CN106639918A - Suspension device and suspension method of water-secluding pipe system for deepwater well drilling - Google Patents
Suspension device and suspension method of water-secluding pipe system for deepwater well drilling Download PDFInfo
- Publication number
- CN106639918A CN106639918A CN201710004606.6A CN201710004606A CN106639918A CN 106639918 A CN106639918 A CN 106639918A CN 201710004606 A CN201710004606 A CN 201710004606A CN 106639918 A CN106639918 A CN 106639918A
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- Prior art keywords
- hydraulic cylinder
- marine riser
- drilling
- acceleration
- oil
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
Abstract
The invention relates to a suspension device and suspension method of a water-secluding pipe system deepwater well drilling, wherein the suspension device comprises a fixed tray, hydraulic cylinders, pulleys and a movable tray. The fixed tray is fixedly connected on a well drilling table face, and a through hole allowing for passing of a water-secluding pipe string is formed in the middle of the fixed tray. The number of the hydraulic cylinders are two or above, and the hydraulic cylinders are installed uniformly on the fixed tray along the edge of the trough hole. The top end of a piston rod of each hydraulic cylinder is connected with the corresponding pulley in a rotating mode. A through hole allowing for passing of the water-secluding pipe string is formed in the middle of the movable tray, the outer side of the movable tray is connected with one end of a steel wire rope, and the other end of the steel wire rope bypasses the pulleys and then connected to the fixed tray.
Description
Technical field
The present invention relates to a kind of suspension arrangement and hanging method, more particularly to a kind of Deep Water Drilling Riser system it is outstanding
Hang device and hanging method.
Background technology
The installation of deepwater drilling and completion process marine riser and urgent suspension are all to hang chuck by marine riser to realize,
The conventional chuck that hangs is hung temporarily by the step surface of mechanical voussoir and marine riser bump joint, chuck overall structure seat
It is placed on drilling rotary table face, therefore is a kind of rigidly connected relation between marine riser string and chuck, drilling platforms, when sea situation ratio
When more severe, especially in typhoon, drill ship can occur under the wave action violent heave movement, due to being rigidly connected
Relation, chuck and marine riser string can occur heave movement with the heave movement of drill ship, when the marine riser string for hanging compared with
When long, the position that riser top is connected with drilling floor surface upper chuck can in real time heave with platform, but in deepwater drilling,
Water proof length of tube is longer, and water proof bottom of the tube is because apart from platform, farther out, the motion of platform in place, causes water proof without transmission in time
Pipe top and the bottom direction of motion produce difference, thus can cause marine riser be compressed axially that (i.e. marine riser somewhere is subject to negative drawing
Power), according to the job specification (API RP16Q) of marine riser, this operating mode is not allowed, and can have a strong impact on suspension marine riser
Safety.It is the installation exercise for not allowing to carry out drilling water-separation pipe under severe sea condition to tackle such case, if made
Typhoon is predicted during industry will be through position of platform, and platform needs to reclaim all of marine riser string, after typhoon dissipates, then again
Under enter marine riser.In this case the workload for removing marine riser string repeatedly can be increased, the progress of whole drillng operation is caused
Very big impact, increased the operating cost of drilling well.If typhoon overtakes, platform is in order to alleviate the possible axle of marine riser string
To compression, the mode of soft suspension marine riser string can be considered as, i.e., be hung using hydraulic tensioner, this mode needs
Dangerous moon pool area carries out respectively associative operation, including connection stretcher, installs marine riser telescopic joint etc., and operation procedure is complicated
It is time-consuming, and operational risk is higher, in emergency circumstances operability is poor.
The content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of simple to operate, in emergency circumstances workable and energy
Enough improve the suspension arrangement and hanging method of the Deep Water Drilling Riser system of riser system suspension security.
For achieving the above object, the present invention is employed the following technical solutions：A kind of suspension dress of Deep Water Drilling Riser system
Put, it is characterised in that：It includes fixed tray, hydraulic cylinder, pulley and movable tray；The fixed tray is fixedly connected on drilling well
On table top, the through hole passed through for marine riser string is offered in the middle part of the fixed tray；The hydraulic cylinder be two or more and
Uniformly it is arranged on the fixed tray along the through hole edge, the piston rod top of the hydraulic cylinder is rotatably connected to pulley；
The through hole passed through for marine riser string, the outside of the movable tray and one end of steel wire rope are offered in the middle part of the movable tray
Connection, the other end of the steel wire rope is bypassed and is connected to after the pulley on the fixed tray.
Two or more guiding slide rail is set on the fixed tray, and the guiding slide rail passes through movable tray.
The top of the guiding slide rail is provided with limited block.
Present invention also offers a kind of hanging method of the suspension arrangement for Deep Water Drilling Riser system, including it is following
Step：
1) it is fixed on movable tray to hang chuck, hang and be provided with chuck suspension voussoir, marine riser string passes through drilling platform
Face is transferred, and the suspension that voussoir completes marine riser string of hanging set in chuck is hung in the joint flange connection on marine riser string top；
2) hydraulic cylinder upper chamber pumps into nitrogen, and lower chambers pump into hydraulic oil, forms pressure reduction and promotes shifting on piston rod, drives and lives
Move in dynamic pallet, suspension chuck and marine riser string and depart from drilling well table top；
3) monitor drilling platform lifting motion acceleration and hydraulic cylinder epicoele room in nitrogen pressure change, set up hydraulic pressure
The computation model of cylinder inner high voltage oil, the pressure of the hydraulic cylinder lower chambers hydraulic oil adjusted by hydraulic pump adds piston rod movement
Speed is with drilling platforms acceleration of motion conversely, marine riser string is with the motion of drilling platforms and the motion of piston rod drive marine riser
Offset, reduce marine riser string and occur being compressed axially.
In the step 2) in, the pressure for pumping into nitrogen is 3000psi.
In the step 3) in, the acceleration of the drilling platform lifting motion is measured or monitored by real-time monitoring platform
Platform heave movement time history data seeking time derivative is obtained.
In the step 3) in, the computation model method for building up of the hydraulic cylinder inner high voltage oil is as follows：
1. when drilling platforms acceleration of motion upwards, then piston rod is moved downward, and by movable tray, hangs chuck and water proof
Pipe string draws as entirety according to Newton's second law：
Mg-nTcos α=Mat (1)
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics accekeration；
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (2)
P in formulaOilFor the pressure of hydraulic cylinder lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1For hydraulic pressure
The cross-sectional area of cylinder inner carrier, S2For the cross-sectional area of piston in hydraulic cylinder bar；
Show that the computation model of hydraulic oil is with reference to (1) (2) formula：
2. when drilling platforms moves downward acceleration, then piston rod is moved upwards, by movable tray, hangs chuck and water proof
Pipe string can be obtained as entirety according to Newton's second law：
NTcos α-Mg=Mat (4)
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics accekeration；
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (5)
P in formulaOilFor the pressure of hydraulic cylinder lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1For hydraulic pressure
The cross-sectional area of cylinder inner carrier, S2For the cross-sectional area of piston in hydraulic cylinder bar；
Show that the computation model of hydraulic oil is with reference to (4) (5) formula：
3. the direction of drilling platforms acceleration is considered, orientation is lower to be upwards negative just, and the computation model of hydraulic oil is：
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics acceleration, POil
For the pressure of hydraulic cylinder lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1For the transversal of piston in hydraulic cylinder
Area, S2For the cross-sectional area of piston in hydraulic cylinder bar.
Due to taking above technical scheme, it has advantages below to the present invention：1st, the present invention connects steel by movable tray
Cord, steel wire rope bypasses the pulley on the piston rod of hydraulic cylinder and is connected pallet, then adjusts high in hydraulic cylinder by hydraulic pump
The pressure of force feed, makes the motion of piston rod and moving conversely, can reduce because the up and down motion of drilling platforms is drawn for drilling platforms
Being compressed axially for marine riser string is played, the suspension security of marine riser string is improved.2nd, the calculating mould by setting up hydraulic oil of the invention
Type, can accurately calculate the pressure of adjustment hydraulic oil, and the motion of piston rod is changed in good time to reduce being compressed axially for marine riser string,
It is simple to operate, in emergency circumstances workable.3rd, the present invention changes according to the suspended load of suspension arrangement, along fixed tray
Through hole edge two or more hydraulic cylinder is uniformly installed, it is possible to increase the load-carrying ability of whole suspension arrangement.4th, it is of the invention to consolidate
Determine to arrange two or more guiding slide rail on pallet, guiding slide rail top is provided with limited block, movable tray passes through guiding slide rail motion,
The horizontal jitter of movable tray can be reduced, the direction of motion difference of marine riser string top and bottom is reduced.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the present invention proposes a kind of suspension arrangement of Deep Water Drilling Riser system, it include fixed tray 1,
Hydraulic cylinder 2, pulley 3 and movable tray 4.Fixed tray 1 is fixedly connected on drilling well table top 12, is opened at the middle part of fixed tray 1
It is provided with the through hole passed through for marine riser string 10.Hydraulic cylinder 2 is two or more and is uniformly arranged on fixed tray 1 along through hole edge
On, the piston rod top of hydraulic cylinder 2 is rotatably connected to pulley 3.The middle part of movable tray 4 offers what is passed through for marine riser string 10
Through hole, its outside is connected with one end of steel wire rope 5, and the other end of steel wire rope 5 is bypassed and is connected to after pulley 3 on fixed tray 1.
Further, two or more guiding slide rail 6 is set on fixed tray 1, and guiding slide rail 6 top is provided with limited block 7, leads
Draw slide rail 6 through movable tray 4, the up and down motion to movable tray 4 plays guide and limit effect, reduces the water of movable tray 4
It is flat to rock, reduce the direction of motion difference of the top of marine riser string 10 and bottom.
Based on above-mentioned suspension arrangement, present invention also offers a kind of suspension side of Deep Water Drilling Riser system hangs device
Method, comprises the following steps：
1) it is fixed on movable tray 4 to hang chuck 8, hang and be provided with chuck 8 suspension voussoir, marine riser string 10 is passed through bores
Raised platform around a well face 12 is transferred, and the joint flange connection on the top of marine riser string 10 is hung the suspension voussoir set in chuck 8 and completes marine riser string
10 suspension.
2) upper chamber of hydraulic cylinder 2 pumps into nitrogen, and lower chambers pump into hydraulic oil, forms pressure reduction and promotes shifting on piston rod, drives
Move in movable tray 4, suspension chuck 8 and marine riser string 10 and depart from drilling well table top.
3) monitor drilling platform lifting motion acceleration and the epicoele room of hydraulic cylinder 2 in nitrogen pressure change, set up liquid
The computation model of the inner high voltage of cylinder pressure 2 oil, the pressure of the lower chambers hydraulic oil of hydraulic cylinder 2 adjusted by hydraulic pump (not shown)
By force, piston rod movement acceleration and drilling platforms acceleration of motion are made conversely, marine riser string 10 with drilling platforms motion and work
Stopper rod drives the motion of marine riser to offset, and reduces marine riser string 10 and occurs being compressed axially, and improves the suspension peace of marine riser string 10
Quan Xing.
In above-described embodiment, step 2) pressure of nitrogen that pumps into is 3000psi.
In above-described embodiment, step 3) in drilling platform lifting motion acceleration can be measured by real-time monitoring platform or
Monitoring platform heave movement time history data seeking time derivative is obtained.
In above-described embodiment, step 3) in the inner high voltage of hydraulic cylinder 2 oil computation model method for building up it is as follows：
1. when drilling platforms acceleration of motion upwards, then piston rod is moved downward, by movable tray 4, hang chuck 8 and every
Water pipe string 10 can be obtained as entirety according to Newton's second law：
Mg-nTcos α=Mat (1)
M is movable tray 4, the gross mass for hanging chuck 8 and marine riser string 10 in formula, and T is the pulling force of steel wire rope 5, and n is liquid
The number of cylinder pressure, α is the angle of steel wire rope 5 and vertical direction, and g is acceleration of gravity, atFor the acceleration of drilling platforms real time kinematics
Angle value.
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (2)
P in formulaOilFor the pressure of the lower chambers hydraulic oil of hydraulic cylinder 2, PGasFor the pressure of the upper chamber's nitrogen of hydraulic cylinder 2, S1For liquid
The cross-sectional area of the inner carrier of cylinder pressure 2, S2For the cross-sectional area of the inner piston rod of hydraulic cylinder 2.
The computation model that can obtain hydraulic oil with reference to (1) (2) formula is：
2. when drilling platforms moves downward acceleration, then piston rod is moved upwards, by movable tray 4, hang chuck 8 and every
Water pipe string 10 can be obtained as entirety according to Newton's second law：
NTcos α-Mg=Mat (4)
M is movable tray 4, the gross mass for hanging chuck 8 and marine riser string 10 in formula, and T is the pulling force of steel wire rope 5, and n is liquid
The number of cylinder pressure, α is the angle of steel wire rope 5 and vertical direction, and g is acceleration of gravity, atFor the acceleration of drilling platforms real time kinematics
Angle value.
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (5)
P in formulaOilFor the pressure of the lower chambers hydraulic oil of hydraulic cylinder 2, PGasFor the pressure of the upper chamber's nitrogen of hydraulic cylinder 2, S1For liquid
The cross-sectional area of the inner carrier of cylinder pressure 2, S2For the cross-sectional area of the inner piston rod of hydraulic cylinder 2.
The computation model that can obtain hydraulic oil with reference to (4) (5) formula is：
3. if it is considered that the direction of platform acceleration, downwards to be upwards negative just, the computation model of hydraulic oil is：
M is movable tray 4, the gross mass for hanging chuck 8 and marine riser string 10 in formula, and T is the pulling force of steel wire rope 5, and n is liquid
The number of cylinder pressure, α is the angle of steel wire rope 5 and vertical direction, and g is acceleration of gravity, atFor the acceleration of drilling platforms real time kinematics
Degree, it is upwards negative, P just to be under orientationOilFor the pressure of the lower chambers hydraulic oil of hydraulic cylinder 2, PGasFor the upper chamber's nitrogen of hydraulic cylinder 2
Pressure, S1For the cross-sectional area of the inner carrier of hydraulic cylinder 2, S2For the cross-sectional area of the inner piston rod of hydraulic cylinder 2.
The present invention is only illustrated with above-described embodiment, and the structure of each part, set location and its connection all can be have
Changed.On the basis of technical solution of the present invention, all individual part is carried out improvement according to the principle of the invention or equivalent
Conversion, should not exclude outside protection scope of the present invention.
Claims (7)
1. a kind of suspension arrangement of Deep Water Drilling Riser system, it is characterised in that：It includes fixed tray, hydraulic cylinder, pulley
And movable tray；The fixed tray is fixedly connected on drilling well table top, is offered in the middle part of the fixed tray and is supplied water proof
The through hole that pipe string is passed through；The hydraulic cylinder is uniformly arranged on the fixed tray for two or more and along the through hole edge,
The piston rod top of the hydraulic cylinder is rotatably connected to pulley；Offer what is passed through for marine riser string in the middle part of the movable tray
Through hole, the outside of the movable tray is connected with one end of steel wire rope, and the other end of the steel wire rope is bypassed and connected after the pulley
It is connected on the fixed tray.
2. a kind of suspension arrangement of Deep Water Drilling Riser system as claimed in claim 1, it is characterised in that：The fixed support
Two or more guiding slide rail is set on disk, and the guiding slide rail passes through movable tray.
3. a kind of suspension arrangement of Deep Water Drilling Riser system as claimed in claim 2, it is characterised in that：The guiding is slided
The top of rail is provided with limited block.
4. a kind of suspension arrangement based on the Deep Water Drilling Riser system as described in any one of claims 1 to 3 and implement
Hanging method, comprises the following steps：
1) it is fixed on movable tray to hang chuck, hang and be provided with chuck suspension voussoir, marine riser string is through under drilling well table top
Put, the suspension that voussoir completes marine riser string of hanging set in chuck is hung in the joint flange connection on marine riser string top；
2) hydraulic cylinder upper chamber pumps into nitrogen, and lower chambers pump into hydraulic oil, forms pressure reduction and promotes shifting, drive activity support on piston rod
Move in disk, suspension chuck and marine riser string and depart from drilling well table top；
3) monitor drilling platform lifting motion acceleration and hydraulic cylinder epicoele room in nitrogen pressure change, set up in hydraulic cylinder
The computation model of hydraulic oil, the pressure of the hydraulic cylinder lower chambers hydraulic oil adjusted by hydraulic pump, makes piston rod movement acceleration
With drilling platforms acceleration of motion conversely, marine riser string drives the motion of marine riser to offset with the motion of drilling platforms with piston rod
Disappear, reduce marine riser string and occur being compressed axially.
5. a kind of hanging method of the suspension arrangement for deep water riser system as claimed in claim 4, it is characterised in that：
In the step 2) in, the pressure for pumping into nitrogen is 3000psi.
6. a kind of hanging method of the suspension arrangement for deep water riser system as claimed in claim 4, it is characterised in that：
In the step 3) in, the acceleration of the drilling platform lifting motion is measured or monitoring platform heave by real-time monitoring platform
Run duration course data seeking time derivative is obtained.
7. a kind of hanging method of the suspension arrangement for deep water riser system as claimed in claim 4, it is characterised in that：
In the step 3) in, the computation model method for building up of the hydraulic cylinder inner high voltage oil is as follows：
1. when drilling platforms acceleration of motion upwards, then piston rod is moved downward, and by movable tray, hangs chuck and marine riser string
As entirety, drawn according to Newton's second law：
Mg-nTcos α=Mat (1)
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is the individual of hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics accekeration；
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (2)
P in formulaOilFor the pressure of hydraulic cylinder lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1To live in hydraulic cylinder
The cross-sectional area of plug, S2For the cross-sectional area of piston in hydraulic cylinder bar；
Show that the computation model of hydraulic oil is with reference to (1) (2) formula：
2. when drilling platforms moves downward acceleration, then piston rod is moved upwards, by movable tray, hangs chuck and marine riser string
As entirety, can be obtained according to Newton's second law：
NTcos α-Mg=Mat (4)
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is the individual of hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics accekeration；
Force analysis is carried out for piston rod, its stress balance equation is：
POilS1=PGas(S1-S2)+2nTcosα (5)
P in formulaOilFor the pressure of hydraulic cylinder lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1To live in hydraulic cylinder
The cross-sectional area of plug, S2For the cross-sectional area of piston in hydraulic cylinder bar；
Show that the computation model of hydraulic oil is with reference to (4) (5) formula：
3. the direction of drilling platforms acceleration is considered, orientation is lower to be upwards negative just, and the computation model of hydraulic oil is：
M is movable tray, the gross mass for hanging chuck and marine riser string in formula, and T is the pulling force of steel wire rope, and n is the individual of hydraulic cylinder
Number, α is the angle of steel wire rope and vertical direction, and g is acceleration of gravity, atFor drilling platforms real time kinematics acceleration, POilFor liquid
The pressure of cylinder pressure lower chambers hydraulic oil, PGasFor the pressure of hydraulic cylinder upper chamber nitrogen, S1For the cross-sectional area of piston in hydraulic cylinder,
S2For the cross-sectional area of piston in hydraulic cylinder bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004606.6A CN106639918A (en) | 2017-01-04 | 2017-01-04 | Suspension device and suspension method of water-secluding pipe system for deepwater well drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004606.6A CN106639918A (en) | 2017-01-04 | 2017-01-04 | Suspension device and suspension method of water-secluding pipe system for deepwater well drilling |
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| CN106639918A true CN106639918A (en) | 2017-05-10 |
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ID=58844224
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| CN201710004606.6A Pending CN106639918A (en) | 2017-01-04 | 2017-01-04 | Suspension device and suspension method of water-secluding pipe system for deepwater well drilling |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386144A (en) * | 2018-04-26 | 2018-08-10 | 四川宏华石油设备有限公司 | A kind of marine riser conveyer |
| CN109209262A (en) * | 2018-10-24 | 2019-01-15 | 兰州兰石石油装备工程股份有限公司 | For clamping the hydraulic rotating chuck of marine drilling platform marine riser |
| CN109307584A (en) * | 2018-11-28 | 2019-02-05 | 西南石油大学 | A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform |
| CN109505537A (en) * | 2018-12-25 | 2019-03-22 | 中国海洋石油集团有限公司 | A kind of water proof tube suspension device and hanging method |
| 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 |
| CN112709539A (en) * | 2020-12-29 | 2021-04-27 | 中国电建集团中南勘测设计研究院有限公司 | Heave compensation device and method for deepwater drilling water-resisting casing |
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| CN105649560A (en) * | 2016-03-31 | 2016-06-08 | 中国石油大学(华东) | Marine floating type drilling riser flexible hanger |
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| US4620692A (en) * | 1984-10-31 | 1986-11-04 | Nl Industries, Inc. | Crown block compensator |
| US20110005768A1 (en) * | 2009-07-13 | 2011-01-13 | Coles Robert A | Method and apparatus for motion compensation during active intervention operations |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386144A (en) * | 2018-04-26 | 2018-08-10 | 四川宏华石油设备有限公司 | A kind of marine riser conveyer |
| CN108386144B (en) * | 2018-04-26 | 2024-04-09 | 四川宏华石油设备有限公司 | Riser conveying device |
| CN109209262A (en) * | 2018-10-24 | 2019-01-15 | 兰州兰石石油装备工程股份有限公司 | For clamping the hydraulic rotating chuck of marine drilling platform marine riser |
| CN109209262B (en) * | 2018-10-24 | 2023-08-22 | 兰州兰石石油装备工程股份有限公司 | Hydraulic rotary chuck for clamping marine drilling platform riser |
| CN109307584A (en) * | 2018-11-28 | 2019-02-05 | 西南石油大学 | A kind of device for simulating marine riser stress when deepwater drilling platform keeps away platform |
| CN109505537A (en) * | 2018-12-25 | 2019-03-22 | 中国海洋石油集团有限公司 | A kind of water proof tube suspension device and hanging method |
| 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 |
| CN112709539A (en) * | 2020-12-29 | 2021-04-27 | 中国电建集团中南勘测设计研究院有限公司 | Heave compensation device and method for deepwater drilling water-resisting casing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC research institute limited liability company Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Research Institute |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |