CN204877381U - Two clack valves of liquid accuse - Google Patents
Two clack valves of liquid accuse Download PDFInfo
- Publication number
- CN204877381U CN204877381U CN201520411591.1U CN201520411591U CN204877381U CN 204877381 U CN204877381 U CN 204877381U CN 201520411591 U CN201520411591 U CN 201520411591U CN 204877381 U CN204877381 U CN 204877381U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- bottom spool
- barrel
- external seal
- cylindrical shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title abstract description 3
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a two clack valves of liquid accuse, including barrel, top connection and lower clutch, the upper and lower both ends at the barrel are connected with lower connector thread to the top connection, be equipped with the sliding sleeve in the barrel with one heart, and the lower extreme of sliding sleeve being fixed through radial shear pin that sets up and barrel, going up during case, bottom spool pass through the ring cavity of spacer ring suit between barrel and sliding sleeve, and on the cyclic annular boss of lower terminal surface seat in the barrel of bottom spool, the lower terminal surface seat of going up the case is on the up end of bottom spool, and the up end of going up the case is tight by the lower terminal surface of top connection top. It constitutes by an inside seal section of thick bamboo, an external seal section of thick bamboo, valve clack, torsional spring, round pin axle and sealing washer to go up case and bottom spool. The utility model discloses shutoff speed tubular column is managed in succession, stops fluid and the gaseous pipe in succession that gets into in the pit, and convenient pipe in succession goes out in the well.
Description
Technical field
The utility model belongs to speed tubing string production gas technology field, is specifically related to a kind of hydraulic control bivalve valve.
Background technology
Due to reasons such as gas reservoir pressure drop, the immersion of shaft bottom water, gas flow rate reduction, shaft bottom hydrops and Liquid output increases, in exploitation gas reservoir process, most gas well all constantly can decline along with the output of carrying out of producing, so that finally stops production.At present, domestic main employing speed tubing string drainage gas recovery improves shaft bottom situation, promotes gas well steadily to produce and recovers blowing production.The corollary equipment of conventional speed tubing string drainage gas recovery comprises: operation window, continuous-tube well mouth hanger, continuous-tube blanking plug, slips fixator etc.But easily there is sand plug in the speed tubing string continuous-tube duration of work of routine; And due to the existence of air pressure in well, continuous-tube cannot trip out.
Summary of the invention
The utility model provides a kind of hydraulic control bivalve valve, solves to there is due to air pressure in well the problem that continuous-tube cannot trip out.
The technical scheme that the utility model adopts is: comprise cylindrical shell, top connection and lower contact, described top connection and lower contact are threaded in the two ends up and down of cylindrical shell, with one heart sliding sleeve is housed in described cylindrical shell, and the lower end of sliding sleeve is fixed by the radial shear pin that arranges and cylindrical shell, upper valve core, bottom spool are sleeved in the ring cavity between cylindrical shell and sliding sleeve by spacer ring, and on the annular boss of the lower surface seat of bottom spool in cylindrical shell, the lower surface seat of upper valve core is on the upper surface of bottom spool, and the upper surface of upper valve core is held out against by the lower surface of top connection.
Further, described upper valve core and bottom spool form by interior sealing drum, external seal cylinder, flap, torsion spring, bearing pin and sealing ring; The threaded upper ends of described external seal cylinder is sleeved on spacer ring, and interior sealing sleeve is contained in external seal cylinder, and is provided with sealing ring between interior sealing drum and external seal cylinder; Described bearing pin is fixed on the side, middle part of external seal cylinder, described flap is hinged on bearing pin, and described torsion spring set is contained on bearing pin, and one end of torsion spring acts on the outside of flap, the other end is installed on external seal cylinder, makes flap under the effect of torsion spring, have the trend of inwardly rotating around straight pin all the time.
Further, the upper port of described sliding sleeve is tapered.
The advantage that the utility model compared with prior art has and effect:
1, can shutoff speed tubing string continuous-tube, stop downhole fluid and gas to enter continuous-tube, facilitate continuous-tube to trip out in well.
2, sand-flushing one way valve can be used as to use.
3, bivalve structure substantially increases the reliability of use.
4, be provided with the individual seals structure of interior sealing drum and sealing ring composition in spool external seal cylinder, the Long-Time Service of 1 to 2 year can be realized.
5, all parts all select the manufacture of novel high-strength stainless steel anti-corrosion material, greatly can improve the security reliability of instrument in down-hole.
6, when the gas production of gas well be less than minimum take flow quantity time, by shutoff speed tubing string continuous-tube, downhole fluid and gas is stoped to enter continuous-tube, continuous-tube is tripped out in well, be replaced with the continuous-tube that size is less, to the completion water pumping gas production operation that gas well carries out again, extend the gas well gas production time.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model valve core structure schematic diagram;
Fig. 3 is the utility model mounting structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing 1,2,3 and detailed description of the invention, the utility model is described in detail.
A kind of hydraulic control bivalve valve, comprise cylindrical shell 1, top connection 4 and lower contact 5, described top connection 4 and lower contact 5 are threaded in the two ends up and down of cylindrical shell 1, in described cylindrical shell 1, sliding sleeve 7 is housed with one heart, and the lower end of sliding sleeve 7 is fixed with cylindrical shell 1 by the radial shear pin 10 arranged, upper valve core 8, bottom spool 9 are sleeved in the ring cavity between cylindrical shell 1 and sliding sleeve 7 by spacer ring 11, and on the annular boss of the lower surface seat of bottom spool 9 in cylindrical shell 1, the lower surface seat of upper valve core 8 is on the upper surface of bottom spool 9, and the upper surface of upper valve core 8 is held out against by the lower surface of top connection 4.The upper port of described sliding sleeve 7 is tapered.
Described upper valve core 8 and bottom spool 9 form by interior sealing drum 13, external seal cylinder 12, flap 14, torsion spring 15, bearing pin 16 and sealing ring 17; The threaded upper ends of described external seal cylinder 12 is sleeved on spacer ring 11, and interior sealing drum 13 is sleeved in external seal cylinder 12, and is provided with sealing ring 17 between interior sealing drum 13 and external seal cylinder 12; Described bearing pin 16 is fixed on the side, middle part of external seal cylinder 12, described flap 14 is hinged on bearing pin 16, described torsion spring 15 is sleeved on bearing pin 16, and one end of torsion spring 15 acts on the outside of flap 14, the other end is installed on external seal cylinder 12, makes flap 14 under the effect of torsion spring 15, have the trend of inwardly rotating around straight pin 16 all the time.
During use, be threaded with coiled tubing connector 2 by top connection 4, by lower contact 5 and coiled tubing blanking plug 3 threaded engagement.
Its operating principle is: when after the gas production end of job, need when coiled tubing proposes by pit shaft, steel ball 6 can be dropped in continuous-tube, sliding sleeve 7 seals by the upper port that steel ball 6 can be seated sliding sleeve 7 under the effect of deadweight, pressurization makes fluid enter in continuous-tube, promote sliding sleeve by steel ball shear pin 10 is cut off, sliding sleeve 7 is made to fall to departing from upper valve core 8 and bottom spool 9, upper valve core 8 inwardly rotates the lower port blocking sealing ring 17 and interior sealing drum 13 with the flap 14 on bottom spool 9 under the restoring force effect of torsion spring 15, stops downhole fluid and gas to enter continuous-tube.Thus can ensure that continuous-tube safety proposes in pit shaft.
Above-described embodiment, just preferred embodiment of the present utility model, is not used for limiting practical range of the present utility model, therefore all equivalent variations done with content described in the utility model claim, all should be included within the utility model right.
Claims (3)
1. a hydraulic control bivalve valve, comprise cylindrical shell (1), top connection (4) and lower contact (5), described top connection (4) and lower contact (5) are threaded in the two ends up and down of cylindrical shell (1), it is characterized in that: sliding sleeve (7) is housed in described cylindrical shell (1) with one heart, and the lower end of sliding sleeve (7) is fixed with cylindrical shell (1) by the radial shear pin (10) arranged, upper valve core (8), bottom spool (9) is sleeved in the ring cavity between cylindrical shell (1) and sliding sleeve (7) by spacer ring (11), and on the annular boss of the lower surface seat of bottom spool (9) in cylindrical shell (1), the lower surface seat of upper valve core (8) is on the upper surface of bottom spool (9), the upper surface of upper valve core (8) is held out against by the lower surface of top connection (4).
2. a kind of hydraulic control bivalve valve according to claim 1, is characterized in that: described upper valve core (8) and bottom spool (9) form by interior sealing drum (13), external seal cylinder (12), flap (14), torsion spring (15), bearing pin (16) and sealing ring (17); The threaded upper ends of described external seal cylinder (12) is sleeved on spacer ring (11), interior sealing drum (13) is sleeved in external seal cylinder (12), and is provided with sealing ring (17) between interior sealing drum (13) and external seal cylinder (12); Described bearing pin (16) is fixed on the side, middle part of external seal cylinder (12), described flap (14) is hinged on bearing pin (16), described torsion spring (15) is sleeved on bearing pin (16), and one end of torsion spring (15) acts on the outside of flap (14), the other end is installed on external seal cylinder (12), makes flap (14) under the effect of torsion spring (15), have the trend of inwardly rotating around straight pin (16) all the time.
3. a kind of hydraulic control bivalve valve according to claim 1 and 2, is characterized in that: the upper port of described sliding sleeve (7) is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411591.1U CN204877381U (en) | 2015-06-15 | 2015-06-15 | Two clack valves of liquid accuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411591.1U CN204877381U (en) | 2015-06-15 | 2015-06-15 | Two clack valves of liquid accuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877381U true CN204877381U (en) | 2015-12-16 |
Family
ID=54821764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520411591.1U Active CN204877381U (en) | 2015-06-15 | 2015-06-15 | Two clack valves of liquid accuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929576A (en) * | 2015-06-15 | 2015-09-23 | 宝鸡市赛孚石油机械有限公司 | Hydraulic-control dual-clack valve |
| CN110173233A (en) * | 2019-06-11 | 2019-08-27 | 西安石油大学 | A kind of storm valve |
-
2015
- 2015-06-15 CN CN201520411591.1U patent/CN204877381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929576A (en) * | 2015-06-15 | 2015-09-23 | 宝鸡市赛孚石油机械有限公司 | Hydraulic-control dual-clack valve |
| CN110173233A (en) * | 2019-06-11 | 2019-08-27 | 西安石油大学 | A kind of storm valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 721306 Gaoxin 19 Road, Baoji high tech Development Zone, Shaanxi Province Patentee after: Baoji Saifu Petroleum Machinery Co.,Ltd. Country or region after: China Address before: 721013 Nineteenth High-tech Road, Baoji High-tech Zone, Shaanxi Province Patentee before: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |