CN202914036U - Gas-tight underground safety valve of side hole control valve - Google Patents
Gas-tight underground safety valve of side hole control valve Download PDFInfo
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- CN202914036U CN202914036U CN 201220567154 CN201220567154U CN202914036U CN 202914036 U CN202914036 U CN 202914036U CN 201220567154 CN201220567154 CN 201220567154 CN 201220567154 U CN201220567154 U CN 201220567154U CN 202914036 U CN202914036 U CN 202914036U
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- hermetic seal
- valve plate
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- 238000007789 sealing Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 39
- 210000000664 rectum Anatomy 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 54
- 239000003921 oil Substances 0.000 description 10
- 238000011084 recovery Methods 0.000 description 9
- 239000000945 filler Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 101000587430 Homo sapiens Serine/arginine-rich splicing factor 2 Proteins 0.000 description 1
- 102100029666 Serine/arginine-rich splicing factor 2 Human genes 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
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Abstract
The utility model discloses an airtight subsurface safety valve of side opening control valve mainly comprises top connection, piston body, barrel, spring, valve plate assembly and lower clutch, and the side of top connection is equipped with the liquid supply hole, the lower extreme threaded connection of top connection has the barrel, the barrel is the cylinder, and the lower extreme of barrel is connected with the lower clutch is installed in the barrel piston body, piston body lower extreme are installed the spring, and are equipped with the valve plate assembly at the barrel lower extreme. Adopt the utility model discloses, at high yield well gas production in-process, can be connected with big latus rectum gas production tubular column in going into the well to produce less tubular column resistance. When the well head breaks down, the gas flow of the pipe column can be instantly closed, and the effect of protecting the well head is achieved.
Description
Technical field
The utility model relates in the high yield production gas technology field, oil field, the storm valve in the high yield gas recovery well gas production tubing string, particularly a kind of hermetic seal storm valve of side opening control valve.
Background technology
In high gas rate well gas production manufacturing process, because the gas well gas production is large, the safety valve that need to match with the gas production flow string: the tubing string hermetic seal connecting thread that requirement matches; Larger gas production latus rectum; Open reliably, close performance; Sealing performance is prevented H2S, CO2 performance and abnormal recovery function reliably reliably.At present, the SC35 of the manufacturer of domestic safety valve such as the development of oil production technology academy of Shengli Oil Field Co., Ltd-120A type storm valve, all be to make storm valve according to international standard, mainly have a following shortcoming: the one, the tubing string screw thread of the safety valve that uses with high-yield well with than Big Moses does not have interchangeability; The 2nd, do not satisfy the larger latus rectum requirement of requirement of high-yield well gas producing technology, (be generally latus rectum in the flow string standard, take 7 " sleeve pipe is 71.4 millimeters as the example maximum diameter).The 3rd, the nonreactive sulphuring treatment can not be satisfied anti-height and contain H2S, CO2 performance.The 4th, because causing safety valve, sealing ring inefficacy, hydraulic fitting hydraulic oil seepage etc. close, without effective remedial measure.The 5th, when safety valve was opened, equalizing valve gas balance was slow, did not reach the requirement of transient equilibrium pressure.
Summary of the invention
For solving the existing technical problem of above-mentioned prior art, the utility model proposes a kind of hermetic seal storm valve of side opening control valve, adopt the utility model, in high-yield well gas production process, G.I.H can be connected with large latus rectum gas production tubing string, and produces less tubing string resistance.When well head broke down, the instantaneous gas flow of closing tubing string of energy had played the effect of protection well head.
The utility model is by adopting following technical proposals to realize;
A kind of hermetic seal storm valve of side opening control valve, it is characterized in that: mainly formed by top connection, piston body, cylindrical shell, spring, valve plate assembly and lower contact, the side of top connection is provided with the feed flow hole, the lower end screw thread of described top connection is connected with described cylindrical shell, described cylindrical shell is cylindrical shape, and the lower end of cylindrical shell is connected with described lower contact, and described piston body is installed in cylindrical shell, the piston body lower end is equipped with described spring, and in the cylindrical shell lower end valve plate assembly is housed.
Described top connection upper end is provided with the hermetic seal screw thread, and the screw thread of lower contact is the hermetic seal screw thread.
Described inner barrel is provided with hydraulic cavities, and the piston body bottom is equipped with pusher body, and the bar recovery instrument of throwing is installed on the cylindrical shell.
Described valve plate assembly comprises valve plate, valve seat, bearing pin, torsion spring and 3 uniform stainless steel ball equalizing valves, and described valve plate contacts with the valve seat linear sealing through torsion spring, and described 3 equalizing valves are distributed on the periphery of valve seat, and the valve seat end face is provided with straight hole and communicates with equalizing valve.
Large 4.6 millimeters than the diameter of 71.4 millimeters safety valves of general international standard of the diameter of bores of described top connection and lower contact.
Compared with prior art, the beneficial effects of the utility model show:
1, in the utility model, adopt the hermetic seal storm valve of the side opening control valve of top connection, piston body, cylindrical shell, spring, valve plate assembly and lower contact formation, in high-yield well gas production process, G.I.H can be connected with large latus rectum gas production tubing string, and produces less tubing string resistance.The hermetic seal storm valve of side opening control valve is connected on 400 meters of gas production tubing string; the upper end is connected with the lower contact of air collecting pipe, and the lower end is connected with the single top connection of gas production tubing string, and effect is that well head is when breaking down; instantaneous gas flow of closing tubing string plays the effect of protection well head.
2, in the utility model, the top connection upper end is provided with the hermetic seal screw thread, the screw thread of lower contact is the hermetic seal screw thread, large 4.6 millimeters than the diameter of 71.4 millimeters safety valves of general international standard of the diameter of bores of top connection and lower contact, the tubing string screw thread of the safety valve that such technical scheme can be used with high-yield well with than Big Moses has interchangeability; Satisfied the larger latus rectum requirement of requirement of high-yield well gas producing technology.
3, in the utility model, described inner barrel is provided with hydraulic cavities, and the piston body bottom is equipped with pusher body, and the bar recovery instrument of throwing is installed on the cylindrical shell.When safety valve because of leakage failures such as seals, when valve plate lost efficacy and to close, can throw bar by well head and recover instrument, realize the permanent unlatching of valve plate.Simultaneously, top connection endoporus, piston body centre bore, lower contact endoporus are carried out spray treatment, prevent the corrosion of the gases such as H2S.
4, in the utility model, in the cylindrical shell lower end valve plate assembly is housed, effect is safety valve in the situation that valve plate is closed, bear from gas reservoir than atmospheric pressure, when opening valve plate, the ejector sleeve body of piston body moves down, at first promoting 3 equalizing valve steel balls moves radially, link up lower channel on the safety valve valve plate this moment, and gas enters end spaces on the safety valve valve plate under pressure action, because 3 equalizing valves produce larger runner, transient equilibrium tubing string pressure reduction up and down, under less pressure reduction, the ejector sleeve of piston body promotes valve plate and normally opens.
Description of drawings
Fig. 1 is the utility model generalized section.
Fig. 2 is that the utility model is thrown bar recovery instrument generalized section.
Mark among the figure:
The specific embodiment
Embodiment 1: take the hermetic seal storm valve of a side opening control valve as example, the utility model is described in further detail.
Consult Fig. 1.The hermetic seal storm valve of this practical side opening control valve, mainly formed by top connection 1, piston body 2, cylindrical shell 3 and spring 4, valve plate assembly 5, lower contact 6, throwing bar 7, top connection 1 upper end has the hermetic seal screw thread to link to each other with the gas production tubing string, there is oil supplying hole the side of top connection 1, lower contact 6 has the hermetic seal thread, external thread, it is characterized in that: in the upper end of top connection 1 the hermetic seal internal thread is arranged, inner barrel has hydraulic cavities, piston body 2, Compress Spring is arranged at the piston bottom, the ejector sleeve body is arranged at the piston bottom, the valve plate assembly is arranged at the cylindrical shell bottom, has the bar instrument 7 of throwing.Assemble sequence is: top connection 1-piston body 2-spring 4-cylindrical shell 3-valve plate assembly 5-lower contact 6.Operating principle is: the ground hydraulic system injects hydraulic oil by the oil filler point of top connection 1 under certain pressure, and pushing piston body 2, piston push rod body promote 5 valve plates of valve plate assembly and open, and realize normal gas production operation.The faults such as leakage occur when gas production wellhead, and in the time of need to closing the gas production tubing string, sensing device is under the control of ground control system, realize releasing pressure automatically, the piston ejector sleeve body of rod moves up under the telescopic action of spring 4, and the valve plate autoshutdown realizes cutting off the purpose of source of the gas.
When safety valve because of leakage failures such as seals, when valve plate lost efficacy and to close, can drop into recovery instrument 7 by well head, realize the permanent unlatching of valve plate, simultaneously, seal nipple and piston body center are prevented the H2S spray treatment, 149 millimeters of safety valve external diameters.76 millimeters of interior latus rectums.
A kind of hermetic seal storm valve of side opening control valve, mainly formed by top connection, piston body, cylindrical shell, spring, valve plate assembly and lower contact, the side of top connection is provided with the feed flow hole, the lower end screw thread of described top connection is connected with described cylindrical shell, described cylindrical shell is cylindrical shape, and the lower end of cylindrical shell is connected with described lower contact, and described piston body is installed in cylindrical shell, the piston body lower end is equipped with described spring, and in the cylindrical shell lower end valve plate assembly is housed.
Preferred forms of the present utility model is as follows: a kind of hermetic seal storm valve of side opening control valve, in high-yield well gas production process, G.I.H can be connected with large latus rectum gas production tubing string, and produces less tubing string resistance.The hermetic seal storm valve of side opening control valve is connected on 400 meters of gas production tubing string; the upper end is connected with the lower contact of air collecting pipe, and the lower end is connected with the single top connection of gas production tubing string, and effect is that well head is when breaking down; instantaneous gas flow of closing tubing string plays the effect of protection well head.
The utility model provides a kind of hermetic seal storm valve of side opening control valve, the ground hydraulic system is arranged by top connection 1 oil filler point, oiling under certain pressure, pushing piston body 2, the piston push rod body promotes valve plate assembly 6 valve plates, and valve plate is opened, and realizes normal gas production operation.When the faults such as gas production wellhead generation leakage, need to close the gas production tubing string, the ground control decorum, releasing pressure automatically, piston push rod body move up under the effect of spring 5, and the valve plate autoshutdown realizes cutting off the purpose of source of the gas.
The utility model: a kind of 3 equalizing valves that are distributed on the valve seat periphery that have are provided, can have realized the safety valve valve plate in the situation that bear than atmospheric pressure, transient equilibrium tubing string pressure reduction up and down, the realization valve plate is normally opened.
The utility model: provide a kind of when leaking because of faults such as seals, valve plate lost efficacy and closed, and can drop into bar instrument 7 by well head, realized the permanent unlatching of valve plate.
The technical solution adopted in the utility model is: a kind of hermetic seal storm valve of side opening control valve mainly is comprised of top connection 1, piston body 2, cylindrical shell 3 and spring 4, valve plate assembly 5, lower contact 6, through rod 7, there is the hermetic seal screw thread top connection 1 upper end, the side of top connection 1 has the feed flow hole, it is characterized in that: in the upper end of top connection 1 the hermetic seal external screw thread is arranged, inner barrel has hydraulic cavities, piston body 2, Compress Spring is arranged at the piston bottom, pusher body is arranged at the piston bottom, cylindrical shell is equipped with the valve plate assembly, has the bar recovery instrument 7 of throwing.The lower end screw thread of top connection 1 is connected with cylindrical shell 2, and cylindrical shell 2 is cylindrical shape, and the lower end of cylindrical shell 2 is connected with hermetic seal lower contact 6; Piston body 2 is arranged in cylindrical shell 3, and spring 4 is equipped with in the piston body lower end, and valve plate assembly 5 is equipped with in the cylindrical shell lower end, and the bottom is connected with lower contact 6, and the lower contact screw thread is the hermetic seal screw thread.When safety valve because of leakage failures such as seals, when valve plate lost efficacy and to close, can drop into recovery instrument 7 by well head, realize the permanent unlatching of valve plate, simultaneously, seal nipple and piston body central tube are prevented H
2The S spray treatment.
Sketch a kind of hermetic seal storm valve principle of side opening control valve.Consult Fig. 1.The ground hydraulic system is by the oil filler point of top connection 1, oiling under certain pressure, and pushing piston body 2, piston push rod body promote 5 valve plates of valve plate assembly and open, and realize normal gas production operation.The faults such as leakage occur when gas production wellhead, and in the time of need to closing the gas production tubing string, sensing device is realized releasing pressure automatically under the control of ground control system, and the piston push rod body moves up under the telescopic action of spring 4, and the valve plate autoshutdown realizes cutting off the purpose of source of the gas.When safety valve because of leakage failures such as seals, when valve plate lost efficacy and to close, can drop into bar instrument 7 by well head, realize the permanent unlatching of valve plate.
Sketch a kind of hermetic seal storm valve using method of side opening control valve
1. a kind of hermetic seal storm valve of side opening control valve is installed in apart from 400 meters at well head with on the interior gas production tubing string, at the oil filler point interface of safety valve top connection, be connected on the safety valve oil filler point interface by steel hydraulic line one end of attachment cap with 8 millimeters of diameter Ф.The other end is connected to the hydraulic control system on ground by well head, simultaneously pipeline is fixed on the gas production tubing string.
2. when gas well began gas production, the ground hydraulic system injected hydraulic oil by the oil filler point of top connection 1 under certain pressure, and pushing piston body 2, piston push rod body promote 5 valve plates of valve plate assembly and open, and realize normal gas production operation.The faults such as leakage occur when gas production wellhead, and in the time of need to closing the gas production tubing string, sensing device is under the control of ground control system, realize releasing pressure automatically, the piston ejector sleeve body of rod moves up under the telescopic action of spring 4, and the valve plate autoshutdown realizes cutting off the purpose of source of the gas.
3. work as safety valve because of leakage failures such as seals, valve plate lost efficacy when closing, and can drop into bar instrument 7 by well head, realized the permanent unlatching of valve plate.
The beneficial effects of the utility model: the hermetic seal storm valve of this practical side opening control valve, it is the effective tool of high gas rate well tubing string control security risk, 3 equalizing valve designs that are distributed on the valve seat periphery, can realize the safety valve valve plate in the situation that bear than atmospheric pressure, transient equilibrium tubing string pressure reduction up and down, the realization valve plate is normally opened.The faults such as leakage occur when gas production wellhead, and in the time of need to closing the gas production tubing string, sensing device is realized releasing pressure automatically under the control of ground control system, and the valve plate autoshutdown realizes cutting off the purpose of source of the gas.Has the tubing string hermetic seal connecting thread that matches; Larger gas production latus rectum; Open reliably, close performance; Sealing performance is prevented H2S, CO2 performance and abnormal recovery function reliably reliably.
Claims (5)
1. the hermetic seal storm valve of a side opening control valve, it is characterized in that: mainly by top connection (1), piston body (2), cylindrical shell (3), spring (4), valve plate assembly (5) and lower contact (6) form, the side of top connection (1) is provided with the feed flow hole, the lower end screw thread of described top connection (1) is connected with described cylindrical shell (3), described cylindrical shell (3) is cylindrical shape, the lower end of cylindrical shell (3) is connected with described lower contact (6), described piston body (2) is installed in cylindrical shell (3), piston body (2) lower end is equipped with described spring (4), and in cylindrical shell (3) lower end valve plate assembly (5) is housed.
2. the hermetic seal storm valve of side opening control valve according to claim 1 is characterized in that: described top connection (1) upper end is provided with the hermetic seal screw thread, and the screw thread of lower contact (6) is the hermetic seal screw thread.
3. the hermetic seal storm valve of side opening control valve according to claim 1, it is characterized in that: described cylindrical shell (3) inside is provided with hydraulic cavities, and piston body (2) bottom is equipped with pusher body, is equipped with on the cylindrical shell (3) to throw bar and recover instrument (7).
4. the hermetic seal storm valve of side opening control valve according to claim 1, it is characterized in that: described valve plate assembly (5) comprises valve plate, valve seat, bearing pin, torsion spring and 3 uniform stainless steel ball equalizing valves, described valve plate contacts with the valve seat linear sealing through torsion spring, described 3 equalizing valves are distributed on the periphery of valve seat, and the valve seat end face is provided with straight hole and communicates with equalizing valve.
5. the hermetic seal storm valve of side opening control valve according to claim 1 is characterized in that: large 4.6 millimeters than the diameter of 71.4 millimeters safety valves of general international standard of the diameter of bores of described top connection (1) and lower contact (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567154 CN202914036U (en) | 2012-10-31 | 2012-10-31 | Gas-tight underground safety valve of side hole control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567154 CN202914036U (en) | 2012-10-31 | 2012-10-31 | Gas-tight underground safety valve of side hole control valve |
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| Publication Number | Publication Date |
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| CN202914036U true CN202914036U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220567154 Expired - Lifetime CN202914036U (en) | 2012-10-31 | 2012-10-31 | Gas-tight underground safety valve of side hole control valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821477A (en) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | Self-balancing downhole safety valve |
| CN110735615A (en) * | 2018-07-19 | 2020-01-31 | 中国石油化工股份有限公司 | Two-way anti-backlash valve |
| CN111520105A (en) * | 2020-06-17 | 2020-08-11 | 托普威尔石油技术股份公司 | Downhole safety valve |
| CN111520106A (en) * | 2020-06-17 | 2020-08-11 | 托普威尔石油技术股份公司 | Butt joint device for underground safety valve control pipelines |
| CN114909107A (en) * | 2022-06-16 | 2022-08-16 | 惟其信石油机械(天津)有限公司 | Large-drift-diameter underground safety valve and using method thereof |
-
2012
- 2012-10-31 CN CN 201220567154 patent/CN202914036U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821477A (en) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | Self-balancing downhole safety valve |
| CN103821477B (en) * | 2014-03-17 | 2016-04-13 | 中国石油大学(华东) | Self-balancing storm valve |
| CN110735615A (en) * | 2018-07-19 | 2020-01-31 | 中国石油化工股份有限公司 | Two-way anti-backlash valve |
| CN111520105A (en) * | 2020-06-17 | 2020-08-11 | 托普威尔石油技术股份公司 | Downhole safety valve |
| CN111520106A (en) * | 2020-06-17 | 2020-08-11 | 托普威尔石油技术股份公司 | Butt joint device for underground safety valve control pipelines |
| CN114909107A (en) * | 2022-06-16 | 2022-08-16 | 惟其信石油机械(天津)有限公司 | Large-drift-diameter underground safety valve and using method thereof |
| CN114909107B (en) * | 2022-06-16 | 2024-03-01 | 惟其信石油机械(天津)有限公司 | Large-drift-diameter underground safety valve and use method thereof |
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| GR01 | Patent grant | ||
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Granted publication date: 20130501 |
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| CX01 | Expiry of patent term |