CN204457655U - Recovery device of casing gas - Google Patents
Recovery device of casing gas Download PDFInfo
- Publication number
- CN204457655U CN204457655U CN201420852250.3U CN201420852250U CN204457655U CN 204457655 U CN204457655 U CN 204457655U CN 201420852250 U CN201420852250 U CN 201420852250U CN 204457655 U CN204457655 U CN 204457655U
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- production tree
- casing
- way
- 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
- 238000011084 recovery Methods 0.000 title abstract description 11
- 238000007599 discharging Methods 0.000 claims description 15
- 241000191291 Abies alba Species 0.000 claims description 13
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 77
- 239000003921 oil Substances 0.000 description 29
- 239000003129 oil well Substances 0.000 description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model discloses a recovery unit of sleeve pipe gas belongs to the oil machinery field. The recovery unit of sleeve pipe gas includes: the back pressure valve is connected with the metering station through an oil-gas mixed transmission pipeline, the back pressure valve is a one-way valve, and the sleeve gas recovery device can guide the sleeve gas in the annular space between the oil pipe and the sleeve into the metering station through the four-way pipeline, the gas collecting pipeline, the oil collecting pipeline and the oil-gas mixed transmission pipeline. The utility model provides a direct release sleeve pipe gas to the air in cause the waste of resource and to cause the problem of pollution to the air, realized the recovery to sleeve pipe gas, and avoided the effect to the waste of resource and to the pollution of air for the recovery of sleeve pipe gas.
Description
Technical field
The utility model relates to field of petroleum machinery, particularly a kind of retracting device of casing gas.
Background technology
Oil well is when work, and oil pipe and sleeve pipe are positioned at oil well, and casing pipe sleeve is connected on outside oil pipe.When crude oil is exploited, crude oil is extracted out outside oil well from oil pipe, and stores.Can bubbing from crude oil bottom oil well, in the process of recovering the oil, some gas enters in the annular space between oil pipe and sleeve pipe, and the gas in this part annular space between oil pipe and sleeve pipe is called casing gas.
In prior art, owing to assembling in the annular space of casing gas for a long time between oil pipe and sleeve pipe, the pressure in the annular space between oil pipe and sleeve pipe is caused to increase, affect oil well to work normally, so usually need the casing gas in the annular space between this oil pipe and sleeve pipe to carry out being released in air.
But, because casing gas is hydrocarbon, as fuel, casing gas can be directly released in air, not only cause the waste of resource, and can pollute air.
Utility model content
Directly casing gas is released into the waste not only causing resource in air to solve, and the problem that can pollute air, the utility model provides a kind of retracting device of casing gas.Described technical scheme is as follows:
On the one hand, provide a kind of retracting device of casing gas, the retracting device of described casing gas comprises: back pressure valve, Christmas tree big four joint, the first production tree valve, casing head, shaven head, plug, four-way pipeline, valve discharging gas under certain pressure, ball valve, gas gathering line, the little four-way of production tree, the second production tree valve, the little four-way head of production tree, gathering line, oil and gas multiphase flow pipeline and measuring station
Described back-pressure valve door is connected with described measuring station by described oil and gas multiphase flow pipeline, described back pressure valve is one-way cock, when gas is from described back pressure valve to described measuring station flowing, described back pressure valve open, the casing gas in the annular space between oil pipe and sleeve pipe can be imported in described measuring station by described four-way pipeline, described gas gathering line, described gathering line and described oil and gas multiphase flow pipeline by the retracting device of described casing gas.
Optionally, the two ends of described Christmas tree big four joint are connected to two described casing heads, and described Christmas tree big four joint and two described casing heads are single piece, and two described casing heads are connected to two described first production tree valves;
A first production tree valve in two described first production tree valves is connected with described shaven head, and described shaven head is connected with described plug, and described plug is provided with pressure meter, and described pressure meter can be measured and indicate the pressure around described plug,
Another the first production tree valve in two described first production tree valves is connected with described valve discharging gas under certain pressure by described four-way pipeline.
Optionally, described valve discharging gas under certain pressure is connected with described ball valve by described gas gathering line, and described ball valve is connected with described gathering line by described gas gathering line.
Optionally, the little four-way of described production tree and the little four-way head of described production tree are single piece, and described production tree little four-way head is connected with described second production tree valve, and described second production tree valve is connected with described back pressure valve by described gathering line.
The utility model provides a kind of retracting device of casing gas, by arranging back pressure valve, Christmas tree big four joint, the first production tree valve, casing head, shaven head, plug, four-way pipeline, valve discharging gas under certain pressure, ball valve, gas gathering line, the little four-way of production tree, the second production tree valve, the little four-way head of production tree, gathering line, oil and gas multiphase flow pipeline and measuring station in the retracting device of this casing gas, make casing gas can enter in this measuring station, achieve the recovery to casing gas, so, avoid the waste to resource and the pollution to air.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the retracting device of a kind of casing gas that the utility model embodiment provides.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
When oil well is normally produced, oil pipe and sleeve pipe are positioned at oil well, and casing pipe sleeve is connected on outside oil pipe.In the process of recovering the oil, being arranged in crude oil bottom this oil well can bubbing, and some gas enters in the annular space between oil pipe and sleeve pipe, and the gas in this part annular space between oil pipe and sleeve pipe is called casing gas.
As shown in Figure 1, the utility model embodiment provides a kind of retracting device 00 of casing gas, and this recovery of casing device of air 00 can comprise: back pressure valve 1, Christmas tree big four joint 2, first production tree valve 3, casing head 4, shaven head 5, plug 6, four-way pipeline 7, valve discharging gas under certain pressure 8, ball valve 9, gas gathering line 10, the little four-way of production tree 11, second production tree valve 12, the little four-way head 13 of production tree, gathering line 14, oil and gas multiphase flow pipeline 15 and measuring station 16.
Back pressure valve 1 is connected with measuring station 16 by oil and gas multiphase flow pipeline 15, back pressure valve 1 is one-way cock, when gas flows from back pressure valve 1 to measuring station 16, back pressure valve 1 is opened, and the casing gas in the annular space between oil pipe and sleeve pipe can be imported in measuring station 16 by four-way pipeline 7, gas gathering line 10, gathering line 14 and oil and gas multiphase flow pipeline 15 by the retracting device of casing gas.
In sum, in the retracting device of the casing gas provided due to the utility model embodiment, be provided with back pressure valve, Christmas tree big four joint, the first production tree valve, casing head, shaven head, plug, four-way pipeline, valve discharging gas under certain pressure, ball valve, gas gathering line, the little four-way of production tree, the second production tree valve, the little four-way head of production tree, gathering line, oil and gas multiphase flow pipeline and measuring station, make casing gas can enter in this measuring station, achieve the recovery to casing gas, so, avoid the waste to resource and the pollution to air.
Further, as shown in Figure 1, the two ends of Christmas tree big four joint 2 are connected to two casing heads 4, and Christmas tree big four joint 2 and two casing heads 4 are single piece, and two casing heads 4 are connected to two the first production tree valves 3.A first production tree valve 301 in two the first production tree valves 3 is connected with shaven head 5, and shaven head 5 is connected with plug 6, and plug 6 is provided with pressure meter, and pressure meter can be measured and indicate the pressure around plug 6.Another the first production tree valve 302 in two the first production tree valves 3 is connected with valve discharging gas under certain pressure 8 by four-way pipeline 7.
As shown in Figure 1, valve discharging gas under certain pressure 8 is connected with ball valve 9 by gas gathering line 10, and ball valve 9 is connected with gathering line 14 by gas gathering line 10.Example, the little four-way of production tree 11 and the little four-way head 13 of production tree are single piece, and the little four-way head 11 of production tree is connected with the second production tree valve 12, and the second production tree valve 12 is connected with back pressure valve 1 by gathering line 14.
Example, Christmas tree big four joint 2, the first production tree valve 3 in Fig. 1, casing head 4, shaven head 5, plug 6, the little four-way of production tree 11, second production tree valve 12 and the little four-way head 13 of production tree are oil field working standard part, and market is on sale.The specification of four-way pipeline 7 is the steel pipeline of D50 × 5 (diameter is 50 millimeters, and wall thickness is 5 millimeters), commercially available.Gas gathering line 10 for specification be the steel pipeline of D50 × 5, commercially available.Gathering line 14 for specification be the steel pipeline of D50 × 5, commercially available.Oil and gas multiphase flow pipeline 15 for specification be the steel pipeline of D50 × 5, commercially available.Valve discharging gas under certain pressure 8 is provided by North China Oilfield petroleum production engineering academy.Pressure gage measuring range on plug 6 is 2.5 MPas, commercially available.Back pressure valve 1 for specification be the slide valve of D50 (diameter is 50 millimeters), commercially available.The specification of ball valve 9 is D50, commercially available.Miscellaneous part is common components or commercially available.Measuring station 16 is oilfield transfer station, by standard map construction.
Constructor can use the retracting device of this casing gas, can eliminate oil-well pump of oil well gas lock, can reclaim again and be scattered in the less associated gas of oil field individual well, realize the recovery to casing gas.In practice, individual well annual mean can be reached and reclaim natural gas more than 10000 side.Example, when oil well is normally produced, the second production tree valve, back pressure valve are in normally open, and the first production tree valve, valve discharging gas under certain pressure and ball valve are in closed condition.When oil well casing natural gas collected by needs, constructor can open the first production tree valve be connected with shaven head, and manometric reading on observation band plug, when the number of degrees on pressure meter are in the scope of 0.1 ~ 0.5 MPa, open the first production tree valve and the ball valve be not connected with shaven head successively, be positioned at the casing gas of oil well successively through casing head, first production tree valve, four-way pipeline, valve discharging gas under certain pressure, gas gathering line, ball valve, gas gathering line enters gathering line, then measuring station is transported to by back pressure valve and oil and gas multiphase flow pipeline successively and after carrying out Oil-gas Separation, natural gas is recycled.
In sum, in the retracting device of the casing gas provided due to the utility model embodiment, be provided with back pressure valve, Christmas tree big four joint, the first production tree valve, casing head, shaven head, plug, four-way pipeline, valve discharging gas under certain pressure, ball valve, gas gathering line, the little four-way of production tree, the second production tree valve, the little four-way head of production tree, gathering line, oil and gas multiphase flow pipeline and measuring station, make casing gas can enter in this measuring station, achieve the recovery to casing gas, so, avoid the waste to resource and the pollution to air.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the retracting device of a casing gas, it is characterized in that, the retracting device of described casing gas comprises: back pressure valve, Christmas tree big four joint, the first production tree valve, casing head, shaven head, plug, four-way pipeline, valve discharging gas under certain pressure, ball valve, gas gathering line, the little four-way of production tree, the second production tree valve, the little four-way head of production tree, gathering line, oil and gas multiphase flow pipeline and measuring station
Described back-pressure valve door is connected with described measuring station by described oil and gas multiphase flow pipeline, described back pressure valve is one-way cock, when gas is from described back pressure valve to described measuring station flowing, described back pressure valve open, the casing gas in the annular space between oil pipe and sleeve pipe can be imported in described measuring station by described four-way pipeline, described gas gathering line, described gathering line and described oil and gas multiphase flow pipeline by the retracting device of described casing gas.
2. the retracting device of casing gas according to claim 1, is characterized in that,
The two ends of described Christmas tree big four joint are connected to two described casing heads, and described Christmas tree big four joint and two described casing heads are single piece, and two described casing heads are connected to two described first production tree valves;
A first production tree valve in two described first production tree valves is connected with described shaven head, and described shaven head is connected with described plug, and described plug is provided with pressure meter, and described pressure meter can be measured and indicate the pressure around described plug,
Another the first production tree valve in two described first production tree valves is connected with described valve discharging gas under certain pressure by described four-way pipeline.
3. the retracting device of casing gas according to claim 2, is characterized in that,
Described valve discharging gas under certain pressure is connected with described ball valve by described gas gathering line, and described ball valve is connected with described gathering line by described gas gathering line.
4. the retracting device of casing gas according to claim 3, is characterized in that,
The little four-way of described production tree and the little four-way head of described production tree are single piece, and described production tree little four-way head is connected with described second production tree valve, and described second production tree valve is connected with described back pressure valve by described gathering line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852250.3U CN204457655U (en) | 2014-12-27 | 2014-12-27 | Recovery device of casing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852250.3U CN204457655U (en) | 2014-12-27 | 2014-12-27 | Recovery device of casing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457655U true CN204457655U (en) | 2015-07-08 |
Family
ID=53664557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420852250.3U Expired - Fee Related CN204457655U (en) | 2014-12-27 | 2014-12-27 | Recovery device of casing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622870A (en) * | 2020-12-09 | 2022-06-14 | 中国石油天然气股份有限公司 | Associated gas recovery device and recovery method |
-
2014
- 2014-12-27 CN CN201420852250.3U patent/CN204457655U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622870A (en) * | 2020-12-09 | 2022-06-14 | 中国石油天然气股份有限公司 | Associated gas recovery device and recovery method |
| CN114622870B (en) * | 2020-12-09 | 2024-05-28 | 中国石油天然气股份有限公司 | Associated gas recovery device and recovery method |
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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: 20150708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |