CN202493240U - Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set - Google Patents
Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set Download PDFInfo
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- CN202493240U CN202493240U CN2011204446545U CN201120444654U CN202493240U CN 202493240 U CN202493240 U CN 202493240U CN 2011204446545 U CN2011204446545 U CN 2011204446545U CN 201120444654 U CN201120444654 U CN 201120444654U CN 202493240 U CN202493240 U CN 202493240U
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Abstract
The utility model relates to an antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set, comprising a pressure-stabilizing and gas discharging valve and a casing pipe gas discharging tee joint. The pressure-stabilizing and gas discharging valve comprises a hand wheel, a hollow adjusting rod, a seal steel ball, a spring seat, a valve body and a reducing joint. The valve body is in threaded connection with the reducing joint; a central hole of the valve body is in threaded connection with the hollow adjusting rod; the spring seat is in threaded connection with the valve body; the spring seat is provided with a spring; the seal steel ball is disposed on the spring; the valve body is provided with a gas inlet in the radial direction; the gas inlet is in threaded connection with a union head and is connected with a high pressure pipe; the high pressure pipe is connected with the casing pipe gas discharging tee joint through a union; the hollow adjusting rod is provided with four small gas inlet holes in the radial direction corresponding to the gas inlet; and the front end of the valve body is provided with small gas discharging holes. The pressure-stabilizing and gas discharging valve and a single well crude oil pipeline are arranged based on a minimum range, and thus problems of freeze and blockage are solved. The pressure of gas in a casing pipe maintains a set level automatically and thus the yield of crude oil of an oil well is increased.
Description
Technical field
The utility model belongs to discharging of natural gas constant voltage and retracting device in the producing well sleeve pipe, relates in particular to a kind of anti-freeze type level pressure venting oil recovery composite set.
Background technology
Sleeve pipe vent valve in the known producing well sleeve pipe in discharging of natural gas constant voltage and the retracting device is equipped with antifreeze mechanism and Prossure fixing mechanism.When the sleeve pipe internal pressure is higher than the pressure of setting, sleeve pipe vent valve discharging natural gas.When natural gas discharged, vent valve flap place gas was in step-down throttling and heat absorption state, is easy to freeze stifled phenomenon.Having that the means to prevent freezing that adopts at present is known is a variety of.Such as: outer lag companion heat; Add heating companion heat; Mix hotwater tracing or the like.These methods all have certain effect.But said method not only causes the cost of vent valve to increase, and is unfavorable for execute-in-place and management; Cause very big difficulty to the user; Even when sleeve pipe tolerance is big, do not reach the effect of companion's heat, cause sleeve pipe to build the pressure; Can't reclaim natural gas, also cause the consequence of the underproduction even stopping production to oil well.
The utility model content
The utility model is in order to overcome deficiency of the prior art, and a kind of anti-freeze type level pressure venting oil recovery composite set is provided, and it is stifled to prevent that valve discharging gas under certain pressure from freezing; Pressure that can online investigation mission outside the city or town sleeve pipe gas, and make casing pressure automatic stabilisation under the pressure of setting, reach the purpose that improves the oil well crude output.
The utility model is realized through following technical scheme for realizing above-mentioned purpose, a kind of anti-freeze type level pressure venting oil recovery composite set; It is characterized in that: comprise valve discharging gas under certain pressure and sleeve pipe venting threeway, said valve discharging gas under certain pressure comprises handwheel, hollow adjusting rod, sealed steel ball, spring base, valve body and reducer union, and said valve body and reducer union are threaded; Said valve body centre bore is threaded with the hollow adjusting rod, and said spring base is threaded with valve body, on the said spring base spring is housed; Be equipped with sealed steel ball on the spring, said valve body radially is provided with air inlet port, and said air inlet port is bolted with the union head; Be connected with high-voltage tube through union head and union; Said high-voltage tube is connected with sleeve pipe venting threeway through union, and the corresponding air inlet port of said hollow adjusting rod place radially is provided with four air inlet apertures, and said valve body front end is provided with the venting aperture.
Said valve discharging gas under certain pressure parallel sidewalls centre bore vertically is provided with the water mixing pipeline, and said water mixing pipeline one end radially is provided with the water mixing import, the said water mixing import plug that is threaded.
Said sleeve pipe venting sidewall radially is provided with and connects the table screwed hole, and the pressure meter that has been threaded.
Said high-voltage tube adopts high-pressure rubber pipe or steel pipe.
Beneficial effect: valve discharging gas under certain pressure and individual well crude oil pipeline adopt the position of minimum distance to install, and prevent to freeze stifled phenomenon and produce.The whole series of can onlinely transfering to other localities are simultaneously managed the pressure of gas, and make casing pressure automatic stabilisation under the pressure of setting, and reach the purpose that improves the oil well crude output; Natural gas in can recovery of casing, generating or heating reach the purpose of energy-saving and emission-reduction, have good economic benefits and good social benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the utility model is installed in the sketch map on the crude oil pipeline.
Among the figure: 1, saddle-shaped seam, 2, spring base, 3, spring, 4, the venting aperture, 5, sealed steel ball; 6, sealing ring, 7, screw thread, 8, the water mixing pipeline, 9, the plug that is spirally connected, 10, the air inlet aperture; 11, valve body, 12, reducer union, 13, the hollow adjusting rod, 14, handwheel, 15, the union joint; 16, movable union, 17, gasket seal, 18, high-pressure rubber pipe, 19, sleeve pipe outlet closing head; 20, sleeve pipe venting threeway, 21, connect the table screwed hole, 22, pressure meter, 23, the outlet of sleeve pipe venting threeway.
The specific embodiment
Below in conjunction with preferred embodiment, details are as follows to the specific embodiment that provides according to the utility model: see accompanying drawing for details, a kind of anti-freeze type level pressure venting oil recovery composite set; Comprise valve discharging gas under certain pressure and sleeve pipe venting threeway, said valve discharging gas under certain pressure comprises handwheel 14, hollow adjusting rod 13, sealed steel ball 5, spring base 2, valve body 11 and reducer union 12, and said valve body is threaded with reducer union through screw thread 7; Said valve body centre bore is threaded with the hollow adjusting rod; Said spring base is threaded with valve body, and spring 3 is housed on the said spring base, is equipped with sealed steel ball on the spring; Said valve body radially is provided with air inlet port; The said air inlet port union head that has been threaded is connected with high-voltage tube through union head and union, and said high-voltage tube is connected through the threeway of exitting of union and sleeve pipe; The corresponding air inlet port of said hollow adjusting rod place radially is provided with four air inlet apertures 10, and said valve body front end is provided with venting aperture 4.Said valve discharging gas under certain pressure parallel sidewalls centre bore vertically is provided with water mixing pipeline 8, and said water mixing pipeline one end radially is provided with the water mixing import, the said water mixing import plug 9 that is spirally connected, and the water mixing import is the time spent not, and plug can be installed; During water mixing, can insert water pipeline if desired, hot water can get near the vent valve spring base through the duct that is communicated with the water mixing import.Said sleeve pipe venting sidewall radially is provided with and connects table screwed hole 21, and the pressure meter 22 that has been threaded.Valve discharging gas under certain pressure and individual well crude oil pipeline adopt saddle-shaped seam 1, can guarantee that both install with the position of minimum distance, and the structure of this device then can prevent to freeze stifled phenomenon and produce.Sleeve pipe venting threeway and well recovery tree sleeve gate are through clamp connection.Adjusting rod and valve body contact portion are by sealing ring 6 sealings, and there have screw thread to regulate between adjusting rod and the valve body to be mobile, make spring produce different deflections.Said high-voltage tube adopts high-pressure rubber pipe or steel pipe.
The level pressure principle: well casing gas gets into sleeve pipe venting threeway 20 through sleeve pipe outlet closing head 19, and at this moment, pressure meter shows the pressure of sleeve pipe gas.Sleeve pipe gas gets into high-pressure rubber pipe 18 from the outlet 23 of sleeve pipe venting threeway 20.The two ends of high-pressure rubber pipe 18 are connected with sleeve pipe venting threeway 20 with described valve discharging gas under certain pressure air inlet 10 respectively through union joint 15, movable union 16 and gasket seal 17.
Behind the adjusting rod 13 of sleeve pipe gas through the air inlet 10 entering hollows of vent valve, produce pressure in the side of steel ball 5, the elastic force of spring 3 is born in another side of steel ball 5.When deflection one timing of spring 3, its elastic force is also certain.At this moment, if when the sleeve pipe atmospheric pressure is increased to above spring force, steel ball 5 just leaves adjusting rod, and sleeve pipe gas is just discharged from the adjusting rod end face, and is discharged in the oil pipeline through exhaust hole on the valve body 4 and holes in the middle of the spring base 2.If the pressure of sleeve pipe gas is during less than the elastic force of spring, steel ball is got back to the end face of adjusting rod again, stops exclusion sleeve gas.Make constant always the size of pressure of sleeve pipe gas, reach the purpose of constant voltage venting at spring force.Sleeve pipe gas mixes conveying with crude oil after getting into oil pipeline, reaches the purpose of recovery.The handwheel on valve discharging gas under certain pressure top, handwheel is connected through fixed screw with the adjusting rod of hollow.
Antifreeze principle:
Sleeve pipe gas does not have pressure to descend before touching valve discharging gas under certain pressure steel ball 5, the heat absorption phenomenon can not be arranged, so can not freeze stifled yet yet.When sleeve pipe gas discharges, form the torus knot discharge orifice between the end face of steel ball 5 and adjusting rod 13, not only pressure descends, and the phenomenon of can absorbing heat.At this moment, the produced liquid in oil well in the oil pipeline is enclosed in around the exhaust hole 4, forms thermal field, has stoped the generation of the throttling heat absorption phenomenon of steel ball 5 generations, thereby reaches the purpose of anti-freezing and heat-insulating.
When if the sleeve pipe gas production is big, throttling heat absorption phenomenon is serious.Can lay down water mixing plug 9, connect hot water piping,, directly get into exhaust hole 4, reach the antifreeze purpose of hot water through water mixing duct 8.Valve discharging gas under certain pressure can change the deflection of spring 3, thereby reach different constant pressures through adjusting handle 14 and adjusting rod 13.Valve discharging gas under certain pressure dextrorotation handwheel 14 is on earth the time, and steel ball 5 directly contacts with spring base 2, makes it possess the function of stop valve; No matter valve discharging gas under certain pressure because spring 3 automatically be pressed in steel ball on, makes it have the function of one way valve under which kind of pressure condition.Crude oil in the oil pipeline and the sleeve pipe gas of having discharged can't be got back in the oil well casing.
The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.
Claims (4)
1. anti-freeze type level pressure venting oil recovery composite set is characterized in that: comprise the threeway of exitting of valve discharging gas under certain pressure and sleeve pipe, said valve discharging gas under certain pressure comprises handwheel, hollow adjusting rod, sealed steel ball, spring base, valve body and reducer union; Said valve body and reducer union are threaded, and said valve body centre bore is threaded with the hollow adjusting rod, and said spring base is threaded with valve body; On the said spring base spring is housed; Be equipped with sealed steel ball on the spring, said valve body radially is provided with air inlet port, and said air inlet port is bolted with the union head; Be connected with high-voltage tube through union head and union; Said high-voltage tube is connected with sleeve pipe venting threeway through union, and the corresponding air inlet port of said hollow adjusting rod place radially is provided with four air inlets, and said valve body front end is provided with air vent.
2. anti-freeze type level pressure venting oil recovery composite set according to claim 1; It is characterized in that: said valve discharging gas under certain pressure parallel sidewalls centre bore vertically is provided with the water mixing pipeline; Said water mixing pipeline one end radially is provided with the water mixing import, the said water mixing import plug that is threaded.
3. anti-freeze type level pressure venting oil recovery composite set according to claim 1 and 2 is characterized in that: said sleeve pipe venting sidewall radially is provided with and connects the table screwed hole, and the pressure meter that has been threaded.
4. anti-freeze type level pressure venting oil recovery composite set according to claim 3, it is characterized in that: said high-voltage tube adopts high-pressure rubber pipe or steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204446545U CN202493240U (en) | 2011-11-11 | 2011-11-11 | Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204446545U CN202493240U (en) | 2011-11-11 | 2011-11-11 | Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493240U true CN202493240U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204446545U Expired - Fee Related CN202493240U (en) | 2011-11-11 | 2011-11-11 | Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set |
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| CN (1) | CN202493240U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257255A (en) * | 2015-10-28 | 2016-01-20 | 中国石油天然气股份有限公司 | Plug-in anti-frozen-blocking casing gas recovery device |
| CN110778289A (en) * | 2019-11-06 | 2020-02-11 | 中国石油天然气股份有限公司 | Oil production wellhead device and method capable of recycling casing gas |
| CN111677482A (en) * | 2020-06-17 | 2020-09-18 | 大庆市中瑞燃气有限公司 | High-corrosion high-pressure natural gas well exploitation and full recovery device and method |
| CN112539041A (en) * | 2020-12-02 | 2021-03-23 | 江苏恒达机械制造有限公司 | Gas production wellhead high-pressure valve structure and manufacturing process thereof |
| CN114508322A (en) * | 2020-11-17 | 2022-05-17 | 中国石油天然气股份有限公司 | Pressure regulating gas collecting device for oil well and oil production wellhead structure |
-
2011
- 2011-11-11 CN CN2011204446545U patent/CN202493240U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257255A (en) * | 2015-10-28 | 2016-01-20 | 中国石油天然气股份有限公司 | Plug-in anti-frozen-blocking casing gas recovery device |
| CN105257255B (en) * | 2015-10-28 | 2017-12-01 | 中国石油天然气股份有限公司 | A kind of antifreeze stifled casing gas recovering device of plug-in |
| CN110778289A (en) * | 2019-11-06 | 2020-02-11 | 中国石油天然气股份有限公司 | Oil production wellhead device and method capable of recycling casing gas |
| CN111677482A (en) * | 2020-06-17 | 2020-09-18 | 大庆市中瑞燃气有限公司 | High-corrosion high-pressure natural gas well exploitation and full recovery device and method |
| CN114508322A (en) * | 2020-11-17 | 2022-05-17 | 中国石油天然气股份有限公司 | Pressure regulating gas collecting device for oil well and oil production wellhead structure |
| CN114508322B (en) * | 2020-11-17 | 2024-03-01 | 中国石油天然气股份有限公司 | Pressure-regulating and gas-collecting device for oil well and wellhead structure for oil extraction |
| CN112539041A (en) * | 2020-12-02 | 2021-03-23 | 江苏恒达机械制造有限公司 | Gas production wellhead high-pressure valve structure and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20171111 |