CN102234999A - Underwater drilling platform - Google Patents
Underwater drilling platform Download PDFInfo
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- CN102234999A CN102234999A CN201110212962XA CN201110212962A CN102234999A CN 102234999 A CN102234999 A CN 102234999A CN 201110212962X A CN201110212962X A CN 201110212962XA CN 201110212962 A CN201110212962 A CN 201110212962A CN 102234999 A CN102234999 A CN 102234999A
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Abstract
The invention discloses an underwater drilling platform which is composed of an above-water replenishment ship and an undersea drilling platform, wherein the undersea drilling platform is fixed on the seabed by four cement columns (length: about 15 m), and an electric regulator for the four cement columns can adjust the platform to a horizontal position; the above-water replenishment ship and the undersea drilling platform are connected by a set of multi-functional pipes and a wire set so as to achieve the effects of matter and energy replenishment and signal transmission; and the undersea drilling platform can be used for completing the overall processes of well drilling, well cementation and well completion, and performing replenishment and monitoring control by the above-water replenishment ship and a driller room. Compared with a semi-submersible drilling platform, the underwater drilling platform disclosed by the invention has the characteristics that the manufacturing cost is greatly reduced, therefore, the underwater drilling platform can be suitable for standardized batch production; the volume is reduced, the degree of automation is high, the drilling efficiency is high, and the drilling depth is 500-3000m; the underwater drilling platform is affected slightly by stormy waves on the sea surface, and is wide in application range; and the replenishment ship can be recycled repeatedly.
Description
Technical field: plant equipment manufacturing
Background technology:
The manufacturing technology of semisubmersible drilling platform is ripe gradually, and along with the progress of modern mechanicalization, semi-automatic and full-automatic mechanical develops rapidly, and the manual intelligent level of mechanized equipment improves constantly.Be the Remote operation, automated job provides reliably and has guaranteed.Tube drawbench is used for coming and going extracting automatically and has 1. improved the automatization level and the operating efficiency of drilling well with the discharging drilling rod between rig floor discharging frame and well head.
Summary of the invention:
With respect to traditional semisubmersible drilling platform, the underwater drilling platform improves in the following areas, to satisfy the needs that it does industry under water.Than semisubmersible drilling platform, the underwater drilling platform, cost reduces far away, automaticity height, better capacity of anti-storm.Because working environment under water is relatively stable, has abandoned with huge build and has come the right stable semisubmersible drilling platform of maintenance.But be fixed on the sea bed in seabed, obtain a metastable working environment.
The present invention is by following 6 technological improvements:
1. underwater drilling platform column comb
Tube drawbench is used for coming and going automatic the extracting and the discharging drilling rod between rig floor discharging frame and well head, be the busiest device during the marine drilling platform drilling rod discharges automatically.The key of marine drilling platform operation automation operation is that all kinds of pipe fittings (comprise drilling rod, drill collar etc., below be referred to as drilling rod) automatic discharging, the drilling rod automatic discharge system can realize that drilling rod is from deck discharging frame to well head, to the reciprocal automation discharging the rig floor discharging frame (pipe setback), tube drawbench is an important component part of drilling rod automatic discharge system, is mainly used in to come and go between rig floor discharging frame and well head in the drilling process to grasp automatically and the discharging drilling rod.Traditional pipe racking mode of operation needs the staff directly to contact with drilling rod, and in the process of making a trip, driller, raised platform around a well driller, rigger want manual close fit, careless slightlyly just may cause the accident.When particularly transferring drill-pipe stand between fingerboard and well head, need rigger on the quadruple board platform directly to connect and tear the handover thribble open, danger is bigger.Therefore in addition, stormy waves is often met in operation at sea, and work under bad environment, safety problem are more outstanding, and drilling cost is very high, accelerates bit speed, shortens drilling period and just seem particularly important.Realize the drilling rod automation mechanized operation in the drilling process, avoid the people to contact with the direct of drilling rod, can accelerate the speed of making a trip, to reducing the Offshore Operation cost, improving operational security will play a significant role.
2. the automatic perforating fixedly staking out supporting leg of mud of turning one's coat
Platform carries 4 supporting legs, treat that the platform dive is to sea bed, the group of motors that four supporting legs carry drives four drill bits and begins downward boring, after getting into certain depth, stop operating, with fixed platform, the cement of making a bet is till returning on the sea bed by cementing under the concrete duct that connects in advance in beginning, and the Position Design of four piles can have any three pillars all can be with the whole platform of stable support.
3. DC-AC electric drive rig
Working machine drives with direct current generator, drives generator powered with diesel engine.Be called directly-dc powered for the direct current person; Being called the AC-to-DC electricity for alternating current through rectification person drives.
4. mud purification pond
The mud purification pond has been moved under water by the sea, therefore will have enough intensity to bear the pressure of water, and the wall thickness that needs to increase its mud pit is realized.Simultaneously, the allotment of mud is to carry out on the water surface, is linked to each other with the mud purification pond by a pipeline, plays additional effect.
5. automatic blowout preventer set
Preventer is to be used for operation process such as formation testing, well workover, completion to cut out well head, prevents that gas blowout accident from taking place, and has characteristics such as simple in structure, easy to operate, withstand voltage height, is the oil field security seal wellhead assembly that prevents blowout commonly used.
During oil drilling, be installed on the well head casing head, be used for controlling the blowout device of hydraulic oil, gas, water.When the OIH atmospheric pressure was very high, preventer can seal well head (closing dead).When in drilling rod, being pressed into weighted mud, under its flashboard four-way is arranged, the replaceable mud that goes out to be subjected to gas cut, the pressure of fluid column in the increase well is to push down the ejection of high-pressure oil gas.
Owing to be operatorless under water, do an improvement to traditional blowout preventer set, increase a hydraulic transmission, make it can automatic in-position when needs are installed.
6. underwater drilling platform and tender material, energy, Info Link passage
Equipment connects: because undersea job platform is the marine control tender that places one's entire reliance upon, so, its connection device is of crucial importance, wherein, be to finish, and connect that the megohmite insulant by the centre separates at last by different equipment by different a series of pipelines, make it be independent of each other, be referred to as supply control connection line.Least significant end and sea down drilling equipment link to each other, above with control tender and link to each other.
Its circuit can be divided into,
1. lubricating oil replenishing line, electric wire; Be make-up oil between each bearing
2. slurry supply line, pipeline; The composition of control mud,
3. energy supply line, electric wire; The 550V AC power provides energy for extra large equipment down,
4. cement supply line, electric wire; For well cementation, during completion, provide cement, fixing well bore,
5 sensor connecting lines, electric wire; Connect various sensors, the normal high-speed cruising of control appliance, the control rate of penetration,
7.CCTV system core equipment is cctv network multimedia video server, the vision signal of camera is directly by the network multimedia video server.For reliable data are provided to driller house, each control point can need be with selecting different video cameras according to reality, and the model of camera can be according to the position and the function selecting of concrete control point.System supports the storage of Video Document.
Because ground, sea drilling equipment, cost is high, becomes the constraint factor of China and world ocean oil development always.As No. 981, offshore oil, cost nearly 6,000,000,000
Nearly 23,000,000,000 tons of the petroleum reserves of South China Sea, Bohai Bay Oil, oil field dawn in spring in the East Sea.And oil field, the North Sea, and the oil and gas reserves that exploration crew finds in the zone of the open sea outside the China sea, have huge economic benefit as the oil gas in the middle part of near the oil field the South Pole, the arctic and the Pacific Ocean is surprising especially, and social benefit.Also be that the active principle of safeguarding national interests guarantees.
The underwater drilling platform is by the three-dimensional implement that sea control replenishment device is formed and seabed operation combines, and total cost is controlled at about 3,800 ten thousand yuans, and marine operation ship is only with recycling.Implement can be the same with traditional offshore work platform down in the sea, can realize a plurality of well bores of platform, economizes on resources, and makes full use of equipment.After forming mass production, cost of production can further reduce.The scope of application of underwater drilling platform will significantly improve, and can be divided into three ranks as required,
1. more shallow marine site is below 500 meters, the marine site,
2. the dark marine site of moderate, 500-2000 rice
3. territory, super deep-sea, the degree of depth more than 2000 meters,
Because what adopt is full-automatic and semiautomatic control, so its depth capacity can reach 3000 meters dark marine sites.
The completion engineering, treat that drilling well is finished after owing to there not be fixing offshore boring island, so its exploitation, and later manufacturing process all need carry out on the production ship more than the sea level, carries out the purification of crude oil, and transports.Think that offshore boring island can be beaten many wells under the sea.So a production ship also can be produced several mouthfuls of wells simultaneously.The completion engineering be by; A senior pipeline that connects on the offshore boring island, the well-flushing of all later on, technologies such as pressure break can be finished by this pipeline.
The main yardstick of underwater drilling platform:
Type is long: 36m
Molded breadth: 27m
Moldeed depth: 9m
Long 15m is taken off in stake
Design work depth of water 3000m
Upper strata working platform: the long 30m of type
Molded breadth 24m
Drilling derrick: 42m
Max. hook load 4500kn
Displacement 2767t
Platform deadweight 3484t
Working environment :-20-40 ℃
Water temperature environment :-2-3 ℃
The platform cost is about: 3,800 ten thousand yuan
Equipment connects: because undersea to do the industry platform be the marine control tender that places one's entire reliance upon, so its connection device is of crucial importance.Lubricating oil replenishing line, slurry supply line, energy supply line, cement supply line, sensor connecting line are arranged.They are finished by different a series of pipelines, and are connected by different equipment, and the megohmite insulant by the centre separates at last, makes it be independent of each other, and is referred to as supply control connection line.Least significant end and sea down drilling equipment link to each other, above with control tender and link to each other.
Its circuit can be divided into,
1. lubricating oil replenishing line, electric wire; Be make-up oil between each bearing
2. slurry supply line, pipeline; The composition of control mud,
3. energy supply line, electric wire; The 550V AC power provides energy for extra large equipment down,
4. cement supply line, electric wire; For well cementation, during completion, provide cement, fixing well bore,
5 sensor connecting lines, electric wire; Connect various sensors, the normal high-speed cruising of control appliance, the control rate of penetration,
The turbine aspect is on tender.Comprise diesel generating set, and accessory system.Dynamical system adopts 3 generating sets, and the car operational mode, every capacity 5400kw, 11000v, 60hz, 720r/min 0.8pf
On the tender, adopt 1 100t to assist hook 20t, 50m is long-armed, comprises cement system, instrument and driller house on 360 ° of revolving crane supply control ships.Well-control equipment, logging equipment.
The core of well system is a boring tower, has all drilling well functions, comprising:
1. steel structure derrick
2. winch
3. overhead traveling crane
4. tourist bus
5. top driving device,
6. mud straight tube
7. cement straight tube
8. fluid pressure line
Description of drawings:
As shown in drawings, the underwater drilling platform is mainly by the two large divisions, water surface tender and underwater drilling platform.Connect by a pipeline electric wire group between them.Also have the tower crane on the tender to provide drilling rod and drill bit for offshore boring island.Because undersea job platform is the marine control tender that places one's entire reliance upon, so, its connection device is of crucial importance, wherein, be to finish, and connect that the megohmite insulant by the centre separates at last by different equipment by different a series of pipelines, make it be independent of each other, be referred to as supply control connection line.Least significant end and sea down drilling equipment link to each other, above with control tender and link to each other.
Its circuit can be divided into,
1. lubricating oil replenishing line, electric wire; Be make-up oil between each bearing
2. slurry supply line, pipeline; The composition of control mud,
3. energy supply line, electric wire; The 550V AC power provides energy for extra large equipment down,
4. cement supply line, electric wire; For well cementation, during completion, provide cement, fixing well bore,
5 sensor connecting lines, electric wire; Connect various sensors, the normal high-speed cruising of control appliance, control rate of penetration.
The required various matter and energies of drilling well are arranged on the tender.The driller house of control underwater drilling platform is arranged, goods and materials storage area, employee living area are arranged, gen-set district, mud replenishing basin, cement system district etc.
The underwater drilling platform has the required plant equipment of drilling well, and platform is supported by four cement piles.The underwater drilling platform is divided into two-layer up and down.Underwater drilling platform lower floor have carry that a water tank, drilling well water tank, mud cabin, pump room, mud purification pond, preventer, preventer capablely hang, two cover motor unit, fluid pressure motor, hydraulic transmission etc.
The underwater drilling platform topsides is being arranged almost all drilling machinery equipment.The center on underwater drilling platform topsides deck is designed to the wide 6m of the long 18m of drilling well moon pool.Boring tower is installed on the moon pool.Workspace around boring tower is referred to as drilling area, comprises drilling rod, sleeve pipe, RISER pipe box storage area.Column tube drawbench workspace.
The specific embodiment:
Drilling well power top is from two hydraulic pressure top driving devices, and bottom power is from the rotation platform of main deck installation.Platform both can turn clockwise, and also can be rotated counterclockwise, and rotation platform is by two hydraulic pump drive, every moment of torsion 30kn/m rotating speed 0-20r/min
The well system workflow: system at first adopts the 36in drill bit, when drilling depth about 150f-400f, system's drill bit withdraws from, system puts down the 30in sleeve pipe, after sleeve pipe puts in place, start cement system sleeve pipe is fixed, system uses the 26in drill bit instead, when bit depth about 500f-1500f, system withdraws from drill bit, mobile well blowout preventing device, and link to each other with RISER pipe, the 20in sleeve pipe is put in system, sleeve pipe puts in place, starts cement system, and sleeve pipe is fixed, system side descends and BOP (preventer) is installed RISER pipe compression device is installed subsequently, and system adopts the 17in drill bit.Desired depth to be got into stops drilling well, and transfer production tree is installed, and respective line, the beginning oil producing operation.
The installation and removal drilling rod adopts novel column automatic tube-arranging machine.
Be drilling rod insulating sea water system:
Pipeline operating system mainly is vertical duct, horizontal pipeline and RISER pipeline,
Pipeline operating system mainly contains three kinds:
1 well casing
2. sleeve pipe
3.RISER pipe (on connect platform, is connected with sleeve pipe down by BOP, sleeve pipe and RISER pipe supply the composition closed area to make drilling rod isolate seawater)
Automatic operating system is adopted in the operation of offshore boring island pipe-line system fully, with machinery replacement people's both hands, with the action of sequence controlled machine.The realization operation area is unmanned.
1. vertical row guard system, the disconnecting of drilling rod.
2. rat hole, the hydraulic power slips
3. antimagnetic welding system
4.CCTV system
5. drilling well view system etc.,
6. mud circulating system, cooling and lubricating drill bit, cleaning landwaste.
Cement system has two driving diesel engines, stirs cabinet, and pipeline cuts down part and instrument is formed, instrument and driller house, monitoring, and operating desk.All drilling muds, RISER pipe and all detection information etc. can both be by instrument and LCDs monitoring.All operations can be with operating with manual two kinds of patterns automatically.
Well-control equipment comprises a whole set of blowout control equipment of BOP.
Logging equipment has two cover combustion towers, and the length of tower is 84ft band combustion head.Interior pipe and correlation control unit.Combustion tower links together by hinge and Platform Deck, puts at stern respectively
List of references:
1. Cui Xue political affairs, Liu Wenqing, Xiao Wensheng, Zhang Fuqiang, Dong Lei marine drilling platform column tube drawbench design (China Petroleum Univ.'s Electrical and Mechanical Engineering College, Shandong Dongying 257061)
2. Yao Chun east oil drilling and r eoovery machine petroleum industry publishing house.
3. Li Run training, Wang Zhijun: publishing house of ocean platform strength analysis [M] Shanghai Communications University.
Claims (9)
1. the underwater drilling platform is to belong to plant equipment to make the field.It is characterized in that forming jointly by underwater drilling platform and tender waterborne.Than semisubmersible drilling platform, the working depth of underwater drilling platform is identical, but cost reduces far away, and the automaticity height because working environment under water is relatively stable, has better capacity of anti-storm.Semisubmersible drilling platform is to come the right stable drilling environment of maintenance with huge build.But be fixed on the sea bed in seabed, obtain a metastable working environment.
2. the underwater drilling platform is to carry 4 supporting legs by platform, treat that the platform dive is to sea bed, the group of motors that four supporting legs carry drives four drill bits and begins downward boring, after getting into certain depth, stop operating, with fixed platform, the cement of making a bet is till returning on the sea bed by cementing under the concrete duct that connects in advance in beginning, and the Position Design of four piles can have any three pillars all can be with the whole platform of stable support.
3. the mud purification pond has been moved under water by the sea, therefore will have enough intensity to bear the pressure of water, and the wall thickness that needs to increase its mud pit is realized.Simultaneously, the allotment of mud is to carry out on the water surface, is linked to each other with the mud purification pond by a pipeline, plays additional effect.
4. preventer is to be used for operation process such as formation testing, well workover, completion to cut out well head, prevents that gas blowout accident from taking place, and has characteristics such as simple in structure, easy to operate, withstand voltage height, is the oil field security seal wellhead assembly that prevents blowout commonly used.
Owing to be operatorless under water, do an improvement to traditional blowout preventer set, increase a hydraulic transmission, make it can automatic in-position when needs are installed.
5. the required various matter and energies of drilling well are arranged on the tender.The driller house of control underwater drilling platform is arranged, goods and materials storage area, employee living area are arranged, gen-set district, mud replenishing basin, cement system district etc.
6. the underwater drilling platform topsides is being arranged almost all drilling machinery equipment.The center on underwater drilling platform topsides deck is designed to the wide 6m of the long 18m of drilling well moon pool.Boring tower is installed on the moon pool.Workspace around boring tower is referred to as drilling area, comprises drilling rod, sleeve pipe, RISER pipe box storage area.Column tube drawbench workspace.
7. equipment connects: because undersea to do the industry platform be the marine control tender that places one's entire reliance upon, so its connection device is of crucial importance.Lubricating oil replenishing line, slurry supply line, energy supply line, cement supply line, sensor connecting line are arranged.They are finished by different a series of pipelines, and are connected by different equipment, and the megohmite insulant by the centre separates at last, makes it be independent of each other, and is referred to as supply control connection line.Least significant end and sea down drilling equipment link to each other, above with control tender and link to each other.
8.CCTV system core equipment is cctv network multimedia video server, the vision signal of camera is directly by the network multimedia video server.For the control of giving driller house provides reliable foundation, each control point can need be with selecting different video cameras according to reality, and the model of camera can be according to the position and the function selecting of concrete control point.System supports the storage of Video Document.
9. tube drawbench is used for coming and going automatic the extracting and the discharging drilling rod between rig floor discharging frame and well head, is the busiest device during the marine drilling platform drilling rod discharges automatically.The key of marine drilling platform operation automation operation is that all kinds of pipe fittings (comprise drilling rod, drill collar etc., below be referred to as drilling rod) automatic discharging, the drilling rod automatic discharge system can realize that drilling rod is from deck discharging frame to well head, to the reciprocal automation discharging the rig floor discharging frame (pipe setback), tube drawbench is an important component part of drilling rod automatic discharge system, is mainly used in to come and go between rig floor discharging frame and well head in the drilling process to grasp automatically and the discharging drilling rod.Realize the drilling rod automation mechanized operation in the drilling process, avoid the people to contact with the direct of drilling rod, can accelerate the speed of making a trip, to reducing the Offshore Operation cost, improving operational security will play a significant role.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212962XA CN102234999A (en) | 2011-07-26 | 2011-07-26 | Underwater drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212962XA CN102234999A (en) | 2011-07-26 | 2011-07-26 | Underwater drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102234999A true CN102234999A (en) | 2011-11-09 |
Family
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Family Applications (1)
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|---|---|---|---|
| CN201110212962XA Pending CN102234999A (en) | 2011-07-26 | 2011-07-26 | Underwater drilling platform |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351590A (en) * | 2016-09-30 | 2017-01-25 | 宁波介量机器人技术有限公司 | Drilling robot support for deep sea sampling |
| CN106414893A (en) * | 2014-02-18 | 2017-02-15 | 新钻机公司 | Well head stabilizing device and method |
| CN110462159A (en) * | 2017-01-24 | 2019-11-15 | 恩斯科国际公司 | Seam tracking system |
| CN110578486A (en) * | 2018-06-11 | 2019-12-17 | 广州海洋地质调查局 | Drilling coring device and method thereof, and offshore floating platform |
| CN111373117A (en) * | 2017-10-26 | 2020-07-03 | 艾奎诺能源公司 | Wellhead assembly installation |
| CN112227330A (en) * | 2020-09-18 | 2021-01-15 | 海洋石油工程股份有限公司 | Method for establishing silo type seabed platform |
| CN113236193A (en) * | 2021-03-31 | 2021-08-10 | 中国石油大学(北京) | Marine hydrate underwater drilling system and method |
-
2011
- 2011-07-26 CN CN201110212962XA patent/CN102234999A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414893A (en) * | 2014-02-18 | 2017-02-15 | 新钻机公司 | Well head stabilizing device and method |
| US10151166B2 (en) | 2014-02-18 | 2018-12-11 | Neodrill As | Well head stabilizing device and method |
| CN106414893B (en) * | 2014-02-18 | 2019-11-22 | 新钻机公司 | Well head stabilising arrangement and method |
| CN106351590A (en) * | 2016-09-30 | 2017-01-25 | 宁波介量机器人技术有限公司 | Drilling robot support for deep sea sampling |
| CN110462159A (en) * | 2017-01-24 | 2019-11-15 | 恩斯科国际公司 | Seam tracking system |
| CN110462159B (en) * | 2017-01-24 | 2022-05-13 | 恩斯科国际公司 | Joint identification system |
| CN111373117A (en) * | 2017-10-26 | 2020-07-03 | 艾奎诺能源公司 | Wellhead assembly installation |
| CN110578486A (en) * | 2018-06-11 | 2019-12-17 | 广州海洋地质调查局 | Drilling coring device and method thereof, and offshore floating platform |
| CN112227330A (en) * | 2020-09-18 | 2021-01-15 | 海洋石油工程股份有限公司 | Method for establishing silo type seabed platform |
| CN113236193A (en) * | 2021-03-31 | 2021-08-10 | 中国石油大学(北京) | Marine hydrate underwater drilling system and method |
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Application publication date: 20111109 |