CN103924567A - Self-elevating drilling platform - Google Patents

Self-elevating drilling platform Download PDF

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Publication number
CN103924567A
CN103924567A CN201410189186.XA CN201410189186A CN103924567A CN 103924567 A CN103924567 A CN 103924567A CN 201410189186 A CN201410189186 A CN 201410189186A CN 103924567 A CN103924567 A CN 103924567A
Authority
CN
China
Prior art keywords
main hull
self
spud leg
drilling platform
elevating drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410189186.XA
Other languages
Chinese (zh)
Inventor
丁全智
葛涛
郭亮
孙新涛
龙海滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Heavy Machinery Co Ltd
Taiyuan Heavy Industry Co Ltd
Original Assignee
Tianjin Heavy Machinery Co Ltd
Taiyuan Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Heavy Machinery Co Ltd, Taiyuan Heavy Industry Co Ltd filed Critical Tianjin Heavy Machinery Co Ltd
Priority to CN201410189186.XA priority Critical patent/CN103924567A/en
Publication of CN103924567A publication Critical patent/CN103924567A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a self-elevating drilling platform which comprises a main hull, a cantilever beam, a drill stand and a derrick. A part of the cantilever beam slides out of the hull in operation, and the overall cantilever beam is retracted to the main hull when not in operation. The drill stand is arranged at the tail end of the cantilever beam, and the derrick is arranged on the drill stand. The derrick comprises a pile leg and a pile shoe. The number of the pile leg is one, the upper portion of the pile leg penetrates through the main hull, and the lower portion of the pile leg is arranged on the pile shoe, the pile leg is in transmission connection with the main hull, and the integrated center of gravity of the main hull and all objects born by the main hull is located in the pile leg. The number of the pile leg is only one, so that weight of the pile leg is lowered, the overall weight and construction cost of the self-elevating drilling platform are reduced, stress in the operating and towing processes is small, fewer pile legs occupy less space of the main hull, the available area of a main deck can be greatly increased, and the self-elevating drilling platform can be used for work in deep water areas and bad sea environments.

Description

A kind of self-elevating drilling platform
Technical field
The present invention relates to offshore boring island, especially relevant with the structure of self-elevating drilling platform that adapts to deepwater work.
Background technology
Self-elevating drilling platform claims again spud leg formula platform.This oil drilling device loads drilling machinery, power-equipment, consumption equipment, accommodation and some liftable spud legs on the platform of keeping afloat, and during drilling well, spud leg the end, and platform lifts away from sea certain altitude along spud leg; During displacement, platform is down to the water surface, and spud leg rises, and can it be dragged to new well location by tugboat.The advantage of jack-up unit is mainly that required steel are few, cost is low, under various sea situations, can carry out reposefully drillng operation.
At present, the platform shape of jack-up unit has triangle platform (having three pile legs), rectangular platform (having four pile legs) and pentagon platform (having five pile legs) etc.The shortcoming of jack-up unit is spud leg limited length, and its operating depth is restricted, and maximum operating depth is about 120m left and right.Surpass this depth of water, the increase of spud leg weight is very fast, and during towage simultaneously, spud leg rises very highly, all unfavorable to platform stability and spud leg intensity.Suffered power when how to reduce platform and working under compared with deepwater field and the severe sea situation of environment, alleviates platform deadweight, increases main deck usable area, reduces elevating mechanism usage quantity, saves construction cost, is industry assistant officer problem to be solved.
Summary of the invention
For problems of the prior art, object of the present invention for provide a kind of can be in deepwater environment operation and stressed little, the self-elevating drilling platform little, that main deck usable area is large, construction cost is low of conducting oneself with dignity.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of self-elevating drilling platform, comprise main hull, semi girder, rig floor and derrick, described semi girder part when operation slides onto outside hull, during not operation, be all recovered on main hull, described rig floor is arranged on the tail end of described semi girder, described derrick installation is on described rig floor, also comprise spud leg and shoe, described spud leg quantity is one, described spud leg top is through described main hull, bottom is arranged in described shoe, between described spud leg and described main hull, be in transmission connection, the overall center of gravity of described main hull and all article of carrying thereof is positioned at described spud leg.
Further, on described main hull, be provided with a large opening, described spud leg is through described large opening, on described spud leg, rack-plate is set, on the position of the corresponding described large opening of described main hull, motor is installed, described motor-driven is connected with driving gear, and described driving gear and described rack-plate are intermeshing.
Further, on the position of the corresponding described large opening of described main hull, driven gear is also installed, the relatively described driving gear setting of described driven gear, described rack-plate two sides is provided with bar tooth, the wherein bar tooth of one side and the engagement of described driving gear, the bar tooth of another side and the engagement of described driven gear.
Further, locking device is also installed on described main hull, described locking device is used for coordinating rack-plate described in locking, and described locking device is arranged on the bottom of described motor.
Further, the cross section of described spud leg is rectangular configuration, and described rack-plate is arranged on four bights of described spud leg, and described large opening is square, and described motor, described driving gear and described driven gear all four bights of corresponding described large opening are installed.
Further, the head of described shoe has pointed cone structure.
Further, the overall center of gravity of described main hull and all article of carrying thereof is positioned on the center line of described spud leg.
Beneficial effect of the present invention is, spud leg in the present invention is only one, therefore can reduce spud leg weight, thereby can reduce overall weight of the present invention and construction cost, and stressed little in operation and towage process, the minimizing of spud leg quantity has also reduced taking main hull space, thereby main deck usable area is increased greatly, and a spud leg is through main hull, be in transmission connection with main hull, not only can guarantee supporting role, and can under compared with deepwater field and the severe sea situation of environment, work.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Fig. 1 is the main TV structure schematic diagram of self-elevating drilling platform of the present invention;
Fig. 2 is the main TV structure schematic diagram that in self-elevating drilling platform of the present invention, spud leg is connected with main hull;
Fig. 3 is self-elevating drilling platform plan structure schematic diagram of the present invention;
Fig. 4 is the plan structure schematic diagram that in self-elevating drilling platform of the present invention, spud leg is connected with main hull.
The specific embodiment
The exemplary embodiments that embodies feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various variations on different embodiment, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the present invention.
As shown in figures 1 and 3, self-elevating drilling platform of the present invention, comprises main hull 1, semi girder 2, rig floor 3, derrick 4, spud leg 5 and shoe 6.Wherein, semi girder 2 one end are arranged on main hull 1, the unsettled setting of the other end, rig floor 3 is arranged on the free end of semi girder 2, and derrick 4 is arranged on rig floor 3, and spud leg 5 quantity are one, top is through main hull 1, and shoe 6 is installed in bottom, between spud leg 5 and main hull 1, is in transmission connection.In addition, for convenience of long-term life, on main hull, be also provided with living area 7, in emergency circumstances convenient escape is provided with lifeboat 8, facilitate urgent contact to be also provided with apron 9, so that helicopter rises and falls.For making spud leg 5 can play the supporting role of stability and safety, the overall center of gravity of main hull 1 and all article of carrying thereof is positioned at spud leg 5, best for to be positioned on the center line of spud leg 5.
As shown in Figure 2 and Figure 4, be provided with large opening 10 on main hull 1, spud leg 5 is through large opening 10, rack-plate 11 is set on spud leg 5, on the position of the corresponding large opening 10 of main hull 1, motor 14 is installed, motor 14 is connected with driving gear 15, and driving gear 15 is intermeshing with rack-plate 11.On the position of the corresponding large opening 10 of main hull 1, driven gear 16 is also installed, the relative driving gear 15 of driven gear 16 arranges, rack-plate 11 two sides are provided with bar tooth 12,13, wherein the bar tooth 12 of one side and driving gear 15 engagements, the bar tooth 13 of another side and driven gear 16 engagements.Locking device 17 is also installed on main hull 1, is provided with for coordinating the locking teeth 18 of locking rack-plate 11 on locking device 17, locking device 17 is arranged on the bottom of motor 14.
In the present invention, the cross section of spud leg 5 is rectangular configuration, rack-plate 11 is four, be arranged on four bights of spud leg 5, large opening 10 is square, and motor 14, driving gear 15 and driven gear 16 and locking device 17 are all corresponding quadruplet structures, and install in four bights of equal corresponding large opening 10, thereby improve the lifting force of spud leg 5 and coupling mechanism force, make to be connected between spud leg 5 and main hull 1 more safe and reliable.In addition, shoe 6 is arranged on the foot of spud leg 5, and the head of shoe 6 has pointed cone structure, so that improve driving depth.
Because self-elevating drilling platform is a great system engineering, therefore have a lot of different embodiment, only with a kind of embodiment, describe in detail below.
In the present embodiment, four angles of large opening 10 arrange respectively a set of lifting gear 19, rack-plate 11 is connected with a joggle with the driving gear 15 of lifting gear 19, it is lifting take-up device 20 that a circle box beam is established on lifting gear 19 tops, these lifting take-up device 20 Main Functions are to connect main hull 1 and lifting gear 19, and the bottom of spud leg 5 is arranged on pointed cone formula shoe 6 tops.Submersible pump group is established at the middle part, front side of spud leg 5, on main hull 1 deck of submersible pump group front side, establishes 2 hoisting geares, and hoisting gear is connected with submersible pump group by wire rope.2 row semi girder bases are installed on main hull 1 deck of spud leg 5 left and right sides, the biside plate of semi girder 2 is arranged on respectively in semi girder bottom tub, semi girder slide device connecting cantilever beam base and semi girder, by two cover semi girder slide devices, can make semi girder 2 to the slippage of stretching of the afterbody of main hull 1, semi girder 2 afterbody main deck larboards are established Hydraulic Station and are provided power source for semi girder slide device.She Mao road, the middle part machine of semi girder stockyard upside, an articulated lifting is established on the top of semi girder 2 larboard side plates, and semi girder afterbody downside is established sleeve pipe tensioner, and the upside of semi girder 2 afterbodys is established rig floor 3, rig floor 3 can left and right slippage on semi girder 2 afterbody tracks, and derrick 4 is arranged on 3, rig floor.On the deck of main hull 1 afterbody port and starboard, establish respectively a windlass and burner boom, a high holding power anchor is established respectively in the outside of main hull 1 afterbody port and starboard, and windlass is connected with high holding power anchor by wire rope.Main hull is established a Platform lifting devices on 1 Starboard sift deck, and main hull is established respectively a Platform lifting devices on 1 port and starboard deck, middle part.On main hull 1 deck according to job requirements reasonable Arrangement drill rod rack with stack drilling rod.Main hull 1 bow and bow port and starboard are established respectively the oblique Peak Tank of outboard, and the setting of the oblique Peak Tank of outboard can make half area in bow life building 7 take the platform external space, and this can save main deck area, also can make the long-pending increasing of life flooring, increase inhabitation personnel amount.A lifeboat 8 is established respectively on the port and starboard top in life building 7, can be used as in case of emergency supplying drillng operation personnel escape.Helistop 9 is established in 7 bow outsides, life building; helistop 9 is arranged on life building 7 by steel frame construction; towage chain is established in the bottom of helistop 9; towage chain one end is fixed on main hull 1 bow deck; the other end hangs on the steel frame construction under helistop 9, for platform displacement towage.
The course of work of the present embodiment is as described below:
When self-elevating drilling platform need to be shifted across operating area, submersible pump group on spud leg 5 is adjusted position under the effect of hoisting gear, start submersible pump group to 1 dozen of a certain amount of Ballast Water of main hull, be convenient to have high-order homework spud leg platform steadily to transfer to water surface towing condition.When Ballast Water reaches predetermined value, start lifting gear 19, main hull 1 can, under the gear motion of rack-plate 11 and driving gear 15, steadily decline.When main hull 1 drops on sea, then Ballast Water is discharged to outside main hull 1, during floatage energy balancing gravity, starts the high pressure punching stake system in pointed cone formula shoe 6.When shoe 6 silt is around broken up, to restart lifting gear 19 and upwards promote spud leg 5, at this moment shoe 6 is away from sea bed, and offshore boring island is steadily floating in towing condition.Then, towage chain is hung in to several towboat afterbodys, under the traction of towboat, self-elevating drilling platform arrives operating area like this.
Self-elevating drilling platform arrives behind operating area, first starts windlass and puts wire rope outward, with Platform lifting devices, high holding power anchor is placed on support vessel and is cast anchor, and completes the pre-determined bit of offshore boring island.Use again pump the whole outer rows of the Ballast Water in main hull 1, start lifting gear 19 and transfer spud leg 5, pointed cone formula shoe 6 also moves down with spud leg 5, when pointed cone formula shoe 6 contact sea beds enter mud certain depth, again move lifting gear 19 lifting main hulls 1, make main hull 1 leave sea, start fastening system 17 spud leg 5 rack-plates 11 are locked with locking teeth 18 engagements of fastening system 17, prevent that main hull 1 from moving down along spud leg 5.At this moment the gravitational load that whole offshore boring island is carried in spud leg 5, pointed cone formula shoe 6, under Action of Gravity Field, pointed cone formula shoe 6 can further be sunk, until enter mud certain depth, now self-elevating drilling platform completes location, steadily stands on marine in hanging operation state.
When self-elevating drilling platform completes location preparation work, start submersible pump group and beat Ballast Water adjustment in main hull 1.Start Hydraulic Station and drive two cover semi girder slide devices, make semi girder 2 by the slippage laterally of main hull 1 afterbody, maximum skidding distance is 30m.According to drilling well needs, the rig floor 3 that derrick 4 is installed can laterally slide on the track of semi girder 2 afterbody upsides, can make like this offshore boring island one-time positioning complete the task of making a call to 30 mouthfuls of wells.During rig operation, can usage platform loop wheel machine drilling rod be transferred to semi girder stockyard by main hull 1 deck, then drilling rod be put in the chute of Dao Mao road machine by articulated lifting, drilling rod be delivered on drilling floor surface, for drilling well.
Self-elevating drilling platform completes after drillng operation, again starts Hydraulic Station and drives two cover semi girder slide devices, semi girder 2 is shunk, until whole semi girder 2 is all regained platform main hull 1 toward main hull 1 slippage.Then play stake, self-elevating drilling platform is carried out to towage displacement.
Advantage of the present invention and beneficial effect are:
Self-elevating drilling platform of the present invention can carry out the operation of offshore oil natural gas exploration and development at the argillo arenaceous of depth of water 120m left and right or the marine site of muddy sea bed, drill capacity 10000m, possesses deep-well prospect pit, large displacement cluster well and horizontal well drilling function and formation testing miscellaneous function; Wind, wave, stream loading that self-elevating drilling platform of the present invention bears during operation under deepwater field and environment severe sea condition are less; Self-elevating drilling platform effective deck area of the present invention is about 1.5 times of three leg platforms, for arranging that drilling equipment, drilling rod, deck machinery and operating area provide more wide expensive real estate; Self-elevating drilling platform of the present invention is compared with traditional self-elevating drilling platform, lifting tightening structure, spud leg, shoe are kept to 1 by 3 respectively, lifting basis, locking basis, jacking system are reduced to 4 covers by 9 covers respectively, overall manufacturing cost savings 15%, and platform weight alleviates more than 3000 tons; Self-elevating drilling platform bow of the present invention is established the oblique Peak Tank of outboard, makes half area in life building take platform space outerpace, and superstructure area strengthens, and significantly increases inhabitation personnel amount; Pile legs of self-elevating drilling platform of the present invention encloses well large opening 10 only 1, and platform structure is optimized, and bulk strength and fatigue resistance significantly improve, and increase the service life; The semi girder 2 of self-elevating drilling platform of the present invention can longitudinal extension slippage, and rig floor 3 transverse shiftings are freely located, can 30 mouthfuls of wells of implementation platform one-time positioning probing, and operating efficiency is significantly improved.
Therefore, the present invention helps lend some impetus to the independent research of Naval Architecture and Ocean Engineering equipment, also contributes to the lifting of other marine oil and gas development of resources equipment research and development ability, and makes show-how.To breaking foreign technology monopolization, break away from the dependence to import, it is significant that promotion China marine engineering equipment moves towards high-end market, to accelerating China's exploitation deep-sea oil gas resource, has huge help.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize in the situation that do not depart from change and the retouching that scope and spirit of the present invention that the appended claim of the present invention discloses are done, within all belonging to the protection domain of claim of the present invention.

Claims (7)

1. a self-elevating drilling platform, comprise main hull, semi girder, rig floor and derrick, described semi girder part when operation slides onto outside hull, during not operation, be all recovered on main hull, described rig floor is arranged on the tail end of described semi girder, described derrick installation is on described rig floor, it is characterized in that, also comprise spud leg and shoe, described spud leg quantity is one, described spud leg top is through described main hull, bottom is arranged in described shoe, between described spud leg and described main hull, be in transmission connection, the overall center of gravity of described main hull and all article of carrying thereof is positioned at described spud leg.
2. self-elevating drilling platform as claimed in claim 1, it is characterized in that, on described main hull, be provided with a large opening, described spud leg is through described large opening, on described spud leg, rack-plate is set, on the position of the corresponding described large opening of described main hull, motor is installed, described motor-driven is connected with driving gear, and described driving gear and described rack-plate are intermeshing.
3. self-elevating drilling platform as claimed in claim 2, it is characterized in that, on the position of the corresponding described large opening of described main hull, driven gear is also installed, the relatively described driving gear setting of described driven gear, described rack-plate two sides is provided with bar tooth, the wherein bar tooth of one side and the engagement of described driving gear, the bar tooth of another side and the engagement of described driven gear.
4. self-elevating drilling platform as claimed in claim 3, is characterized in that, locking device is also installed on described main hull, and described locking device is used for coordinating rack-plate described in locking, and described locking device is arranged on the bottom of described motor.
5. self-elevating drilling platform as claimed in claim 3, it is characterized in that, the cross section of described spud leg is rectangular configuration, described rack-plate is arranged on four bights of described spud leg, described large opening is square, and described motor, described driving gear and described driven gear all four bights of corresponding described large opening are installed.
6. self-elevating drilling platform as claimed in claim 1, is characterized in that, the head of described shoe has pointed cone structure.
7. the self-elevating drilling platform as described in as arbitrary in claim 1-6, is characterized in that, the overall center of gravity of described main hull and all article of carrying thereof is positioned on the center line of described spud leg.
CN201410189186.XA 2014-05-06 2014-05-06 Self-elevating drilling platform Pending CN103924567A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201459A (en) * 2015-09-30 2015-12-30 南通中远船务工程有限公司 Loading method for adopting auxiliary drilling ship for analyzing drilling system module
CN105464064A (en) * 2016-01-11 2016-04-06 南通振华重型装备制造有限公司 System and method for cantilever beam heavy-duty test of self-elevating drilling platform
CN105643207A (en) * 2016-01-11 2016-06-08 南通振华重型装备制造有限公司 Construction technology of derrick of self-elevating drilling platform
CN105862696A (en) * 2016-04-06 2016-08-17 大连理工大学 Self-lifting type multifunctional ocean platform and work method thereof
CN106149713A (en) * 2016-07-05 2016-11-23 武汉船用机械有限责任公司 A kind of shoe
CN106218827A (en) * 2016-07-28 2016-12-14 太重(天津)滨海重型机械有限公司 Offshore wind farm O&M supports platform
CN106293666A (en) * 2015-05-28 2017-01-04 辽宁陆海石油装备研究院有限公司 450 feet of self-elevating drilling platform storm collection of illustrative plates calculation procedures
CN106555392A (en) * 2017-01-18 2017-04-05 中交航局第二工程有限公司 Antiskid flat-bottomed boat spud leg and the flat-bottomed boat with the spud leg
CN107059860A (en) * 2017-02-16 2017-08-18 广东精铟海洋工程股份有限公司 A kind of assembled with high precision method of offshore platform shoe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716011A1 (en) * 1994-12-07 1996-06-12 Imodco, Inc. Tension leg platform production system
GB2311319A (en) * 1996-03-21 1997-09-24 Kvaerner Oil & Gas Ltd Assembly method for offshore platform
CN101007562A (en) * 2007-01-18 2007-08-01 上海交通大学 Multiple column truss type spar platform with central well
CN202610781U (en) * 2012-05-29 2012-12-19 中国海洋石油总公司 Single-leg simple platform at sea
CN203007918U (en) * 2012-11-09 2013-06-19 大连船舶重工集团有限公司 Self-lifting type drilling platform based on truss-type stake legs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716011A1 (en) * 1994-12-07 1996-06-12 Imodco, Inc. Tension leg platform production system
GB2311319A (en) * 1996-03-21 1997-09-24 Kvaerner Oil & Gas Ltd Assembly method for offshore platform
CN101007562A (en) * 2007-01-18 2007-08-01 上海交通大学 Multiple column truss type spar platform with central well
CN202610781U (en) * 2012-05-29 2012-12-19 中国海洋石油总公司 Single-leg simple platform at sea
CN203007918U (en) * 2012-11-09 2013-06-19 大连船舶重工集团有限公司 Self-lifting type drilling platform based on truss-type stake legs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李卫红摘译: "多功能单腿支撑的自升式平台", 《中国海洋平台》, 30 April 1992 (1992-04-30) *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106293666A (en) * 2015-05-28 2017-01-04 辽宁陆海石油装备研究院有限公司 450 feet of self-elevating drilling platform storm collection of illustrative plates calculation procedures
CN105201459B (en) * 2015-09-30 2018-07-24 南通中远船务工程有限公司 A kind of drilling rig tender parsing well system module stowage
CN105201459A (en) * 2015-09-30 2015-12-30 南通中远船务工程有限公司 Loading method for adopting auxiliary drilling ship for analyzing drilling system module
CN105464064A (en) * 2016-01-11 2016-04-06 南通振华重型装备制造有限公司 System and method for cantilever beam heavy-duty test of self-elevating drilling platform
CN105643207A (en) * 2016-01-11 2016-06-08 南通振华重型装备制造有限公司 Construction technology of derrick of self-elevating drilling platform
CN105643207B (en) * 2016-01-11 2017-11-14 南通振华重型装备制造有限公司 A kind of self-elevating drilling platform derrick building technology
CN105464064B (en) * 2016-01-11 2017-06-23 南通振华重型装备制造有限公司 A kind of self-elevating drilling platform cantilever beam heavy-duty test system and method
CN105862696A (en) * 2016-04-06 2016-08-17 大连理工大学 Self-lifting type multifunctional ocean platform and work method thereof
CN106149713A (en) * 2016-07-05 2016-11-23 武汉船用机械有限责任公司 A kind of shoe
CN106149713B (en) * 2016-07-05 2018-04-27 武汉船用机械有限责任公司 A kind of shoe
CN106218827A (en) * 2016-07-28 2016-12-14 太重(天津)滨海重型机械有限公司 Offshore wind farm O&M supports platform
CN106218827B (en) * 2016-07-28 2018-03-16 太重(天津)滨海重型机械有限公司 Offshore wind farm O&M supports platform
CN106555392A (en) * 2017-01-18 2017-04-05 中交航局第二工程有限公司 Antiskid flat-bottomed boat spud leg and the flat-bottomed boat with the spud leg
CN106555392B (en) * 2017-01-18 2019-05-07 中交一航局第二工程有限公司 Antiskid flat-bottomed boat spud leg and flat-bottomed boat with the spud leg
CN107059860A (en) * 2017-02-16 2017-08-18 广东精铟海洋工程股份有限公司 A kind of assembled with high precision method of offshore platform shoe
CN107059860B (en) * 2017-02-16 2019-06-28 广东精铟海洋工程股份有限公司 A kind of assembled with high precision method of offshore platform shoe

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