CN2734994Y - Wellhead controller for water injection well - Google Patents
Wellhead controller for water injection well Download PDFInfo
- Publication number
- CN2734994Y CN2734994Y CN 200420059415 CN200420059415U CN2734994Y CN 2734994 Y CN2734994 Y CN 2734994Y CN 200420059415 CN200420059415 CN 200420059415 CN 200420059415 U CN200420059415 U CN 200420059415U CN 2734994 Y CN2734994 Y CN 2734994Y
- Authority
- CN
- China
- Prior art keywords
- injection
- sleeve
- swivel nut
- stop collar
- water injection
- 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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- Sliding Valves (AREA)
Abstract
The utility model relates to a wellhead controller for a water injection well in the process of petroleum exploitation, which comprises a fishing sleeve 4, a seal sleeve 5, an air nozzle 7, a check valve 10, a compressed spring 11, etc., wherein an end cover 1, the fishing sleeve 4 and the seal sleeve 5 are orderly connected. A position limiting sleeve 15, the air nozzle 7 and a positioning screw sleeve 14 are arranged in the seal sleeve 5. The check valve 10 and the compressed spring 11 are arranged in the positioning screw sleeve 14. The utility model realizes double effects of quantification air injection and one-way flow restriction. The phenomenon that sand is carried by stratum air and is ejected outwards after injection stop due to power failure, equipment fault, etc. can be effectively prevented through the action of the interior check valve. Air nozzles with different diameters are selected for controlling the injection amount of the whole well in a quantification mode through the flow restriction action of the air nozzle, and excessive injection and insufficient injection can be prevented. The air nozzle has the advantage of high durability and can be irregularly replaced according to the requirement of the adjustment of an injection distribution amount.
Description
Technical field
The utility model is used for a kind of water injection well well head of oil exploitation process, specifically, is a kind of water injection well well head controller.
Background technology
At present, the water injection well controller that use in the oil field is a lot, and what have use the ground needle valve, and it is what to separate with half sealing core-skin subshell member that preceding self-styled rubber fuse casing component is installed, and is connected as a single entity during installation; Making the above and below is half sealing core-skin on plane, half sealing core-skin is extruding with gland, leading screw overcoat cooperation place, but the double effects that does not possess quantitative gas injection and one-way throttle, causing easily that reasons such as power failure, equipment fault cause stops annotating the phenomenon that stratum, back gas is taken the sand guest performer.
Summary of the invention
The purpose of this utility model is to provide a kind of double effects of having realized quantitative gas injection and one-way throttle, effect by inner ball-and-seat, can prevent from effectively to stop annotating the phenomenon that stratum, back gas is taken the sand guest performer because of reasons such as power failure, equipment fault cause, throttling action by valve, select the valve of different-diameter can quantitatively control full well injection rate, avoid the super generation of annotating, shorting phenomenon, valve is durable in use, and can irregularly change according to the needs of injection allocation amount adjustment, and changes water injection well well head controller easily.
The utility model is achieved in that and comprises end cap 1, O shape circle 2, threeway 3, fishing sleeve 4, sealing shroud 5, O shape circle 6, gas jets 7, O shape circle 8, seal 9, ball-and-seat 10, stage clip 11, landing nipple 12, sealing sheath ring 13, location swivel nut 14, stop collar 15, end cap 1 is arranged in the threeway 3, fishing sleeve 4, sealing shroud 5, end cap 1, fishing sleeve 4, sealing shroud 5 connects successively, the endoporus of sealing shroud 5 is provided with stop collar 15, gas jets 7, location swivel nut 14, between location swivel nut 14 and the stop collar 15 seal 9 is housed, sealing sheath ring 13, be provided with ball-and-seat 10 in the swivel nut 14 of location, stage clip 11, landing nipple 12 are enclosed within on the swivel nut 14 of location.
Gas jets 7 is connected with stop collar 15, and location swivel nut 14 is connected with stop collar 15
Stage clip 11 is connected with ball-and-seat 10
O shape circle 2 is arranged between threeway 3 and the end cap 1, O shape circle 8 is arranged between threeway 3 and the sealing shroud 5, between sealing shroud 5 and the gas jets 7, be provided with O shape between stop collar 15 and the gas jets 7 and enclose 6.
The utility model ground advantage is: the double effects of having realized quantitative gas injection and one-way throttle, effect by inner ball-and-seat, can prevent from effectively to stop annotating the phenomenon that stratum, back gas is taken the sand guest performer because of reasons such as power failure, equipment fault cause, throttling action by valve, select the valve of different-diameter can quantitatively control full well injection rate, avoid the super generation of annotating, shorting phenomenon, valve is durable in use, and can irregularly change according to the needs of injection allocation amount adjustment, and change convenient; Substitute the ground needle valve of original annotation gas well mouth, effectively saved maintenance, maintenance cost.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model
The specific embodiment
As shown in Figure 1, the utility model comprises end cap 1, O shape circle 2, threeway 3, fishing sleeve 4, sealing shroud 5, O shape circle 6, gas jets 7, O shape circle 8, seal 9, ball-and-seat 10, stage clip 11, landing nipple 12, sealing sheath ring 13, location swivel nut 14, stop collar 15, end cap 1 is arranged in the threeway 3, fishing sleeve 4, sealing shroud 5, end cap 1, fishing sleeve 4, sealing shroud 5 connects successively, the endoporus of sealing shroud 5 is provided with stop collar 15, gas jets 7, location swivel nut 14, between location swivel nut 14 and the stop collar 15 seal 9 is housed, sealing sheath ring 13, be provided with ball-and-seat 10 in the swivel nut 14 of location, stage clip 11, landing nipple 12 are enclosed within on the swivel nut 14 of location; Gas jets 7 is connected with stop collar 15, and location swivel nut 14 is connected with stop collar 15; Stage clip 11 is connected with ball-and-seat 10; O shape circle 2 is arranged between threeway 3 and the end cap 1, O shape circle 8 is arranged between threeway 3 and the sealing shroud 5, between sealing shroud 5 and the gas jets 7, be provided with O shape between stop collar 15 and the gas jets 7 and enclose 6.
Inject water and enter, rely on injection pressure to back down ball-and-seat 10, after gas jets 7 throttling actions, flow out, flow into pit shaft afterwards from outflow end from the well head controller injection end; When controller outflow end pressure against the ends was higher than injection end pressure or plan and stops annotating, ball-and-seat 10 its sphere and seal 9 under the elastic force effect of stage clip 11 were close together, and realize one-way sealing, effectively intercept stratum gas guest performer.If change gas jets 7 or clean ball-and-seat 10, only need dismantle the end cap 1 on well head controller top earlier, with easy special-purpose fishing tool gas jets 7 and ball-and-seat 10 integral body are pulled out, realize job requirements.
Technical characterstic
1). control of afflux amount and unidirectional inflow are controlled in one, and compact conformation is reasonable;
2) but. valve and ball-and-seat monolithic are pulled out, and execute-in-place is without any need for equipment, change valve and clean ball-and-seat simple and convenient;
3). valve is selected wear-resistant, high-intensity alloy steel for use; The stainless steel that the ball-and-seat material selection is corrosion-resistant, resistive connection is dirty, stable work in work, reliable.
3, performance parameter and index
1). length overall: 311mm, wide: 100mm, height: 122mm;
2). the maximum radius of gyration: 80mm;
3). operating pressure :≤40MPa;
4). connected mode: welding;
5). valve specification: 3.2,3.6,4.0 ... 5.6mm step-length is 0.4mm;
Claims (4)
1, the water injection well well head controller, comprise end cap (1), O shape circle (2), threeway (3), fishing sleeve (4), sealing shroud (5), O shape circle (6), gas jets (7), O shape circle (8), seal (9), ball-and-seat (10), stage clip (11), landing nipple (12), sealing sheath ring (13), location swivel nut (14), stop collar (15), it is characterized in that: end cap (1) is arranged respectively in the threeway (3), fishing sleeve (4), sealing shroud (5), end cap (1), fishing sleeve (4), sealing shroud (5) connects successively, the endoporus of sealing shroud (5) is provided with stop collar (15), gas jets (7), location swivel nut (14), between location swivel nut (14) and the stop collar (15) seal (9) is housed, sealing sheath ring (13), be provided with ball-and-seat (10) in the location swivel nut (14), stage clip (11), landing nipple (12) are enclosed within on the location swivel nut (14).
2, water injection well well head controller according to claim 1 is characterized in that: gas jets (7) is connected with stop collar (15), and location swivel nut (14) is connected with stop collar (15).
3, water injection well well head controller according to claim 1 is characterized in that: stage clip (11) is connected with ball-and-seat (10)
4, water injection well well head controller according to claim 1, it is characterized in that: O shape circle (2) is arranged between threeway (3) and the end cap (1), O shape circle (8) is arranged, between sealing shroud (5) and the gas jets (7), be provided with O shape between stop collar (15) and the gas jets (7) and enclose (6) between threeway (3) and the sealing shroud (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059415 CN2734994Y (en) | 2004-05-13 | 2004-05-13 | Wellhead controller for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059415 CN2734994Y (en) | 2004-05-13 | 2004-05-13 | Wellhead controller for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2734994Y true CN2734994Y (en) | 2005-10-19 |
Family
ID=35264870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059415 Expired - Fee Related CN2734994Y (en) | 2004-05-13 | 2004-05-13 | Wellhead controller for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2734994Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756633A (en) * | 2016-04-11 | 2016-07-13 | 中国石油天然气股份有限公司 | Injection and production device |
| CN109723413A (en) * | 2018-12-21 | 2019-05-07 | 大庆市晟威机械制造有限公司 | Injection well downhole flow regulator |
-
2004
- 2004-05-13 CN CN 200420059415 patent/CN2734994Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756633A (en) * | 2016-04-11 | 2016-07-13 | 中国石油天然气股份有限公司 | Injection and production device |
| CN105756633B (en) * | 2016-04-11 | 2018-07-13 | 中国石油天然气股份有限公司 | Injection and production device |
| CN109723413A (en) * | 2018-12-21 | 2019-05-07 | 大庆市晟威机械制造有限公司 | Injection well downhole flow regulator |
| CN109723413B (en) * | 2018-12-21 | 2019-08-09 | 大庆市晟威机械制造有限公司 | Injection well downhole flow regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051019 Termination date: 20120513 |