CN202031548U - Device for recovering gas in wellhead and well group casing of oilfield - Google Patents
Device for recovering gas in wellhead and well group casing of oilfield Download PDFInfo
- Publication number
- CN202031548U CN202031548U CN 201120091641 CN201120091641U CN202031548U CN 202031548 U CN202031548 U CN 202031548U CN 201120091641 CN201120091641 CN 201120091641 CN 201120091641 U CN201120091641 U CN 201120091641U CN 202031548 U CN202031548 U CN 202031548U
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Abstract
The utility model relates to a technology of recovering associated gas in the petroleum and natural gas industry, in particular to a device for recovering gas in a wellhead and a well group casing of an oilfield. The device is characterized in that the device comprises a wellhead oil recovery device, a booster pump, a gas inlet pipeline, a gas outlet pipeline, a filter and a first ball valve, wherein a front-side four-way and a rear-side four-way are connected in front of and behind the wellhead oil recovery device, the front-side four-way is connected with the gas inlet pipeline, the rear-side four-way is connected with the gas outlet pipeline and a bypass pipeline is connected between the gas inlet pipeline and the gas outlet pipeline; and the gas inlet pipeline is connected with the filter, connected with the first ball valve after the filter and further divided into two paths after passing through the output end of the first ball valve, and the two paths of the gas inlet pipeline are connected with one-way valves at an upper-side outlet and a lower-side outlet in front of the booster pump respectively. The device for recovering the gas in the wellhead and the well group casing of the oilfield is simple in method and low in investment and can be used by remote blocks.
Description
Technical field
The utility model relates to a kind of recovery technology of oil and gas industry associated gas, particularly a kind of retracting device of oil field shaft mouth sleeve pipe gas.
Background technology
In recent years, more and more higher to the demand of resource along with Chinese economic development, large quantities of equipment and technology that do not meet the energy-conserving and environment-protective policy will progressively be eliminated.In the recovery process in oil field, because the variation of pressure, some gas can be separated from crude oil, if the gas that produces accumulates in the annular space of sleeve pipe, has just formed sleeve pipe gas.Sleeve pipe gas forces well fluid level to descend, and the effective producing pressure differential of oil well is reduced, and production capacity descends; A part flows to into the oil well pump pump chamber with liquid, occupies certain pump chamber space, influences pump efficiency, when serious " gas lock " can take place, and oil well pump can't be worked.For not influencing oil well yield, need the gas in the regular exclusion sleeve, the direct emptying that gas flow is little, the burning that gas flow is big, these two kinds of methods had both been polluted environment, had wasted ample resources again.For addressing this problem, a large amount of engineers and technicians have done many good tries, as in the last few years one way valve level pressure venting, natural gas compressor recovery of casing gas etc., but its limitation is arranged all, as equipment investment height, running cost height, maintenance inconvenience, pressure and total amount to gas need satisfy certain requirement, need to increase external power etc., simultaneously, reclaim conveying separately as gas, also need pipeline installation etc., it is the comparison difficulty that the sleeve in oil field gas of the remote districts that these are little for amount, disperse is recycled, sometimes even be difficult to recoup the investment.
Summary of the invention
The purpose of this utility model is to provide a kind of method simple, the retracting device of reduced investment, the also operable oil field shaft mouth of outlying block, well group sleeve pipe gas.
The technical solution of the utility model is achieved in that the retracting device of a kind of oil field shaft mouth, well group sleeve pipe gas, it is characterized in that: comprise Christmas tree, booster pump, admission line, the pipeline of giving vent to anger, strainer and first ball valve, connect front side four-way and rear side four-way before and after the Christmas tree, the front side four-way links to each other with admission line, the rear side four-way is connected with the pipeline of giving vent to anger, and admission line is connected by-pass line with giving vent to anger between the pipeline.
Described admission line links to each other with strainer, through behind the filter, connects first ball valve, divides two-way behind the first ball valve output, and two-way is connected with the one way valve of upper and lower side outlet before the booster pump respectively.
The screw rod end of described booster pump links to each other with the walking beam of oil pumper, and the lower end is fixed on the basis.
Converge the upper and lower gas outlet of described booster pump rear side is the pipeline of giving vent to anger, and the pipeline of giving vent to anger links to each other with rear side four-way before the petroleum pipeline.
Described flow meter, ball valve and the one way valve of on the pipeline of giving vent to anger, being equipped with.
Concentric reducer, second ball valve, reducing valve are installed on the described by-pass line.
The utility model mainly is an excess power (or descending load of oil well pump) of having utilized existing oil pumper, has realized the recycling to sleeve pipe gas, has formed a kind of novel sleeve pipe gas recovery method.Do not need to increase the extra power of oil pumper, utilize booster pump piston motion supercharging principle, be equipped with the recovery that existing strainer, one way valve, reducing valve, ball valve etc. have been realized sleeve pipe gas, saved Limited resources, reduced the pollution of environment, meet the energy-conserving and environment-protective policy of country, and can produce good economic benefits.
Characteristics of the present utility model are: a kind of novel oil field shaft mouth sleeve pipe gas recovery method, realized low-cost recovery of casing gas, and realized energy-conserving and environment-protective.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Fig. 1 is the embodiment schematic flow sheet.
Among the figure: 1. strainer; 2. admission line; 3. first ball valve; 4. one way valve; 5. booster pump; 6. the pipeline of giving vent to anger; 7. reducing valve; 8. flow meter; 9. bypass line; 10. Christmas tree; 11. front side four-way; 12. rear side four-way; 13. by-pass line; 14. second ball valve.
The specific embodiment
The utility model is changed to four-way with former and later two threeways in the existing Christmas tree, it is characterized in that: comprise Christmas tree 10, booster pump 5, admission line 2, the pipeline 6 of giving vent to anger, strainer 1 and first ball valve 3, Christmas tree 10 front and back connect front side four-way 11 and rear side four-way 12, front side four-way 11 links to each other with admission line 2, and rear side four-way 12 is connected with the pipeline 6 of giving vent to anger.Admission line 2 is connected by-pass line 13 with giving vent to anger between the pipeline 6.Admission line 2 links to each other with strainer 1, through behind the filter 1, connects first ball valve 3, divides two-way behind first ball valve, 3 outputs, and two-way is connected with the one way valve 4 of booster pump 5 preceding upper and lower side outlets respectively.
The screw rod end of booster pump 5 links to each other with the walking beam of oil pumper, and the lower end is fixed on the basis.The upper and lower gas outlet of booster pump 5 rear sides links to each other with the pipeline 6 of giving vent to anger, and to converge be that the pipeline of giving vent to anger links to each other with rear side four-way 12 before the petroleum pipeline.Flow meter 8, ball valve and one way valve 4 are installed in the relevant position on the pipeline 6 of giving vent to anger, and finish the connection procedure of whole pipeline.
Concentric reducer, second ball valve 14, reducing valve 7 are installed on the by-pass line 13, and are connected, form the bypass circulation pipeline with the pipeline 6 of giving vent to anger.
Entire work process is such: associated gas is from the sleeve pipe of original Christmas tree 10 after the extraction, through four-way and ball valve, enter into strainer 1, after filtering, enter into booster pump 5 through admission line 2 and ball valve 3 again, before the booster pump and behind the pump two one way valves are arranged respectively, two one way valves before the booster pump are connected with admission line, two one way valves behind the booster pump link to each other with the pipeline 6 of giving vent to anger, thereby make pump all can have associated gas to be inhaled in the pump in upper and lower stroke and be discharged from outside the pump; Booster pump compresses gas by means of the excess power of oil pumper, and associated gas outside the excavationg pump, enters into the pipeline of giving vent to anger through one way valve after booster pump compression pressurization; The associated gas of giving vent to anger in the pipeline is pressed in the oil pipeline through one way valve, ball valve, four-way.Convenient for preventing booster pump fault and maintenance, at admission line with give vent to anger and also have bypass line 9 between the pipeline, reducing valve 7 and ball valve are housed on the by-pass line, under the normal condition, ball valve is in closed condition; On the pipeline of giving vent to anger, also be provided with flow meter 8, can measure the real-time of associated gas and accumulative total treating capacity.
Claims (6)
1. the retracting device of an oil field shaft mouth, well group sleeve pipe gas, it is characterized in that: comprise Christmas tree (10), booster pump (5), admission line (2), the pipeline of giving vent to anger (6), strainer (1) and first ball valve (3), connect front side four-way (11) and rear side four-way (12) before and after the Christmas tree (10), front side four-way (11) links to each other with admission line (2), rear side four-way (12) is connected with the pipeline of giving vent to anger (6), is connected by-pass line (13) between admission line (2) and the pipeline of giving vent to anger (6).
2. the retracting device of a kind of oil field shaft mouth according to claim 1, well group sleeve pipe gas, it is characterized in that: described admission line (2) connects first ball valve (3) through filter (1), output divides two-way behind first ball valve (3), and two-way is connected with the one way valve (4) of the preceding upper and lower side outlet of booster pump (5) respectively.
3. the retracting device of a kind of oil field shaft mouth according to claim 1, well group sleeve pipe gas is characterized in that: the screw rod end of described booster pump (5) links to each other with the walking beam of oil pumper, and the lower end is fixed on the basis.
4. the retracting device of a kind of oil field shaft mouth according to claim 1, well group sleeve pipe gas, it is characterized in that: converge the upper and lower gas outlet of described booster pump (5) rear side is the pipeline of giving vent to anger (6), and the preceding rear side four-way (12) of the pipeline of giving vent to anger (6) and petroleum pipeline links to each other.
5. the retracting device of a kind of oil field shaft mouth according to claim 1, well group sleeve pipe gas is characterized in that: described flow meter (8), ball valve and the one way valve (4) of being equipped with on the pipeline of giving vent to anger (6).
6. the retracting device of a kind of oil field shaft mouth according to claim 1, well group sleeve pipe gas is characterized in that: described by-pass line (13) is gone up concentric reducer, second ball valve (14), reducing valve (7) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120091641 CN202031548U (en) | 2011-03-31 | 2011-03-31 | Device for recovering gas in wellhead and well group casing of oilfield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120091641 CN202031548U (en) | 2011-03-31 | 2011-03-31 | Device for recovering gas in wellhead and well group casing of oilfield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031548U true CN202031548U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120091641 Expired - Lifetime CN202031548U (en) | 2011-03-31 | 2011-03-31 | Device for recovering gas in wellhead and well group casing of oilfield |
Country Status (1)
| Country | Link |
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| CN (1) | CN202031548U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN104405343A (en) * | 2014-11-17 | 2015-03-11 | 中国石油天然气股份有限公司 | Recovery device for cluster well group associated gas and recovery method thereof |
| CN105114039A (en) * | 2015-08-05 | 2015-12-02 | 中国石油天然气股份有限公司 | Oilfield well site casing gas recycling device and recycling method thereof |
| CN110030491A (en) * | 2019-04-29 | 2019-07-19 | 西安长庆科技工程有限责任公司 | A kind of production wellhead associated gas linkage type plunger booster recyclable device and method |
-
2011
- 2011-03-31 CN CN 201120091641 patent/CN202031548U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747989A (en) * | 2012-07-29 | 2012-10-24 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN102747989B (en) * | 2012-07-29 | 2015-02-18 | 上海亿景能源科技有限公司 | Oil well casing gas collecting device |
| CN104405343A (en) * | 2014-11-17 | 2015-03-11 | 中国石油天然气股份有限公司 | Recovery device for cluster well group associated gas and recovery method thereof |
| CN105114039A (en) * | 2015-08-05 | 2015-12-02 | 中国石油天然气股份有限公司 | Oilfield well site casing gas recycling device and recycling method thereof |
| CN105114039B (en) * | 2015-08-05 | 2017-07-07 | 中国石油天然气股份有限公司 | Well site of oil field casing gas recovering device and recovery method |
| CN110030491A (en) * | 2019-04-29 | 2019-07-19 | 西安长庆科技工程有限责任公司 | A kind of production wellhead associated gas linkage type plunger booster recyclable device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |