CN203685135U - Electric submersible pump airlock automatic releasing device - Google Patents
Electric submersible pump airlock automatic releasing device Download PDFInfo
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- CN203685135U CN203685135U CN201320659004.1U CN201320659004U CN203685135U CN 203685135 U CN203685135 U CN 203685135U CN 201320659004 U CN201320659004 U CN 201320659004U CN 203685135 U CN203685135 U CN 203685135U
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- Prior art keywords
- submersible pump
- electric submersible
- gas lock
- convex platform
- inner convex
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Abstract
The utility model discloses an electric submersible pump airlock automatic releasing device, which comprises a body, wherein the body is of a tubular structure, an inner boss integrally formed with the body is arranged in the body of the tubular structure, a positioning snap ring is arranged at the position, close to the inner boss for a certain distance, of the upper end of the inner boss, a movable valve core is clamped between the positioning snap ring and the inner boss, and the middle part of the valve core is provided with a runner. The electric submersible pump airlock automatic releasing device has the beneficial effects that when airlock occurs in a producing well, the electric submersible pump can automatically release the airlock without adding too much cost, so that an offshore oilfield producing well can fast recover production, the production hourly rate of the producing well is improved, and loss of yield is avoided, and meanwhile, compared with the traditional manual airlock releasing, personnel interference is not needed, the offshore operation risk of the personnel is reduced, a large number of operating cost for oil well fault handling is saved, the reliability is high, and the safety factor is high.
Description
Technical field
The utility model relates to marine electric submersible pump oil development field, specifically, relates to and a kind ofly automatically terminates the device of gas lock when a kind of electric submersible pump can automatic unlocking after marine electric submersible pump oil well electric submerged pump generation gas lock resuming production.
Background technology
Chinese Sea oil has passed through the development of decades, total generic failure problem at reply electric submersible pump producing well has summed up various effective treating methods, in the time that electric immersible pump well breaks down, can solve fast, avoid the loss of output and large-scale mobilization personnel to carry out to fault electric immersible pump well the cost that workover treatment brings.But, due to the invisibility of oil field geologic situation, may there is deviation to obtaining data in development process, in the actual development process of oil field actual conditions may with different design, the problem causing is like this more difficult.As in the carbonated electric immersible pump well of height, if the sleeve pipe of electric submersible pump upper packer packing does not possess anti-carbon dioxide corrosion, cannot be lowered to the packer with vent valve, solve the impact of gas on electric submersible pump.
Offshore oilfield is in the time running into electric pump gas lock at present, mainly by mobilization personnel, producing well is carried out to steel wire and drag for plug operation, electric submersible pump gas is around discharged into electric pump top by plug place, be submerged in liquid thereby realize electric submersible pump, from new startup electric submersible pump, electric submersible pump can contact gas lock impact, normal well liquid, the production restoration of discharging.Such method will be sacrificed the running time of electric submersible pump, thus the loss that has brought output; Mobilize personnel also to need a considerable expense simultaneously.
By this, in order to overcome existing marine electric immersible pump well in the production loss that occurs to bring after gas lock and to save the expense of processing gas lock, design aly when offshore oil gas well is after electric submersible pump generation gas lock, electric submersible pump can automatically terminate the device of gas lock, is necessary.
Utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and electric submersible pump that a kind of offshore oil gas well of providing can automatically terminate after electric submersible pump generation gas lock automatically terminates the device of gas lock.When this device has not only been realized electric pump well generation gas lock, can in the short period, automatically terminate, but also improve the production time efficiency of oil well, avoid production loss, save a large amount of operating costs of oil well failure processing.
The technical scheme that the utility model solution prior art problem adopts is: a kind of electric submersible pump automatically terminates the device of gas lock, comprise body, described body in tubular construction, in the body of described tubular structure, be provided with an inner convex platform integrated with it, upper end in described inner convex platform is provided with a location snap ring near described inner convex platform certain distance, the spool that is arranged with a movable movement between described location snap ring and inner convex platform, the middle part of described spool has a runner.
Below above technical scheme is further elaborated:
Preferably, the length of described spool is not less than the distance of described inner convex platform and described locator card interannular.
Preferably, the upper end of described spool is provided with a flange, and lower end is tapered, and band runner spool is arranged between described inner convex platform and location snap ring by described flange.
Preferably, described spool is stainless steel.
Preferably, the size of described runner is adjustable.
Preferably, the upper and lower both ends open of described tubular structure body; Opening in snap ring one end, described location is internal thread, so that described tubular structure body is connected with flow string; Be external screw thread in the opening of described inner convex platform one end, so that described tubular structure body is connected with electric submersible pump electric pump outlet tubing string.
The beneficial effects of the utility model are:
One, after at sea oilfield producing well electric submersible pump generation gas lock is closed down, the utility model electric submersible pump automatically terminates the device of gas lock, fluid in its top flow string is by described band runner spool, under the effect of gravity, flow to the bottom that this electric submersible pump automatically terminates the device of gas lock, the bottom pressure that automatically terminates the device of gas lock at this electric submersible pump is greater than after its upper pressure, packing causes the gas of electric submersible pump gas lock upwards to discharge by described band runner spool around electric submersible pump, automatically terminates gas lock fault thereby realize electric submersible pump.
Two, the utility model is in the time of producing well generation gas lock, and electric submersible pump used can automatically terminate gas lock, without additional too many cost, offshore oilfield producing well can be resumed production fast, has improved the production time efficiency of oil well, has avoided the loss of output.
Three, the utility model electric submersible pump automatically terminates the device of gas lock, not only realize in the time of electric pump well generation gas lock and can in the short period, automatically terminate, simultaneously, with respect to traditional artificial releasing gas lock, intervene without personnel, the operating risk that has reduced the marine releases of personnel, saved a large amount of operating costs of oil well failure processing, and reliability is strong, safety factor is high.
Four, in the present embodiment; the large I of described runner is selected according to the electric pump situation of different offshore oil producing wells; to greatest extent electric submersible pump is protected thereby realize; prevent that it is excessive at startup immediate current; cause motor to damage; meanwhile, can remove electric submersible pump gas lock problem with the shortest time again.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view that the utility model electric submersible pump automatically terminates the device of gas lock;
Fig. 2 is the utility model use state diagram in actual applications;
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Wherein, body 100; Inner convex platform 101; Location snap ring 102; Spool 103; Runner 104; Flange 105; Internal thread 106; External screw thread 107; Flow string 200; Electric submersible pump 300;
The specific embodiment
Describe the technical solution of the utility model in detail below with reference to drawings and the specific embodiments, so as clearer, understand utility model essence of the present utility model intuitively.
As shown in Figure 1, a kind of electric submersible pump providing for the utility model automatically terminates the device of gas lock, it comprises body 100, described body 100 in tubular construction, in the body 100 of described tubular structure, be provided with an inner convex platform 101 integrated with it, upper end in described inner convex platform 101 is provided with a location snap ring 102 near described inner convex platform 101 certain distances, between described location snap ring 102 and inner convex platform 101, be arranged with the spool 103 of a movable movement, the middle part of described spool 103 has a runner 104.
It should be noted that, the length of described spool 103 is not less than the distance between described inner convex platform 101 and described location snap ring 102.
The upper end that it is emphasized that described spool 103 is provided with a flange 104, and lower end is tapered, and band runner spool 103 is arranged between described inner convex platform 101 and location snap ring 102 by described flange 104.
In the present embodiment, described spool 103 is stainless steel, makes long service life.
And meanwhile, the size of described runner 104 is adjustable.Specifically; the large I of described runner 104 is selected according to electric submersible pump 300 situations of different offshore oil producing wells; to greatest extent electric submersible pump 300 is protected thereby realize; prevent that it is excessive at startup immediate current; cause motor to damage; meanwhile, can remove electric submersible pump 300 gas lock problems with the shortest time again.
Further, the body of described tubular structure both ends open Shang Xia 100; Opening in snap ring 102 one end, described location is internal thread 106, so that the body 100 of described tubular structure is connected with flow string 200; Opening in described inner convex platform 101 one end is external screw thread 107, so that described tubular structure body 100 is connected with the electric pump outlet tubing string of electric submersible pump 300.
For ease of more thorough understanding operating principle of the present utility model, do further simple declaration with the use state diagram in actual applications of the utility model shown in Fig. 2, roughly operating principle of the present utility model is: electric submersible pump automatically terminates gas locking device, occur after gas lock termination of pumping at electric submersible pump 300, electric submersible pump 300 shown in figure is around gas entirely, the upper flow of the body 100 of tubular structure is by the spool by being provided with runner 104 103, under the effect of pressure reduction, flow to the bottom of the body 100 of tubular structure, the upper pressure of the body 100 of tubular structure is P1, bottom pressure is P2, P2 is the static pressure of oil well in this position, in the time that the upper pressure P1 of the body 100 of tubular structure is less than P2 after liquid-column height declines, electric submersible pump 300 gas is around provided with the spool 103 with runner 104 under the effect of pressure in the body 100 by tubular structure, be discharged to the top of the body 100 of this tubular structure, now electric submersible pump 300 is submerged in well liquid again, gas lock is removed.
In sum, can learn, after at sea oilfield producing well electric submersible pump generation gas lock is closed down, the utility model electric submersible pump automatically terminates the device of gas lock, fluid in its top flow string 200 is by the described spool 103 that is provided with runner 104, under the effect of gravity, flow to the bottom of the body 100 of this tubular structure, bottom pressure at the body 100 of this tubular structure is greater than after its upper pressure, packing causes the gas of electric submersible pump gas lock upwards to discharge by the described spool 103 that is provided with runner 104 around electric submersible pump 300, thereby realize electric submersible pump and automatically terminate gas lock fault.
The utility model is in the time of producing well generation gas lock, electric submersible pump 300 used can automatically terminate gas lock, without additional too many cost, offshore oilfield producing well can be resumed production fast, improve the production time efficiency of oil well, avoid the loss of output, meanwhile, with respect to traditional artificial releasing gas lock, intervene without personnel, the operating risk that has reduced the marine releases of personnel, saved a large amount of operating costs of oil well failure processing, and reliability is strong, safety factor is high.
Above said content is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model manual and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. an electric submersible pump automatically terminates the device of gas lock, comprise body, it is characterized in that: described body in tubular construction, in the body of described tubular structure, be provided with an inner convex platform integrated with it, upper end in described inner convex platform is provided with a location snap ring near described inner convex platform certain distance, the spool that is arranged with a movable movement between described location snap ring and inner convex platform, the middle part of described spool has a runner.
2. electric submersible pump according to claim 1 automatically terminates the device of gas lock, it is characterized in that: the length of described spool is not less than the distance of described inner convex platform and described locator card interannular.
3. electric submersible pump according to claim 2 automatically terminates the device of gas lock, it is characterized in that: the upper end of described spool is provided with a flange, and lower end is tapered, and band runner spool is arranged between described inner convex platform and location snap ring by described flange.
4. the device that automatically terminates gas lock according to the electric submersible pump described in claim 1-3 any one, is characterized in that: described spool is stainless steel.
5. electric submersible pump according to claim 1 automatically terminates the device of gas lock, it is characterized in that: the size of described runner is adjustable.
6. electric submersible pump according to claim 1 automatically terminates the device of gas lock, it is characterized in that: the upper and lower both ends open of described tubular structure body; Opening in snap ring one end, described location is internal thread, so that described tubular structure body is connected with flow string; Be external screw thread in the opening of described inner convex platform one end, so that described tubular structure body is connected with electric submersible pump electric pump outlet tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659004.1U CN203685135U (en) | 2013-10-24 | 2013-10-24 | Electric submersible pump airlock automatic releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659004.1U CN203685135U (en) | 2013-10-24 | 2013-10-24 | Electric submersible pump airlock automatic releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685135U true CN203685135U (en) | 2014-07-02 |
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ID=51007054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320659004.1U Expired - Fee Related CN203685135U (en) | 2013-10-24 | 2013-10-24 | Electric submersible pump airlock automatic releasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573223A (en) * | 2013-10-24 | 2014-02-12 | 中国海洋石油总公司 | Automatic airlock eliminating device of electric submersible pump |
-
2013
- 2013-10-24 CN CN201320659004.1U patent/CN203685135U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573223A (en) * | 2013-10-24 | 2014-02-12 | 中国海洋石油总公司 | Automatic airlock eliminating device of electric submersible pump |
| CN103573223B (en) * | 2013-10-24 | 2016-08-17 | 中国海洋石油总公司 | A kind of electric submersible pump automatically terminates the device of gas lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC (China) Limited Zhanjiang Branch Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 China oil tower, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee before: CNOOC (China) Limited Zhanjiang Branch Patentee before: China National Offshore Oil Corporation |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20201024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |