CN213743360U - Small oil pipe external eccentric gas lift working barrel - Google Patents
Small oil pipe external eccentric gas lift working barrel Download PDFInfo
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- CN213743360U CN213743360U CN202022803126.6U CN202022803126U CN213743360U CN 213743360 U CN213743360 U CN 213743360U CN 202022803126 U CN202022803126 U CN 202022803126U CN 213743360 U CN213743360 U CN 213743360U
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- working barrel
- lift valve
- oil pipe
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Abstract
The utility model discloses a small oil pipe external eccentric gas lift working barrel, which comprises a working barrel main body, wherein the working barrel main body is provided with a gas lift valve mounting groove and a fabrication hole, the working barrel main body at one end of the gas lift valve mounting groove is provided with a gas lift valve connecting thread, the working barrel main body is also provided with an oil pipe air inlet hole, and the oil pipe air inlet hole is communicated with the gas lift valve and the fabrication hole; and a gas lift valve protection body is arranged on the side surface of the gas lift valve mounting groove. The utility model solves the problems of gas lift liquid drainage, oil extraction and gas production of the small-diameter oil casing through the eccentric design of the working cylinder and the gas lift valve and the matching of the working cylinder with the small gas lift valve; the working barrel is suitable for development of oil and gas wells, and has more obvious application effect in inclined wells; and the whole working barrel has no welding part, is high pressure resistant and corrosion resistant, and can be applied to a well containing hydrogen sulfide and carbon dioxide.
Description
Technical Field
The utility model belongs to oil and natural gas exploitation field specifically is an outer eccentric gas lift working barrel of little oil pipe.
Background
In the production process of an oil well, the gas lift oil extraction is an effective mechanical oil extraction method because the self-injection production cannot be carried out along with the reduction of the formation pressure; the gas lift oil extraction is an oil extraction mode that high-pressure natural gas (or gases such as nitrogen, carbon dioxide and the like) is injected into an oil well casing, and the gas enters an oil pipe through a gas lift valve, so that the density of well fluid is reduced, and the self-blowout is recovered. At present, gas lift oil extraction is realized by using a common gas lift valve, and a gas lift working barrel is used as an oil extraction downhole tool commonly used in an oil field and is usually used for installing, fixing and sealing the gas lift valve. The gas lift valve functions as follows: the gas lift valve is arranged on the gas lift working barrel and used for controlling gas injection and gas injection quantity, and high-pressure gas lift gas enters the oil pipe through the gas lift valve hole to achieve the purpose of lifting well fluid, so that the production time of the oil well is effectively prolonged.
The outer diameter of a gas lift valve matched with the current gas lift working barrel is mostly 25.4 mm. The outer diameter of the working barrel is too large, so that the working barrel is not suitable for a vertical well or an inclined well of a small-bore oil casing after the use environment is changed, and normal gas lift oil extraction or high-pressure gas lift liquid drainage cannot be developed.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a little oil pipe outer eccentric gas lift working barrel can overcome prior art's the aforesaid not enough.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a little oil pipe outer off-centre gas lift working barrel, includes the working barrel main part, be equipped with gas lift valve mounting groove and fabrication hole in the working barrel main part, be equipped with gas lift valve connecting thread in the working barrel main part of gas lift valve mounting groove one end, still be equipped with the oil pipe inlet port in the working barrel main part, oil pipe inlet port and gas lift valve and fabrication hole intercommunication.
Further: and a gas lift valve protection body is arranged on the side surface of the gas lift valve mounting groove.
Further: and the side surfaces of the two ends of the working barrel main body are respectively provided with an upper oil pipe connecting thread and a lower oil pipe connecting thread.
Preferably: the working barrel main body is of an integrated structure made of alloy steel.
The utility model discloses a small oil pipe external eccentric gas lift working barrel, which solves the problems of gas lift liquid drainage, oil extraction and gas production of small diameter oil casing pipes by the eccentric design of the working barrel and a gas lift valve and the matching of the working barrel and the small gas lift valve; the working barrel is suitable for development of oil and gas wells, and has more obvious application effect in inclined wells; the working barrel main body is made of an integral alloy steel material, and the whole working barrel is free of welding parts, resistant to high pressure and corrosion and capable of being applied to a well containing hydrogen sulfide and carbon dioxide; in addition, the working barrel is convenient to construct on site, the construction period is shortened, the production operation of an oil-gas well is accelerated, and the development benefit is increased.
Drawings
Fig. 1 is the half-section structure schematic diagram of the small oil pipe external eccentric gas lift working barrel of the utility model.
The reference signs are: the oil pipe upper connecting thread 1, the fabrication hole 2, the gas lift valve mounting groove 3, the gas lift valve connecting thread 4, the oil pipe air inlet 5, the working barrel main body 6 and the oil pipe lower connecting thread 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
A small oil pipe external eccentric gas lift working barrel is shown in figure 1 and comprises an oil pipe upper connecting thread 1, a fabrication hole 2, a gas lift valve mounting groove 3, a gas lift valve connecting thread 4, an oil pipe air inlet 5, a working barrel main body 6 and an oil pipe lower connecting thread 7.
Wherein, be equipped with gas lift valve mounting groove 3 and fabrication hole 2 in the working barrel main part 6, be equipped with gas lift valve connecting thread 4 in the working barrel main part 6 of 3 one ends in gas lift valve mounting groove, still be equipped with oil pipe inlet port 5 in the working barrel main part 6, oil pipe inlet port 5 and gas lift valve and fabrication hole 2 intercommunication, be equipped with connecting thread 1 under connecting thread 7 under connecting thread 1 and the oil pipe on the both ends side of working barrel main part 6 respectively.
Wherein, in the utility model discloses a specific embodiment, the side of gas lift valve mounting groove 3 is equipped with the gas lift valve protection body, and during the use, the gas lift valve is placed in gas lift valve mounting groove, and the surface of gas lift valve is laminated with the surface of gas lift valve protection body, can reduce the wearing and tearing of gas lift valve, improves the life of gas lift valve.
Wherein, in the utility model discloses a specific embodiment, the working barrel main part 6 is the integral type structure of being made by alloy steel, and the whole welding position that does not have of working barrel has high pressure resistant, corrosion-resistant advantage, can use in the well that contains hydrogen sulfide and carbon dioxide.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
The working barrel of the utility model is an integral alloy steel outer eccentric gas lift working barrel, which comprises a working barrel main body 6, wherein the working barrel main body 6 is provided with a gas lift valve mounting groove 3 and a gas lift valve connecting thread 4, when in use, the gas lift valve is placed in the gas lift valve mounting groove 3, and then the gas lift valve is screwed on the position of the gas lift valve connecting thread 4; connecting thread 1 and oil pipe lower connecting thread 7 are connected with oil pipe respectively on the oil pipe of working barrel main part 6 through its both ends, still be equipped with oil pipe inlet port 5 in the working barrel main part 6, oil pipe inlet port 5 and gas lift valve and fabrication hole 2 intercommunication, the utility model discloses a supporting little gas lift valve of working barrel has solved the problem of minor diameter oil sheathed tube gas lift flowing back, oil recovery, gas production, just the utility model discloses a structure has avoided producing the friction phenomenon with the interior intraductal wall of well in the in-process of going into the well, has prolonged sheathed tube life, and this working barrel is applicable to the development of oil gas well, and the result of application is more obvious in the inclined shaft.
To sum up, the working barrel of the utility model is matched with the small gas lift valve, so that the problems of gas lift liquid drainage, oil extraction and gas production of the small-diameter oil casing are solved, the structure of the utility model avoids the friction phenomenon with the inner wall of the casing in the well in the process of going down the well, the service life of the casing is prolonged, the working barrel is suitable for the development of oil and gas wells, and the application effect in inclined wells is more obvious; the whole working barrel has no welding part, has the advantages of high pressure resistance and corrosion resistance, and can be applied to a well containing hydrogen sulfide and carbon dioxide; the abrasion of the gas lift valve can be reduced, and the service life of the gas lift valve is prolonged.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides an outer eccentric gas lift working barrel of little oil pipe, includes working barrel main part (6), its characterized in that: be equipped with gas lift valve mounting groove (3) and fabrication hole (2) on working barrel main part (6), be equipped with gas lift valve connecting thread (4) on working barrel main part (6) of gas lift valve mounting groove (3) one end, still be equipped with oil pipe inlet port (5) on working barrel main part (6), oil pipe inlet port (5) and gas lift valve and fabrication hole (2) intercommunication.
2. The small oil pipe external eccentric gas lift working barrel of claim 1, characterized in that: and a gas lift valve protection body is arranged on the side surface of the gas lift valve installation groove (3).
3. The small oil pipe external eccentric gas lift working barrel of claim 1, characterized in that: and the side surfaces of the two ends of the working barrel main body (6) are respectively provided with an upper oil pipe connecting thread (1) and a lower oil pipe connecting thread (7).
4. The small oil pipe external eccentric gas lift mandrel as claimed in any one of claims 1 to 3, wherein: the working barrel main body (6) is of an integrated structure made of alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022803126.6U CN213743360U (en) | 2020-11-28 | 2020-11-28 | Small oil pipe external eccentric gas lift working barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022803126.6U CN213743360U (en) | 2020-11-28 | 2020-11-28 | Small oil pipe external eccentric gas lift working barrel |
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| Publication Number | Publication Date |
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| CN213743360U true CN213743360U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022803126.6U Active CN213743360U (en) | 2020-11-28 | 2020-11-28 | Small oil pipe external eccentric gas lift working barrel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458256A (en) * | 2021-11-10 | 2022-05-10 | 中国海洋石油集团有限公司 | Offshore oilfield immobile pipe string internal packing type gas lift process pipe string and use method thereof |
-
2020
- 2020-11-28 CN CN202022803126.6U patent/CN213743360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458256A (en) * | 2021-11-10 | 2022-05-10 | 中国海洋石油集团有限公司 | Offshore oilfield immobile pipe string internal packing type gas lift process pipe string and use method thereof |
| CN114458256B (en) * | 2021-11-10 | 2024-01-02 | 中国海洋石油集团有限公司 | Offshore oilfield fixed tubular pipe inner packing type gas lift process tubular pipe and use method thereof |
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