CN108505941B - A kind of offshore wind farm drill hole of drilling machine construction technology - Google Patents

A kind of offshore wind farm drill hole of drilling machine construction technology Download PDF

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Publication number
CN108505941B
CN108505941B CN201810186254.5A CN201810186254A CN108505941B CN 108505941 B CN108505941 B CN 108505941B CN 201810186254 A CN201810186254 A CN 201810186254A CN 108505941 B CN108505941 B CN 108505941B
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China
Prior art keywords
drilling
drilling machine
drill bit
guider
drill
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CN201810186254.5A
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Chinese (zh)
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CN108505941A (en
Inventor
张海生
陈强
曹春潼
刘旦
王徽华
廖卫勇
冯小星
王海波
梅卫东
袁司
高建忠
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JIANGSU LONGYUAN ZHENHUA MARINE ENGINEERING CO LTD
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JIANGSU LONGYUAN ZHENHUA MARINE ENGINEERING CO LTD
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/12Underwater drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065Separating solids from drilling fluids

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses a kind of offshore wind farm drill hole of drilling machine construction technology, include the following steps: A, assembling drilling machine and debug, and transports to steady stake table top;B, drilling system is lifted to drilling machine over-assemble using 800T crane and is put into steady stake platform;C, it is connected to the hydraulic circuit of drill bit of drilling machine and guider, operate hydraulic valve makes drill bit and guider extend to designated diameter by oil cylinder;D, the hydraulic circuit of drill bit and guider is cut off, drilling tool size is locked, drills later, the bore process that the present invention uses is simple, and drilling efficiency is high, and highly-safe.

Description

A kind of offshore wind farm drill hole of drilling machine construction technology
Technical field
The present invention relates to drill hole of drilling machine technical field, specially a kind of offshore wind farm drill hole of drilling machine construction technology.
Background technique
Drilling machine is widely used in mine locating, railway, highway, bridge, water conservancy and hydropower, tunnel, well, anchor pole, small-bore diamond The probing of rock core wire line coring, work China Democratic National Construction Association, engineer geological prospecting, ground source heat drilling, coal bed gas probing, the drilling of rigs against outburst etc.. Drilling machine can classification by use, as rock-core borer, oil-well rig, survey for the purpose of locating hydrogeological resources and water drilling rig, engineering geologic investigation bore Machine, underground drill rig and engineering construction drilling machine etc..Drilling machine can be divided into four classes: impact drill by drilling method, and be divided into steel wire Rope two kinds of impact type, drill steel hits formula drilling machines.Rotary drill, and it is divided into following three: vertical shaft type -- hand handle is fed formula, spiral shell Revolve differential feed formula, hydraulic cylinder feed churn;Rotating disc type -- steel cable adds and subtracts pressure type, hydraulic cylinder adds and subtracts pressure type drilling machine;It moves back to Turn device formula -- all-hydraulic power head formula, mechanical power head churn.Vibrodrill.Combinationdrill: vibrate, impact, turn round, The drilling machine that the functions such as static pressure are combined with each other in a manner of various combination.Currently, marine wind electric field drill hole of drilling machine complex process, drilling Low efficiency, and security performance is low.
Summary of the invention
The purpose of the present invention is to provide a kind of offshore wind farm drill hole of drilling machine construction technologies, to solve in above-mentioned background technique The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of offshore wind farm drill hole of drilling machine construction technology, packet Include following steps:
A, assemble and drilling machine and debug, ancillary equipment is overhauled in harbour, prepare enough material accessory, by drilling machine and ancillary equipment and Material is transported to construction site, and every bench drill machine is equipped with two drill bits, and one is used to construct, another maintenance is spare;Drill bit, Stabilizer is assembled in harbour, carries out whole Transporting using ship, and transport to steady stake table top, and will with Special Locking device Drilling machine and steady stake platform are fixed and the test-run a machine that is powered;
B, drilling system is lifted to drilling machine using 800T crane, and assembles and is put into steady stake platform;
C, it is connected to the hydraulic circuit of drill bit of drilling machine and guider, operation hydraulic valve extends drill bit and guider by oil cylinder To designated diameter;
D, the hydraulic circuit of drill bit and guider is cut off, drilling tool size is locked, drills later;
E, continue to transfer drill bit to sea bed face and prepare to drill;
F, it switches on the pump into steel sleeve and moisturizing and to keep head height;
G, starting air compressor machine calm the anger reacting cycle hole flushing drilling, coating creep into directly to marine discharge, rate of water make-up should be kept Greater than discharge amount, so that it is guaranteed that head height in steel sleeve;
H, drilling depth removes boring mud by using vibrating screen after coating instead, and seawater recycles, and reduces rate of water make-up, reduces Energy consumption;
I, boring procedure should constantly adjust drilling parameter according to rate of penetration, it is ensured that hard rock section rate of penetration 100~ Between 200mm/h;
J, it pulls out of hole in time after drilling to designed elevation, hydraulic oil should be connected in time before through diameter 5m steel sleeve reducer Road bounces back drill bit and guider to minimum dimension;The plasma discharge amount of drilling machine and the rate of water make-up of water pump will keep balancing, and prevent steel-pipe pile The interior water surface is too low;
K, after the completion of drilling construction, drilling machine is removed into lifting to ship board origin-location and is bound secured.
Preferably, drilling system includes drill bit, guider, transit joint, support tube in the step B.
Compared with prior art, the beneficial effects of the present invention are: the bore process that uses of the present invention is simple, drilling efficiency Height, and it is highly-safe;In the present invention, 800T crane is hung into always drilling machine ontology in boring procedure, not exclusively pine hook, when When " bust " occurs, drilling machine weight can be made to be not loaded on foundation pile, the risk of " bust " is effectively reduced;Using upper bore Diameter is smaller, expands bore diameter after entering mud again when reaching certain;Keep foundation pile bottom root face larger, thus to a certain extent Prevent " bust " risk.
Detailed description of the invention
Fig. 1 is present invention drilling schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of offshore wind farm drill hole of drilling machine construction technology, including such as Lower step:
A, assemble and drilling machine and debug, ancillary equipment is overhauled in harbour, prepare enough material accessory, by drilling machine and ancillary equipment and Material is transported to construction site, and every bench drill machine is equipped with two drill bits, and one is used to construct, another maintenance is spare;Drill bit, Stabilizer is assembled in harbour, carries out whole Transporting using ship, and transport to steady stake table top, and will with Special Locking device Drilling machine and steady stake platform are fixed and the test-run a machine that is powered;
B, drilling system is lifted to drilling machine using 800T crane, and assembles and is put into steady stake platform;
C, it is connected to the hydraulic circuit of drill bit of drilling machine and guider, operation hydraulic valve extends drill bit and guider by oil cylinder To designated diameter;
D, the hydraulic circuit of drill bit and guider is cut off, drilling tool size is locked, drills later;
E, continue to transfer drill bit to sea bed face and prepare to drill;
F, it switches on the pump into steel sleeve and moisturizing and to keep head height;
G, starting air compressor machine calm the anger reacting cycle hole flushing drilling, coating creep into directly to marine discharge, rate of water make-up should be kept Greater than discharge amount, so that it is guaranteed that head height in steel sleeve;
H, drilling depth removes boring mud by using vibrating screen after coating instead, and seawater recycles, and reduces rate of water make-up, reduces Energy consumption;
I, boring procedure should constantly adjust drilling parameter according to rate of penetration, it is ensured that hard rock section rate of penetration 100~ Between 200mm/h;
J, it pulls out of hole in time after drilling to designed elevation, hydraulic oil should be connected in time before through diameter 5m steel sleeve reducer Road bounces back drill bit and guider to minimum dimension;The plasma discharge amount of drilling machine and the rate of water make-up of water pump will keep balancing, and prevent steel-pipe pile The interior water surface is too low;
K, after the completion of drilling construction, drilling machine is removed into lifting to ship board origin-location and is bound secured.
Wherein, drilling system includes drill bit 1, guider 2, transit joint 3, support tube 4 in step B.
In the present invention, if distance is larger between foundation pile bottom and stable scar when drilling, caving ground is sudden and violent in hole When revealing more, directlying adopt seawater drilling would tend to occur collapse hole, influence construction safety, therefore need to be using mud circulation drilling.
In the present invention, 800T crane is hung into always drilling machine ontology in boring procedure, not exclusively pine hook, works as generation When " bust ", drilling machine weight can be made to be not loaded on foundation pile, the risk of " bust " is effectively reduced;Using upper bore diameter It is smaller, expand bore diameter after entering mud again when reaching certain;Keep foundation pile bottom root face larger, to prevent to a certain extent " bust " risk.
The bore process that the present invention uses is simple, and drilling efficiency is high, and highly-safe.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (2)

1. a kind of offshore wind farm drill hole of drilling machine construction technology, characterized by the following steps:
A, it assembles drilling machine and debugs, ancillary equipment is overhauled in harbour, material accessory is prepared enough, by drilling machine and ancillary equipment and material It is transported to construction site, every bench drill machine is equipped with two drill bits, and one is used to construct, another maintenance is spare;Drill bit, stabilization Device is assembled in harbour, carries out whole Transporting using ship, and transport to steady stake table top, and with Special Locking device by drilling machine It is fixed with steady stake platform and the test-run a machine that is powered;
B, drilling system is lifted to drilling machine using 800T crane, and assembles and is put into steady stake platform;
C, it is connected to the hydraulic circuit of drill bit of drilling machine and guider, operate hydraulic valve makes drill bit and guider extend to finger by oil cylinder Determine diameter;
D, the hydraulic circuit of drill bit and guider is cut off, drilling tool size is locked, drills later;
E, continue to transfer drill bit to sea bed face and prepare to drill;
F, it switches on the pump into steel sleeve and moisturizing and to keep head height;
G, starting air compressor machine calm the anger reacting cycle hole flushing drilling, coating creep into directly to marine discharge, rate of water make-up should be kept to be greater than Discharge amount, so that it is guaranteed that head height in steel sleeve;
H, drilling depth removes boring mud by using vibrating screen after coating instead, and seawater recycles, and reduces rate of water make-up, reduces energy Consumption;
I, boring procedure should constantly adjust drilling parameter according to rate of penetration, it is ensured that hard rock section rate of penetration is in 100~200mm/h Between;
J, it pulls out of hole in time after drilling to designed elevation, hydraulic circuit should be connected in time before through diameter 5m steel sleeve reducer and returned Contracting drill bit and guider are to minimum dimension;The plasma discharge amount of drilling machine and the rate of water make-up of water pump will keep balancing, and prevent in steel-pipe pile The water surface is too low;
K, after the completion of drilling construction, drilling machine is removed into lifting to ship board origin-location and is bound secured.
2. a kind of offshore wind farm drill hole of drilling machine construction technology according to claim 1, it is characterised in that: in the step B Drilling system includes drill bit, guider, transit joint, support tube.
CN201810186254.5A 2018-03-07 2018-03-07 A kind of offshore wind farm drill hole of drilling machine construction technology Active CN108505941B (en)

Priority Applications (1)

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CN201810186254.5A CN108505941B (en) 2018-03-07 2018-03-07 A kind of offshore wind farm drill hole of drilling machine construction technology

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Application Number Priority Date Filing Date Title
CN201810186254.5A CN108505941B (en) 2018-03-07 2018-03-07 A kind of offshore wind farm drill hole of drilling machine construction technology

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CN108505941B true CN108505941B (en) 2019-08-13

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CN111364501A (en) * 2020-03-28 2020-07-03 江苏龙源振华海洋工程有限公司 Offshore booster station jacket leveling construction process

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CN103898909B (en) * 2014-03-10 2016-01-27 中交一航局第三工程有限公司 Naked petrographic province steel trestle pile foundation ring cutting method plants a technique
CN204370469U (en) * 2014-12-24 2015-06-03 广州华申建设工程管理有限公司 A kind of drilled pile long leg jacket offshore wind turbine foundation
CN105862905B (en) * 2016-05-27 2018-06-22 福建省新能海上风电研发中心有限公司 A kind of embedding rock single-pile foundation of offshore wind farm and its construction method
CN205917724U (en) * 2016-06-28 2017-02-01 江苏海上龙源风力发电有限公司 Do not have marine fan of grout and inlay rock single pile basis
CN106120839B (en) * 2016-07-12 2018-03-27 中交第三航务工程局有限公司 A kind of construction technology of off-lying sea blower foundation embedded rock pile
CN106759432A (en) * 2016-11-24 2017-05-31 福建永强岩土股份有限公司 A kind of construction method of offshore wind farm super-large diameter piling bar

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