CN110159210A - A kind of wave displacement compensation device - Google Patents
A kind of wave displacement compensation device Download PDFInfo
- Publication number
- CN110159210A CN110159210A CN201910338869.XA CN201910338869A CN110159210A CN 110159210 A CN110159210 A CN 110159210A CN 201910338869 A CN201910338869 A CN 201910338869A CN 110159210 A CN110159210 A CN 110159210A
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- Prior art keywords
- tube
- outer tube
- sliding block
- inner tube
- compensation device
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- Pending
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 28
- 238000005553 drilling Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 239000003208 petroleum Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/09—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
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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 present invention provides a kind of wave displacement compensation device, including tube assembly, and tube assembly includes outer tube, inner tube, outer tube sliding block, inner tube sliding block；Inner tube and outer coaxial tube, one end are sheathed in outer tube, and the other end is located at outside outer tube, and inner tube and outer tube have relative displacement in inner tube axial direction；Outer tube sliding block is installed on the one end of outer tube close to inner tube, and outer tube sliding block inner sidewall is abutted against with inner tube；Inner tube sliding block is axially above oppositely arranged with outer tube sliding block in inner tube, is installed on the one end of inner tube close to outer tube, and inner tube inner side of slider wall is abutted against with outer tube, and outer tube sliding block and inner tube sliding block cooperate, and inner tube is limited in outer tube close to one end of outer tube；Limiting section and auxiliary section are arranged on outer tube and inner tube, limiting section and auxiliary section cooperate, and inner tube axial-rotation is made to drive outer tube axial-rotation.The beneficial effect of technical solution proposed by the present invention is: to change in displacement caused by wave elevating movement, realizing efficient bit shift compensation, guarantees that drillng operation safely and effectively carries out.
Description
Technical field
The present invention relates to Marine oil and gas resource drilling and production technology field more particularly to a kind of wave displacement compensation devices.
Background technique
In recent years, the development and utilization of land petroleum resources are increasingly exhausted, step into decline with land petroleum resources
Phase, in contrast marine oil and gas was quickly grown in recent years, the weight that the afloat equity contention in various countries is related in world wide
Wanting factor is resource problem.According to incompletely statistics, it has been found that marine oil gas field more than 2000 is a, marine oil and gas reserves are accounted in the whole world at present
The 30-40% of whole oil and gas reserves, marine oil and gas yield account for 30% or more of whole oil and gas productions, and verify rate on 30% left side
The right side, the still early stage in exploration.China is ocean big country, possesses about 3,000,000 square kilometres of marine territory area, according to
The Third National petroleum resources evaluation result announced in 2008: China's offshore petroleum resources amount is 24,600,000,000 t, Zhan Quanguo petroleum
The 23% of total resources；Ocean natural gas stock number is 16,000,000,000,000 m3, accounts for the 30% of total amount.China's offshore oil and gas yield in 2011
More than 50,000,000 t oil gas equivalents, nearly the 20% of Zhan Quanguo oil gas annual output.
Marine oil and gas resource development and utilization in China's are started late, and the technical equipment of oil-gas exploration and development falls behind relatively,
The development and utilization equipment of Marine oil and gas resource is mainly offshore drilling platform and drill ship etc. at present, due under wave action
Sea level is constantly fluctuation up and down, offshore drilling platform and drill ship also continuous oscilaltion therewith, this is to offshore drilling
Operation has strong influence, not only drastically influences drilling efficiency, while also be easy to causeing safety accident.General drill bit and brill
Column is connected directly, and the cutting movement of drill bit is transmitted through by drill string come and the power on the other end and drilling platforms of drill string is defeated
Outlet is connected directly, therefore when drilling platforms rises with wave, drill bit can due to platform rising and be subsequently lifted bottom hole, lead
It causes drill bit to lose drilling function, influences drilling efficiency；When drilling platforms declines with decorporating for wave, drill bit will be born
The excessive bit pressure transmitted by drill string, this will cause biggish damage to drilling tool.Therefore it must be displaced caused by ocean wave motion
Variation, which carries out certain compensation, just can guarantee that drillng operation safely and effectively carries out.
Summary of the invention
In view of this, the embodiment provides a kind of wave displacement compensation devices, it is intended to wave elevating movement
Caused change in displacement realizes efficient bit shift compensation.
The embodiment of the present invention provides a kind of wave displacement compensation device, including tube assembly, and the tube assembly includes:
Outer tube；
Inner tube, with the outer coaxial tube, one end is sheathed in the outer tube, and the other end is located at outside the outer tube, described interior
Pipe has relative displacement in said inner tube axial direction with the outer tube；
Outer tube sliding block, is installed on the outer tube close to one end of said inner tube, the outer tube sliding block inner sidewall with it is described interior
Pipe abuts against；And
Inner tube sliding block is axially above oppositely arranged with the outer tube sliding block in said inner tube, is installed on said inner tube close to institute
One end of outer tube is stated, said inner tube inner side of slider wall is abutted against with the outer tube, and the outer tube sliding block is matched with said inner tube sliding block
It closes, said inner tube is limited in the outer tube close to one end of the outer tube；
Wherein, limiting section and auxiliary section, the limiting section and the auxiliary section are arranged in the outer tube and said inner tube
Cooperation makes inner tube axial-rotation that outer tube be driven axially to revolve to limit the activity relatively of the outer tube and said inner tube in the circumferential
Turn.
Further, said inner tube is square tube, and the limiting section is the lateral wall of said inner tube；
The outer tube sliding block is annularly arranged, and the outer tube sliding block inner sidewall is square setting, and the auxiliary section is described
The inner sidewall of the inner sidewall of outer tube sliding block, the lateral wall of said inner tube and the outer tube sliding block cooperates.
Further, the outer tube sliding block inner sidewall offers the first mounting groove of notch inwardly, first mounting groove
Outer tube sealing ring is inside installed, for sealing the outer tube sliding block and said inner tube.
Further, the outer tube is square tube, and the limiting section is the inner sidewall of the outer tube；
Said inner tube sliding block is circlewise arranged, and said inner tube sliding block lateral wall is square setting, and the auxiliary section is described
The lateral wall of inner tube sliding block, the inner sidewall of the outer tube and the lateral wall of said inner tube sliding block cooperate.
Further, said inner tube sliding block lateral wall offers the second mounting groove of notch outwardly, second mounting groove
Inner tube sealing ring is inside installed, is used for said inner tube sliding block and the outer seal of tube.
Further, the outer tube and said inner tube are formed with closed cavity, and said inner tube is located at one in the outer tube
End side wall has provided venthole, to be connected to inside the closed cavity and said inner tube.
It further, further include the first connector and the second connector, first connector and second connector are separately connected
In the both ends of the tube assembly；
First connector for connecting the tube assembly and drilling rod, second connector for connect the tube assembly with
Drill collar.
The technical solution that the embodiment of the present invention provides has the benefit that drilling platforms drilling project at sea
In, when wave comes interim, drilling platforms is lifted with the rising of wave, and drilling rod and inner tube consequently also rise, due to inner tube and
Outer tube has a relative displacement in said inner tube axial direction, and outer tube is by the gravity of lower square drill collar, therefore outer tube will not be with
The promotion of inner tube and and then rise, the relative displacement generated between inner and outer tubes compensates the rising of wave displacement, under
The drill bit of side still remains bit pressure and is crept into and be not affected.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of one embodiment of wave displacement compensation device provided by the invention；
Fig. 2 is the enlarged diagram in Fig. 1 at A；
Fig. 3 is the enlarged diagram in Fig. 1 at B；
In figure: 1- tube assembly, 11- outer tube, 12- inner tube, 121- venthole, 13- outer tube sliding block, the first mounting groove of 131-,
132- outer tube sealing ring, 14- inner tube sliding block, the second mounting groove of 141-, 142- inner tube sealing ring, 15- closed cavity, 2- first connect
Head, the second connector of 3-, 4- drilling rod, 5- drill collar.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Referring to Figure 1, the embodiment of the present invention provides a kind of wave displacement compensation device, the wave displacement compensation device packet
Tube assembly 1, the first connector 2 and the second connector 3 are included, first connector 2 and second connector 3 are connected to the pipe group
The both ends of part 1, first connector 2 is for connecting 1 upper end of tube assembly and drilling rod 4, and second connector 3 is for connecting institute
State 1 lower end of tube assembly and drill collar 5.
The tube assembly 1 includes outer tube 11, inner tube 12, outer tube sliding block 13 and inner tube sliding block 14.Outer tube 11 and inner tube 12
It is both ends in the hollow tube of opening setting, in the present embodiment, outer tube 11 and inner tube 12 are square tube.Said inner tube 12 with it is described
Outer tube 11 is coaxial, and one end is sheathed in the outer tube 11, and the other end is located at outside the outer tube 11.In the present embodiment, inner tube 12
Above outer tube 11,12 upper end of inner tube is connect with drilling rod 4 by the first connector 2, and 11 lower end of outer tube and drill collar 5 pass through the second connector
3 connections, connection type are to be threadedly coupled, and inner tube 12 also can be set in 11 lower section of outer tube, are not specifically limited herein.
Outer tube sliding block 13 is installed on 11 upper end of outer tube, 13 inner sidewall of outer tube sliding block and 12 lateral wall of said inner tube
Abut against, outer tube sliding block 13 is annularly arranged, the inner sidewall of outer tube sliding block 13 be it is rectangular, outer tube sliding block 13 and outer tube 11 can be one
Body formed setting, in the present embodiment, outer tube sliding block 13 is to be threadedly coupled with 11 upper end of outer tube.The inner sidewall of outer tube sliding block 13 and institute
It states 12 lateral wall of inner tube to be adapted, inner tube 12 can be made during rotation, outer tube 11 is passed torque to and drive 11 turns of outer tube
It is dynamic.13 inner sidewall of outer tube sliding block offers the first mounting groove 131 of notch inwardly, installation in first mounting groove 131
There is outer tube sealing ring 132, for will seal between 13 inner sidewall of outer tube sliding block and 12 lateral wall of said inner tube.
Inner tube sliding block 14 is axially above oppositely arranged with the outer tube sliding block 13 in said inner tube 12, is installed on said inner tube 12
Lower end, 14 lateral wall of said inner tube sliding block are abutted against with the outer tube 11, and the outer tube sliding block 13 is matched with said inner tube sliding block 14
It closes, 12 lower end of said inner tube is limited in the outer tube 11.Inner tube sliding block 14 is annularly arranged, the outside of inner tube sliding block 14
Wall is rectangular setting, and inner tube sliding block 14 and inner tube 12 can be integrally formed setting, in the present embodiment, inner tube sliding block 14 and inner tube
12 lower ends are to be threadedly coupled.The lateral wall of inner tube sliding block 14 is adapted with 11 inner sidewall of outer tube, and inner tube 12 can be made to rotate
In the process, it passes torque to outer tube 11 and outer tube 11 is driven to rotate.14 lateral wall of said inner tube sliding block offers notch outwardly
The second mounting groove 141, inner tube sealing ring 142 is installed in second mounting groove 141, for by said inner tube sliding block 14 with
It is sealed between the outer tube 11, prevents thering is fluid leakage to lead to pressure leakage between inner tube 12 and outer tube 11.Due to being provided with outer tube
Sliding block 13 and inner tube sliding block 14, are formed with closed cavity 15, said inner tube 12 is located between the outer tube 11 and said inner tube 12
One end side wall in the outer tube 11 has provided venthole 121, to be connected to inside the closed cavity 15 and said inner tube 12.
In the present embodiment, the inner sidewall of the lateral wall of said inner tube 12 and the outer tube 11 forms limiting section, the outer tube
The lateral wall of the inner sidewall of sliding block 13 and said inner tube sliding block 14 forms auxiliary section, the lateral wall of said inner tube 12 and described outer
The inner sidewall of pipe sliding block 13 cooperates, and the inner sidewall of the outer tube 11 and the lateral wall of said inner tube sliding block 14 cooperate,
Since outer tube 11 and inner tube 12 are square tube, cooperated by the limiting section and the auxiliary section, with limit the outer tube 11 with
The activity relatively of said inner tube 12 in the circumferential, makes inner tube 12 that can drive 11 axial-rotation of outer tube in axial-rotation.The limit
Position portion may be along the convex ribs that inner tube 12 is axial on 11 inner sidewall of 12 lateral wall of inner tube or outer tube, and the auxiliary section can be institute
Stating the groove on 12 lateral wall of 11 inner sidewall of outer tube or inner tube with convex ribs cooperation can also be limited by the cooperation of convex ribs and groove
Relatively activity of the outer tube 11 with said inner tube 12 in the circumferential.
At sea in drilling platforms drilling project, the power intake on drilling platforms is mounted on by connecting with drilling rod 4
It connects and dynamic torque is transmitted to wave displacement compensation device, wave displacement compensation device continues to deliver torque to the drill collar of lower section
5, drill collar 5 drives drill bit rotation to realize the transmitting of power from power input terminal to drill bit, achievees the purpose that cutting drilling.
When wave comes temporarily, drilling platforms is lifted with the rising of wave, and drilling rod 4 and inner tube 12 consequently also rise, by
Be between inner tube 12 and outer tube 11 connected by outer tube sliding block 13 with inner tube sliding block 14 with the fit system that wall surface contacts, and
Outer tube 11 by lower square drill collar 5 gravity, therefore outer tube 11 will not with the promotion of inner tube 12 and and then rise, 12 He of inner tube
The relative displacement generated between outer tube 11 compensates the rising displacement of wave, and the drill bit of 3 lower section of the second connector is still kept
Bit pressure crept into and be not affected.Since the inside of inner tube 12 is connected to closed cavity 15 so that the pressure in inner tube 12 and
The pressure of closed cavity 15 is consistent, so that will not influence inner tube 12 when inner tube 12 rises or falls and outer tube 11 occurs
Relative movement causes drill pressure so set, platform will not be declined bring pressure and reach bottom hole, it can be achieved that bit shift compensation
It is excessive, or even the safety accidents such as damage for causing drilling tool.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of wave displacement compensation device, which is characterized in that including tube assembly, the tube assembly includes:
Outer tube；
Inner tube, with the outer coaxial tube, one end is sheathed in the outer tube, and the other end is located at outside the outer tube, said inner tube with
The outer tube has relative displacement in said inner tube axial direction；
Outer tube sliding block is installed on the outer tube close to one end of said inner tube, the outer tube sliding block inner sidewall and said inner tube phase
It abuts；And
Inner tube sliding block is axially above oppositely arranged with the outer tube sliding block in said inner tube, is installed on said inner tube close to described outer
One end of pipe, said inner tube inner side of slider wall are abutted against with the outer tube, and the outer tube sliding block and said inner tube sliding block cooperate, with
Said inner tube is limited in the outer tube close to one end of the outer tube；
Wherein, it being arranged with limiting section and auxiliary section in the outer tube and said inner tube, the limiting section and the auxiliary section cooperate,
To limit the activity relatively of the outer tube and said inner tube in the circumferential, inner tube axial-rotation is made to drive outer tube axial-rotation.
2. wave displacement compensation device as described in claim 1, which is characterized in that said inner tube is square tube, the limiting section
For the lateral wall of said inner tube；
The outer tube sliding block is annularly arranged, and the outer tube sliding block inner sidewall is square setting, and the auxiliary section is the outer tube
The inner sidewall of the inner sidewall of sliding block, the lateral wall of said inner tube and the outer tube sliding block cooperates.
3. wave displacement compensation device as claimed in claim 2, which is characterized in that the outer tube sliding block inner sidewall offers slot
Mouth the first mounting groove inwardly is equipped with outer tube sealing ring in first mounting groove, for by the outer tube sliding block with it is described
The interior seal of tube.
4. wave displacement compensation device as claimed in claim 3, which is characterized in that the outer tube is square tube, the limiting section
For the inner sidewall of the outer tube；
Said inner tube sliding block is circlewise arranged, and said inner tube sliding block lateral wall is square setting, and the auxiliary section is said inner tube
The lateral wall of sliding block, the inner sidewall of the outer tube and the lateral wall of said inner tube sliding block cooperate.
5. wave displacement compensation device as claimed in claim 4, which is characterized in that said inner tube sliding block lateral wall offers slot
Mouth the second mounting groove outwardly is equipped with inner tube sealing ring in second mounting groove, for by said inner tube sliding block with it is described
The outer seal of tube.
6. wave displacement compensation device as claimed in claim 5, which is characterized in that the outer tube is formed with close with said inner tube
Close cavity, one end side wall that said inner tube is located in the outer tube has provided venthole, be connected to the closed cavity with it is described
Internal tube.
7. wave displacement compensation device as described in claim 1, which is characterized in that it further include the first connector and the second connector,
First connector and second connector are connected to the both ends of the tube assembly；
First connector is for connecting the tube assembly and drilling rod, and second connector is for connecting the tube assembly and boring
Quickly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338869.XA CN110159210A (en) | 2019-04-25 | 2019-04-25 | A kind of wave displacement compensation device |
| AU2020100296A AU2020100296A4 (en) | 2019-04-25 | 2020-02-28 | Wave displacement compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338869.XA CN110159210A (en) | 2019-04-25 | 2019-04-25 | A kind of wave displacement compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110159210A true CN110159210A (en) | 2019-08-23 |
Family
ID=67638701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338869.XA Pending CN110159210A (en) | 2019-04-25 | 2019-04-25 | A kind of wave displacement compensation device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110159210A (en) |
| AU (1) | AU2020100296A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021966A (en) * | 2019-12-10 | 2020-04-17 | 贵州高峰石油机械股份有限公司 | Settlement compensation method and settlement compensator for offshore drilling |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998280A (en) * | 1973-09-04 | 1976-12-21 | Schlumberger Technology Corporation | Wave motion compensating and drill string drive apparatus |
| US4282939A (en) * | 1979-06-20 | 1981-08-11 | Exxon Production Research Company | Method and apparatus for compensating well control instrumentation for the effects of vessel heave |
| WO1998026151A2 (en) * | 1996-12-10 | 1998-06-18 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Method and device for driving bore holes, specially exploring and extraction drillings in the sea bottom |
| CN2380779Y (en) * | 1998-04-09 | 2000-05-31 | 魏山洲 | Balancing expansion joint for pipeline |
| CN206554903U (en) * | 2017-01-03 | 2017-10-13 | 中国石油天然气股份有限公司 | Thermal stress compensator for casing of thermal production well |
| US20170321495A1 (en) * | 2016-05-05 | 2017-11-09 | Baker Hughes Incorporated | Heave Compensator for Constant Force Application to a Borehole Tool |
| CN107939307A (en) * | 2017-12-20 | 2018-04-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of long telescopic distance compensation pipe nipple and compensation method |
| WO2018209407A1 (en) * | 2017-05-19 | 2018-11-22 | AME Pty Ltd | Compensated elevator link |
| CN208236357U (en) * | 2018-05-08 | 2018-12-14 | 中交第四航务工程勘察设计院有限公司 | A kind of offshore drilling casing wave compensating device |
-
2019
- 2019-04-25 CN CN201910338869.XA patent/CN110159210A/en active Pending
-
2020
- 2020-02-28 AU AU2020100296A patent/AU2020100296A4/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998280A (en) * | 1973-09-04 | 1976-12-21 | Schlumberger Technology Corporation | Wave motion compensating and drill string drive apparatus |
| US4282939A (en) * | 1979-06-20 | 1981-08-11 | Exxon Production Research Company | Method and apparatus for compensating well control instrumentation for the effects of vessel heave |
| WO1998026151A2 (en) * | 1996-12-10 | 1998-06-18 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Method and device for driving bore holes, specially exploring and extraction drillings in the sea bottom |
| CN2380779Y (en) * | 1998-04-09 | 2000-05-31 | 魏山洲 | Balancing expansion joint for pipeline |
| US20170321495A1 (en) * | 2016-05-05 | 2017-11-09 | Baker Hughes Incorporated | Heave Compensator for Constant Force Application to a Borehole Tool |
| CN206554903U (en) * | 2017-01-03 | 2017-10-13 | 中国石油天然气股份有限公司 | Thermal stress compensator for casing of thermal production well |
| WO2018209407A1 (en) * | 2017-05-19 | 2018-11-22 | AME Pty Ltd | Compensated elevator link |
| CN107939307A (en) * | 2017-12-20 | 2018-04-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of long telescopic distance compensation pipe nipple and compensation method |
| CN208236357U (en) * | 2018-05-08 | 2018-12-14 | 中交第四航务工程勘察设计院有限公司 | A kind of offshore drilling casing wave compensating device |
Non-Patent Citations (1)
| Title |
|---|
| 华东石油学院矿机教研室: "《石油钻采机械》", 30 June 1980 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021966A (en) * | 2019-12-10 | 2020-04-17 | 贵州高峰石油机械股份有限公司 | Settlement compensation method and settlement compensator for offshore drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020100296A4 (en) | 2020-04-02 |
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Application publication date: 20190823 |