CN211692416U - Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve - Google Patents
Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve Download PDFInfo
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- CN211692416U CN211692416U CN202020148048.8U CN202020148048U CN211692416U CN 211692416 U CN211692416 U CN 211692416U CN 202020148048 U CN202020148048 U CN 202020148048U CN 211692416 U CN211692416 U CN 211692416U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 64
- 239000010985 leather Substances 0.000 claims description 57
- 241000191291 Abies alba Species 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 239000003129 oil well Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
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Abstract
The utility model discloses a liquid-driven rodless drainage gas production device and a two-position four-way reversing valve, which comprise a sleeve, a production tree, an oil pipe, a gas pipe, an upper coupling, an outer pipe, a pump cylinder assembly, a plunger assembly, a tail pipe, a high-pressure water pump, a water tank, a hydraulic station and a drain pipe in a gas well; the method is characterized in that: the lower end of the outer pipe is fixedly connected with the pump barrel assembly, a central pipe column assembly is arranged in the cavity of the oil pipe, an annular cavity is formed between the inner wall of the oil pipe and the outer wall of the central pipe column assembly, the lower end of the central pipe column assembly is fixedly connected with the upper end of the pump barrel assembly, a lower coupling at the lower end of the pump barrel assembly is fixedly connected with a tail pipe, and the two-position four-way reversing valve is respectively communicated with the high-pressure water pump, the hydraulic station, the annular cavity in the oil pipe, a central pipe liquid inlet of the central. The utility model discloses a no pole row adopts, uses well liquid to drive power liquid as the liquid, and operation safe and reliable has improved row and has adopted efficiency, and daily maintenance is simple, has reduced field work personnel work load.
Description
Technical Field
The utility model relates to a drainage gas production device's that coal bed gas well, shale gas well used improvement, specific no pole drainage gas production device and two-position four-way reversing valve are driven to liquid that says so.
Background
In the drainage and gas production development process of coal bed gas wells and shale gas wells, the plunger oil well pump is still one of the main lifting devices, and the defects of the traditional plunger oil well pump for drainage and gas production are as follows: the pumping rod cannot be completely suitable for drainage and gas production of coal bed gas wells and shale gas wells, the phenomenon of eccentric wear of the rod and the pipe is easily caused when the pumping rod is used in directional wells and horizontal wells, the pumping rod is broken, the oil pipe is leaked, the well fluid discharge capacity cannot be intelligently adjusted according to the yield requirement, a large amount of gas is contained in the well fluid, the phenomenon of gas lock is easily caused, and the pump efficiency is seriously influenced.
Disclosure of Invention
An object of the utility model is to provide a can adapt to drainage gas production work in coal bed gas well, the shale gas well, use the well liquid of swabbing to ground as liquid drive power liquid, realize no pole row and adopt, can thoroughly solve the pole pipe eccentric wear problem, move reliable and stable liquid drive no pole drainage gas production device more.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the liquid-driven rodless water drainage gas production device comprises a sleeve, a Christmas tree, an oil pipe, a gas pipe, an upper coupling, an outer pipe, a pump cylinder assembly, a plunger assembly, a tail pipe, a high-pressure water pump, a water tank, a hydraulic station and a drain pipe, wherein the sleeve is arranged in a gas well; the method is characterized in that: the lower end of the outer pipe is fixedly connected with the outer wall of the upper end of a large pump barrel joint of a pump barrel assembly in a threaded manner, the upper end of the oil pipe penetrates through the inner cavity of a Christmas tree, a central pipe column assembly is arranged in the inner cavity of the oil pipe, the upper end of the oil pipe is connected with the outer wall of a central pipe of the central pipe column assembly in a sealing manner, an annular cavity is formed between the inner wall of the oil pipe and the outer wall of the central pipe column assembly, a pump barrel assembly connector at the lower end of the central pipe column assembly is fixedly connected with a centralizing joint at the upper end of the pump barrel assembly, a lower coupling at the lower end of the pump barrel assembly is fixedly connected with a tail pipe, the lower end of the tail pipe is sealed, a water outlet of a high-pressure water pump is communicated with a water inlet at the P end of a two-position four-way reversing valve, a hydraulic station is respectively communicated with a left oil pipe joint and a right oil pipe joint of the two And a water return port at the T1 end and a water return port at the T2 end of the two-position four-way reversing valve are communicated with the water tank through water pipes.
The pump barrel assembly comprises a centering joint, a large pump barrel joint, a small pump barrel outer pipe, a small pump barrel joint, a fixed valve and a lower coupling, wherein the outer wall of the lower end of the centering joint is fixedly connected with the upper end of the large pump barrel through threads, the outer wall of the lower end of the large pump barrel is fixedly connected with the upper end of the large pump barrel joint through threads, the side wall of the lower end of the large pump barrel is provided with an upper through hole, the upper through hole is communicated with an annular cavity and the inner cavity of the large pump barrel, the inner wall of the lower end of the large pump barrel joint is fixedly connected with the upper end of the pump barrel joint through threads, the inner wall of the lower end of the pump barrel joint is fixedly connected with the upper end of the small pump barrel through threads, the outer pipe of the small pump barrel is sleeved outside the small pump barrel, the outer wall of the lower end of the pump barrel joint is fixedly connected with the upper end of the small pump barrel, the lower end of the small pump barrel is fixedly connected with the fixed valve through the small pump barrel connector, and the outlet of the fixed valve is communicated with the inner cavity of the small pump barrel connector and the inner cavity of the small pump barrel.
An upper buffer block is fixedly arranged at the upper end in the cavity of the large pump barrel and is positioned at the lower end of the centralizing joint; the cavity of the large pump barrel joint is internally provided with a lower buffer block, and the lower buffer block is positioned at the upper end of the pump barrel joint.
The lower end of the fixed valve is fixedly provided with a fixed valve joint, and the inlet of the fixed valve is communicated with the inner cavity of the fixed valve joint, the inner cavity of the lower coupling and the inner cavity of the tail pipe.
The plunger assembly comprises a large plunger joint, a large plunger, a plunger joint, a small plunger and a small plunger joint, the upper end of the large plunger is fixedly connected with the large plunger joint, the lower end of the large plunger is fixedly connected with the upper end of the small plunger through the plunger joint, the lower end of the small plunger is fixedly connected with the upper end of the movable valve, the lower end of the movable valve is fixedly connected with the upper end of the guide screen pipe, a screen pipe through hole is formed in the side wall of the guide screen pipe, the inner cavity of the guide screen pipe is communicated with the inlet of the movable valve, the outlet of the movable valve is communicated with the inner cavity of the small plunger, the inner cavity of the plunger joint, the inner cavity of the large plunger and the inner cavity of the large plunger joint, the large plunger and the plunger joint are all located in the large pump cylinder cavity of the pump cylinder assembly, the large plunger is in clearance fit with the large pump cylinder, the lower end of the small plunger is inserted into the.
Center tubular column assembly, including the center tube, the center tube connects, the outer tube is supported to the leather cup, the leather cup supporting, leather cup supporting inner tube lower clutch and pump barrel assembly connector, the upper end of center tube is equipped with the center tube inlet, the lower extreme of center tube passes through the center tube and connects with the leather cup and support outer tube connected fixedly, the leather cup supports the outer tube intracavity and is equipped with leather cup supporting inner tube, fixed cover is equipped with the leather cup supporting on the outer wall of leather cup supporting inner tube, interference fit between leather cup supporting and the leather cup supporting outer tube, the lower extreme of leather cup supporting inner tube passes through leather cup supporting inner tube lower clutch and is connected fixedly with pump barrel assembly connector.
The upper end of the leather cup supporting inner pipe is fixedly provided with a leather cup supporting guide joint in a threaded connection mode, and the leather cup supporting guide joint is arranged in the leather cup supporting outer pipe cavity.
The two-position four-way reversing valve comprises a valve body, a central shaft, a left oil pipe joint, a right oil pipe joint, a P-end water inlet, a T1-end water return port, a T2-end water return port, an A-end water outlet and a B-end water outlet, wherein the central shaft is arranged in a cavity of the valve body, and a left sealing block and a right sealing block are arranged on the side wall of the middle part of the central shaft; the valve body comprises a right valve body, a right valve block, a middle valve block, a left valve block and a left valve body, wherein the right valve body, the right valve block, the middle valve block, the left valve block and the left valve body are sequentially arranged and then are connected and fixed into a whole by bolts, the central lines of the inner cavities of the right valve body, the right valve block, the middle valve block, the left valve block and the left valve body are superposed, the left end of the inner cavity of the left valve body is fixedly provided with a left oil pipe joint, the right end of the inner cavity of the right valve body is fixedly provided with a right oil pipe joint, the middle side wall of the inner cavity of the left valve body is provided with a sealing ring which is hermetically connected with the left end of a central shaft, the cavity between the left end of the central shaft and the left oil pipe joint is a left oil inlet cavity, the cavity between the right end of the central shaft and the right oil pipe joint is a right oil inlet cavity, the left sealing block is positioned in, the side wall of the left valve body is fixedly provided with a T1 end water return port communicated with the inner cavity of the left valve block, the side wall of the left valve block is fixedly provided with an A end water outlet communicated with the inner cavity of the left valve block, the side wall of the right valve body is fixedly provided with a T2 end water return port communicated with the inner cavity of the right valve block, the side wall of the right valve block is fixedly provided with a B end water outlet communicated with the inner cavity of the right valve block, the side wall of the middle valve block is fixedly provided with a P end water inlet communicated with the inner cavity of the middle valve block, the right side wall of the left valve body is fixedly provided with a sealing ring matched with the left sealing block, and the right side wall of the right valve body and the left side wall of the middle valve block are fixedly provided with sealing rings matched with the right sealing block.
The outer wall of the central shaft in the cavity of the right valve block is fixedly provided with a blocking edge, the right sealing block is sleeved on the central shaft, the locking nut is sleeved on the central shaft in a threaded connection mode, and the right sealing block is located between the blocking edge and the locking nut.
Another object of the utility model is to provide a simple structure, convenient to use can use in high pressure water medium environment, and long-time operation is reliable in high-pressure unclean aqueous medium, and the switching-over is quick, and is sealed reliable, maintains the convenience, reduces the two-position four-way reversing valve who maintains cost of maintenance.
The two-position four-way reversing valve comprises a valve body, a central shaft, a left oil pipe joint, a right oil pipe joint, a P-end water inlet, a T1-end water return port, a T2-end water return port, an A-end water outlet and a B-end water outlet, wherein the central shaft is arranged in a cavity of the valve body, and a left sealing block and a right sealing block are arranged on the side wall of the middle part of the central shaft; the method is characterized in that: the valve body comprises a right valve body, a right valve block, a middle valve block, a left valve block and a left valve body, wherein the right valve body, the right valve block, the middle valve block, the left valve block and the left valve body are sequentially arranged and then are connected and fixed into a whole by bolts, the central lines of the inner cavities of the right valve body, the right valve block, the middle valve block, the left valve block and the left valve body are superposed, the left end of the inner cavity of the left valve body is fixedly provided with a left oil pipe joint, the right end of the inner cavity of the right valve body is fixedly provided with a right oil pipe joint, the middle side wall of the inner cavity of the left valve body is provided with a sealing ring in sealing connection with the left end of a central shaft, the left sealing block is positioned in the cavity of the left valve block, the right sealing block is positioned in the cavity of the right valve block, the side wall of the left valve body is fixedly provided with a T1 end water return port communicated with the inner cavity of the left valve block, the side wall, the side wall of the right valve body is fixedly provided with a T2 end water return port communicated with the inner cavity of the right valve body, the side wall of the right valve body is fixedly provided with a B end water outlet communicated with the inner cavity of the right valve body, the side wall of the middle valve body is fixedly provided with a P end water inlet communicated with the inner cavity of the middle valve body, the right side wall of the left valve body is fixedly provided with a sealing ring matched with the left sealing block, and the left side wall of the right valve body is fixedly provided with a sealing ring matched with the right sealing block.
The outer wall of the central shaft in the cavity of the right valve block is fixedly provided with a blocking edge, the right sealing block is sleeved on the central shaft, the locking nut is sleeved on the central shaft in a threaded connection mode, and the right sealing block is located between the blocking edge and the locking nut.
The beneficial effects of the utility model reside in that: the pumping unit changes the pumping mode that the traditional pumping unit drives the pumping rod and the plunger to move up and down, realizes rodless pumping, and thoroughly solves the problem of eccentric wear of a rod pipe; in addition, the well fluid pumped to the ground is used as the liquid driving power fluid, so that the whole system is safer, more reliable and more convenient to operate, the problems of pump blockage, sand burying and the like caused by underground coal dust, sand, scale and the like are avoided, the drainage and production efficiency is improved, and the efficiency is 2-3 times that of the traditional jet pump; the underground pump set is simple and reliable, has no easily damaged parts, is stable in operation and simple in daily maintenance, and reduces the workload of field workers.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged schematic sectional view of the pump cylinder assembly of the present invention;
fig. 3 is an enlarged schematic view of the plunger assembly according to the present invention;
FIG. 4 is an enlarged schematic view of the center tube assembly according to the present invention;
FIG. 5 is a schematic diagram of the two-position four-way reversing valve according to the present invention;
fig. 6 is an enlarged schematic view of the two-position four-way reversing valve of the present invention.
In the figure: 1. a sleeve; 2. a Christmas tree; 3. an oil pipe; 4. a gas delivery pipe; 5. a central tubular column assembly; 51. a central tube; 52. a central pipe joint; 53. the leather cup supports the guide joint; 54. the leather cup supports the outer pipe; 55. supporting by a leather cup; 56. the leather cup supports the inner pipe; 57. the leather cup supports the lower joint of the inner pipe; 58. a pump barrel assembly connector; 59. a central tube liquid inlet; 6. a two-position four-way reversing valve; 601. a right valve body; 602. a right valve block; 603. a middle valve block; 604. a left valve block; 605. a left valve body; 606. a bolt; 607. a left tubing joint; 608. a right tubing joint; 609. a seal ring; 610. a seal ring; 611. a central shaft; 612. a left sealing block; 613. blocking edges; 614. a right seal block; 615. locking the nut; 7. a plunger assembly; 71. a large plunger joint; 72. a large plunger; 73. a plunger coupling; 74. a small plunger; 75. a small plunger tip; 76. a traveling valve; 77. guiding the sieve tube; 78. a screen pipe through hole; 8. a pump barrel assembly; 801. righting the joint; 802. an upper buffer block; 803. a large pump barrel; 804. an upper through hole; 805. a large pump barrel joint; 806. a lower buffer block; 807. a pump barrel fitting; 808. a lower through hole; 809. a small pump barrel outer tube; 810. a small pump barrel; 811. a small pump barrel joint; 812. a fixed valve; 813. fixing a valve joint; 814. a lower coupling; 9. mounting a coupling; 10. an outer tube; 11. an annular cavity; 12. a first liquid inlet pipe; 13. a second liquid inlet pipe; 14. a high pressure water pump; 15. a water tank; 16. a hydraulic station; 17. a drain pipe; 18. a tail pipe.
Detailed Description
The present invention is manufactured with reference to fig. 1, 2, 3, 4, 5, and 6.
This liquid drives rodless drainage gas production device, sleeve pipe 1 in the gas well, christmas tree 2, oil pipe 3, the gas-supply pipe 4, go up coupling 9, outer tube 10, pump cylinder assembly 8, plunger assembly 7, tail pipe 18, high pressure water pump 14, water tank 15, hydraulic pressure station 16 and drain pipe 17, sealed fixed the setting at the last oral area of sleeve pipe 1 of christmas tree 2, gas-supply pipe 4 is linked together with the inner chamber of christmas tree 2, so that the gaseous output in 2 intracavity of christmas tree, the lower extreme of oil pipe 3 is connected fixedly through last coupling 9 and outer tube 10, high pressure water pump 14's water inlet is linked together with water tank 15, water tank 15 is linked together with drain pipe 17, so that the water in water tank 15 can discharge, plunger assembly 7 establishes in 8 intracavity of pump cylinder assembly, its characterized in that: the lower end of the outer pipe 10 is fixedly connected with the outer wall of the upper end of a large pump barrel joint 805 of a pump barrel assembly 8 in a threaded manner, the upper end of an oil pipe 3 penetrates through the inner cavity of a Christmas tree 2, a center pipe assembly 5 is arranged in the cavity of the oil pipe 3, the upper end of the oil pipe 3 is hermetically connected with the outer wall of a center pipe 51 of the center pipe assembly 5, an annular cavity 11 is formed between the inner wall of the oil pipe 3 and the outer wall of the center pipe assembly 5, a pump barrel assembly connector 58 at the lower end of the center pipe assembly 5 is fixedly connected with a centering joint 801 at the upper end of the pump barrel assembly 8, a lower coupling 814 at the lower end of the pump barrel assembly 8 is fixedly connected with a tail pipe 18, the lower end of the tail pipe 18 is sealed, the water outlet of a high-pressure water pump 14 is communicated with the water inlet at the P end of the two-position four-way reversing valve 6, a hydraulic station 16 is respectively communicated with a left oil pipe joint 607 and a right, the water outlet at the A end of the two-position four-way reversing valve 6 is communicated with a central pipe liquid inlet 59 of the central pipe column assembly 5 through a second liquid inlet pipe 13, and the water return port at the T1 end and the water return port at the T2 end of the two-position four-way reversing valve 6 are communicated with a water tank 15 through water pipes.
The pump barrel assembly 8 comprises a centering joint 801, a large pump barrel 803, a large pump barrel joint 805, a pump barrel joint 807, a small pump barrel 810, a small pump barrel outer pipe 809, a small pump barrel joint 811, a fixed valve 812 and a lower hoop 814, wherein the outer wall of the lower end of the centering joint 801 is fixedly connected with the upper end of the large pump barrel 803 through threads, the outer wall of the lower end of the large pump barrel 803 is fixedly connected with the upper end of the large pump barrel joint 805 through threads, the side wall of the lower end of the large pump barrel 803 is provided with an upper through hole 804, the upper through hole 804 is communicated with the annular cavity 11 and the inner cavity of the large pump barrel 803, the inner wall of the lower end of the large pump barrel joint 805 is fixedly connected with the upper end of the pump barrel joint through threads, the inner wall of the lower end of the pump barrel joint 807 of the small pump barrel joint is fixedly connected with the upper end of the small pump barrel 810 through threads, the outer pipe 809 is sleeved outside the small pump barrel 810, the outer pipe 807 of the outer pipe 809, the, the lower through hole 808 is communicated with the inner cavity of the sleeve 1 and the inner cavity of the small pump barrel outer tube 809, the lower end of the small pump barrel 810 is fixedly connected with the fixed valve 812 through the small pump barrel joint 811, and the outlet of the fixed valve 812 is communicated with the inner cavity of the small pump barrel joint 811 and the inner cavity of the small pump barrel 810.
An upper buffer block 802 is fixedly arranged at the upper end in the cavity of the large pump barrel 803, and the upper buffer block 802 is positioned at the lower end of the centralizing joint 801; the cavity of the large pump barrel joint 805 is internally provided with a lower buffer block 806, and the lower buffer block 806 is positioned at the upper end of the pump barrel joint 807, so that the plunger assembly 7 can play a role in buffering when moving upwards and downwards, and the plunger assembly 7 is prevented from being damaged.
The lower end of the fixed valve 812 is fixedly provided with a fixed valve joint 813, and the inlet of the fixed valve 812 is communicated with the inner cavity of the fixed valve joint 813, the inner cavity of the lower coupling 814 and the inner cavity of the tail pipe 18.
The plunger assembly 7 comprises a large plunger joint 71, a large plunger 72, a plunger joint 73, a small plunger 74, a small plunger joint 75, a traveling valve 76 and a guide sieve tube 77, wherein the upper end of the large plunger 72 is fixedly connected with the large plunger joint 71, the lower end of the large plunger 72 is fixedly connected with the upper end of the small plunger 74 through the plunger joint 73, the lower end of the small plunger 74 is fixedly connected with the upper end of the traveling valve 76, the lower end of the traveling valve 76 is fixedly connected with the upper end of the guide sieve tube 77, the side wall of the guide sieve tube 77 is provided with a sieve tube through hole 78, the inner cavity of the guide sieve tube 77 is communicated with the inlet of the traveling valve 76, the outlet of the traveling valve 76 is communicated with the inner cavity of the small plunger 74, the inner cavity of the plunger joint 73, the inner cavity of the large plunger 72 and the inner cavity of the large plunger joint 71, the large plunger 72 and the plunger joint 73 are all positioned in the inner cavity 803 of the large pump barrel assembly 8, the, the lower end of the small plunger 74 is inserted into the cavity of the small pump cylinder 810 of the pump cylinder assembly 8, and the small plunger 74 is in clearance fit with the small pump cylinder 810.
The central pipe column assembly 5 comprises a central pipe 51, a central pipe joint 52, a leather cup supporting outer pipe 54, a leather cup supporting 55, a leather cup supporting inner pipe 56, a leather cup supporting inner pipe lower joint 57 and a pump cylinder assembly connector 58, wherein a central pipe liquid inlet 59 is formed in the upper end of the central pipe 51, the lower end of the central pipe 51 is fixedly connected with the leather cup supporting outer pipe 54 through the central pipe joint 52, the leather cup supporting inner pipe 56 is arranged in the cavity of the leather cup supporting outer pipe 54, a leather cup supporting 55 is fixedly sleeved on the outer wall of the leather cup supporting inner pipe 56, the leather cup supporting 55 is in interference fit with the leather cup supporting outer pipe 54, and the lower end of the leather cup supporting inner pipe 56 is fixedly connected with the pump cylinder assembly connector 58 through the leather cup supporting inner pipe.
The upper end of the leather cup supporting inner pipe 56 is fixedly provided with a leather cup supporting guide joint 53 in a threaded connection mode, and the leather cup supporting guide joint 53 is arranged in the cavity of the leather cup supporting outer pipe 54, so that the leather cup supporting outer pipe 54 can be smoothly sleeved and fixed on the outer side of the leather cup supporting 55.
This two-position four-way reversing valve 6, including valve body, center pin 611, left oil pipe connector 607, right oil pipe connector 608, P end water inlet, T1 end return water mouth, T2 end return water mouth, A end outlet and B end outlet, the valve body intracavity is equipped with center pin 611, is equipped with left sealed piece 612 and right sealed piece 614 on the middle part lateral wall of center pin 611, its characterized in that: the valve body comprises a right valve body 601, a right valve block 602, a middle valve block 603, a left valve block 604 and a left valve body 605, wherein the right valve body 601, the right valve block 602, the middle valve block 603, the left valve block 604 and the left valve body 605 are sequentially arranged and then are connected and fixed into a whole by bolts 606, the center lines of the inner cavities of the right valve body 601, the right valve block 602, the middle valve block 603, the left valve block 604 and the left valve body 605 are superposed, a left oil pipe connector 607 is fixedly arranged at the left end of the inner cavity of the left valve body 605, a right oil pipe connector 608 is fixedly arranged at the right end of the inner cavity of the right valve body 601 so as to be connected with the hydraulic station 16, a sealing ring 609 in sealing connection with the left end of a central shaft 611 is arranged on the side wall of the middle part of the inner cavity of the left valve body 605, and similarly, a sealing ring 609 in sealing connection with the right end of the central shaft 611 is arranged, the cavity between the right end of the central shaft 611 and the right oil pipe joint 608 is a right side oil inlet cavity, the left sealing block 612 is positioned in the cavity of the left valve block 604, the right sealing block 614 is positioned in the cavity of the right valve block 602, the side wall of the left valve block 605 is fixedly provided with a T1 end water return port communicated with the cavity of the left valve block 604, the side wall of the left valve block 604 is fixedly provided with an A end water outlet communicated with the cavity of the left valve block 604, the side wall of the right valve block 601 is fixedly provided with a T2 end water return port communicated with the cavity of the right valve block 602, the side wall of the right valve block 602 is fixedly provided with a B end water outlet communicated with the cavity of the right valve block 602, the side wall of the middle valve block 603 is fixedly provided with a P end water inlet communicated with the cavity of the middle valve block 603, the right side wall of the left valve block 605 and the left side wall of the middle valve block 603 are both fixedly provided with a sealing ring 610 matched with the left sealing block 612, the right side wall of the left valve block 603 of the, thus, after the central shaft 611 moves leftwards, the left sealing block 612 and the right sealing block 614 respectively form end face sealing with the sealing ring 610 positioned on the left side, at this time, the water inlet at the P end is communicated with the water outlet at the A end, and the water outlet at the B end is communicated with the water return port at the T2 end; after the central shaft 611 moves rightwards, the left sealing block 612 and the right sealing block 614 respectively form end face sealing with the sealing ring 610 on the right side, the water inlet at the P end is communicated with the water outlet at the B end, and the water outlet at the A end is communicated with the water return port at the T1 end.
A retaining edge 613 is fixedly arranged on the outer wall of a central shaft 611 in the cavity of the right valve block 602, a right sealing block 614 is sleeved on the central shaft 611, a locking nut 615 is sleeved on the central shaft 611 in a threaded connection manner, and the right sealing block 614 is positioned between the retaining edge 613 and the locking nut 615, so that the assembly is facilitated.
Use in coal bed gas well, shale gas well the utility model discloses when carrying out drainage gas production, hydraulic pressure station 16 is prior art, and its control two-position four-way reversing valve 6's operating condition, the water in the water tank 15 can be followed drain pipe 17 overflow and discharged, and high pressure water pump 14 sends into the water in the water tank 15 the P end water inlet of two-position four-way reversing valve 6, and T1 end return water mouth and T2 end return water mouth flow back well liquid in the water tank 15.
When the plunger assembly 7 moves downwards, water is discharged from a water outlet at the end A of the two-position four-way reversing valve 6, enters the cavity of the central pipe column assembly 5, and then enters the cavity of the large pump barrel 803 of the pump barrel assembly 8, so that the water is applied to the plunger assembly 7, the fixed valve 812 is closed, well liquid in the cavity of the large pump barrel 803 below the large plunger 72 enters the annular cavity 11 from the upper through hole 804, and then flows into the water tank 15 from the water inlet pipe 12, the water outlet at the end B and the water return port T2; when plunger assembly 7 is lowered to a certain position, traveling valve 76 opens and well fluid in chamber 810 of small cylinder above fixed valve 812 enters chamber 74 of small cylinder and flows from chamber 72 of large cylinder 803 of large cylinder.
When the plunger assembly 7 moves upwards, water is discharged from a water outlet at the end B of the two-position four-way reversing valve 6, enters the annular cavity 11, then enters a large pump barrel 803 cavity below the large plunger 72 from the upper through hole 804, so that the large plunger 72 is pushed upwards to move upwards, the traveling valve 76 is closed, well liquid in the large pump barrel 803 cavity above the large plunger 72 flows upwards through an inner cavity of the central pipe column assembly 5, and then enters the water tank 15 from a water inlet pipe 13 at the end A and a water outlet at the end T1; during the upward movement of the plunger assembly 7, the fixed valve 812 is opened, and the well fluid in the cavity of the casing 1 enters the cavity of the outer tube 809 of the small pump cylinder from the lower through hole 808, the cavity of the tail pipe 18, the fixed valve 812 and finally is stored in the cavity of the small pump cylinder 810 between the fixed valve 812 and the traveling valve 76.
The above steps are repeated in a circulating way to achieve the purpose of extracting the well fluid.
Claims (10)
1. Liquid drives rodless drainage gas production device, sleeve pipe (1) in the gas well, production tree (2), oil pipe (3), gas-supply pipe (4), go up coupling (9), outer tube (10), pump barrel assembly (8), plunger assembly (7), tail pipe (18), high pressure water pump (14), water tank (15), hydraulic pressure station (16) and drain pipe (17), production tree (2) seal the fixed upper oral area that sets up in sleeve pipe (1), gas-supply pipe (4) are linked together with the inner chamber of production tree (2), the lower extreme of oil pipe (3) is connected fixedly through last coupling (9) and outer tube (10), the water inlet and water tank (15) of high pressure water pump (14) are linked together, water tank (15) are linked together with drain pipe (17), establish in pump barrel assembly (8) intracavity plunger assembly (7), its characterized in that: the lower end of the outer pipe (10) is fixedly connected with the outer wall of the upper end of a large pump barrel joint (805) of a pump barrel assembly (8) in a threaded manner, the upper end of the oil pipe (3) penetrates through the inner cavity of the Christmas tree (2), a central pipe column assembly (5) is arranged in the cavity of the oil pipe (3), the upper end of the oil pipe (3) is hermetically connected with the outer wall of a central pipe (51) of the central pipe column assembly (5), an annular cavity (11) is formed between the inner wall of the oil pipe (3) and the outer wall of the central pipe column assembly (5), a pump barrel assembly connector (58) at the lower end of the central pipe column assembly (5) is fixedly connected with a centralizing connector (801) at the upper end of the pump barrel assembly (8), a lower coupling (814) at the lower end of the pump barrel assembly (8) is fixedly connected with a tail pipe (18), the lower end of the tail pipe (18) is sealed, a water outlet of a high-, the hydraulic station (16) is respectively communicated with a left oil pipe joint (607) and a right oil pipe joint (608) of the two-position four-way reversing valve (6) through an oil pipeline, a water outlet at the B end of the two-position four-way reversing valve (6) is communicated with an annular cavity (11) in the oil pipe (3) through a first liquid inlet pipe (12), a water outlet at the A end of the two-position four-way reversing valve (6) is communicated with a central pipe liquid inlet (59) of a central pipe column assembly (5) through a second liquid inlet pipe (13), and a water return port at the T1 end and a water return port at the T2 end of the two-position four-way reversing valve (6) are communicated with a water tank (15).
2. The liquid-driven rodless water drainage gas recovery device according to claim 1, wherein: the pump barrel assembly (8) comprises a centralizing joint (801), a large pump barrel (803), a large pump barrel joint (805), a pump barrel joint (807), a small pump barrel (810), a small pump barrel outer pipe (809), a small pump barrel joint (811), a fixed valve (812) and a lower hoop (814), wherein the outer wall of the lower end of the centralizing joint (801) is fixedly connected with the upper end of the large pump barrel (803) through threads, the outer wall of the lower end of the large pump barrel (803) is fixedly connected with the upper end of the large pump barrel joint (805) through threads, the side wall of the lower end of the large pump barrel (803) is provided with an upper through hole (804), the upper through hole (804) is communicated with an annular cavity (11) and an inner cavity of the large pump barrel (803), the inner wall of the lower end of the large pump barrel joint (807) is fixedly connected with the upper end of the pump barrel joint (807) through threads, the inner wall of the lower end of the pump barrel joint (807) is fixedly connected with the upper end of the small pump barrel (810, the outer wall of the lower end of the pump barrel joint (807) is fixedly connected with the upper end of the small pump barrel outer pipe (809) in a threaded manner, the side wall of the upper end of the small pump barrel outer pipe (809) is provided with a lower through hole (808), the lower through hole (808) is communicated with the inner cavity of the sleeve (1) and the inner cavity of the small pump barrel outer pipe (809), the lower end of the small pump barrel (810) is fixedly connected with a fixed valve (812) through the small pump barrel joint (811), and the outlet of the fixed valve (812) is communicated with the inner cavity of the small pump barrel joint (811) and the inner cavity of the small pump barrel (810).
3. The liquid-driven rodless water drainage gas recovery device according to claim 2, wherein: an upper buffer block (802) is fixedly arranged at the upper end in the cavity of the large pump barrel (803), and the upper buffer block (802) is positioned at the lower end of the centralizing joint (801); a lower buffer block (806) is arranged in a cavity of the large pump barrel joint (805), and the lower buffer block (806) is located at the upper end of the pump barrel joint (807).
4. The liquid-driven rodless water drainage gas recovery device according to claim 2, wherein: the lower end of the fixed valve (812) is fixedly provided with a fixed valve joint (813), and the inlet of the fixed valve (812) is communicated with the inner cavity of the fixed valve joint (813), the inner cavity of the lower coupling (814) and the inner cavity of the tail pipe (18).
5. The liquid-driven rodless water drainage gas recovery device according to claim 1, wherein: the plunger assembly (7) comprises a large plunger joint (71), a large plunger (72), a plunger joint (73), a small plunger (74), a small plunger joint (75), a traveling valve (76) and a guide sieve tube (77), wherein the upper end of the large plunger (72) is fixedly connected with the large plunger joint (71), the lower end of the large plunger (72) is fixedly connected with the upper end of the small plunger (74) through the plunger joint (73), the lower end of the small plunger (74) is fixedly connected with the upper end of the traveling valve (76), the lower end of the traveling valve (76) is fixedly connected with the upper end of the guide sieve tube (77), the inner cavity of the guide sieve tube (77) is communicated with the inlet of the traveling valve (76), the outlet of the traveling valve (76) is communicated with the inner cavity of the small plunger (74), the inner cavity of the plunger joint (73), the inner cavity of the large plunger (72) and the inner cavity of the large plunger joint (71), and the plunger joint (71), The large plunger (72) and the plunger joint (73) are both positioned in a large pump barrel (803) cavity of the pump barrel assembly (8), the large plunger (72) is in clearance fit with the large pump barrel (803), the lower end of the small plunger (74) is inserted into a small pump barrel (810) cavity of the pump barrel assembly (8), and the small plunger (74) is in clearance fit with the small pump barrel (810).
6. The liquid-driven rodless water drainage gas recovery device according to claim 1, wherein: central column assembly (5), including center tube (51), center tube head (52), the leather cup supports outer tube (54), the leather cup supports (55), leather cup supports inner tube (56), leather cup supports inner tube lower clutch (57) and pump barrel assembly connector (58), the upper end of center tube (51) is equipped with center tube inlet (59), the lower extreme of center tube (51) is connected fixedly through center tube head (52) and leather cup support outer tube (54), leather cup supports and is equipped with leather cup support inner tube (56) in outer tube (54) intracavity, the fixed cover is equipped with leather cup support (55) on the outer wall of leather cup support inner tube (56), interference fit between leather cup support (55) and leather cup support outer tube (54), the lower extreme of leather cup support inner tube (56) is connected fixedly through leather cup support inner tube lower clutch (57) and pump barrel assembly connector (58).
7. The liquid-driven rodless water drainage gas recovery device of claim 6, wherein: the upper end of the leather cup supporting inner pipe (56) is fixedly provided with a leather cup supporting guide joint (53) in a threaded connection mode, and the leather cup supporting guide joint (53) is arranged in a cavity of the leather cup supporting outer pipe (54).
8. The liquid-driven rodless water drainage gas recovery device according to claim 1, wherein: the two-position four-way reversing valve (6) comprises a valve body, a central shaft (611), a left oil pipe joint (607), a right oil pipe joint (608), a P-end water inlet, a T1-end water return port, a T2-end water return port, an A-end water outlet and a B-end water outlet, wherein the central shaft (611) is arranged in a valve body cavity, a left sealing block (612) and a right sealing block (614) are arranged on the side wall of the middle part of the central shaft (611), the valve body is composed of a right valve body (601), a right valve block (602), a middle valve block (603), a left valve block (604) and a left valve body (605), the right valve body (601), the right valve block (602), the middle valve block (603), the left valve block (604) and the left valve body (605) are sequentially arranged and then are connected and fixed into a whole by bolts (606), and the center lines of the inner cavities of the right valve body (601), the right valve block (602), the middle, a left oil pipe joint (607) is fixedly arranged at the left end of an inner cavity of the left valve body (605), a right oil pipe joint (608) is fixedly arranged at the right end of the inner cavity of the right valve body (601), a sealing ring (609) which is in sealing connection with the left end of a central shaft (611) is arranged on the side wall of the middle part of the inner cavity of the left valve body (605), similarly, a sealing ring (609) which is in sealing connection with the right end of the central shaft (611) is arranged on the side wall of the middle part of the inner cavity of the right valve body (601), a left sealing block (612) is positioned in the cavity of the left valve block (604), a right sealing block (614) is positioned in the cavity of the right valve block (602), a T1 end water return port which is communicated with the inner cavity of the left valve block (604) is fixedly arranged on the side wall of the left valve body (605), an A end water outlet which is communicated with the inner cavity of the left valve block (604) is fixedly arranged on the, the side wall of the right valve block (602) is fixedly provided with a B-end water outlet communicated with the inner cavity of the right valve block (602), the side wall of the middle valve block (603) is fixedly provided with a P-end water inlet communicated with the inner cavity of the middle valve block (603), the right side wall of the left valve block (605) is fixedly provided with a sealing ring (610) matched with the left sealing block (612) on the left side wall of the middle valve block (603), and the left side wall of the right valve block (601) is fixedly provided with a sealing ring (610) matched with the right sealing block (614) on the right side wall of the middle valve block (603).
9. Two-position four-way reversing valve, including valve body, center pin (611), left oil pipe connector (607), right oil pipe connector (608), P end water inlet, T1 end return water mouth, T2 end return water mouth, A end outlet and B end outlet, valve intracavity is equipped with center pin (611), is equipped with left sealed piece (612) and right sealed piece (614) on the middle part lateral wall of center pin (611), its characterized in that: the valve body is composed of a right valve body (601), a right valve block (602), a middle valve block (603), a left valve block (604) and a left valve body (605), the right valve body (601), the right valve block (602), the middle valve block (603), the left valve block (604) and the left valve body (605) are sequentially arranged and then are connected and fixed into a whole by bolts (606), the inner cavity center lines of the right valve body (601), the right valve block (602), the middle valve block (603), the left valve block (604) and the left valve body (605) are superposed, the left end of the inner cavity of the left valve body (605) is fixedly provided with a left oil pipe connector (607), the right end of the inner cavity of the right valve body (601) is fixedly provided with a right oil pipe connector (608), the side wall of the middle part of the inner cavity of the left valve body (605) is provided with a sealing ring (609) which is hermetically connected with the left end of a central shaft (611), and similarly, the side wall of the middle part, the left sealing block (612) is located in a cavity of the left valve block (604), the right sealing block (614) is located in a cavity of the right valve block (602), a T1 end water return port communicated with the cavity of the left valve block (604) is fixedly arranged on the side wall of the left valve block (605), an A end water outlet communicated with the cavity of the left valve block (604) is fixedly arranged on the side wall of the left valve block (604), a T2 end water return port communicated with the cavity of the right valve block (602) is fixedly arranged on the side wall of the right valve block (601), a B end water outlet communicated with the cavity of the right valve block (602) is fixedly arranged on the side wall of the right valve block (602), a P end water inlet communicated with the cavity of the middle valve block (603) is fixedly arranged on the side wall of the middle valve block (603), sealing rings (610) matched with the left sealing block (612) are fixedly arranged on the right side wall of the left valve block (605) and on the left side wall of the middle valve block (603), sealing rings (614) matched with the right sealing blocks (601) are fixedly arranged on the left side wall of the middle valve block (603), and the sealing ring (610).
10. The two-position, four-way reversing valve of claim 9, wherein: the outer wall of a central shaft (611) in the cavity of the right valve block (602) is fixedly provided with a blocking edge (613), the right sealing block (614) is sleeved on the central shaft (611), a locking nut (615) is connected on the central shaft (611) in a threaded connection mode, and the right sealing block (614) is located between the blocking edge (613) and the locking nut (615).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020148048.8U CN211692416U (en) | 2020-01-30 | 2020-01-30 | Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020148048.8U CN211692416U (en) | 2020-01-30 | 2020-01-30 | Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692416U true CN211692416U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020148048.8U Withdrawn - After Issue CN211692416U (en) | 2020-01-30 | 2020-01-30 | Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve |
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| Country | Link |
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| CN (1) | CN211692416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088966A (en) * | 2020-01-30 | 2020-05-01 | 山东威马泵业股份有限公司 | Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve |
-
2020
- 2020-01-30 CN CN202020148048.8U patent/CN211692416U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088966A (en) * | 2020-01-30 | 2020-05-01 | 山东威马泵业股份有限公司 | Liquid-driving rodless water-draining gas-producing device and two-position four-way reversing valve |
| CN111088966B (en) * | 2020-01-30 | 2024-05-28 | 山东威马泵业股份有限公司 | Hydraulic drive rodless drainage gas production device and two-position four-way reversing valve |
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