CN202500533U - Double-bellows gas lift valve with set pressure range valves - Google Patents
Double-bellows gas lift valve with set pressure range valves Download PDFInfo
- Publication number
- CN202500533U CN202500533U CN201120475652.2U CN201120475652U CN202500533U CN 202500533 U CN202500533 U CN 202500533U CN 201120475652 U CN201120475652 U CN 201120475652U CN 202500533 U CN202500533 U CN 202500533U
- Authority
- CN
- China
- Prior art keywords
- valve
- gas lift
- pressure
- seat
- ball
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005086 pumping 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
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
- E21B43/123—Gas lift valves
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a double-bellows gas lift valve with set pressure range valves, so as to achieve the purposes that the lift valve can be adapted to pressure changes of an oil gas well and a long gas lift time can be maintained. The double-bellows gas lift valve with set pressure range valves comprises a low pressure control valve at a normally closed state, a single flow valve and a high pressure control valve at a normally open state. Two nitrogen filling set pressure values are provided. The gas lift valve is closed in the case that the valve is lower than a set minimum pressure valve or the valve is greater than a set maximum pressure valve, and the gas lift valve is opened when the valve is in the set pressure range. The gas lift valve can meet a pressure variation rule from high to low of the oil gas well. the gas lift valve is at a closed state in the case that the oil gas well has a high pressure, which facilitates drainage of the oil gas well, meanwhile the gas lift and liquid discharge of the gas lift valve can be ensured in a low formation pressure, and cost of repairing the well and checking the valve is saved. Risk of design failure can be reduced, and the reliability of a gas lift device is improved, especially in the case of an oil gas well with incomplete basic design data such as an exploration well.
Description
Technical field
The utility model relates to a kind of bi-bellow gas lift valve of setting pressure value range, belongs to the exploitation of oil-gas field field of engineering technology.
Background technology
At present; The gas lift valve that is usually used in oil recovery of gaslift technology or water pumping gas production both at home and abroad has bellows to fill the gas lift valve of nitrogen pressure operation, spring-operated or the two operate in conjunction; Wherein bellows fills nitrogen pressure operation gas lift valve and uses more generally, and the whole world has to surpass 20,000 and be applied in the produced on-site every year, and the common ground of these gas lift valves is: when pressure surpasses some setting values; Gas lift valve is in open mode, otherwise then is in closed condition.And in implementing the gaslift activities, along with the continuity of production time, the gas lift valve of the value of being set can not satisfy produces the needs that change; Because increase the operation of inspection valve; Trip out original gas lift valve, more renew valve, individual well inspection valve take from several ten thousand, hundreds of thousands extremely millions of units do not wait.
Summary of the invention
The purpose of the utility model is to provide a kind of bi-bellow gas lift valve of setting pressure value range, and its pressure that can adapt to the oil gas well changes, and in the range of pressure values of setting, works, and can keep the longer gaslift time, practices thrift well workover inspection valve cost.
The concrete technology contents of the utility model is following:
The utility model gas lift valve comprises the high pressure control valve under low-pressure control valve, ball-and-seat and the normally open under the normal off status.
Installing low pressure tail ball-and-seat stifled and the band sealing ring connects upper valve body; The middle valve body of upper valve body other end connecting band sealing ring; Be provided with the bellows component of dribbling valve in the middle valve body; The middle valve body other end is connected with the following valve body of radial direction through hole, is provided with sealing ring and valve seat 8 in the following valve body, and the following valve body other end connects ball-and-seat.
Establish the joint of ball valve, valve seat and sealing ring in the ball-and-seat other end connects, establish the urceolus of bellows component in the joint other end connects, the urceolus other end connects inner cavity chamber, and inner cavity chamber's other end connects the stifled ball-and-seat of installing high pressure tail.
What be positioned at the a-quadrant is ball-and-seat, and it is stifled after injecting low-pressure nitrogen, to load onto the low pressure tail, gets into to prevent extraneous high pressure draught.When pressure was lower than the design low voltage value, the low pressure bellows component propped up ball valve and drops in the valve seat, makes low-pressure control valve be in normally off; When pressure was higher than the low-pressure designs value, bellows component was by the application of force backward, moved the disengaging valve seat after dragging ball valve, and low-pressure control valve is opened, and air-flow gets into oil pipe from the radial direction through hole on the valve body down.
What be positioned at the B zone is ball-and-seat, after injecting high pressure nitrogen, loads onto plug, gets into to prevent extraneous high pressure draught.When pressure was lower than the design high-voltage value, the high pressure bellows component propped up ball valve and breaks away from valve seat, makes high pressure control valve be in normally open; When pressure was higher than the high pressure design load, bellows component was by the application of force backward, was moved back in the valve seat after dragging ball valve, and high pressure control valve is closed.
The utility model gas lift valve has two to fill the force value that nitrogen is set; When being lower than the setting minimum pressure or being higher than maximum pressure, close; In the pressure limit of setting, then open; Its superiority is: can be fit to oil gas well pressure pressure Changing Pattern from high to low, when oil gas well completion, can be lowered to gas lift valve, can guarantee that oil gas well gas lift valve when pressure is higher is in closed condition and helps oil gas well array liquid; Can guarantee simultaneously gas lift valve enforcement gaslift discharge opeing under low strata pressure again, and practice thrift well workover inspection valve cost.Two pressure limit control gas lift valves can reduce the risk of design failure, and the oil gas well that the basic engineering data such as reliability, particularly prospect pit of raising airlift unit are incomplete is all the more so.
The gas lift valve that the utility model is used for operation in two range of pressure values is mainly used in oil recovery of underground work technology gaslift technology or water pumping gas production; Be extraneous source of the gas to be injected into well replenish the gas well energy; Utilize the opening and closing of head of liquid control gas lift valve in the oil pipe; Replace step by step and near the hydrops of pit shaft and shaft bottom that gasifies, reduce pit shaft internal pressure gradient, recover gas well production.
Description of drawings
Fig. 1,2 is the bi-bellow gas lift valve structural representation of setting pressure value range.
Fig. 3,4 is the bi-bellow gas lift valve installation exercise sketch map of setting pressure value range.
The specific embodiment
Embodiment:
Embodiment referring to figs. 1 through 4 pairs of the utility model further specifies:
The utility model gas lift valve comprises the high pressure control valve under low-pressure control valve, ball-and-seat and the normally open under the normal off status.
Low-pressure control valve is stifled 1 by the low pressure tail, ball-and-seat 2, upper valve body 3, middle valve body 4, bellows component 5, ball valve 6, valve body 7 and valve seat 8 are formed down; Installing low pressure tail stifled 1 also connects upper valve bodies 3 with the ball-and-seat 2 of sealing ring B1; The middle valve body 4 of upper valve body 3 other end connecting band sealing ring B2; Be provided with the bellows component 5 of dribbling valve 6 in the middle valve body 4; Middle valve body 4 other ends are connected with the following valve body 7 of radial direction through hole, are provided with sealing ring B3, B4 and valve seat 8 in the following valve body 7, and following valve body 7 other ends connect ball-and-seat 9.
High pressure control valve is made up of joint 10, ball valve 11, valve seat 12, urceolus 13, bellows component 14 and inner cavity chamber 15, ball-and-seat 16 and high pressure tail stifled 17; In connecting, establish ball-and-seat 9 other ends joint 10 of ball valve 11, valve seat 12, sealing ring B5 and sealing ring B6; In connecting, establish joint 10 other ends urceolus 13 of bellows component 14; Urceolus 13 other ends connect inner cavity chamber 15, and inner cavity chamber's 15 other ends connect the ball-and-seat 16 of installing high pressure tail stifled 17.
Fig. 3,4 is depicted as the carrier that fills nitrogen pressure operation gas lift valve through the special bi-bellow of two public oil pipe short circuits; The bi-bellow gas lift valve of setting pressure value range can be installed in before going into the well on this carrier, has the hole of the high pressure control valve end on a hole and the gas lift valve relative on the oil pipe.(low pressure can design at 1～24MPa when pressure is within the design load scope; High pressure can design 2～25MPa); Air-flow can get into gas lift valve through the C place, gets into oil pipe in the hole through the high voltage control end, and then air-flow can not get into oil pipe through gas lift valve when pressure is not within scope of design.
Claims (1)
1. the bi-bellow gas lift valve of a setting pressure value range comprises the high pressure control valve under low-pressure control valve, ball-and-seat and the normally open under the normal off status, it is characterized in that:
Installing low pressure tail stifled (1) also connects upper valve body (3) with the ball-and-seat (2) of sealing ring (B1); The middle valve body (4) of upper valve body (3) other end connecting band sealing ring (B2); Be provided with the bellows component (5) of dribbling valve (6) in the middle valve body (4); Middle valve body (4) other end is connected with the following valve body (7) of radial direction through hole, is provided with sealing ring (B3, B4) and valve seat (8) in the following valve body (7), and following valve body (7) other end connects ball-and-seat (9);
In connecting, establishes ball-and-seat (9) other end joint (10) of ball valve (11), valve seat (12), sealing ring (B5, B6); In connecting, establishes joint (10) other end urceolus (13) of bellows component (14); Urceolus (13) other end connects inner cavity chamber (15), and inner cavity chamber (15) other end connects the ball-and-seat (16) of installing high pressure tail stifled (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120475652.2U CN202500533U (en) | 2011-11-25 | 2011-11-25 | Double-bellows gas lift valve with set pressure range valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120475652.2U CN202500533U (en) | 2011-11-25 | 2011-11-25 | Double-bellows gas lift valve with set pressure range valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500533U true CN202500533U (en) | 2012-10-24 |
Family
ID=47037148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120475652.2U Expired - Fee Related CN202500533U (en) | 2011-11-25 | 2011-11-25 | Double-bellows gas lift valve with set pressure range valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924906A (en) * | 2016-10-20 | 2020-03-27 | 中国石油化工股份有限公司 | Gas lift well liquid discharge simulation test device |
| WO2021086496A1 (en) * | 2019-10-30 | 2021-05-06 | Exxonmobil Upstream Researchcompany | Self-adjusting gas lift system |
| CN117345163A (en) * | 2023-12-05 | 2024-01-05 | 东营市昌瑞石油机械配件有限责任公司 | Double-sealing gas lift valve |
-
2011
- 2011-11-25 CN CN201120475652.2U patent/CN202500533U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924906A (en) * | 2016-10-20 | 2020-03-27 | 中国石油化工股份有限公司 | Gas lift well liquid discharge simulation test device |
| CN110924906B (en) * | 2016-10-20 | 2021-11-09 | 中国石油化工股份有限公司 | Gas lift well liquid discharge simulation test device |
| WO2021086496A1 (en) * | 2019-10-30 | 2021-05-06 | Exxonmobil Upstream Researchcompany | Self-adjusting gas lift system |
| US11555388B2 (en) | 2019-10-30 | 2023-01-17 | Exxonmobil Upstream Research Company | Self-adjusting gas lift system |
| CN117345163A (en) * | 2023-12-05 | 2024-01-05 | 东营市昌瑞石油机械配件有限责任公司 | Double-sealing gas lift valve |
| CN117345163B (en) * | 2023-12-05 | 2024-02-06 | 东营市昌瑞石油机械配件有限责任公司 | Double-sealing gas lift valve |
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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 |
Granted publication date: 20121024 Termination date: 20201125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |