and the steam injection pipe column is put out again, and then the lower hollow oil well pump is put into the hollow oil well pump, so that the operation procedures are more, the transfer and extraction time is long and the cost is high.
Disclosure of Invention
The utility model aims to provide an injection and production integrated switch of a hollow oil pump, so that when the switch is used for injecting steam with the hollow oil pump, the steam in an oil pipe on the pump can be injected into an oil layer, and the operation of opening a wellhead after the pressure is reduced is not needed, and power equipment is not needed, so that the rotation and extraction time is shortened.
The purpose of the utility model is realized in the following way: comprises a sucker rod joint, an outer cylinder, a sealing mandrel, an upper sealing element, a lower sealing element, a hanging mandrel, a hanging sleeve, a split ring, a pump cylinder joint and a piston joint, wherein the outer cylinder is provided with an outer communicating groove, the lower part of the sealing mandrel is provided with a blind hole, the side surface of the sealing mandrel is provided with an inner communicating groove, the inner communicating groove is communicated with the upper part of the blind hole, the upper sealing element is sleeved outside the upper part of the sealing mandrel, the upper sealing element is positioned above the inner communicating groove, the lower sealing element is sleeved outside the lower part of the sealing mandrel, the lower sealing element is positioned below the inner communicating groove, the hanging mandrel is arranged below the sealing mandrel, the inner through hole of the hanging mandrel is communicated with the blind hole, the upper part of the hanging mandrel is provided with an outer shoulder, the outer diameter of the upper end of the outer shoulder is larger than the inner diameter of the upper part of the hanging sleeve, the hanging mandrel is provided with an upper concave ring section, the upper concave ring section is positioned below the outer shoulder, the lower part of the suspension mandrel is provided with a concave ring section, the lower end of the upper concave ring section is provided with a conical surface, the upper end of the lower concave ring section is provided with a conical surface, the lower part of the suspension sleeve is internally provided with a ring groove, the two ends of the inner hole of the opening ring of the cylinder barrel are provided with conical surfaces, the opening ring is provided with a groove, the inner diameter of the opening ring can be enlarged when the opening ring is stressed by radial force, the opening ring is arranged in the ring groove, the outer diameter of the opening ring is larger than the inner diameter of the upper part of the suspension sleeve, the outer diameter of the opening ring is larger than the inner diameter of the lower part of the suspension sleeve, the inner diameter of the opening ring is smaller than the outer diameter of the lower part of the suspension mandrel, the suspension sleeve is sleeved outside the suspension mandrel, the upper part of the piston joint is connected with the lower part of the suspension mandrel, the connecting part of the piston joint is kept sealed, the inner hole of the piston joint is communicated with the inner hole of the suspension mandrel, the sealing mandrel is arranged in the outer cylinder, the upper part of the suspension sleeve is connected with the lower part of the outer cylinder, when the lower end face of the hanging sleeve is in contact limit with the upper end face of the piston joint, the lower concave ring section corresponds to the opening ring, the inner communicating groove is correspondingly communicated with the outer communicating groove, the upper sealing element is positioned above the outer communicating groove, the lower sealing element is positioned below the outer communicating groove, when the outer shoulder is in contact with the upper end face of the hanging sleeve, the upper concave ring section corresponds to the opening ring, the upper sealing element is positioned below the outer communicating groove, the upper sealing element and the lower sealing element seal the gap between the outer cylinder and the sealing mandrel, the pump cylinder joint is sleeved outside the piston joint, the lower part of the pump cylinder joint is connected with the outer upper part of the hollow oil pump, the lower part of the piston joint is connected with the upper end of the reciprocating motion part of the hollow oil pump, and the upper part of the sucker rod joint is connected with the lower part of the sucker rod column.
The beneficial effects of the utility model are as follows: the utility model is arranged at the lower part of the pumping string and is matched with a hollow oil pump for use, the pumping rod is put down to collide with the pump state, the inner communicating groove is communicated with the outer communicating groove to form an injection channel, steam can be injected into an oil layer, when the steam injection is finished and the pumping is required to be carried out, the ground is lifted by the pumping unit to prevent the flushing distance, the injection channel is closed, the normal pumping can be carried out, the oil well can be opened for production, the pumping can be carried out without opening the wellhead operation after the pressure is reduced, the problems in the prior art are overcome, the injection and production integration is realized, the pumping time is shortened, the early production of the oil well is realized, and the operation cost is reduced.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Detailed Description
An embodiment of the present utility model will be described with reference to fig. 1.
As shown in fig. 1, the embodiment of the utility model comprises a sucker rod joint 1, an outer cylinder 2, a sealing mandrel 3, an upper sealing element 4, a lower sealing element 5, a hanging mandrel 6, a hanging sleeve 7, an opening ring 8, a pump cylinder joint 9 and a piston joint 10, wherein the outer cylinder 2 is provided with an outer communicating groove 2-1, the lower part of the sealing mandrel 3 is provided with a blind hole 3-2, the side surface of the sealing mandrel 3 is provided with an inner communicating groove 3-1, the inner communicating groove 3-1 is communicated with the upper part of the blind hole 3-2, the upper sealing element 4 is sleeved outside the upper part of the sealing mandrel 3, the upper sealing element 4 is positioned above the inner communicating groove 3-1, the lower sealing element 5 is sleeved outside the lower part of the sealing mandrel 3, the lower sealing element 5 is positioned below the inner communicating groove 3-1, the hanging mandrel 6 is arranged below the sealing mandrel 3, the inner through hole of the suspension mandrel 6 is communicated with the blind hole 3-2, the upper part of the suspension mandrel 6 is provided with an outer shoulder 6-1, the outer diameter of the upper end of the outer shoulder 6-1 is larger than the inner diameter of the upper part of the suspension sleeve 7, the suspension mandrel 6 is provided with an upper concave ring section 6-2, the upper concave ring section 6-2 is positioned below the outer shoulder 6-1, the lower part of the suspension mandrel 6 is provided with a lower concave ring section 6-3, the lower end of the upper concave ring section 6-2 is provided with a conical surface, the upper end of the lower concave ring section 6-3 is provided with a conical surface, the lower part of the suspension sleeve 7 is internally provided with a ring groove 7-1, the two ends of the inner hole of the split ring 8 of the cylinder are provided with conical surfaces, the split ring 8 is provided with grooves, so that the inner diameter of the split ring 8 can be enlarged when being subjected to radial force, the split ring 8 is arranged in the ring groove 7-1, the outer diameter of the split ring 8 is larger than the inner diameter of the upper part of the suspension sleeve 7, the outer diameter of the split ring 8 is larger than the inner diameter of the lower part of the suspension sleeve 7, the inner diameter of the split ring 8 is smaller than the outer diameter of the lower part of the suspension mandrel 6, the suspension sleeve 7 is sleeved outside the suspension mandrel 6, the upper part of the piston joint 10 is connected with the lower part of the suspension mandrel 6, the joint keeps sealing, the inner hole of the piston joint 10 is communicated with the inner hole of the suspension mandrel 6, the sealing mandrel 3 is arranged in the outer cylinder 2, the upper part of the suspension sleeve 7 is connected with the lower part of the outer cylinder 2, the upper part of the outer cylinder 2 is connected with the lower part of the pumping rod joint 1, when the lower end surface of the suspension sleeve 7 is in contact with the upper end surface of the piston joint 10 for limiting, the lower concave ring section 6-3 is in correspondence with the split ring 8, the inner communication groove 3-1 is in correspondence with the outer groove 2-1, the upper sealing element 4 is positioned above the outer communication groove 2-1, the lower sealing element 5 is positioned below the outer groove 2-1, when the outer shoulder 6-1 is in contact with the upper end surface of the suspension sleeve 7, the upper concave ring section 6-2 is in contact with the upper end surface of the outer cylinder joint 2, the lower sealing element 4 is in correspondence with the upper sealing sleeve 2-1, the lower sealing element is in contact with the upper sealing sleeve 2-2, the hollow cylinder joint 2 is in contact with the lower sealing sleeve 2, the hollow cylinder 4 is in contact with the upper sealing sleeve 2 is in contact with the hollow cylinder joint 2, and the hollow cylinder 2 is in contact with the upper sealing sleeve 2 has the hollow cylinder 2 has the sealing joint has the upper sealing joint has a lower sealing joint has a sealing part.
When the oil pumping rod is put down to bump the pump, as shown in figure 1, steam can be injected into an oil layer through the outer communicating groove 2-1 and the inner communicating groove 3-1, when the steam injection is finished and the pumping is needed, the ground is used for lifting the anti-flushing distance through the pumping unit (no upper operation equipment is needed), under the internal weight and the pressure pressing of the hollow oil pumping unit, under the action of the conical surface at the upper end of the lower concave ring section 6-3, the split ring 8 expands to separate from the suspension mandrel 6 (under the internal weight and the pressure pressing of the hollow oil pumping unit, the suspension mandrel 6 is not moved), when the upper end of the suspension sleeve 7 is in contact limit with the outer shoulder 6-1, the split ring 8 is positioned at the upper concave ring section 6-2, the split ring 8 enables the suspension mandrel 6 to be fixed with the suspension sleeve 7, and the upper sealing element 4 is positioned under the outer communicating groove 2-1, and the oil well can be opened and produced. When the sucker rod is lowered again to bump the pump, the utility model returns to the state shown in fig. 1, and the inner communicating groove 3-1 can correspond to the outer communicating groove 2-1 again. Therefore, the utility model can also carry out multiple steam injection (called turning on site).
The sucker rod joint 1 is provided with a balance hole 1-1, so that the upper pressure of the sealing mandrel 3 is the same as the external pressure of the utility model.
Claims (1)
1. The utility model provides a hollow oil-well pump annotates and adopts integrated switch, includes sucker rod joint (1), urceolus (2), sealed dabber (3), goes up sealing member (4), lower sealing member (5), hangs dabber (6), hangs cover (7), split ring (8), pump barrel joint (9), piston joint (10), characterized by: the outer cylinder (2) is provided with an outer communicating groove (2-1), the lower part of the sealing mandrel (3) is provided with a blind hole (3-2), the side surface of the sealing mandrel (3) is provided with an inner communicating groove (3-1), the inner communicating groove (3-1) is communicated with the upper part of the blind hole (3-2), the upper sealing element (4) is sleeved outside the upper part of the sealing mandrel (3), the upper sealing element (4) is positioned above the inner communicating groove (3-1), the lower sealing element (5) is sleeved outside the lower part of the sealing mandrel (3), the lower sealing element (5) is positioned below the inner communicating groove (3-1), the hanging mandrel (6) is arranged below the sealing mandrel (3), the inner through hole of the hanging mandrel (6) is communicated with the blind hole (3-2), the upper part of the hanging mandrel (6) is provided with an outer shoulder (6-1), the outer diameter of the upper end of the outer shoulder (6-1) is larger than the inner diameter of the upper part of the hanging sleeve (7), the lower sealing element (5) is positioned outside the lower end of the sealing mandrel (6-1), the lower end of the hanging mandrel (6-1) is provided with a conical section (6-2), the lower end of the hanging mandrel (6-2) is provided with the lower end of the conical section (6-2), the upper end of the lower concave ring section (6-3) is provided with a conical surface, the lower part of the hanging sleeve (7) is internally provided with a ring groove (7-1), the two ends of the inner hole of the opening ring (8) of the cylinder barrel are provided with conical surfaces, the opening ring (8) is provided with a groove, the inner diameter of the opening ring can be enlarged when the opening ring is stressed radially, the opening ring (8) is arranged in the ring groove (7-1), the outer diameter of the opening ring (8) is larger than the inner diameter of the upper part of the hanging sleeve (7), the outer diameter of the opening ring (8) is larger than the inner diameter of the lower part of the hanging sleeve (7), the inner diameter of the opening ring (8) is smaller than the outer diameter of the lower part of the hanging mandrel (6), the hanging sleeve (7) is sleeved outside the hanging mandrel (6), the upper part of the piston joint (10) is connected with the lower part of the hanging mandrel (6), the connecting part is kept sealed, the inner hole of the piston joint (10) is communicated with the inner hole of the hanging mandrel (6), the sealing mandrel (3) is arranged in the outer cylinder (2), the upper part of the hanging sleeve (7) is connected with the lower part of the outer cylinder (2), the upper part of the outer cylinder (2) is communicated with the corresponding to the lower end surface of the hanging sleeve (1) of the lower part (1) and the lower part (1) is communicated with the lower end surface of the lower part of the piston joint (1, the upper sealing element (4) is positioned above the outer communicating groove (2-1), the lower sealing element (5) is positioned below the outer communicating groove (2-1), when the outer shoulder (6-1) is in contact with the upper end face of the hanging sleeve (7), the upper concave ring section (6-2) corresponds to the opening ring (8), the upper sealing element (4) is positioned below the outer communicating groove (2-1), the upper sealing element (4), the lower sealing element (5) seal a gap between the outer cylinder (2) and the sealing mandrel (3), the pump cylinder joint (9) is sleeved outside the piston joint (10), the lower part of the pump cylinder joint (9) is connected with the outer upper part of the hollow oil pump, the lower part of the piston joint (10) is connected with the upper end of a reciprocating motion part of the hollow oil pump, and the upper part of the sucker rod joint (1) is connected with the lower part of the sucker rod column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997759.6U CN219974462U (en) | 2023-04-27 | 2023-04-27 | Injection and production integrated switch of hollow oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997759.6U CN219974462U (en) | 2023-04-27 | 2023-04-27 | Injection and production integrated switch of hollow oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974462U true CN219974462U (en) | 2023-11-07 |
Family
ID=88587061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320997759.6U Active CN219974462U (en) | 2023-04-27 | 2023-04-27 | Injection and production integrated switch of hollow oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974462U (en) |
-
2023
- 2023-04-27 CN CN202320997759.6U patent/CN219974462U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |