CN203925432U - A kind of production tree device - Google Patents
A kind of production tree device Download PDFInfo
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- CN203925432U CN203925432U CN201420211833.8U CN201420211833U CN203925432U CN 203925432 U CN203925432 U CN 203925432U CN 201420211833 U CN201420211833 U CN 201420211833U CN 203925432 U CN203925432 U CN 203925432U
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- ball valve
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- valve
- sleeve
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Abstract
The utility model discloses a kind of production tree device.Comprise: four-way junction of casing, sleeve gate, tubing head, oil pipe four-way, production gate, be disposed with ball valve A, flap valve A, ball valve B and right sleeve gate on the pipeline a of connection production flow line and four-way junction of casing; Ball valve B and the right side are hitched and between gate, are provided with pressure meter.The utility model can guarantee that oil well is in reasonably sleeve pipe air pressure production, and raising machine is taken out well efficiency, while having avoided opening sleeve gate G production simultaneously, and the generation of issuable environmental pollution accident.
Description
Technical field
The utility model relates to oil extraction apparatus field, furtherly, relates to a kind of production tree device.
Background technology
At present oil field is at the production tree device of the oil pumping machine well head of use, is generally two sleeve gates and closes simultaneously or close one of them sleeve gate and open another sleeve gate.Only there is the requirement of minority oil well to close two sleeve gates, controlling sleeve pipe air pressure produces, in this case, if check not in placely, casing gas pressure-controlled is improper, and the casing gas of excess pressure enters after oil well pump, pump is produced gas lock and affects oil well normal volume or non-fluid, exclusion sleeve gas in time, the normal production that could recover oil well, but hysteresis happens occasionally.In addition, most often most of oil wells are to close left sleeve gate, and open right sleeve valve and produce, there are in this case many unfavorable factors, the first causes stratum energy loss, its two be Monitoring and Controlling not at that time, after oil sets annular space liquid rises, from right sleeve valve overflow, cause the generation of environmental pollution accident, it three is that machine adopts that Efficiency Decreasing, energy consumption increase, the loss of lightweight composition, it four is to give birth to normally order to upset, and has increased maintenance workload and cleaning up cost.
Utility model content
For solving the problem occurring in prior art, the utility model provides a kind of production tree device.Production tree device generally comprises four-way junction of casing, left and right sleeve gate, tubing head, oil pipe four-way, left and right production gate, tubing hanger jackscrew, clip, steel ring and other annex; It is the visual plant of oil-gas mining, be used for adapter sleeve tubing string, tubing string, and seal the annular space between each layer of sleeve pipe and between oil pipe, and can control the pressure of production wellhead and regulate oil (gas) well head flow, also can be used for normally carrying out of the measures such as acid fracturing, water filling, test.
The utility model carries out technological improvement to original single well production tree, left sleeve gate is split out, one section of valve combination flow process (comprise a flap valve, 3 stainless steel ball valves and detect casing gas pressure meter) is installed, guarantee that oil well depresses production at rational casing gas, raising machine is taken out well efficiency, while having avoided opening right sleeve gate production simultaneously, the generation of issuable environmental pollution accident.
The purpose of this utility model is to provide a kind of production tree device.
Comprise: four-way junction of casing, sleeve gate, tubing head, oil pipe four-way, production gate;
On the pipeline a of connection production flow line and four-way junction of casing, be disposed with ball valve A, flap valve A, ball valve B and right sleeve gate; Ball valve B and the right side are hitched and between gate, are provided with pressure meter.
Pressure meter is by ball valve C connecting line a.
During for low wet crude well exploitation,
The setting position of ball valve A is lower than flap valve A and ball valve B.
Preferred: ball valve A is than flap valve A and the low 15-25cm of ball valve B.
The utility model specifically can be by the following technical solutions:
On original production tree basis, the left sleeve gate of original Christmas tree casing four-way and production flow line connecting place is removed, in the gate clip spacing of removing, install and a set ofly can go out the valve combination flow process that can not return, (comprise that two is that hoop connects, 3 connected ball valve A, ball valve B, ball valve C, a flap valve A that the connected starting pressure of pipeline is 0.5-1.0MPa installs one and detects casing gas pressure meter on ball valve C).Operating principle: 1, exploit for high water-content crude oil well, as shown in Figure 2, when normally pumping, oil pumper closes right sleeve gate, open ball valve A, ball valve B, ball valve C, in the time that the gas in the ring-like space of oil jacket or fluid pressure reach or exceed production back pressure, flap valve A opens, unnecessary pressure in sleeve pipe is leaked into and produced in manifold, when pressure is during lower than production back pressure, flap valve A closes setting, gas in the ring-like space of oil jacket or liquid, again in a sealing state, are controlled the ring-like space of oil jacket internal pressure under the pressure of regulation.In the time that well head need to be surveyed liquid level or dosing, close ball valve B, open right sleeve gate pressure release, can test or dosing.In the time that down-hole needs heat to wash, close ball valve B.2, exploit as shown in Figure 3 for low wet crude well, operating principle is as above described in high water-content crude oil well exploitation, difference only at the setting position of ball valve A lower than flap valve A, lower than 15-25cm, when major oil collar-shaped space pressure is less than production back pressure, flap valve A is in closing closed state, gas in production fluid is because of density contrast relation, rise and migrate to the flap valve and pipeline on top, forming air accumulation band, while avoiding temperature lower there is frozen block in wet crude at flap valve A place.
Casing gas pressure-controlled due to oil well after technological transformation is produced under normal back pressure, has avoided the generation of oil well gas lock phenomenon and the loss of light composition.After technological transformation, oil well is to close right sleeve gate, in sleeve pipe, form certain casing pressure, oil well pump intake pressure rises, the coefficient of fullness of oil well pump improves, be conducive to improve production fluid amount and machine and adopt efficiency, while stopping to open right sleeve gate production simultaneously in the past, alter logical rear oil well liquid level because of water filling and rise, from the right sleeve gate overflow of opening, cause the generation of farmland pollution accident.
Brief description of the drawings
The production tree device schematic diagram of Fig. 1 prior art
Fig. 2 production tree device of the present utility model schematic diagram
Fig. 3 production tree device of the present utility model schematic diagram (position of ball valve A is lower than flap valve A)
Description of reference numerals:
1 left sleeve valve; Valve is hitched on 2 right sides; 3 left production valves; 4 right production valves; 5 flap valve B; 6 back pressure tables; 7 production flow lines; 8 water mixing pipelines; 9 ball valve A; 10 flap valve A; 11 ball valve B; 12 pressure meters; 13 ball valve C.
Detailed description of the invention
Below in conjunction with embodiment, further illustrate the utility model.
Embodiment 1
As shown in Figure 2, a kind of production tree device.
Comprise: four-way junction of casing, sleeve gate, tubing head, oil pipe four-way, production gate,
On the pipeline a of connection production flow line 7 and four-way junction of casing, be disposed with ball valve A9, flap valve A10, ball valve B11 and right sleeve gate 2; Ball valve B11 and the right side are hitched between gate 2 and are provided with pressure meter 12, and pressure meter 12 is by ball valve C13 connecting line a.
Exploit for high water-content crude oil well, when normally pumping, oil pumper closes right sleeve gate, open ball valve A, ball valve B and ball valve C, in the time that the gas in the ring-like space of oil jacket or fluid pressure reach or exceed production back pressure, flap valve A opens, and unnecessary pressure in sleeve pipe is leaked in production fluid manifold, when pressure is during lower than production back pressure, flap valve A closes setting, and the gas in the ring-like space of oil jacket or liquid, again in a sealing state, are controlled the ring-like space of oil jacket internal pressure under the pressure of regulation.In the time that well head need to be surveyed liquid level or dosing, close ball valve B, open right sleeve gate pressure release, can test or dosing.In the time that down-hole needs heat to wash, close ball valve B.
Embodiment 2
As shown in Figure 3, a kind of production tree device.
With embodiment 1, difference is only that ball valve A is than flap valve A and the low 25cm of ball valve B.
For low wet crude well exploitation, operating principle as described in Example 1, difference only at the setting position of ball valve A lower than flap valve A, when major oil collar-shaped space pressure is less than production back pressure, flap valve A is in closed condition, and the gas in production fluid, because of density contrast relation, rises and migrates to the flap valve and pipeline on top, form air accumulation band, while avoiding temperature lower there is frozen block in wet crude at flap valve place.
Claims (4)
1. a production tree device, comprising: four-way junction of casing, sleeve gate, tubing head, oil pipe four-way, production gate, is characterized in that:
On the pipeline a of connection production flow line and four-way junction of casing, be disposed with ball valve A, flap valve A, ball valve B and right sleeve gate; Ball valve B and the right side are hitched and between gate, are provided with pressure meter.
2. production tree device as claimed in claim 1, is characterized in that:
The setting position of ball valve A is lower than flap valve A and ball valve B.
3. production tree device as claimed in claim 2, is characterized in that:
Ball valve A is than flap valve A and the low 15-25cm of ball valve B.
4. the production tree device as described in one of claim 1～3, is characterized in that:
Pressure meter is by ball valve C connecting line a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211833.8U CN203925432U (en) | 2014-04-28 | 2014-04-28 | A kind of production tree device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211833.8U CN203925432U (en) | 2014-04-28 | 2014-04-28 | A kind of production tree device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925432U true CN203925432U (en) | 2014-11-05 |
Family
ID=51821261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211833.8U Expired - Fee Related CN203925432U (en) | 2014-04-28 | 2014-04-28 | A kind of production tree device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156058A (en) * | 2015-07-29 | 2015-12-16 | 中国石油天然气股份有限公司 | Device and process for preventing backflow of incoming liquid of low-potential well group |
| CN113958304A (en) * | 2021-10-25 | 2022-01-21 | 中国石油大学(华东) | Well head oil production system for mechanical oil production |
-
2014
- 2014-04-28 CN CN201420211833.8U patent/CN203925432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156058A (en) * | 2015-07-29 | 2015-12-16 | 中国石油天然气股份有限公司 | Device and process for preventing backflow of incoming liquid of low-potential well group |
| CN113958304A (en) * | 2021-10-25 | 2022-01-21 | 中国石油大学(华东) | Well head oil production system for mechanical oil production |
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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: 20141105 Termination date: 20210428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |