CN204532152U - One is surged the built-in slips of pressure-bearing - Google Patents
One is surged the built-in slips of pressure-bearing Download PDFInfo
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- CN204532152U CN204532152U CN201520046360.5U CN201520046360U CN204532152U CN 204532152 U CN204532152 U CN 204532152U CN 201520046360 U CN201520046360 U CN 201520046360U CN 204532152 U CN204532152 U CN 204532152U
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- bearing
- slips
- slip
- alveolus
- hydraulic cylinder
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Abstract
The utility model provides one to surge the built-in slips of pressure-bearing, comprise housing, load-bearing slip dog, anti-jack slips block teeth, slip spider, hydraulic cylinder, the two ends up and down of its middle shell can be connected and form seal cavity with wellhead blowout preventor and snubbing serving machine by upper lower flange; Two slip spider symmetries are arranged in housing sidewall, the inner of each slip spider is respectively equipped with alveolus and lower alveolus, load-bearing slip dog and anti-jack slips block teeth are fixed in upper and lower alveolus respectively by caging bolt hole and caging bolt, adopt hydraulic drive to be connected between the outer end of each slip spider and the plunger rod of hydraulic cylinder.The utility model can bear well inner high voltage and stop the liquid in well, gas leaks outside, and can be supported the use with blowout preventer set and snubbing serving machine by the upper and lower adpting flange that is provided with of housing, effectively meet the special process demand working go into the well interior tubing string or instrument in situation with pressure.
Description
Technical field
The utility model relates to a kind of Oil Field power tool, is specifically related to one and surges the built-in slips of pressure-bearing.
Background technology
Slips is drilling well, be used for blocking in workover treatment and hang the instrument holding tubing string in well, stops tubing string to move up or down, has been convenient to lower tubular column shackle or upper button, or has implemented other technological measures.Slips is divided into three-chip type, four-piece type and multiple-piece by the quantity of slips body; Slips is divided into drill pipe slip, drill collar slips, casing slip and safety slip by purposes.Above-mentioned different types of slips is all open, although the gravity that can bear on vertical direction or upper top power, conventional drilling and repairing well construction needs can be met, but because slips is not airtight, can not high pressure be born, therefore can not meet the special construction technique in hydraulic oil, gas, water well drilling.
Such as, in snubbing serving construction, owing to there is high pressure at oil jacket annular space and well head, existing slips is open, well inner high voltage can not be born, the liquid stoped in well, gas leaks outside, cannot realize using with blowout preventer set and the assembly alive of snubbing serving cleverness, carry out with pressure lower tubular column operation.
Utility model content
For above deficiency, the utility model provides one to surge the built-in slips of pressure-bearing, can meet the special process demand working go into the well interior tubing string or instrument in situation with pressure.
The technical solution of the utility model: one is surged the built-in slips of pressure-bearing, comprise housing, load-bearing slip dog, anti-jack slips block teeth, slip spider, hydraulic cylinder, plunger rod and plunger is comprised in hydraulic cylinder, the two ends up and down of its middle shell are provided with upper flange and lower flange, and upper flange and lower flange can be connected with wellhead blowout preventor and snubbing serving machine and form seal cavity; Two slip spider symmetries are arranged in housing sidewall, the inner of each slip spider is respectively equipped with alveolus and lower alveolus, load-bearing slip dog is fixed in upper alveolus by caging bolt hole and caging bolt, anti-jack slips block teeth are fixed in lower alveolus by caging bolt hole and caging bolt, adopt hydraulic drive to be connected between the outer end of each slip spider and the plunger rod of hydraulic cylinder.
The outer end of each slip spider is provided with T-shaped link slot, and in hydraulic cylinder, one end of plunger rod is T-shaped connector, is then achieved a fixed connection by T-shaped link slot, T-shaped connector between slip spider and plunger rod.
In hydraulic cylinder, the end of plunger rod is also provided with manual locking bolt.
The profile of described load-bearing slip dog and anti-jack slips block teeth is semicircular, is fixedly connected with inverted wedge at Semicircular dorsal part, and the lozenges be provided with in this wedge and alveolus is connected.
The utility model can bear well inner high voltage and stop the liquid in well, gas leaks outside, and can be supported the use with blowout preventer set and snubbing serving machine by the upper and lower adpting flange that is provided with of housing, effectively meet the special process demand working go into the well interior tubing string or instrument in situation with pressure, and have the following advantages simultaneously:
(1) slips of the present utility model is provided with load-bearing slip dog and anti-jack slips block teeth simultaneously, therefore has load-bearing and anti-top dual-use function, can effectively prevent tubing string from falling in well or scurrying out in well;
(2) slips of the present utility model adopts hydraulically powered mode, has that folding speed is fast, slips snap-in force large, card tubing string card obtains the advantage such as tightly;
(3) then achieved a fixed connection by T-shaped link slot, T-shaped connector between the utility model slip spider and plunger rod, add fastness and stability;
(4) the utility model is provided with manual locking bolt on hydraulic cylinder, adds security performance;
(5) dorsal part of slip dog is designed to wedge shape by the utility model, the interior surface of alveolus is designed to lozenges, when slip dog is slided along the face of alveolus under the effect of frictional force, slip dog produces automatic wedging function, tubing string is blocked in wedging, tubing string gravity or upper top power larger, block teeth and tubing string card must be tighter.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model.
Fig. 3 is the structural representation of the utility model plunger and plunger rod.
Fig. 4 is the structural representation of the utility model slip spider.
Fig. 5 is the structural representation of the utility model load-bearing slip dog or anti-jack slips block teeth.
Fig. 6 is the right view of Fig. 5.
Detailed description of the invention
As depicted in figs. 1 and 2, one is surged the built-in slips of pressure-bearing, comprises housing 1, load-bearing slip dog 3, anti-jack slips block teeth 4, slip spider 5, hydraulic cylinder 6, comprises plunger rod 7 and plunger 10 in hydraulic cylinder 6.The two ends up and down of its middle shell 1 are provided with upper flange 2 and lower flange 11, and upper flange 2 and lower flange 11 can be connected with wellhead blowout preventor and snubbing serving machine and form seal cavity, can bear the high pressure in well.Two slip spider 5 symmetries are arranged on housing 1 sidewall, the inner of each slip spider 5 is respectively equipped with upper and lower two alveolus 15, load-bearing slip dog 3 is fixed in upper alveolus by caging bolt hole 14 and caging bolt, anti-jack slips block teeth 4 are fixed in lower alveolus by caging bolt hole 14 and caging bolt, prevent slip dog from departing from alveolus in the course of the work.The effect of load-bearing slip dog 3 is the outstanding tubing strings held in well of clamping, and the gravity that in carrying well, tubing string is downward, stops tubing string in well to move down.The effect of anti-jack slips block teeth 4 is the outstanding tubing strings held in well of clamping, bears in the well inner high voltage upwardly upper top power that produces of tubing string, stops tubing string to move up, prevent tubing string in well from spraying in well under the effect of well inner high voltage.Hydraulic drive is adopted to be connected between the outer end of each slip spider 5 and the plunger rod 7 of hydraulic cylinder 6.
In hydraulic cylinder 6, the end of plunger rod 7 is also provided with manual locking bolt 8, and its object has made safeguard protection effect, after slips is closed, withstand connecting rod with manual locking bolt, and when preventing hydraulic fluid leak, slips is automatically opened and caused tubing string fall into well or scurry out.Plunger rod 7 is provided with guard shield 9 with the junction of manual locking bolt 8.
As shown in Figure 3 and Figure 4, the outer end of each slip spider 5 is provided with T-shaped link slot 13, and in hydraulic cylinder 6, one end of plunger rod 7 is T-shaped connector 12, is then achieved a fixed connection by T-shaped link slot 13, T-shaped connector 12 between slip spider 5 and plunger rod 7.
As shown in Fig. 4, Fig. 5 and Fig. 6, the profile of described load-bearing slip dog 3 and anti-jack slips block teeth 4 is semicircular, is fixedly connected with inverted wedge at Semicircular dorsal part, and the lozenges be provided with in this wedge and alveolus is connected.
During use, the utility model and blowout preventer set are arranged on operation wellhead, hydraulic power pipeline are connected in outside corresponding hydraulic control system.By pressure testing operational procedure to the utility model and blowout preventer set pressure testing qualified.The corresponding gauge tap of control operation bench far away of outside is placed in out position, the hydraulic oil of external hydraulic system enters hydraulic cylinder 6 of the present utility model and promotes plunger 10 and travels forward, plunger 10 drives plunger rod 7 to promote slip spider 5, makes load-bearing slip dog 3, anti-jack slips block teeth 4 are adjacent to occlusion tubing string.When tubing string self gravitation is greater than the upper top power of borehole pressure generation, tubing string has the trend moved down, and load-bearing slip dog 3 wedging is blocked and hanged the tubing string held in well, bears the power that tubing string is downward, stops tubing string in well to move down.When tubing string self gravitation is less than the upper top power of borehole pressure generation, tubing string has the trend moved up, and anti-jack slips block teeth 4 wedging is blocked and hanged the tubing string held in well, bears tubing string top power upwards, stops tubing string in well to move up.Block for a long time using the utility model and hang when holding tubing string, should turn clockwise manually tightly lock bolt 8, prevents fortuitous event lower slips from automatically opening release tubing string.When slips release tubing string opened by needs, at control operation bench far away, corresponding gauge tap is placed in off-position, the plunger 10 that hydraulic pressure promotes in hydraulic cylinder 6 moves backward, and drive plunger rod 7, slip spider 5 move backward, make load-bearing slip dog 3 and anti-jack slips block teeth 4 unclamp release tubing string.
Claims (4)
1. the built-in slips of pressure-bearing of surging, it is characterized in that: comprise housing (1), load-bearing slip dog (3), anti-jack slips block teeth (4), slip spider (5), hydraulic cylinder (6), plunger rod (7) and plunger (10) is comprised in hydraulic cylinder (6), the two ends up and down of its middle shell (1) are provided with upper flange (2) and lower flange (11), and upper flange (2) and lower flange (11) can be connected with wellhead blowout preventor and snubbing serving machine and form seal cavity; Two slip spider (5) symmetries are arranged on housing (1) sidewall, the inner of each slip spider (5) is respectively equipped with alveolus and lower alveolus, load-bearing slip dog (3) is fixed in upper alveolus by caging bolt hole and caging bolt, anti-jack slips block teeth (4) are fixed in lower alveolus by caging bolt hole and caging bolt, adopt hydraulic drive to be connected between the outer end of each slip spider (5) and the plunger rod (7) of hydraulic cylinder (6).
2. one as claimed in claim 1 is surged the built-in slips of pressure-bearing, it is characterized in that: the outer end of each slip spider (5) is provided with T-shaped link slot, in hydraulic cylinder (6), one end of plunger rod (7) is T-shaped connector, is then achieved a fixed connection by T-shaped link slot, T-shaped connector between slip spider (5) and plunger rod (7).
3. one as claimed in claim 1 is surged the built-in slips of pressure-bearing, it is characterized in that: in hydraulic cylinder (6), the end of plunger rod (7) is also provided with manual locking bolt (8).
4. one as claimed in claim 1 is surged the built-in slips of pressure-bearing, it is characterized in that: the profile of described load-bearing slip dog (3) and anti-jack slips block teeth (4) is semicircular, be fixedly connected with inverted wedge at Semicircular dorsal part, the lozenges be provided with in this wedge and alveolus is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046360.5U CN204532152U (en) | 2015-01-23 | 2015-01-23 | One is surged the built-in slips of pressure-bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046360.5U CN204532152U (en) | 2015-01-23 | 2015-01-23 | One is surged the built-in slips of pressure-bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532152U true CN204532152U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046360.5U Expired - Fee Related CN204532152U (en) | 2015-01-23 | 2015-01-23 | One is surged the built-in slips of pressure-bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532152U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952394A (en) * | 2016-06-21 | 2016-09-21 | 崔斌 | Special elevator structure for pressurized workover of oil-gas field |
| CN106150403A (en) * | 2016-08-26 | 2016-11-23 | 陕西斯达煤矿安全装备有限公司 | A kind of drill head using mechanical gripper |
| CN106246119A (en) * | 2016-09-21 | 2016-12-21 | 杨颖辉 | Closed spinner slips |
| CN112983301A (en) * | 2021-03-25 | 2021-06-18 | 江苏诚创智能装备有限公司 | Multifunctional hydraulic power slip |
| CN118008170A (en) * | 2024-04-10 | 2024-05-10 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
| CN118008170B (en) * | 2024-04-10 | 2024-06-21 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
-
2015
- 2015-01-23 CN CN201520046360.5U patent/CN204532152U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952394A (en) * | 2016-06-21 | 2016-09-21 | 崔斌 | Special elevator structure for pressurized workover of oil-gas field |
| CN106150403A (en) * | 2016-08-26 | 2016-11-23 | 陕西斯达煤矿安全装备有限公司 | A kind of drill head using mechanical gripper |
| CN106150403B (en) * | 2016-08-26 | 2018-08-03 | 陕西斯达防爆安全科技股份有限公司 | A kind of drill head using mechanical gripper |
| CN106246119A (en) * | 2016-09-21 | 2016-12-21 | 杨颖辉 | Closed spinner slips |
| CN106246119B (en) * | 2016-09-21 | 2018-04-06 | 杨颖辉 | Closed spinner slips |
| CN112983301A (en) * | 2021-03-25 | 2021-06-18 | 江苏诚创智能装备有限公司 | Multifunctional hydraulic power slip |
| CN112983301B (en) * | 2021-03-25 | 2023-08-18 | 江苏诚创智能装备有限公司 | Multifunctional hydraulic power slip |
| CN118008170A (en) * | 2024-04-10 | 2024-05-10 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
| CN118008170B (en) * | 2024-04-10 | 2024-06-21 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wei Wenke Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |