CN101424177A - Down-in type marginal oil field underwater drilling basal disc for drilling ship and manufacture and installation method - Google Patents
Down-in type marginal oil field underwater drilling basal disc for drilling ship and manufacture and installation method Download PDFInfo
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- CN101424177A CN101424177A CNA2007101767453A CN200710176745A CN101424177A CN 101424177 A CN101424177 A CN 101424177A CN A2007101767453 A CNA2007101767453 A CN A2007101767453A CN 200710176745 A CN200710176745 A CN 200710176745A CN 101424177 A CN101424177 A CN 101424177A
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- body frame
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Abstract
The invention discloses a running type underwater drilling template of a drilling ship in a marginal oil-gas field, which comprises a main body framework and an accessory of the drilling template, wherein the main body framework is a rectangular framework body consisting of horizontal rods and vertical rods which are fixed together; the main body framework is provided with a vertical well hole sleeve two sides of which are fixed with pile pipe sleeves; and slanting knightheads are arranged in the rectangular frameworks which are formed between the horizontal rods and between the horizontal rods and the vertical rods. A method for manufacturing and mounting the underwater drilling template comprises the following steps: (1) manufacturing the underwater drilling template from both the upper part and the lower part simultaneously, and then welding the upper part and the lower part together; and (2) using a hoisting device to be connected with a cutting sleeve device on the top of the underwater drilling template and a lifting lug so as to hoist the underwater drilling template into water, wherein the convergence points of a hoisting rope in the hoisting device after the hoisting rope is straightened up are always positioned on the plumb line of the underwater drilling template so that the underwater drilling template is always kept in a horizontal state to get to the preset place on the sea floor. The underwater drilling template has the advantages of stable structure, reasonable stress, and lightened weight; the method for manufacturing the underwater drilling template can shorten the construction period; and the method for mounting the underwater drilling template is safe, smooth and convenient, requires fewer resources, and has low cost.
Description
Technical field
The present invention relates to the underwater drilling basal disc that uses in the development operation of marginal field and make mounting method.
Background technology
Expansion year by year along with marine oil and gas development operation amount, the demand of underwater drilling basal disc is increasing, subsea template is a kind of equipment that the offshore oil drilling operation is used, be positioned over the subsea wellheads place, mainly play the guide bur well tool, accept subsea equipment and under water blowout preventer set, carry out the preboring producing well, use the direction peg on the basal disc to carry out effects such as jacket butt joint location according to the well spacing of arranging on the subsea template.The underwater drilling basal disc of porous eye generally has 2 x, 2 specifications, 2 x, 3 specifications, 3 x, 3 specifications, 3 x, 4 specifications even larger sized basal disc, wherein the basal disc weight of 2 x, 2 specifications is just above 30 tons, appearance and size reaches 9.8 x, 5.5 x 4.3m, underwater drilling basal disc generally comprises main body frame and annex, wherein the basal disc main body frame will bear the impact force effect that jacket docks with the basal disc direction peg, impact force reaches more than 100 tons usually, therefore main body frame adopts the major-diameter thick-wall steel pipe to build usually, the form of structure of basal disc main body frame was the form that a plurality of cuboids are formed big cuboid in the past, the basal disc rod member has only main cross bar, main montant, main vertical rod, this form structure is simple, in order to guarantee the intensity of main body frame, the Cross section Design of rod member is very big, and is very heavy; The basal disc main body also comprises well head cover, stake pipe box and horn mouth etc., and the annex of basal disc has nothing in common with each other according to the different purposes annexes of basal disc, mainly includes dashboard, cat ladder, lifting annex, anode, level gauge, fluorescence labelling or the like.
In the construction of underwater drilling basal disc, for fear of lifting repeatedly and moving, the general employing from down and the last construction method that is shaped, the basal disc height generally all has more than 4 meters high, weight is above 30 tons, during construction, when building, basal disc on the construction place, makes moulding bed usually, on moulding bed, build the under(-)chassis of basal disc then, the basal disc vertical rod is installed on under(-)chassis again, the top frame member is installed at last, the well head cover and the stake pipe box of basal disc are installed then, horn mouth and basal disc annex are installed at last, Here it is from down and on the basal disc construction method, adopt the construction duration of this method basal disc long.
The mode that is lowered to of subsea template mainly contained two kinds in the past, a kind of is to lift on the barge building good basal disc, after drill ship is dragged to the anchorage, with tugboat the barge that carries basal disc is dragged to the drill ship below, the lifting device of transferring drilling tool and basal disc from turntable surface is connected, by carrying basal disc on the drilling tool, be fixed on the moon pool below, drill ship is dragged to the operation well location, untie fixingly again, transfer basal disc by drilling tool, the shortcoming of this method be drill ship to be dragged to earlier the anchorage install basal disc and fixing after be dragged to well location again and install, the shared time is long, and resource is many---and need a barge and two tugboats to cooperate; Second method is to lift barge earlier building good basal disc; directly drill ship is dragged to well location; tugboat is dragged to well location to the barge that carries basal disc and is dragged to the drill ship below; the lifting device of transferring drilling tool and basal disc from turntable surface is connected; by carrying basal disc on the drilling tool; transfer the installation basal disc after removing barge; this method is the mating operation of carrying out barge and drill ship at the well location scene than the shortcoming of first method; the danger of barge collision drill ship appears easily; the weather at scene and sea situation require high during operation; usually can stand-by time occur and cause the prolongation of activity duration, simultaneously, still need to take the resource of a barge and two tugboats.
Underwater drilling basal disc is transported to offshore boring island from building the place lifting, and must use lifting device down to the seabed.Underwater drilling basal disc in the past only welds a hanger respectively on its four angles, the lifting device that underwater drilling basal disc is used during down to the seabed includes only the lifting short circuit of a band drilling rod screw thread, four wire rope and lifting shackle, during the underwater drilling basal disc entry, one end of four wire rope is connected on four hangers of lifting short circuit, an other end then is connected on the hanger of four jiaos of underwater drilling basal discs by shackle, the lifting short circuit is connected with drilling rod by the screw thread at its top, carries out transferring of underwater drilling basal disc.Because the volume and the weight of underwater drilling basal disc are bigger, for the purpose of safety, underwater drilling basal disc needs the maintenance level in hoisting process, but because the requirement of actual job, the underwater drilling basal disc structure can't be designed to symmetry usually, the center of gravity that causes underwater drilling basal disc not under water drilling template in the heart, therefore, during the underwater drilling basal disc lifting, for making underwater drilling basal disc maintenance level, must adopt the different wire rope of length, the Rendezvous Point after wire rope is straightened is the drilling template top under water, at this moment the line of the Rendezvous Point of wire rope and underwater drilling basal disc is exactly the plumb line of basal disc, but in actual mechanical process, because not sign and the reference of the position of wire rope Rendezvous Point, so each bar length of steel wire rope is difficult to determine, if each length of steel wire rope is improper, in hoisting process, light then the inclination of underwater drilling basal disc takes place, then can be when serious because of stressed its tolerance range that exceeds of certain bar wire rope, cause wire cable rupture, cause security incident.In addition, after drilling template enters into water under water, because underwater drilling basal disc is subjected to buoyancy function, the position of centre of gravity of underwater drilling basal disc in water compared with aerial position of centre of gravity and can be offset, and causes underwater drilling basal disc to keep horizontal equilibrium and run-off the straight after the entry in air.In addition, in the hoisting process of underwater drilling basal disc in water,, be difficult to the balance and stability of control underwater drilling basal disc in water, increased the difficulty of underwater drilling basal disc orientation adjustment and location because the effect of ocean current makes underwater drilling basal disc that bigger rocking be arranged.Existing underwater drilling basal disc is in hoisting engineering, lifting device only is flexibly connecting by wire rope with being connected of underwater drilling basal disc, can't apply active force to underwater drilling basal disc well, can not make underwater drilling basal disc keep balance and stability preferably, and carry out position, orientation adjustment and location under water.
Summary of the invention
The problem to be solved in the present invention provide a kind of Stability Analysis of Structures, stressed rationally, alleviate the underwater drilling basal disc of basal disc weight.
The problem that the present invention further will solve provides a kind of manufacture method of saving the duration.
The problem that the present invention will solve in addition is the mounting method of the down-in type marginal oil field underwater drilling basal disc for drilling ship of lifting safety, maintenance basal disc horizontal stable.
The present invention solves the problems referred to above by the following technical solutions: a kind of down-in type marginal oil field underwater drilling basal disc for drilling ship, comprise basal disc main body frame, annex, wherein, the basal disc main body frame is the cuboid support body that fixedly is made of horizontal bars and vertical rod member, the basal disc main body frame is provided with vertical wellbore casings, its both sides are fixed with a pipe box, between horizontal bars, in horizontal bars and the rectangular frame that vertically forms between the rod member inclined support bar are set.
Vertical wellbore casings is arranged on horizontal bars and surrounds rectangular center, and inclined support bar one end between the described horizontal bars is fixed on the crosspoint of adjacent two horizontal bars, and the other end is fixed on the wellbore casings.
Inclined support bar two ends in the rectangular frame that horizontal bars and vertical rod member surround are separately fixed on main body frame top, two horizontal bars in bottom.
The horizontal bars at the main body frame top of intersecting with the basal disc plumb line is provided with the cutting ferrule device, and the main body frame of basal disc is provided with the hoisting and locating fixture.
Described hoisting and locating fixture is a hanger, and hanger is arranged on the horizontal bars at main body frame top.
Described cutting ferrule device is a column construction, and its underpart is fixed on the horizontal bars at main body frame top, and the upper surface is provided with a counterbore, and described counterbore hole wall is provided with at least one J-shaped groove.
A kind of manufacturing mounting method of down-in type marginal oil field underwater drilling basal disc for drilling ship may further comprise the steps:
(1), the manufacturing of basal disc: at first, two parts were made simultaneously about basal disc divided, and then the basal disc top and the bottom of making were welded together; A plurality of hoisting and locating fixtures are welded in last welding and the cutting ferrule device that lifting device is used on the horizontal bars crossover location at basal disc plumb line and main body frame top on the main body frame of basal disc;
(2), the installation of basal disc: use lifting device to be connected on cutting ferrule device and the hanger, in the hoisting process, Rendezvous Point after lifting rope in the lifting device is straightened is positioned on the plumb line of basal disc all the time, keeps basal disc to be in level substantially always and arrives the predetermined area, seabed.
The manufacturing mounting method of down-in type marginal oil field underwater drilling basal disc for drilling ship preferably includes following steps:
(1), the manufacturing of basal disc: two parts were made simultaneously about basal disc divided, basal disc top is made the inclined support bar manufacturing comprise between horizontal bars, wellbore casings, last horizontal bars and the wellbore casings and is connected, the basal disc bottom make comprise the bottom level rod member, vertically rod member, inclined support bar manufacturing be connected, then the basal disc top lifting of making is placed on vertical rod member and the inclined support bar and welds, stake pipe box and support bar thereof then are installed; Weld the cutting ferrule device that is used with lifting device at basal disc plumb line and main body frame top, horizontal rod member crossover location at last, the a plurality of hoisting and locating fixtures of welding on the main body frame of basal disc, described hoisting and locating fixture is a hanger, and the width of whole basal disc is less than the width of drill ship moon pool;
(2), the installation of basal disc: basal disc is transported to drill ship from building the place lifting, be placed on the deck on moon pool next door, after basal disc is transported to well location with drill ship, use lifting device to be connected on cutting ferrule device and the hanger, basal disc is transferred from the moon pool of drill ship, in the hoisting process, rigidity cylinder cutting ferrule in the lifting device is connected with the cutting ferrule device on the basal disc main body frame, guarantee that the Rendezvous Point after the lifting rope is straightened is positioned on the plumb line of basal disc all the time, keep basal disc to be in level substantially always and arrive predetermined place, seabed.
It is this principle of stable structure that basal disc main frame structure of the present invention utilizes triangular structure, in the basal disc rectangular frame, increase many inclined support bars, the basal disc framework forms many triangular structures, makes that the basal disc frame construction is more stable, more reasonable stress, each rod member is stressed more even, therefore, under same load-bearing state, reduced the sectional dimension of framework mobile jib spare, the basal disc weight that alleviates has greatly reduced the basal disc cost.
In order to shorten the duration that basal disc is built, two parts were made simultaneously about basal disc of the present invention divided, the structure on top is than bottom complexity, on the working platform in place, make separately, the lower part basal disc is directly made on moulding bed, the lower part bottom frame is finished back vertical rod member of assembling and inclined support bar, then the basal disc top lifting of making is placed on vertical rod member and the inclined support bar and welds, basal disc stake pipe box and its support bar are installed at last, and this construction program has shortened the duration that basal disc is built greatly;
In the mounting method of the present invention, basal disc lifts drill ship from the construction place and adopts tugboat to transport, and utilizes the drill ship crane that basal disc is hung on drill ship from tugboat, and is placed on the deck on moon pool next door; Basal disc is transferred basal disc after being transported to well location with drill ship again, and this mounting method of transferring is subjected to the influence of weather and sea situation much smaller; Basal disc for small size 2 X 2 specifications, the basal disc width is manufactured less than the moon pool width, can directly basal disc be transferred from the drill ship moon pool, this advantage of transferring the method for basal disc is that holding time is short, resource is few---and do not need to use barge to transport, directly basal disc is placed on the drill ship deck; Also need not be fixed on the moon pool below to basal disc, reduce the danger in the basal disc transportation; The danger of not using barge just not to exist barge and drill ship to collide does not just have original height to the requirement of weather, sea situation yet.
In the mounting method of the present invention, having used special-purpose lifting device carries out the lifting of basal disc and transfers, on the basal disc framework, be fixed with several hangers, be provided with a cutting ferrule device at the plumb line of basal disc and the position of basal disc main body frame roof intersection, this device is connected with the rigidity cylinder cutting ferrule of lifting device, this lifting device also comprises wire rope, the lifting short circuit, the rigidity connecting rod, hanger, shackle etc., use this lifting device can realize lifting and descending being rigidly connected and flexibly connecting of fashionable and basal disc, can guarantee the stationarity in the preceding hoisting process of basal disc entry, and can control the position and the orientation of basal disc easily, make the basal disc accurate positioning and simple easily, guarantee the stability of basal disc in the entry process, balance and safety reduce the influence that is subjected to ocean current when subsea template is located in the seabed.
Description of drawings
Fig. 1 is the structural representation of basal disc of the present invention;
Fig. 2 is that the B of Fig. 1 is to view;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the structural representation of lifting device;
Fig. 5 is the another kind of structural representation of lifting device.
The specific embodiment
As Fig. 1,2, shown in 3, a kind of down-in type marginal oil field underwater drilling basal disc for drilling ship, have 4 well heads, comprise the basal disc main body frame, annex, wherein, the basal disc main body frame is the cuboid support body that fixedly is made of horizontal bars 1 and vertical rod member 6, the basal disc main body frame is provided with vertical wellbore casings 3, its both sides are fixed with a pipe box 5 by support bar 4, between horizontal bars 1, in the rectangular frame that forms between horizontal bars 1 and the vertical rod member 6 inclined support bar is set, vertical wellbore casings 3 is arranged on horizontal bars 1 and surrounds rectangular center, inclined support bar 2 one ends between the described horizontal bars 1 are fixed on two horizontal bars 1 crosspoints, the other end is fixed on the wellbore casings 3, inclined support bar 7 two ends in the rectangular frame that horizontal bars 1 and vertical rod member 6 surround are separately fixed at the top of main body frame, on two horizontal bars 1 in bottom, the horizontal bars 1 at main body frame top is provided with cutting ferrule device 10 with the position that the basal disc plumb line intersects, the main body frame of basal disc is provided with hoisting and locating fixture 11, described cutting ferrule device 10 is column constructions, its underpart is fixed on the horizontal bars 1 at main body frame top of underwater drilling basal disc, the upper surface is provided with a circular counter bore 10-1, described counterbore 10-1 hole wall is provided with at least one J-shaped groove 10-2, and described hoisting and locating fixture is a hanger 11.
With 2 X, 2 specifications is example, Benq's disc manufacturing method:
1) utilize moulding bed to build: the level of member and vertically when guaranteeing that basal disc is built, make a cover moulding bed, have 9 and be placed on the construction place, utilize level gauge to carry out levelling, guarantee that the plane is a horizontal plane on the moulding bed, moulding bed is with 10 " steel pipe and the making of 16mm steel plate; be linked to be integral body with channel-section steel between 9 moulding beds and prevent to topple over; the plane is liftoff 0.8 meter high on the moulding bed, is convenient to the welder and welds the basal disc member down below, and the making of basal disc is all carried out on moulding bed;
2) make: in order to shorten the duration that basal disc is built, two parts were made simultaneously about basal disc divided, the manufacturing that inclined support bar 2 between the horizontal bars 1 comprise top, wellbore casings 3, horizontal bars 1 and the wellbore casings 3 is made on basal disc top be connected, the basal disc bottom make comprise bottom level framework 1, vertically rod member 6, inclined support bar 7 manufacturing be connected, then the basal disc top lifting of making is placed on vertical rod member 6 and the inclined support bar 7 and welds, stake pipe box 5 and support bar 4 thereof then are installed; Weld the cutting ferrule device 10 that is used with lifting device at basal disc plumb line and main body frame top, horizontal rod member 1 crossover location at last, the a plurality of hoisting and locating fixtures 11 of welding on the main body frame of basal disc, described hoisting and locating fixture is a hanger 11, and this construction program has shortened the duration that basal disc is built greatly.
The installation of 2 X, 2 specification basal discs:
Basal disc lifts drill ship from the construction place and adopts tugboat to transport, and utilizes the drill ship crane that basal disc is hung on drill ship from tugboat, and is placed on the deck on moon pool next door; Basal disc is transferred basal disc from moon pool after being transported to well location with drill ship again, lifting, transfer in the process, having used special-purpose lifting device carries out the lifting of basal disc and transfers, on the basal disc framework, be fixed with several hangers 11, be provided with a cutting ferrule device 10 at the plumb line of basal disc and the position of basal disc main body frame roof intersection, this device 10 is connected with the rigidity cylinder cutting ferrule of lifting device, as Fig. 4, shown in 5, this lifting device also comprises wire rope 20, lifting short circuit 22, rigidity connecting rod 24, hanger 26, shackle 21, wherein wire rope 20 links to each other with lifting short circuit 22 by shackle 21, the lower end of lifting short circuit 22 connects rigidity connecting rod 24, the lower end of rigidity connecting rod 24 connects the cutting ferrule device 10 on the basal disc, the hanger 11 that lifting short circuit 22 also connects on the basal disc by wire rope 23; When descending water, wire rope 20 and shackle 21 are changed to drilling rod 27, use this lifting device can realize lifting and descending being rigidly connected and flexibly connecting of fashionable and basal disc, can guarantee the stationarity in the preceding hoisting process of basal disc entry, and can control the position and the orientation of basal disc easily, make basal disc accurate positioning and easily simple to guarantee stability, balance and the safety of basal disc in the entry process, reduce the influence that is subjected to ocean current when subsea template is located in the seabed.
Claims (8)
1, a kind of down-in type marginal oil field underwater drilling basal disc for drilling ship, comprise basal disc main body frame, annex, wherein, the basal disc main body frame is the cuboid support body that fixedly is made of horizontal bars and vertical rod member, the basal disc main body frame is provided with vertical wellbore casings, its both sides are fixed with a pipe box, it is characterized in that, between horizontal bars, in horizontal bars and the rectangular frame that vertically forms between the rod member inclined support bar are set.
2, down-in type marginal oil field underwater drilling basal disc for drilling ship as claimed in claim 1, it is characterized in that, vertical wellbore casings is arranged on horizontal bars and surrounds rectangular center, inclined support bar one end between the described horizontal bars is fixed on the crosspoint of adjacent two horizontal bars, and the other end is fixed on the wellbore casings.
3, down-in type marginal oil field underwater drilling basal disc for drilling ship as claimed in claim 1, it is characterized in that the inclined support bar two ends in the rectangular frame that horizontal bars and vertical rod member surround are separately fixed on main body frame top, two horizontal bars in bottom.
4, as any described down-in type marginal oil field underwater drilling basal disc for drilling ship of claim 1～3, it is characterized in that, the horizontal bars at the main body frame top of intersecting with the basal disc plumb line is provided with the cutting ferrule device, and the main body frame of basal disc is provided with the hoisting and locating fixture.
5, down-in type marginal oil field underwater drilling basal disc for drilling ship as claimed in claim 4 is characterized in that, described hoisting and locating fixture is a hanger, and hanger is arranged on the horizontal bars at main body frame top.
6, down-in type marginal oil field underwater drilling basal disc for drilling ship as claimed in claim 5, it is characterized in that, described cutting ferrule device is a column construction, its underpart is fixed on the horizontal bars at main body frame top, the upper surface is provided with a counterbore, and described counterbore hole wall is provided with at least one J-shaped groove.
7, a kind of manufacturing mounting method of down-in type marginal oil field underwater drilling basal disc for drilling ship is characterized in that, may further comprise the steps:
(1), the manufacturing of basal disc: at first, two parts were made simultaneously about basal disc divided, and then the basal disc top and the bottom of making were welded together; A plurality of hoisting and locating fixtures are welded in last welding and the cutting ferrule device that lifting device is used on the horizontal bars crossover location at basal disc plumb line and main body frame top on the main body frame of basal disc;
(2), the installation of basal disc: use lifting device to be connected on cutting ferrule device and the hanger, in the hoisting process, Rendezvous Point after lifting rope in the lifting device is straightened is positioned on the plumb line of basal disc all the time, keeps basal disc to be in level substantially always and arrives the predetermined area, seabed.
8, the manufacturing mounting method of down-in type marginal oil field underwater drilling basal disc for drilling ship as claimed in claim 7 is characterized in that, may further comprise the steps:
(1), the manufacturing of basal disc: two parts were made simultaneously about basal disc divided, basal disc top is made the manufacturing comprise inclined support bar between horizontal bars, wellbore casings, last horizontal bars and the wellbore casings and is connected, the basal disc bottom make comprise the bottom level rod member, vertically rod member, inclined support bar manufacturing be connected, then the basal disc top lifting of making is placed on vertical rod member and the inclined support bar and welds, stake pipe box and support bar thereof then are installed; Weld the cutting ferrule device that is used with lifting device at basal disc plumb line and main body frame top, horizontal rod member crossover location at last, the a plurality of hoisting and locating fixtures of welding on the main body frame of basal disc, described hoisting and locating fixture is a hanger, and the width of whole basal disc is less than the width of drill ship moon pool;
(2), the installation of basal disc: basal disc is transported to drill ship from building the place lifting, be placed on the deck on moon pool next door, after basal disc is transported to well location with drill ship, use lifting device to be connected on cutting ferrule device and the hanger, basal disc is transferred from the moon pool of drill ship, in the hoisting process, rigidity cylinder cutting ferrule in the lifting device is connected with the cutting ferrule device on the basal disc main body frame, guarantee that the Rendezvous Point after the lifting rope is straightened is positioned on the plumb line of basal disc all the time, keep basal disc to be in level substantially always and arrive predetermined place, seabed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101767453A CN101424177B (en) | 2007-11-02 | 2007-11-02 | Down-in type marginal oil field underwater drilling basal disc for drilling ship and manufacture and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101767453A CN101424177B (en) | 2007-11-02 | 2007-11-02 | Down-in type marginal oil field underwater drilling basal disc for drilling ship and manufacture and installation method |
Publications (2)
| Publication Number | Publication Date |
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| CN101424177A true CN101424177A (en) | 2009-05-06 |
| CN101424177B CN101424177B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101767453A Active CN101424177B (en) | 2007-11-02 | 2007-11-02 | Down-in type marginal oil field underwater drilling basal disc for drilling ship and manufacture and installation method |
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| CN (1) | CN101424177B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080520A (en) * | 2010-12-08 | 2011-06-01 | 中国海洋石油总公司 | Deepwater subsea manifold structure |
| CN103266625A (en) * | 2013-05-31 | 2013-08-28 | 中海石油（中国）有限公司番禺作业公司 | Gravity base structure seabed base disc |
| CN103603632A (en) * | 2013-11-22 | 2014-02-26 | 中国海洋石油总公司 | Underwater basal disc connecting floating production system and subsea pipeline |
| CN105317404A (en) * | 2014-07-21 | 2016-02-10 | 中国海洋石油总公司 | Underwater drilling template base, underwater drilling template and underwater drilling template installation structure |
| CN114084535A (en) * | 2021-12-16 | 2022-02-25 | 中海石油(中国)有限公司 | Underwater flexible storage device and use method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435108A (en) * | 1981-08-11 | 1984-03-06 | Sedco, Inc. | Method of installing sub-sea templates |
| CN2578521Y (en) * | 2002-10-29 | 2003-10-08 | 南海西部石油合众近海建设公司 | Hanging well drilling basic disc of central well |
| CN2777041Y (en) * | 2005-01-18 | 2006-05-03 | 中国石化胜利油田有限公司海洋石油开发公司 | Shallow marine base plate pile-sinking type well-head platform |
| CN201100120Y (en) * | 2007-11-02 | 2008-08-13 | 中国海洋石油总公司 | Drilling well under-ship immersion under-water drilling well base tray for boundary oil gas field |
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2007
- 2007-11-02 CN CN2007101767453A patent/CN101424177B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080520A (en) * | 2010-12-08 | 2011-06-01 | 中国海洋石油总公司 | Deepwater subsea manifold structure |
| CN103266625A (en) * | 2013-05-31 | 2013-08-28 | 中海石油（中国）有限公司番禺作业公司 | Gravity base structure seabed base disc |
| CN103266625B (en) * | 2013-05-31 | 2015-04-22 | 中海石油（中国）有限公司番禺作业公司 | Gravity base structure seabed base disc |
| CN103603632A (en) * | 2013-11-22 | 2014-02-26 | 中国海洋石油总公司 | Underwater basal disc connecting floating production system and subsea pipeline |
| CN105317404A (en) * | 2014-07-21 | 2016-02-10 | 中国海洋石油总公司 | Underwater drilling template base, underwater drilling template and underwater drilling template installation structure |
| CN114084535A (en) * | 2021-12-16 | 2022-02-25 | 中海石油(中国)有限公司 | Underwater flexible storage device and use method |
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| Publication number | Publication date |
|---|---|
| CN101424177B (en) | 2012-10-31 |
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