CN111236860A - A kind of interface unit - Google Patents
A kind of interface unit Download PDFInfo
- Publication number
- CN111236860A CN111236860A CN202010056749.3A CN202010056749A CN111236860A CN 111236860 A CN111236860 A CN 111236860A CN 202010056749 A CN202010056749 A CN 202010056749A CN 111236860 A CN111236860 A CN 111236860A
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- push block
- connector
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- linear motion
- plate
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- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000013535 sea water Substances 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
- E21B17/08—Casing joints
- E21B17/085—Riser connections
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a connector which comprises a direct-acting driving device, a direct-acting guide device, a push block executing device and a lower hub seat, wherein the direct-acting driving device comprises a first driving element and a driving plate, and the first driving element drives the driving plate to reciprocate up and down along the direct-acting guide device; the push block executing device comprises a second driving element and a push block, the second driving element drives the push block to reciprocate left and right, and the push block executing device is arranged on a driving plate of the direct-acting driving device; and the lower hub seat is provided with a push block connecting piece which is suitable for being connected with the push block. The invention can not only realize the quick connection and disconnection of the deepwater drilling riser, but also prevent the connector from being accidentally disconnected.
Description
Technical Field
The invention relates to the technical field of oil drilling, in particular to a connector for separating a marine riser.
Background
In view of the gradual depletion of onshore oil resources, the oil drilling operation in our country gradually shifts to the ocean, and with the development of the ocean drilling technology, the oil drilling gradually steps from the conventional water depth to deep water and ultra-deep sea areas. The main battlefield of China's ocean drilling is in the south China sea area, the depth range of drilling operation water is large, the environmental conditions are severe, and frequently-occurring typhoons/hurricanes seriously affect the drilling operation.
In typhoon/hurricane conditions, it is conventionally necessary to retrieve a single riser from each riser to the rig and then to evacuate the rig from the shelter, which is time consuming and unsafe to operate. Often, the marine riser cannot be timely recovered due to the fact that the measures for preventing and avoiding the platform are not in place, so that the marine riser is damaged under the typhoon condition, marine riser accidents occur, and drilling shutdown is caused. Under the background, the anti-typhoon drilling riser system concept is provided, so that the problem that the riser cannot be timely recovered under the severe weather condition is solved, the anti-typhoon performance of the riser system is enhanced, and the safety and the reliability of the drilling system are improved. Under the system, before the typhoon comes, the anti-typhoon drilling marine riser can be quickly separated from the offshore surface, only a small part of the marine riser is recovered, and the rest most of the marine riser keeps free standing in seawater and is supported by buoyancy provided by the buoyancy tank. And after the typhoon, the drilling platform drives back to the original drilling position, the recovered upper marine riser is connected with the lower marine riser again, and the drilling operation is recovered. The system can greatly shorten the time for recovering the marine riser before the typhoon comes and reconnecting the marine riser after the typhoon passes, greatly reduce the risk of recovering and releasing the marine riser, and effectively improve the safety and reliability of the whole drilling system.
The underwater connector is a core component of the bench drilling prevention water insulation pipe system, and the underwater connector mainly has the functions of connecting an upper water insulation pipe and a lower water insulation pipe. Before severe weather such as typhoon/hurricane comes, the platform control room sends out a disengaging instruction to control a hydraulic driving system on the connector to complete disengaging operation; after the typhoon/hurricane passes, the platform is driven to the position above the wellhead to lower the upper marine riser, and the upper marine riser and the lower marine riser are connected by means of the action of an ROV (underwater robot) and the action of a hydraulic system. In the process, the mounting and dismounting complexity of the connector, the complexity of the structural design and the stability of the realization of the connection and disconnection functions have important influence on the application of the connector to the actual working condition. After the underwater connector realizes the connection function, the reliability of the self-locking function is also particularly important, the locking is a key technology for realizing the connection and the unlocking of the connector, and particularly, the secondary locking technology which is inconvenient to operate is a technical challenge for firmly connecting the connector.
At present, a secondary locking device of an underwater connector mostly adopts ROV (remote operated vehicle) auxiliary operation to drive a secondary locking bolt to perform locking and unlocking operations. However, the ROV operation is easily affected by the external environment, so that it is difficult to efficiently and stably complete the precise secondary locking operation, and the ROV operation is expensive and time-consuming, and cannot achieve automatic locking and unlocking, so that the connector cannot be quickly separated from the escape platform.
Therefore, it is necessary to provide a new connector for the functional failure of the connector caused by the problems of time and labor consuming to assemble and disassemble, high cost, low working efficiency, easy deviation of the claw type connector, small connection deflection angle and the like of the existing bolt locking connector.
Disclosure of Invention
In view of the above, the present invention is directed to provide an underwater connector device with simple structure, low cost, reasonable stress, simple operation, accurate and reliable connection, high efficiency, and good practicability, so as to not only achieve the rapid connection and disconnection of the deepwater drilling riser, but also prevent the connector from being accidentally disconnected.
The invention provides a connector which can be used for connecting an upper part and a lower part of a riser, and mainly comprises a linear motion driving device, a linear motion guiding device, a push block executing device and a lower hub seat, wherein,
the linear motion driving device comprises a first driving element and a driving plate, and the first driving element drives the driving plate to reciprocate up and down along the linear motion guide device;
the push block executing device comprises a second driving element and a push block, the second driving element drives the push block to reciprocate left and right, and the push block executing device is arranged on a driving plate of the direct-acting driving device;
and the lower hub seat is provided with a push block connecting piece which is suitable for being connected with the push block.
When the marine riser is used, the upper hub seat and the upper marine riser short section can be connected through the adapter flange, and the lower hub seat and the lower marine riser short section are connected through the adapter flange.
According to one embodiment of the invention, the push block executing device is of a bilateral symmetry structure, the left side and the right side respectively comprise the second driving element and the push block, and the push blocks on the two sides are oppositely arranged; the lower hub seat is provided with the left-right symmetrical push block connecting pieces, and the push block connecting pieces on each side are respectively in adaptive connection with the push blocks on the left side and the right side of the push block executing device.
According to one embodiment of the invention, the push block connecting piece is of a clamping groove structure matched with the appearance of the push block.
According to one embodiment of the present invention, the driving plate is provided with a downward bent portion, and the bent portion is provided with a guide groove for guiding the push block.
According to an embodiment of the present invention, the driving plate is provided with the bent portion which is bilaterally symmetrical.
According to an embodiment of the invention, the connector further comprises an upper hub provided with an upper connecting portion and a bottom portion, the bottom portion being connected with the linear motion guide.
According to an embodiment of the present invention, the linear motion driving device further comprises a supporting plate, a lower bottom of the supporting plate is connected to the fixed end of the first driving element, and an upper portion of the supporting plate is connected to the upper hub.
According to one embodiment of the invention, the drive plate is connected below the movable portion of the first drive element.
According to an embodiment of the present invention, the linear motion guide device includes a guide tube and an abutment, the guide tube is disposed above the abutment, an upper end of the guide tube is connected to the fixed portion of the linear motion guide device, and a lower end of the abutment is connected to the lower hub.
According to one embodiment of the invention, the first and second drive elements are each a hydraulic cylinder arrangement, and the first and second drive elements are each provided with a single or multiple hydraulic cylinders.
The invention realizes driving by arranging the first and second driving elements, does not need professional equipment for auxiliary disconnection and connection, reduces cost, and has simple and efficient operation.
The push block and the guide groove are used for bearing force after connection is completed, so that the working state stability is higher, the safety and reliability degree of the whole connector is improved, and the connector can be prevented from being accidentally disengaged.
The invention has simple mechanical structure, reasonable stress during working, good practicability, lower processing difficulty and convenient processing and installation.
Drawings
FIG. 1 is a schematic view of a connector according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a linear actuator according to an embodiment of the present invention;
FIG. 3 is a schematic view of another embodiment of a linear motion guide device according to the present invention;
FIG. 4 is a schematic structural diagram of a push block actuator according to an embodiment of the present invention;
FIG. 5 is a schematic view of a lower hub of another embodiment of the present invention;
reference numerals:
1, an upper hub seat;
2, a direct-acting driving device, a 201 supporting plate, a 202 hydraulic cylinder, a 203 driving plate and a 2031 guide groove;
3, a direct-acting guide device, a 301 guide pipe and a 302 butt joint piece;
4, a pushing block executing device, a 401 hydraulic cylinder and a 402 pushing block;
5 lower hub, 501 abutment, 502 pusher connector.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
As shown in fig. 1, the present invention provides a connector for connecting an upper portion and a lower portion of a riser, the connector mainly includes an upper hub 1, a linear motion driving device 2, a linear motion guiding device 3, a push block executing device 4, and a lower hub 5, wherein the upper hub 1 is flange-connectable to an upper riser through a conversion joint, and a lower end of the lower hub 5 is flange-connectable to a lower riser through a conversion joint. Of course, the upper hub 1 may be integrated with the linear actuator 2 as an upper end of the linear actuator 2 connected to the upper riser.
As shown in fig. 2, the linear motion driving device 2 may further include a first driving element and a driving plate 203, wherein the first driving element drives the driving plate to reciprocate up and down along the linear motion guide device 3. The first drive element may be hydraulically driven, and as shown in FIG. 1, the first drive element may be a hydraulic cylinder 202. According to an embodiment of the present invention, the linear motion driving device further comprises a supporting plate 201, a lower bottom of the supporting plate 201 is connected to the fixed end of the first driving element, and an upper portion of the supporting plate 201 can be connected to an upper hub.
The direct-acting guide device 3 can be used for guiding the driving plate in the vertical direction, and the structure can be unlimited.
According to an embodiment of the present invention, as shown in fig. 3, the linear motion guide device 3 includes a guide tube 301 and an abutment 302, the guide tube 301 is disposed above the abutment 302, an upper end of the guide tube is connected to a fixed portion of the linear motion guide device 2, and a lower portion of the abutment 302 is connected to the lower hub.
The drive plate 203 is movable up and down the guide tube 301. The abutment 302, in addition to being connected to the underlying element, may also stop the drive plate 203 from continuing downward movement.
Of course, a connection plate may be provided above the guide tube 301 to connect with the fixed portion of the linear motion guide 3.
A hole may be provided on the drive plate 203 such that the guide tube 301 passes through, and the guide tube 301 is detachably connected to the docking member 302 so that the docking member 302 is mounted below the drive plate 203.
As shown in fig. 4, the push block executing device 4 mainly includes a second driving element and a push block 402, and the second driving element drives the push block 402 to reciprocate left and right. The push block executing device 4 is arranged on a driving plate 203 of the direct-acting driving device.
The second drive element may be hydraulically driven, and as shown in fig. 4 the first drive element may be a hydraulic cylinder 401.
As shown in fig. 5, a push block connector 502 is provided on the lower hub 5, and the push block connector 502 is adapted to connect with the push block 402. When the push block 402 moves to the push block connector 502, the push block connector 502 is connected with the push block 402 to press the butt connectors 302 and 501, the upper hub 1 can be connected with the upper riser by a flange through the adapter, and the lower end of the lower hub 5 can be connected with the lower riser by a flange through the adapter, so that the risers can be connected.
As shown in the above figures, according to an embodiment of the present invention, for structural stability and reliability, the push block executing device has a left-right symmetrical structure, the left side and the right side each include the second driving element and a push block, and the push blocks on the two sides are arranged oppositely; the lower hub seat is provided with the left-right symmetrical push block connecting pieces, and the push block connecting pieces on each side are respectively in adaptive connection with the push blocks on the left side and the right side of the push block executing device.
According to an embodiment of the present invention, the pusher connector 502 is a slot structure adapted to the shape of the pusher 402.
As shown in fig. 2, according to an embodiment of the present invention, the driving plate 203 is provided with a downward bent portion, and the bent portion is provided with a guide groove 2031 for guiding the pushing block 402.
According to an embodiment of the present invention, the driving plate 203 is provided with the bending portion in bilateral symmetry.
According to an embodiment of the invention, the connector further comprises an upper hub 1, the upper hub 1 being provided with an upper connection portion and a bottom portion, the bottom portion being connected to the linear guide 2. The upper end of the upper hub seat is provided with a flange which is connected with a flange bolt at the lower end of the riser adapter, and the upper end of the riser adapter is directly connected with a joint special for a common riser (CLIP connector).
As shown in fig. 2, according to an embodiment of the present invention, the linear driving device 2 further comprises a supporting plate 201, a lower bottom of the supporting plate 201 is connected to the fixed end of the first driving element, and an upper portion of the supporting plate 201 is connected to the upper hub 1.
According to one embodiment of the invention, said driving plate 203 is connected below the movable part of said first driving element.
According to an embodiment of the present invention, the linear motion guide device comprises a guide tube 301 and an abutment 302, the guide tube 301 is disposed above the abutment 302, the upper end of the guide tube 301 is connected to the fixed portion of the linear motion guide device, and the lower portion of the abutment 302 is connected to the lower hub 5.
According to one embodiment of the invention, the first and second drive elements are each a hydraulic cylinder arrangement, and the first and second drive elements are each provided with a single or multiple hydraulic cylinders.
According to one embodiment of the invention, the first drive element is provided with four parallel hydraulic cylinders.
According to one embodiment of the invention, the second drive element is provided with two parallel hydraulic cylinders.
According to an embodiment of the present invention, when the hydraulic cylinder 202 as the first driving element is operated, the rod of the hydraulic cylinder 202 is extended to push the driving plate 203 to move downwards along the guide tube 301, the driving plate 203 drives the push block executing device 4 to move downwards, after the driving plate 203 reaches the designated position, the rods of the four hydraulic cylinders 401 are extended to push the push blocks 402 to move into the push block connecting pieces 502, and after the push blocks 402 reach the designated position, the four hydraulic cylinders 401 stop operating and are locked. The unlocking process is reversed.
According to the working process, the marine riser can be unlocked to avoid the platform when the platform is prevented, and the connection is realized again after the platform is returned.
The push block type underwater connector device has the advantages of simple structure, lower cost, reasonable stress, simple and convenient operation, accurate and reliable connection, high efficiency and good practicability, can realize the quick connection and disconnection of the deepwater drilling riser, and can prevent the connector from being disconnected accidentally.
Examples
As shown in fig. 1 to 5, the present embodiment is a push block type underwater quick connection device, wherein: the device consists of an upper hub seat 1, a direct-acting driving device 2, a direct-acting guide device 3, two push block executing devices 4 and a lower hub seat 5; the linear motion driving device 2 and the upper hub 1 are connected with the upper part of a supporting plate 201 in the linear motion driving device 2 through the bottom of the upper hub 1; the linear motion guide device 3 and the linear motion driving device 2 are connected with the lower part of a supporting plate 201 in the linear motion driving device 2 through the upper part of a guide pipe 301 in the linear motion guide device 3; the two push block executing devices 4 are respectively connected with the direct-acting driving device 2 through the bottom surface of the upper part of a hydraulic cylinder 401 in the push block executing device 4 and the vertical plane of a driving plate 203 in the direct-acting driving device 2, and a push block 402 in the push block executing device 4 penetrates through a rectangular slotted hole in the driving plate 203 in the direct-acting driving device 2; the lower hub 5 and the linear motion guide 3 are connected to the lower portion of the abutment 302 of the linear motion guide 3 through the upper portion of the hub abutment 501 of the lower hub 5.
As shown in fig. 2, the linear driving device 2 is composed of a supporting plate 201, four hydraulic cylinders 202 and a driving plate 203; the upper parts of the four hydraulic cylinders 202 are respectively fixed to the lower part of the support plate 201, and the lower parts (push rods) of the four hydraulic cylinders 202 are respectively fixed to the upper part of the drive plate 203.
The linear driving device described in this embodiment can realize the up-and-down movement of the driving plate 203, and further drive the up-and-down movement of the push block executing device 4.
As shown in fig. 3, the linear motion guide device 3 is composed of a guide tube 301 and an abutting piece 302; the lower part of the guide tube 301 is connected with the upper part of the butt piece 302 through a screw thread.
The linear motion guide device 2 of this embodiment can realize the vertical motion of the driving plate 203, and ensure the motion of the push block executing device 4 in the vertical direction.
As shown in fig. 4, the push block executing device 4 is composed of two hydraulic cylinders 401 and two push blocks 402; the two pushing blocks 402 are respectively connected with the pushing rods of the two hydraulic cylinders 401.
This embodiment ejector pad final controlling element can realize that the quick and accurate of ejector pad formula quick connector device under water pushes away, draws the action, and the ejector pad should have the small-angle wedge face, and two wedge ejector pads make the butt joint face extrusion realize the butt joint piece and connect.
Thereby achieving connection and disconnection between the risers.
As shown in fig. 5, the lower hub 5 is composed of a hub abutment 501 and two push block connectors 502; the top of the push block connector 502 is connected to the hub connector 501, and the 2 push block connectors 502 are uniformly distributed on the lower portion of the bottom surface of the hub connector 501.
The working principle of the mechanism of the embodiment is as follows:
firstly, the four hydraulic cylinders 202 work, the four hydraulic cylinders 202 extend to push the driving plate 203 to move downwards along the guide pipe 301, the driving plate 203 drives the push block executing device 4 to move downwards, after the driving plate 203 reaches a designated position, the four hydraulic cylinders 401 extend to push the push block 402 to move towards the push block connecting piece 502, and until the push block 402 reaches the designated position, the four hydraulic cylinders 401 stop working and are locked. The unlocking process is reversed.
The lower hub base provides a connection interface for the push block, so that the push block type underwater quick connector device can be effectively prevented from being accidentally disengaged, the connection reliability is improved, and the continuous production is ensured.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiments are merely illustrative of the present invention, and various components and devices of the embodiments may be changed or eliminated as desired, not all components shown in the drawings are necessarily required, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, and all equivalent changes and modifications based on the technical solutions of the present invention should not be excluded from the scope of the present invention.
Claims (10)
1. A connector comprising a linear motion drive means, a linear motion guide means, a push block actuator means and a lower hub, wherein,
the linear motion driving device comprises a first driving element and a driving plate, and the first driving element drives the driving plate to reciprocate up and down along the linear motion guide device;
the push block executing device comprises a second driving element and a push block, the second driving element drives the push block to reciprocate left and right, and the push block executing device is arranged on a driving plate of the direct-acting driving device;
and the lower hub seat is provided with a push block connecting piece which is suitable for being connected with the push block.
2. The connector of claim 1, wherein the push block actuator is a left-right symmetrical structure, the left side and the right side respectively comprise the second driving element and the push block, and the push blocks on the two sides are oppositely arranged; the lower hub seat is provided with the left-right symmetrical push block connecting pieces, and the push block connecting pieces on each side are respectively in adaptive connection with the push blocks on the left side and the right side of the push block executing device.
3. The connector according to claim 1 or 2, wherein the push block connecting piece is a slot structure matched with the shape of the push block.
4. The connector according to claim 1 or 2, wherein the driving plate is provided with a downward bent portion, and the bent portion is provided with a guide groove for guiding the push block.
5. The connector according to claim 4, wherein the driving plate is provided with the bent portions in bilateral symmetry.
6. The connector of claim 1, 2 or 5, further comprising an upper hub having an upper connecting portion and a bottom portion, the bottom portion being connected to the linear guide.
7. The connector of claim 6, wherein the linear drive mechanism further comprises a support plate, a lower base of the support plate being connected to the fixed end of the first drive element and an upper portion of the support plate being connected to the upper hub.
8. The connector of claim 7, wherein said drive plate is connected below a movable portion of said first drive element.
9. The connector of claim 1 or 2 or 5 or 7 or 8, wherein the linear motion guide comprises a guide tube and an abutment, the guide tube is disposed above the abutment, the upper end of the guide tube is connected to the fixed portion of the linear motion guide, and the lower end of the abutment is connected to the lower hub.
10. A connector as claimed in claim 1 or 2 or 5 or 7 or 8, wherein the first and second drive elements are each of hydraulic cylinder construction, the first and second drive elements each being provided with a single or multiple hydraulic cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056749.3A CN111236860A (en) | 2020-01-17 | 2020-01-17 | A kind of interface unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056749.3A CN111236860A (en) | 2020-01-17 | 2020-01-17 | A kind of interface unit |
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| CN111236860A true CN111236860A (en) | 2020-06-05 |
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|---|---|---|---|
| CN202010056749.3A Pending CN111236860A (en) | 2020-01-17 | 2020-01-17 | A kind of interface unit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488648A (en) * | 2011-03-01 | 2012-09-05 | Vetco Gray Inc | System for connecting a marine riser to a lower marine riser package |
| CN106368644A (en) * | 2016-12-06 | 2017-02-01 | 长江大学 | Underwater connector for offshore drilling |
| CN110206496A (en) * | 2019-07-11 | 2019-09-06 | 中国地质科学院 | A kind of pull-type underwater quick connector arrangement of hook |
| CN110206497A (en) * | 2019-07-16 | 2019-09-06 | 中国地质科学院 | It is a kind of for the automatically lock of underwater connector and the secondary locking mechanism of unlock |
| CN110421332A (en) * | 2019-08-08 | 2019-11-08 | 简辽 | Steel pipe butt-jointing device of the jacking construction with safeguard structure |
-
2020
- 2020-01-17 CN CN202010056749.3A patent/CN111236860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488648A (en) * | 2011-03-01 | 2012-09-05 | Vetco Gray Inc | System for connecting a marine riser to a lower marine riser package |
| CN106368644A (en) * | 2016-12-06 | 2017-02-01 | 长江大学 | Underwater connector for offshore drilling |
| CN110206496A (en) * | 2019-07-11 | 2019-09-06 | 中国地质科学院 | A kind of pull-type underwater quick connector arrangement of hook |
| CN110206497A (en) * | 2019-07-16 | 2019-09-06 | 中国地质科学院 | It is a kind of for the automatically lock of underwater connector and the secondary locking mechanism of unlock |
| CN110421332A (en) * | 2019-08-08 | 2019-11-08 | 简辽 | Steel pipe butt-jointing device of the jacking construction with safeguard structure |
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Application publication date: 20200605 |