CN203603818U - Low snubbing operation device - Google Patents
Low snubbing operation device Download PDFInfo
- Publication number
- CN203603818U CN203603818U CN201320800456.7U CN201320800456U CN203603818U CN 203603818 U CN203603818 U CN 203603818U CN 201320800456 U CN201320800456 U CN 201320800456U CN 203603818 U CN203603818 U CN 203603818U
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- preventer
- clamping device
- pipe clamping
- sealing
- pressure self
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Abstract
The utility model discloses a low snubbing operation device which comprises a moving pipe clamping device, a lower beam, a hydraulic cylinder, an annular spraying-prevention device and a spraying-prevention device assembly. The lower beam is arranged on a well opening and the bottom end of the hydraulic cylinder is connected to the lower beam. The upper end of the hydraulic cylinder is connected below the moving pipe clamping device. The lower end of the spraying-prevention device assembly is connected with a well opening oil pipe in a butt mode through a flange and the upper end of the spraying-prevention device assembly is connected with the annular spraying-prevention device through a flange. The upper end of the annular spraying-prevention device is connected with a high-pressure self seal. The moving pipe clamping device is higher than the high-pressure self seal. The low snubbing operation device further comprises a workbench. The workbench is seated above the periphery of the well opening through a supporting frame. The low snubbing operation device can meet the application requirements of snubbing operation and is high in operability, capable of being matched with a 18-m small well repairing frame, high in working efficiency and capable of obviously lowering operation cost.
Description
Technical field
The utility model relates to oil exploitation well operations equipment, specifically a kind of short snubbing serving device.
Background technology
At present, oil-water well snubbing serving is under well head has certain pressure, and not open flow, not kill-job and the construction operation that carries out can successfully solve environment pollution and oil layer pollution problem in operation process, enjoys favor.And to realize snubbing serving, must use snubbing serving equipment to realize the Loading Control of wellhead sealing blowout prevention and tubing string.The snubbing serving device that patent is announced has at present been brought into play effect in enforcement oil-water well snubbing serving process, and but existence is highly higher, is generally 4-5m, operability is bad, can not realize with light maintenance operation supportingly, operating efficiency is low, the shortcoming that operating cost is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of short snubbing serving device, meets the needs of snubbing serving application, workable, can realize with 18m light maintenance derrick supportingly, and operating efficiency is higher, and operating cost significantly reduces.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of short snubbing serving device, comprise the pipe clamping device that moves about, lower transverse beam, hydraulic cylinder, ring-like preventer, preventer assembly, described lower transverse beam is placed on well head, and described hydraulic cylinder bottom is connected on lower transverse beam, and the upper end of hydraulic cylinder is connected to the below of the pipe clamping device that moves about, well mouth oil pipe is docked by flange in described preventer assembly lower end, and upper end connects ring-like preventer by flange; Described ring-like preventer upper end is connected with high-pressure self-sealing, described in move about the height of pipe clamping device higher than the height of high-pressure self-sealing.
Also comprise working platform, this working platform is seated in well head week side top by support frame, the bottom of described support frame is provided with stands on ground base, above described working platform, periphery upwards arranges railing, be connected on support frame by bearing diagonal to next, described working platform upper surface will be lower than the height of high-pressure self-sealing.
Described preventer assembly comprises and is connected with successively that full envelope blowout preventer, 31/2 ＂ partly seal blowout preventer, 27/8 ＂ partly seals blowout preventer, fixing pipe clamping device from top to bottom, is integrated fabricated structure.
The slips of pipe clamping device and fixing pipe clamping device of moving about is as reducing slips, under the prerequisite of not changing slips, can carry out mounting board to 27/8 diameter oil pipe, also can carry out mounting board to 31/2 ＂ diameter oil pipe.
Described high-pressure self-sealing is made up of housing and glue core, and wherein glue core bottom is built in the housing of annular preventer, and high-pressure self-sealing housing, for flange form designs, is connected with annular preventer upper press cover by bolt.
Compared to prior art, the utlity model has following beneficial effect:
1, utilize this device can effectively realize the sealing blowout prevention of oil jacket annular space in oil-water well snubbing serving process and the Loading Control to tubing string.
2, in device, fix pipe clamping device and the pipe clamping device slips that moves about is reducing slips, the mounting board that can realize 31/2 ＂ diameter oil pipe also can be realized the mounting board of 27/8 diameter oil pipe, removes the trouble of changing slips in use procedure from, saves the activity duration.
3, in device, ring-like preventer designs for short, and more conventional annular preventer height is low, and high-pressure self-sealing is built in annular preventer inside, makes snubbing serving device height lower.
4, device operating platform only has 1.8m, workable, can realize with 18m light maintenance derrick supportingly, and operating efficiency is higher, and operating cost significantly reduces.
Accompanying drawing explanation
Fig. 1 is a kind of short snubbing serving apparatus structure schematic diagram of the present utility model.
In figure: the pipe clamping device 1 that moves about, high-pressure self-sealing 2, ring-like preventer 3, blowout preventer set 4, lower transverse beam 5, base 6, hydraulic cylinder 7, support frame 8, working platform 9.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
With reference to accompanying drawing 1, a kind of short snubbing serving device, comprise the pipe clamping device 1 that moves about, lower transverse beam 5, hydraulic cylinder 7, ring-like preventer 3, preventer assembly 4, described lower transverse beam is placed on well head, described hydraulic cylinder bottom is connected on lower transverse beam, the upper end of hydraulic cylinder 7 is connected to the below of the pipe clamping device 1 that moves about, and well mouth oil pipe is docked by flange in described preventer assembly 4 lower ends, and upper end connects ring-like preventer 3 by flange; Described ring-like preventer upper end is connected with high-pressure self-sealing 2, described in move about the height of pipe clamping device higher than the height of high-pressure self-sealing.Also comprise working platform 9, this working platform is seated in well head week side top by support frame, the bottom of described support frame 8 is provided with stands on ground base 6, above described working platform, periphery upwards arranges railing, be connected on support frame by bearing diagonal to next, described working platform upper surface will be lower than the height of high-pressure self-sealing.
Described preventer assembly comprises and is connected with successively that full envelope blowout preventer, 31/2 ＂ partly seal blowout preventer, 27/8 ＂ partly seals blowout preventer, fixing pipe clamping device from top to bottom, is integrated fabricated structure.The slips of pipe clamping device and fixing pipe clamping device of moving about is as reducing slips, under the prerequisite of not changing slips, can carry out mounting board to 27/8 diameter oil pipe, also can carry out mounting board to 31/2 ＂ diameter oil pipe.Described high-pressure self-sealing is made up of housing and glue core, and wherein glue core bottom is built in the housing of annular preventer, and high-pressure self-sealing housing, for flange form designs, is connected with annular preventer upper press cover by bolt.The slips of pipe clamping device and fixing pipe clamping device of moving about is as reducing slips, under the prerequisite of not changing slips, can carry out mounting board to 27/8 diameter oil pipe, also can carry out mounting board to 31/2 ＂ diameter oil pipe.
While implementing snubbing serving, snubbing serving device is lifted to well in operation well head.Dock with wellhead flange by flange blowout preventer set lower end, and the well head of finishing device is installed.Play the movable sealing of guaranteeing tubing string when lower tubular column by high-pressure self-sealing 2 and annular preventer 3, when stopping work while maybe needing to change high-pressure self-sealing glue core 2 in centre, partly seal blowout preventer, 27/8 ＂ and partly seal blowout preventer and realize the static seal of tubing string by 31/2 ＂ in blowout preventer set 4.In the time there is no tubing string in well, the full envelope blowout preventer in blowout preventer set 4 is realized shut-in well.In the time that top power is greater than tubing string weight on tubing string, need to coordinate the mounting board of realizing tubing string to remove with hydraulic cylinder 7 and fixing pipe clamping device by the pipe clamping device 1 that moves about.
The specific embodiment is divided lifting tubing string and is transferred two processes of tubing string.In snubbing serving, owing to there being pressure in well, in the time that tubing string weight is less than borehole pressure to the upper top power of tubing string, occur top situation on tubing string, tubing string must load and remove.When lifting tubing string, first start fixed pipe clamping device, fixing pipe clamping device slips is clamped oil pipe, afterwards, start the pipe clamping device that moves about, the pipe clamping device slips that moves about is clamped after oil pipe, fixing pipe clamping device slips unclamps, the pipe clamping device lifting oil pipe together with hydraulic cylinder that moves about, is lifted to after fluid cylinder range, again closes fixing pipe clamping device, unclamp the pipe clamping device that moves about, the pipe clamping device that moves about is descending together with hydraulic cylinder, repeats above step, completes lift pipe string operation; While transferring tubing string, first utilize fixing pipe clamping device slips to clamp oil pipe, start afterwards the pipe clamping device that moves about, hydraulic cylinder drives the pipe clamping device that moves about to go upward to together the range of fluid cylinder, clamps oil pipe, and fixing pipe clamping device slips unclamps oil pipe, the Loading Control power of utilizing hydraulic cylinder, is lowered to oil pipe.Repeat above step, complete lower tubular column operation.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a short snubbing serving device, it is characterized in that, comprise the pipe clamping device that moves about, lower transverse beam, hydraulic cylinder, ring-like preventer, preventer assembly, described lower transverse beam is placed on well head, described hydraulic cylinder bottom is connected on lower transverse beam, the upper end of hydraulic cylinder is connected to the below of the pipe clamping device that moves about, and well mouth oil pipe is docked by flange in described preventer assembly lower end, and upper end connects ring-like preventer by flange; Described ring-like preventer upper end is connected with high-pressure self-sealing, described in move about the height of pipe clamping device higher than the height of high-pressure self-sealing.
2. a kind of short snubbing serving device according to claim 1, it is characterized in that, also comprise working platform, this working platform is seated in well head week side top by support frame, the bottom of described support frame is provided with stands on ground base, above described working platform, periphery upwards arranges railing, is connected on support frame by bearing diagonal to next, and described working platform upper surface will be lower than the height of high-pressure self-sealing.
3. a kind of short snubbing serving device according to claim 1, it is characterized in that, described preventer assembly comprises and is connected with successively that full envelope blowout preventer, 31/2 ＂ partly seal blowout preventer, 27/8 ＂ partly seals blowout preventer, fixing pipe clamping device from top to bottom, is integrated fabricated structure.
4. a kind of short snubbing serving device according to claim 3, it is characterized in that, the slips of pipe clamping device and fixing pipe clamping device of moving about is as reducing slips, under the prerequisite of not changing slips, can carry out mounting board to 27/8 diameter oil pipe, also can carry out mounting board to 31/2 ＂ diameter oil pipe.
5. a kind of short snubbing serving device according to claim 1, it is characterized in that, described high-pressure self-sealing is made up of housing and glue core, wherein glue core bottom is built in the housing of annular preventer, high-pressure self-sealing housing, for flange form designs, is connected with annular preventer upper press cover by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800456.7U CN203603818U (en) | 2013-12-09 | 2013-12-09 | Low snubbing operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800456.7U CN203603818U (en) | 2013-12-09 | 2013-12-09 | Low snubbing operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603818U true CN203603818U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320800456.7U Expired - Fee Related CN203603818U (en) | 2013-12-09 | 2013-12-09 | Low snubbing operation device |
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| Country | Link |
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| CN (1) | CN203603818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481424A (en) * | 2014-11-07 | 2015-04-01 | 中国石油集团长城钻探工程有限公司 | Sectional cutting tubing string lifting process of no-killing operation |
| CN109415928A (en) * | 2016-05-02 | 2019-03-01 | 卡梅伦技术有限公司 | Preventer with wide body flange |
| CN111911095A (en) * | 2020-08-18 | 2020-11-10 | 中国石油化工股份有限公司 | Pressurized workover device and pressurized workover method for low-pressure oil-water well |
-
2013
- 2013-12-09 CN CN201320800456.7U patent/CN203603818U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481424A (en) * | 2014-11-07 | 2015-04-01 | 中国石油集团长城钻探工程有限公司 | Sectional cutting tubing string lifting process of no-killing operation |
| CN109415928A (en) * | 2016-05-02 | 2019-03-01 | 卡梅伦技术有限公司 | Preventer with wide body flange |
| US11098550B2 (en) | 2016-05-02 | 2021-08-24 | Schlumberger Technology Corporation | Blowout preventer with wide flange body |
| CN109415928B (en) * | 2016-05-02 | 2021-10-08 | 斯伦贝谢技术有限公司 | Blowout preventer with wide flange body |
| US11174696B2 (en) | 2016-05-02 | 2021-11-16 | Schlumberger Technology Corporation | Blowout preventer with choke and kill line pass through conduits |
| CN111911095A (en) * | 2020-08-18 | 2020-11-10 | 中国石油化工股份有限公司 | Pressurized workover device and pressurized workover method for low-pressure oil-water well |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140521 Termination date: 20151209 |
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| EXPY | Termination of patent right or utility model |