CN203097850U - Emergency release device of deep water drilling riser - Google Patents
Emergency release device of deep water drilling riser Download PDFInfo
- Publication number
- CN203097850U CN203097850U CN 201220726852 CN201220726852U CN203097850U CN 203097850 U CN203097850 U CN 203097850U CN 201220726852 CN201220726852 CN 201220726852 CN 201220726852 U CN201220726852 U CN 201220726852U CN 203097850 U CN203097850 U CN 203097850U
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- underwater
- drilling
- well head
- boring island
- offshore boring
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Abstract
The utility model relates to an emergency release device of a deep water drilling riser. The device is characterized by comprising a drilling platform arranged on a sea level, wherein the drilling platform is provided with a derrick, the bottom of the drilling platform is provided with a platform buoyancy tank, the drilling riser is placed downwards from the drilling platform, the bottom end of the drilling riser is provided with a lower portion elastic joint which is connected with an underwater blowout preventer through an underwater connector, the underwater blowout preventer is arranged on an underwater wellhead guide pipe which is inserted into the sea bottom through an underwater wellhead, the underwater wellhead guide pipe is provided with a stress sensor, an angle sensor is arranged on a surrounding position of the lower portion elastic joint on the drilling riser, the stress sensor and the angle sensor are in electric connection with a control chamber on the drilling platform, and the control chamber is in electric connection with the underwater connector. The device is simple in structure, convenient to operate, capable of guaranteeing the safety of the riser, meanwhile, capable of protecting the wellhead against damage, and capable of being widely used in the emergency release process of the deep water drilling riser.
Description
Technical field
The utility model relates to offshore oil pneumatic drill completion and oil-gas mining field, particularly is applied to the emergent kickoff mechanism that the deepwater drilling marine riser breaks away from underwater well head about a kind of under contingency condition.
Background technology
The effect of insulating sea water, circulating fluid is being born in the contact that offshore drilling is set up deepwater drilling platform and underwater well head by drilling water-separation pipe, drilling water-separation pipe.For offshore drilling, horizontal displacement can take place along with ocean current and wave in drill ship, and when displacement surpassed certain value, because the position of underwater well head is static relatively, therefore connecting superincumbent marine riser will bend, and causes well head crooked thereupon.For deepwater drilling, at present the most frequently used offshore boring island is all realized control automatically by dynamic positioning, when running into similar typhoon or strong Action of Wave Current, big position skew can take place in offshore boring island at short notice, cause the bending of marine riser bottom corner and well head, if can not in time free, well head is destroyed or the connection damage of marine riser bottom, cause drillng operation to carry out.Present freeing for marine riser, common Initiated Mechanism is to control by the corner of monitoring marine riser bottom, when corner surpasses certain numerical value, start and free program, but this method has only been considered the safety of marine riser, marine riser-well head system is not considered as a whole that when possible marine riser bottom comers was also smaller, the flexural stress of well head had caused the destruction of well head.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides and a kind ofly can guarantee marine riser safety, the emergent kickoff mechanism of the deepwater drilling marine riser that can protect well head not to be destroyed again.
For achieving the above object, the utility model is taked following technical scheme: a kind of deepwater drilling marine riser kickoff mechanism of meeting an urgent need, it is characterized in that: it comprises the offshore boring island that is arranged on the sea level, described offshore boring island is provided with derrick, the bottom of described offshore boring island is provided with the platform buoyancy tank, transfer drilling water-separation pipe on the described offshore boring island, the bottom of described drilling water-separation pipe is provided with the bottom flexible coupling, the flexible coupling of described bottom connects preventer under water by underwater connector, and described preventer under water is arranged on the underwater well head conduit; Described underwater well head conduit inserts the seabed by underwater well head, on the described underwater well head conduit strain gauge is set, near the position of the above bottom flexible coupling of described drilling water-separation pipe is provided with angular transducer, described strain gauge and angular transducer are electrically connected the control room on the described offshore boring island, and described control room is electrically connected described underwater connector.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model conduction pipe and the flexible coupling of marine riser bottom sensor installation simultaneously under water, marine riser-well head system is considered as a whole, monitor the flexural stress and the marine riser bottom flexible coupling corner of underwater well head simultaneously, any one surpasses threshold, will start marine riser automatically and free operation.The utility model is simple in structure, and is easy to operate, can guarantee the safety of marine riser, can protect well head not to be destroyed again, can be widely used in that the deepwater drilling marine riser is emergent frees in the process.
Description of drawings
Fig. 1 is the utility model drilling water-separation pipe-underwater well head connection diagram
Fig. 2 is that the utility model drilling water-separation pipe-underwater well head is freed schematic diagram
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As Fig. 1, shown in Figure 2, the utility model comprises the offshore boring island 2 that is arranged on the sea level 1, offshore boring island 2 is provided with derrick 3, the bottom of offshore boring island 2 is provided with platform buoyancy tank 4, transfer drilling water-separation pipe 5 on the offshore boring island 2, the bottom of drilling water-separation pipe 5 is provided with bottom flexible coupling 6, bottom flexible coupling 6 connects preventer 8 under water by underwater connector 7, preventer 8 is arranged on the underwater well head conduit 9 under water, underwater well head conduit 9 inserts seabed 10 by underwater well head, on the conduction pipe 9 strain gauge 11 is set under water, angular transducer 12 is set near the position of the bottom of drilling water-separation pipe 5 flexible coupling 6, strain gauge 11 and angular transducer 12 passes to the data that collect in the control room (not shown) on the offshore boring island 2 by wired or wireless mode in real time, preset underwater well head stress in the control room, the threshold of marine riser bottom comers angle, the value that real-time monitor stress sensor 11 in control room and angular transducer 12 reflect, and respectively with its in the threshold that presets compare, when any one parameter surpasses threshold, the control room starts frees program, free the program power resources in the ground hydraulic system, instruction is sent by the control room, control underwater connector 7 disconnects, and realizes drilling water-separation pipe 5 and the disengaging of preventer 10 under water.
Workflow of the present utility model is: when underwater well head conduit 9 is installed, and Installation Stress sensor 11 on the conduction pipe 9 under water; Before drilling water-separation pipe 5 and preventer 8 entry under water, the position is provided with angular transducer 12 near the bottom flexible coupling 6 on the drilling water-separation pipe 5.When normally carrying out drillng operation, drilling water-separation pipe 5 and offshore boring island 2 and preventer 8 and underwater well head conduit 9 keep connection status, the drilling water-separation pipe 5 interior circulations that can realize creeping into operation and drilling fluid under water.When because during the influencing of burst factor such as hurricane, strong ocean current etc., the moment displacement takes place in offshore boring island 2, when causing drilling water-separation pipe 5-underwater well head conduit 9 to bend, control room on the offshore boring island 2 is by the size of monitoring underwater well head stress, marine riser bottom comers angle and threshold, automatically start and free program, control underwater connector 7 disconnects, and realizes drilling water-separation pipe 5 and the disengaging of preventer 8 under water.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (1)
1. the emergent kickoff mechanism of a deepwater drilling marine riser, it is characterized in that: it comprises the offshore boring island that is arranged on the sea level, described offshore boring island is provided with derrick, the bottom of described offshore boring island is provided with the platform buoyancy tank, transfer drilling water-separation pipe on the described offshore boring island, the bottom of described drilling water-separation pipe is provided with the bottom flexible coupling, and the flexible coupling of described bottom connects preventer under water by underwater connector, and described preventer under water is arranged on the underwater well head conduit; Described underwater well head conduit inserts the seabed by underwater well head, on the described underwater well head conduit strain gauge is set, near the position of the above bottom flexible coupling of described drilling water-separation pipe is provided with angular transducer, described strain gauge and angular transducer are electrically connected the control room on the described offshore boring island, and described control room is electrically connected described underwater connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726852 CN203097850U (en) | 2012-12-25 | 2012-12-25 | Emergency release device of deep water drilling riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726852 CN203097850U (en) | 2012-12-25 | 2012-12-25 | Emergency release device of deep water drilling riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097850U true CN203097850U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220726852 Expired - Lifetime CN203097850U (en) | 2012-12-25 | 2012-12-25 | Emergency release device of deep water drilling riser |
Country Status (1)
| Country | Link |
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| CN (1) | CN203097850U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696981A (en) * | 2016-04-14 | 2016-06-22 | 深圳市雷斯特海洋工程有限公司 | Device, system and method for blocking removal of flammable ice |
| CN105781474A (en) * | 2016-05-23 | 2016-07-20 | 西南石油大学 | Device for preventing marine riser from longitudinally vibrating under release mode and application method |
| CN105863521A (en) * | 2016-03-28 | 2016-08-17 | 中国石油大学(华东) | Drilling marine riser safety joint |
| CN107167390A (en) * | 2017-05-22 | 2017-09-15 | 中国海洋石油总公司 | A kind of deepwater subsea well mouthful fatigue experimental device |
| CN107255025A (en) * | 2017-07-17 | 2017-10-17 | 中国海洋石油总公司 | A kind of emergent determination method for freeing startup opportunity of Deep Water Drilling Riser |
| CN108086924A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | A kind of method that deepwater drilling platform suspension marine riser moves well location |
| CN111188597A (en) * | 2019-12-31 | 2020-05-22 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN111561299A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Liquid drainage and gas production operation system and operation method suitable for engineering ship |
| CN111561289A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
| CN111577244A (en) * | 2020-05-12 | 2020-08-25 | 中国海洋石油集团有限公司 | Real-time monitoring method for drilling riser top dip angle and top joint corner |
| CN111691834A (en) * | 2020-06-12 | 2020-09-22 | 广州海洋地质调查局 | Emergency hanging tubular column system and method for deepwater marine riser |
| CN112145095A (en) * | 2020-09-25 | 2020-12-29 | 中海石油(中国)有限公司 | Emergency release device and method with tie-back function |
-
2012
- 2012-12-25 CN CN 201220726852 patent/CN203097850U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863521A (en) * | 2016-03-28 | 2016-08-17 | 中国石油大学(华东) | Drilling marine riser safety joint |
| CN105696981A (en) * | 2016-04-14 | 2016-06-22 | 深圳市雷斯特海洋工程有限公司 | Device, system and method for blocking removal of flammable ice |
| CN105781474A (en) * | 2016-05-23 | 2016-07-20 | 西南石油大学 | Device for preventing marine riser from longitudinally vibrating under release mode and application method |
| CN105781474B (en) * | 2016-05-23 | 2018-07-13 | 西南石油大学 | Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type |
| CN107167390A (en) * | 2017-05-22 | 2017-09-15 | 中国海洋石油总公司 | A kind of deepwater subsea well mouthful fatigue experimental device |
| CN107167390B (en) * | 2017-05-22 | 2024-02-20 | 中国海洋石油集团有限公司 | Deep water underwater wellhead fatigue test device |
| CN107255025A (en) * | 2017-07-17 | 2017-10-17 | 中国海洋石油总公司 | A kind of emergent determination method for freeing startup opportunity of Deep Water Drilling Riser |
| CN107255025B (en) * | 2017-07-17 | 2020-01-31 | 中国海洋石油集团有限公司 | Determination method for emergency release starting time of deepwater drilling riser |
| CN108086924A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | A kind of method that deepwater drilling platform suspension marine riser moves well location |
| CN108086924B (en) * | 2017-12-11 | 2019-09-13 | 中国海洋石油集团有限公司 | A kind of method that deepwater drilling platform suspension marine riser moves well location |
| CN111188597B (en) * | 2019-12-31 | 2022-03-15 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN111188597A (en) * | 2019-12-31 | 2020-05-22 | 中国海洋石油集团有限公司 | Safety monitoring system and method for marine riser in soft suspension state |
| CN111577244A (en) * | 2020-05-12 | 2020-08-25 | 中国海洋石油集团有限公司 | Real-time monitoring method for drilling riser top dip angle and top joint corner |
| CN111577244B (en) * | 2020-05-12 | 2024-01-12 | 中国海洋石油集团有限公司 | Real-time monitoring method for inclination angle of top of drilling riser and rotation angle of top joint |
| CN111561289A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
| CN111561299A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Liquid drainage and gas production operation system and operation method suitable for engineering ship |
| CN111561289B (en) * | 2020-05-26 | 2022-04-08 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
| CN111691834A (en) * | 2020-06-12 | 2020-09-22 | 广州海洋地质调查局 | Emergency hanging tubular column system and method for deepwater marine riser |
| CN112145095A (en) * | 2020-09-25 | 2020-12-29 | 中海石油(中国)有限公司 | Emergency release device and method with tie-back function |
| CN112145095B (en) * | 2020-09-25 | 2022-05-17 | 中海石油(中国)有限公司 | Emergency release device and method with tie-back function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |