CN2670707Y - Casing gas recovering one way valves - Google Patents
Casing gas recovering one way valves Download PDFInfo
- Publication number
- CN2670707Y CN2670707Y CNU032764103U CN03276410U CN2670707Y CN 2670707 Y CN2670707 Y CN 2670707Y CN U032764103 U CNU032764103 U CN U032764103U CN 03276410 U CN03276410 U CN 03276410U CN 2670707 Y CN2670707 Y CN 2670707Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- baffle plate
- cylindrical body
- valve seat
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a casing gas recovering one way valve. The conical part of a valve body is formed with a valve ball bin, the right end of the valve body is an air inlet, and a cylinder at right part is provided with a step which is abutted with a baffle plate. The baffle plate is provided with four holes for the circulation of airflow. The left part of a valve cover is provided with a carrier rod for pressing the baffle plate. A circular disc is matched with a valve seat, the valve cover head at right part is a square body which is convenient to pull by a spanner for loading and unloading, and the valve ball bin and the gas bin of the valve seat can be cleaned. The structure must be installed upright, block can backflow can be prevented, and casing gas in a pumping well can be recovered safely.
Description
Technical field
The utility model relates to a kind of sleeve pipe gas and reclaims one-way valve, belongs to the technical field of pumping well equipment and valve.
Background technique
Existing well casing gas reclaims one-way valve often air flue, blocks easily and gas is flow backwards, and comparatively bother during installation and maintenance, and the oil well low for air pressure especially can not be suitable for.
Summary of the invention
The purpose of this utility model is to provide a kind of sleeve pipe gas to reclaim one-way valve, it can overcome above-mentioned shortcoming, can prevent that not only the crude oil that is recovered to the gas of gas main line and the pipeline that enters the station from flowing back to the lower oil well of air pressure, this one-way valve can play good effect aspect crude oil production.
The structure that sleeve pipe gas reclaims one-way valve is that valve seat 1 left part is a cylindrical body, after extending a cone 12 to the right, extend the bigger cylindrical body of a diameter 13 more to the right, the left end of valve seat 1 is a suction port 7, cone 12 part inner chambers are valve ball storehouses 2, the cylindrical body 13 of right part has an air outlet 4, the inner chamber of cylindrical body 13 has a step 14 and internal thread 15, and step 14 left sides are gas storehouses 3, and valve ball 8 places in the valve ball storehouse 2, the end face of baffle plate 5 and step 14 are fitted, valve gap 6 is screwedly mounted on screw thread 18 in the cylindrical body 13 of valve seat 1, and the middle part of valve gap 6 is discs 10, and its outer rim has screw thread 18, left part is connected with a push rod 9, and right part is connected with a valve gap head 17.The end face of baffle plate 5 is drilled with four holes 16.
The valve advantage that sleeve pipe gas reclaims single current is neither to stop up also not reflux, simple in structure and maintenance and install all easy, in the oil well technological process of recovery of casing gas, install, can prevent that not only the crude oil that is recovered to the gas of gas main line and the pipeline that enters the station from flowing back to the lower oil well of air pressure, can play good effect for the low oil well of air pressure aspect the crude oil production simultaneously.
Description of drawings
Fig. 1. the one-way valve schematic representation
Fig. 2. the valve gap schematic representation
Fig. 3. the baffle plate schematic representation
Fig. 4. recovery of casing gas compacts gas main line process flow diagram
Fig. 5. the recovery of casing gas process flow diagram that enters the station
By Fig. 1, valve seat 1 left part is a cylindrical body, extend a cone 12 to the right after, extend the bigger cylindrical body of a diameter 13 more to the right, the left end of valve seat 1 is a suction port 7, cone 12 part inner chambers are valve ball storehouses 2, and the cylindrical body 13 of right part has an air outlet 4, and the inner chamber of cylindrical body 13 has a step 14 and internal thread 15, step 14 left sides are gas storehouses 3, valve ball 8 places in the valve ball storehouse 2, and the end face of baffle plate 5 and step 14 are fitted, and valve gap 6 is screwedly mounted in the cylindrical body 13 of valve seat 1 with screw thread 18.
By Fig. 2, the middle part of valve gap 6 is discs 10, and its outer rim has screw thread 18, and left part is connected with a push rod 9, and right part is connected with a valve gap head 17, and mills into square body, so that use the spanner dismounting.
By Fig. 3, the end face of baffle plate 5 is drilled with four holes 16, so that the sleeve pipe air-flow goes out.
By Fig. 4,5, one-way valve 21 is vertically installed, suction port 7 is connected with casing pressure gate 24, master valve 26 is connected with 25 with casing pressure gate 24 respectively, be connected with oil pressure gate 22 with the gate 23 that enters the station again simultaneously, gas collecting main is connected (Fig. 4) or is connected (Fig. 5) with the gate 23 that enters the station with the air outlet 6 of one-way valve 21.
Mode of execution
The lower end of valve seat 1 is 1/2 box, be connected between oil well test valve and the sleeve gate by 1/2 pin thread, perhaps be connected between sleeve gate and the gas main line, valve ball 8 be contained between valve seat 1 and the baffle plate 5 and the gap bigger, guaranteed the up and down very nimble of steel ball, the metalware that other need not be installed utilizes the deadweight of valve ball 8 and the back pressure of sleeve pipe gas to contact with valve seat, reach sealing and the unimpeded purpose of gas, and be difficult for breaking down.The right part of valve gap 6 mills squarely and is convenient to installation and removal with spanner, can clear up the dirt impurity that the inner chambers of valve seat 1 are piled up after unloading lower pedal 5 and valve ball 8.When oil well casing pressure during greater than Oil Well Back Pressure, open the gate that oil well casing lock and one-way valve valve seat 1 connect, whether have gas leak phenomenon, open Oil Well Back Pressure gate or air inlet main line gate then if observing casing pressure; When casing pressure during greater than back pressure, well casing gas backs down steel ball 8 in the one-way valve 21 by self pressure, by 4 holes 16 on the baffle plate 5, enters the main line of oil well recovery of casing gas; When oil well casing pressure was lower than Oil Well Back Pressure, steel ball 8 was sitting on the cone seal storehouse in the valve seat 1 by self weight and Oil Well Back Pressure, and then has avoided the phenomenon that the sleeve pipe gas in the main line flows backwards and oil well crude oil refluxes generation.
The choke steel ball 8 that the suction port 7 of underground bushing gas by one-way valve 1 backs down in the valve ball storehouse 2 enters valve ball storehouse 2, behind the baffle plate ventilating hole 16 through gas storehouse 3 and baffle plate 5,4 enters into gas collecting main or the pipeline that enters the station from the air outlet again; When the air pressure in the gas collecting main or Oil Well Back Pressure were higher than individual well sleeve pipe gas air pressure, choke steel ball 8 just dropped into the fitting surface place in valve ball storehouse 2, tightly air flue is blocked, and has prevented the refluence of gas or crude oil.
In this structure, the screw thread on the valve seat closely links to each other with the closed surface of valve gap 6, can prevent leaking of gas, gas baffle 5 be placed on air outlet 4 below, tightly withstood by valve gap push rod 9 above so that anti-baffle plate is loosening.
Claims (2)
1. a sleeve pipe gas reclaims one-way valve, it is characterized in that valve seat (1) left part is a cylindrical body, after extending a cone (12) to the right, extend the bigger cylindrical body of a diameter (13) more to the right, the left end of valve seat (1) is a suction port (7), cone (12) part inner chamber is a valve ball storehouse (2), the cylindrical body of right part (13) has an air outlet (4), the inner chamber of cylindrical body (13) has a step (14) and internal thread (15), step (14) left side is a gas storehouse (3), valve ball (8) places in the valve ball storehouse (2), and the end face of baffle plate (5) and step (14) are fitted, and valve gap (6) is screwedly mounted in the cylindrical body (13) of valve seat (1) with screw thread (18), the middle part of valve gap (6) is disc (10), its outer rim has screw thread (18), and left part is connected with a push rod (9), and right part is connected with a valve gap head (17).
2. one-way valve according to claim 1 is characterized in that the end face of baffle plate (5) is drilled with four holes (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032764103U CN2670707Y (en) | 2003-08-21 | 2003-08-21 | Casing gas recovering one way valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032764103U CN2670707Y (en) | 2003-08-21 | 2003-08-21 | Casing gas recovering one way valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670707Y true CN2670707Y (en) | 2005-01-12 |
Family
ID=34473709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032764103U Expired - Fee Related CN2670707Y (en) | 2003-08-21 | 2003-08-21 | Casing gas recovering one way valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670707Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794399A (en) * | 2017-11-16 | 2019-05-24 | 株式会社迪思科 | Liquid provides unit |
-
2003
- 2003-08-21 CN CNU032764103U patent/CN2670707Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794399A (en) * | 2017-11-16 | 2019-05-24 | 株式会社迪思科 | Liquid provides unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |