CN110847827A - Quick connecting device for integral well head - Google Patents
Quick connecting device for integral well head Download PDFInfo
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- CN110847827A CN110847827A CN201911288576.1A CN201911288576A CN110847827A CN 110847827 A CN110847827 A CN 110847827A CN 201911288576 A CN201911288576 A CN 201911288576A CN 110847827 A CN110847827 A CN 110847827A
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- 238000007789 sealing Methods 0.000 claims description 9
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 58
- 238000009434 installation Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011900 installation process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 9
- 238000005553 drilling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920001221 xylan Polymers 0.000 description 1
- 150000004823 xylans Chemical class 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a quick connecting device for an integral wellhead, which comprises a first connecting body, a second connecting body and a pressing part for connecting the first connecting body and the second connecting body, wherein the pressing part is used for pushing the second connecting body to move relative to the first connecting body and fixedly pressing the second connecting body and the first connecting body, the first connecting body is provided with a locking part for pushing the pressing part to move, the moving direction of the pressing part is mutually vertical to the moving direction of the second connecting body, the connecting end of the first connecting body is provided with a connecting groove, the connecting end of the second connecting body is inserted into the connecting groove of the first connecting body for arrangement, so that quick integral installation can be realized, trouble and labor are saved, the damage of parts caused in the installation process is reduced, and the connection is stable, and the moment of torsion is little during the installation, and is laborsaving, and adapting unit all is located inside setting, effectively avoids the environmental corrosion.
Description
Technical Field
The invention relates to the technical field of petroleum equipment, in particular to a connecting device in a wellhead device, which is a quick connecting device for an integral wellhead.
Background
At present, in the market, when a land platform and an ocean platform are connected with drilling and production equipment, API (application program interface) flanges or clamp connectors are used for connection. For example, in wellhead connection, the mounting and dismounting are generally realized by flanges, and the two actions of clamping an upper flange and a lower flange together and releasing the clamped upper flange and the clamped lower flange are required to be realized so as to meet the requirement of field use, the traditional connection mode is flange type symmetrical flange connection, the flange is fixed by manually tightening bolts during flange installation, the installation is time-consuming, the bolt torque is large, the phenomenon of wire slipping is easily caused by overlarge installation force, the labor intensity of operators is high during bolt locking, the time is consumed, the efficiency is low, but also can cause rusting when being used in an environment easy to corrode for a long time, the rusted bolt is difficult to rotate when being disassembled, therefore, great inconvenience is brought to disassembly, the whole bolt is damaged by excessive force, the bolt cannot be normally used, only cutting can be performed, and then a new bolt is replaced for fixing.
Therefore, there is a need for an improvement to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a quick connecting device for an integral wellhead.
The technical scheme of the invention is as follows:
the utility model provides a quick connecting device for integral well head, includes first connecting body, second connecting body and connects the portion of compressing tightly of first connecting body and second connecting body, the portion of compressing tightly is used for promoting second connecting body for first connecting body direction removes, and will second connecting body with first connecting body pressure is fixed, be provided with the promotion on the first connecting body the locking portion that the portion of compressing tightly removed, the moving direction of the portion of compressing tightly with the moving direction mutually perpendicular of second connecting body.
As a preferable technical solution, the connection end of the first connection body is provided with a connection groove, and the connection end of the second connection body is inserted into the connection groove of the first connection body.
As a preferable technical scheme, a groove is formed in the inner side face, close to the connecting groove of the first connecting body, of the connecting end of the second connecting body, the groove is used for accommodating the pressing portion, and a first inclined plane is formed in one side, in contact with the pressing portion, of the groove.
As a preferred technical solution, the connection end of the first connection body is provided with a pressing groove, the pressing groove is used for installing the pressing portion, the pressing groove is communicated with the groove of the connection end of the first connection body, and the pressing portion in the pressing groove can move along the pressing groove and press the second connection body.
As a further preferable technical solution, the number of the pressing portions is at least two, and two adjacent pressing portions are provided at an interval from each other.
As a preferred technical scheme, a second inclined plane is arranged on one side, close to the groove, of the pressing portion, the second inclined plane is matched with the first inclined plane of the groove, one side, far away from the groove, of the pressing portion is connected with the locking portion, a clamping groove is arranged at the joint, and an opening is formed in the clamping groove.
As a preferred technical scheme, the locking portion comprises a locking portion body and a clamping block, the clamping block and the locking portion body are integrally arranged, the clamping block is installed in the clamping groove of the pressing portion, and the locking portion body penetrates through the opening of the clamping groove to be installed.
As a further preferred technical solution, the locking portion is installed in a locking seat of the first connecting body, the locking seat is fixedly connected with the first connecting body, and the locking seat is in threaded connection with the locking portion body.
Principle of locking
The locking part body is rotated to move the locking part body along the radial direction of the first connecting body to drive the pressing part to move along the radial direction of the first connecting body, when the locking part body is rotated clockwise, the locking part body moves towards the central axis of the first connecting body along the radial direction of the first connecting body, the locking part body pushes the pressing part to move towards the second connecting body, at the moment, in order to realize the quick connection and fixation of the first connecting body and the second connecting body, the pressing part is contacted with the second connecting body, at the moment, the first inclined surface of the second connecting body corresponds to the second inclined surface of the pressing part, the first inclined plane of the second connecting body is provided with an inward thrust, the second connecting body cannot move inwards, and only can move upwards relative to the second inclined plane of the pressing part, namely, the second connecting body moves along the direction close to the first connecting body, so that the first connecting body and the second connecting body are quickly connected.
Principle of detachment
Through rotatory locking portion body, here locking portion body is selected as locking screw, locking screw moves to the outside along the locking seat, drive simultaneously and the clamping part of locking portion joint moves to the outside, it is synchronous in footpath between locking portion and the clamping part, the second inclined plane of clamping part reduces to compressing tightly of the first inclined plane of second connection body gradually this moment, the body is connected to the second and received the power that compresses tightly and reduce gradually, just separable between the body is connected to first connection body and second, after the clamping part breaks away from the recess of body is connected to the second completely, at this moment, connect the body with the second and shift out, the clamping part can not restrict the body to the second, realize dismantling, the novel structure is reasonable, sealing reliability, the bearing capacity is good, assembly dismantlement time spent is few, workman low in labor strength.
As a further preferable technical solution, a gasket is further provided between the first connecting body and the second connecting body.
Principle of sealing
The quick connection of body is connected with the second to first connecting body, triggers the sealing washer through compressing tightly, realizes that first connecting body and second are connected the sealed of body, installs dustproof O type circle 53 between locking portion body and locking seat for prevent that external dust or earth from getting into inside, prevent to lock the screw thread corrosion between this body and the locking seat.
As a further preferable technical solution, the compressing portions are uniformly distributed along the cross section of the first connecting body, the compressing portions may have an arc structure or a rectangular structure, and the compressing groove may have an arc structure or a rectangular structure.
The quick connecting device for the integral wellhead can realize quick integral installation, is trouble-saving and labor-saving, reduces the damage of parts in the installation process, is stable in connection, has small torque and labor-saving in installation, and effectively avoids environmental corrosion because the connecting parts are arranged inside.
Drawings
FIG. 1 is an installed cross-sectional view of the present invention;
FIG. 2 is an enlarged perspective view of the pressing portion of the present invention;
FIG. 3 is an enlarged perspective view of the locking portion of the present invention;
FIG. 4 is a schematic view of the compression section assembly of the present invention;
the sealing structure comprises a first connecting body 1, a pressing groove 11, a second connecting body 2, a groove 21, a first inclined surface 22, a pressing part 3, a second inclined surface 31, a clamping groove 32, an opening 33, a locking seat 4, a locking part 5, a locking part body 51, a clamping block 52, a dustproof O-shaped ring 53 and a sealing gasket 6.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present invention easily understandable, the present invention is further described below with reference to the specific drawings.
The first embodiment is as follows:
as shown in fig. 1, the overall structure of the present invention is installed in a cross-sectional view.
The utility model provides a quick connecting device for integral well head, includes first connecting body 1, second connecting body 2 and connects the portion 3 that compresses tightly of first connecting body 1 and second connecting body 2, the portion 3 that compresses tightly is used for promoting second connecting body 2 for 1 direction removal of first connecting body, and will second connecting body 2 with first connecting body 1 compresses tightly fixedly, be provided with the promotion on the first connecting body 1 the locking portion 5 that 3 removed of portion 3 compress tightly, the moving direction of portion 3 compress tightly with the moving direction mutually perpendicular of second connecting body 2.
Wherein first connection body and second connection body wholly are circular structure, the second connection body inserts the inside setting of recess of first connection body, link at first connection body is provided with mounting groove, be convenient for insert the inside realization of connecting with the second connection body, the unity of first connection body and second connection body internal diameter has been guaranteed like this, and the second connection body inserts first connection body part and realizes connecting, the occupation in space when having reduced the connection, the position at first connection body and second connection body radial contact surface sets up sealed the pad, when first connection body is tight with the second connection body clamp, sealed effect has been realized.
As a preferable technical solution, the connection end of the first connection body 1 is provided with a connection groove, and the connection end of the second connection body 2 is inserted into the connection groove of the first connection body 1.
As a preferable technical solution, a groove 21 is provided on an inner side surface of the connection end of the second connection body 2 close to the connection groove of the first connection body 1, the groove 21 is used for accommodating the pressing portion 3, and a first inclined surface 22 is provided on a side of the groove 21 contacting the pressing portion 3.
The compressing mechanism comprises a first connecting body, a second connecting body, a compressing part, a first connecting body, a second connecting body, a compressing part and a pressing part, wherein the compressing part is used for realizing the compressing between the second connecting body and the first connecting body, the compressing part moves along the first connecting body in the radial direction, the second connecting body moves along the first connecting body in the axial direction, the vertical change of the moving direction is realized, and as shown in figure 1, the included angle between the horizontal plane and the second inclined plane of the compressing part and the included angle between the horizontal plane and the first inclined plane of the first connecting body are both 20-30 degrees, the self-locking can be realized, and labor is saved during active compressing.
As a preferable technical solution, the connection end of the first connection body 1 is provided with a pressing groove 11, the pressing groove 11 is used for installing the pressing portion 3, the pressing groove 11 is communicated with the groove 21 of the connection end of the first connection body 1, and the pressing portion 3 in the pressing groove 11 can move along the pressing groove 11 and realize pressing of the second connection body 2.
As a further preferable technical solution, the number of the pressing portions 3 is at least two, and two adjacent pressing portions 3 are provided at intervals.
The pressing part can be composed of two or more structures with the same shape or different shapes, the pressing of the second connecting body can be realized simultaneously, the pressing part is uniformly distributed along the circumference of the central axis of the first connecting body, the pressing force can be uniformly applied when the pressing part is pressed, the pressing force is prevented from causing deviation, the pressing part is uniform, and the connection is stable.
As shown in fig. 2, as a preferable technical solution, a second inclined surface 31 is disposed on a side of the pressing portion 3 close to the groove 21, the second inclined surface 31 is matched with the first inclined surface 22 of the groove 21, a side of the pressing portion 3 away from the groove 21 is connected with the locking portion 5, a clamping groove 32 is disposed at a connection position, and an opening 33 is disposed on the clamping groove 32.
As shown in fig. 1 and 3, as a preferable technical solution, the locking portion 5 includes a locking portion body 51 and a latch 52, the latch 52 is integrally disposed with the locking portion body 51, the latch 52 is installed inside the slot 32 of the pressing portion 3, and the locking portion 5 body is installed through the opening 33 of the slot 32.
As a further preferable technical solution, the locking portion 5 is installed in the locking seat 4 of the first connecting body 1, the locking seat 4 is fixedly connected with the first connecting body 1, and the locking seat 4 is in threaded connection with the locking portion body 51.
Install dustproof O type circle 53 between locking portion body and locking seat for prevent that external dust or earth from getting into inside, prevent to lock the screw thread corrosion between this body and the locking seat.
As a further preferable technical solution, a gasket 6 is further provided between the first connecting body 1 and the second connecting body 2.
As a further preferable technical solution, the compressing portions 3 are uniformly distributed along the cross section of the first connecting body 1, the compressing portions 3 may have an arc-shaped structure or a rectangular structure, and the compressing groove 11 may have an arc-shaped structure or a rectangular structure.
In fig. 3, the locking portion is clamped with the pressing portion, a clamping block at the front end of the locking portion is arranged in a clamping groove of the pressing portion, the clamping block can be movably mounted in the clamping groove, the clamping block can rotate freely in the clamping groove and cannot move left and right, a locking portion body and the clamping block are integrally arranged, the diameter of the locking portion body is smaller than that of the clamping block, the locking portion body can penetrate through the opening, the clamping block is mounted in the clamping groove, the locking portion body is connected with a locking seat on the first connecting body through threads, the locking seat is welded on the first connecting body, and the locking seat can also be fixed on the first connecting body through bolts;
principle of locking
The locking part body is rotated to move the locking part body along the radial direction of the first connecting body to drive the pressing part to move along the radial direction of the first connecting body, when the locking part body is rotated clockwise, the locking part body moves towards the central axis of the first connecting body along the radial direction of the first connecting body, the locking part body pushes the pressing part to move towards the second connecting body, at the moment, in order to realize the quick connection and fixation of the first connecting body and the second connecting body, the pressing part is contacted with the second connecting body, at the moment, a first inclined plane of the second connecting body corresponds to a second inclined plane of the pressing part, inward thrust is received on the first inclined plane of the second connecting body, the second connecting body cannot move inwards, and only can move upwards relative to the second inclined plane of the pressing part, namely, move along the direction close to the first connecting body, so that the quick connection of the first connecting body and the second connecting body is realized, sealing of the first connecting body and the second connecting body is achieved by pressing the trigger sealing ring;
principle of detachment
Through rotatory locking portion body, here locking portion body is selected as locking screw, locking screw moves to the outside along the locking seat, drive simultaneously and the clamping part of locking portion joint moves to the outside, it is synchronous in footpath between locking portion and the clamping part, the second inclined plane of clamping part reduces to compressing tightly of the first inclined plane of second connection body gradually this moment, the body is connected to the second and received the power that compresses tightly and reduce gradually, just separable between the body is connected to first connection body and second, after the clamping part breaks away from the recess of body is connected to the second completely, at this moment, connect the body with the second and shift out, the clamping part can not restrict the body to the second, realize dismantling, the novel structure is reasonable, sealing reliability, the bearing capacity is good, assembly dismantlement time spent is few, workman low in labor strength.
Compare in traditional flange joint, well head quick connect drilling equipment has following technical performance characteristics:
the integral structure is as follows: when the device is installed, other bolts and nuts do not need to be installed;
easy repair: all wear components can be replaced in the field;
high-requirement design criteria: the method can be suitable for acidic working condition environments;
the installation torque is small: the surface Xylan of the locking screw is processed, so that friction is reduced, and meanwhile, the tightening torque is reduced due to a 25-degree inclined plane;
and (3) quick installation: after the axes are aligned very well, no side-to-side swinging occurs, and the installation time can be reduced by 50% compared with the connection of a conventional flange by adopting a quick connection device.
Reducing the OD of the well head: the flange of the traditional flange is not provided, and the maximum outer diameter of the wellhead body is reduced;
repeated use for many times: overlaying 625 the backing ring groove to increase the use times;
designing an offline test hole: in the well drilling process, when the backing ring connection test is carried out, a pressure test plug does not need to be installed at the well head, the test of the backing ring connection can be completed through the backing ring test hole, and the test time is greatly shortened.
Example two:
install quick connecting device in integral well head upper portion, through this body of locking, this body of here locking portion can be locking screw, promotes the briquetting, excites sealed the pad. And pressure testing is carried out on the site from a plurality of testing holes, and the testing results meet the requirements. The locking screw excites torque, the design specification requirement is met, and the installation time is shortened by 50% compared with the conventional flange connection; the tightening torque is reduced by 50-70% compared to the bolt torque of conventional flange connections.
In summary, the embodiments of the present invention are merely exemplary and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made according to the content of the claims of the present invention should fall within the technical scope of the present invention.
Claims (10)
1. The utility model provides a quick connecting device for integral well head, its characterized in that, includes first connecting body (1), second connecting body (2) and the portion of compressing tightly (3) of connecting first connecting body (1) and second connecting body (2), compress tightly portion (3) and be used for promoting second connecting body (2) for first connecting body (1) direction removes, and will second connecting body (2) with first connecting body (1) compresses tightly fixedly, be provided with the promotion on first connecting body (1) compress tightly locking portion (5) that portion (3) removed, the moving direction of portion of compressing tightly (3) with the moving direction mutually perpendicular of second connecting body (2).
2. A quick connection device for an integral wellhead according to claim 1 characterized in that the connection end of the first connection body (1) is provided with a connection groove and the connection end of the second connection body (2) is inserted inside the connection groove of the first connection body (1).
3. A quick connection device for an integral wellhead according to claim 1 characterized in that the inner side of the connection end of the second connection body (2) near the connection groove of the first connection body (1) is provided with a groove (21), the groove (21) is used for accommodating the hold-down part (3), and the side of the groove (21) contacting the hold-down part (3) is provided with a first inclined surface (22).
4. A quick connection device for an integral wellhead according to claim 1 characterized in that the connection end of the first connection body (1) is provided with a hold-down groove (11), the hold-down groove (11) is used for installing the hold-down part (3), the hold-down groove (11) is communicated with the groove (21) of the connection end of the first connection body (1), the hold-down part (3) in the hold-down groove (11) can move along the hold-down groove (11) and realize the hold-down of the second connection body (2).
5. A quick connect device for a monolithic wellhead according to claim 1 characterized in that the hold-down portions (3) are at least two and two adjacent hold-down portions (3) are spaced from each other.
6. A quick-connect device for integral wellhead according to claim 1 characterized in that the side of the compressing part (3) close to the groove (21) is provided with a second inclined surface (31), the second inclined surface (31) is matched with the first inclined surface (22) of the groove (21), the side of the compressing part (3) far from the groove (21) is connected with the locking part (5), and a clamping groove (32) is provided at the joint, and an opening (33) is provided on the clamping groove (32).
7. A quick-connect apparatus for an integral wellhead according to claim 1 characterized in that the locking portion (5) comprises a locking portion body (51) and a latch (52), the latch (52) is provided integrally with the locking portion body (51), the latch (52) is installed inside a slot (32) of the hold-down portion (3), the locking portion (5) body is installed through an opening (33) of the slot (32).
8. A quick connection device for a monolithic wellhead according to claim 1 characterized in that the locking portion (5) is mounted in a locking seat (4) of the first connection body (1), the locking seat (4) being fixedly connected with the first connection body (1), the locking seat (4) being in threaded connection with the locking portion body (51).
9. A quick connection device for a monolithic wellhead according to claim 1 characterized in that a sealing gasket (6) is also provided between the first connection body (1) and the second connection body (2).
10. A quick-connect device for a monolithic wellhead according to claim 1 characterized in that the hold-down portions (3) are uniformly distributed along the cross section of the first connection body (1), the hold-down portions (3) can be of arc or rectangular configuration and the hold-down slots (11) can be of arc or rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288576.1A CN110847827A (en) | 2019-12-12 | 2019-12-12 | Quick connecting device for integral well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288576.1A CN110847827A (en) | 2019-12-12 | 2019-12-12 | Quick connecting device for integral well head |
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| Publication Number | Publication Date |
|---|---|
| CN110847827A true CN110847827A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911288576.1A Pending CN110847827A (en) | 2019-12-12 | 2019-12-12 | Quick connecting device for integral well head |
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| Country | Link |
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| CN (1) | CN110847827A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653458A (en) * | 2021-09-13 | 2021-11-16 | 上海神开石油设备有限公司 | Quick connection and disassembly structure for wellhead device |
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| US4408783A (en) * | 1980-12-22 | 1983-10-11 | Smith International Inc. | Holddown apparatus |
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| CN204960925U (en) * | 2015-09-23 | 2016-01-13 | 中国石油天然气集团公司 | But coiled tubing is with rotary casing collar locator |
| CN107313726A (en) * | 2016-04-27 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of sleeve pipe cementing head Quick hoop and its application method |
| CN207194860U (en) * | 2017-07-07 | 2018-04-06 | 美钻石油钻采系统工程（上海）有限公司 | Well head quick-locking device |
| CN107905739A (en) * | 2017-11-03 | 2018-04-13 | 苏州优力克流体控制科技有限公司 | A kind of new oil tube head conversion connector |
| CN207598217U (en) * | 2017-11-09 | 2018-07-10 | 美钻石油钻采系统(上海)有限公司 | For the quick-locking device of subsea control modules |
| CN109098682A (en) * | 2018-11-12 | 2018-12-28 | 美钻深海能源科技研发（上海）有限公司 | A kind of well head jackscrew voussoir stairs device |
| CN109268602A (en) * | 2018-04-30 | 2019-01-25 | 中山市道格装饰设计工程有限公司 | A kind of sealing device of quick locking |
| CN211573418U (en) * | 2019-12-12 | 2020-09-25 | 威飞海洋装备制造有限公司 | Quick connecting device for integral well head |
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2019
- 2019-12-12 CN CN201911288576.1A patent/CN110847827A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6608864A (en) * | 1965-07-02 | 1967-01-03 | ||
| US4408783A (en) * | 1980-12-22 | 1983-10-11 | Smith International Inc. | Holddown apparatus |
| US5441310A (en) * | 1994-03-04 | 1995-08-15 | Fmc Corporation | Cement head quick connector |
| JP2000234629A (en) * | 1999-02-15 | 2000-08-29 | Koyo Seiko Co Ltd | Clamp joint for shaft and universal joint using same |
| CN102003157A (en) * | 2010-12-10 | 2011-04-06 | 中国石油大学(北京) | Subsea wellhead connector |
| CN204960925U (en) * | 2015-09-23 | 2016-01-13 | 中国石油天然气集团公司 | But coiled tubing is with rotary casing collar locator |
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| CN107905739A (en) * | 2017-11-03 | 2018-04-13 | 苏州优力克流体控制科技有限公司 | A kind of new oil tube head conversion connector |
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| CN109098682A (en) * | 2018-11-12 | 2018-12-28 | 美钻深海能源科技研发（上海）有限公司 | A kind of well head jackscrew voussoir stairs device |
| CN211573418U (en) * | 2019-12-12 | 2020-09-25 | 威飞海洋装备制造有限公司 | Quick connecting device for integral well head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653458A (en) * | 2021-09-13 | 2021-11-16 | 上海神开石油设备有限公司 | Quick connection and disassembly structure for wellhead device |
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