EP3690182B1 - Sediment core-boring drilling process suitable for submarine rope core-boring drill - Google Patents

Sediment core-boring drilling process suitable for submarine rope core-boring drill Download PDF

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Publication number
EP3690182B1
EP3690182B1 EP19849850.3A EP19849850A EP3690182B1 EP 3690182 B1 EP3690182 B1 EP 3690182B1 EP 19849850 A EP19849850 A EP 19849850A EP 3690182 B1 EP3690182 B1 EP 3690182B1
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EP
European Patent Office
Prior art keywords
drilling
drill pipe
drill
outer tube
power head
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.)
Active
Application number
EP19849850.3A
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German (de)
English (en)
French (fr)
Other versions
EP3690182A4 (en
EP3690182A1 (en
Inventor
Buyan WAN
Yongping JIN
Xiaojun Huang
Jialiang Wang
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.)
Hunan University of Science and Technology
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Hunan University of Science and Technology
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Publication date
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Publication of EP3690182A1 publication Critical patent/EP3690182A1/en
Publication of EP3690182A4 publication Critical patent/EP3690182A4/en
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Publication of EP3690182B1 publication Critical patent/EP3690182B1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being specially adapted for operation under water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed

Definitions

  • the application relates to a sediment core-drilling process for a submarine wire-line coring drill rig.
  • a submarine wire-line coring drill rig is always required in marine geological research, mineral resource exploration and subsea engineering survey.
  • the submarine wire-line coring drill rig refers to a type of large-scale drill rig that a rig body is lowered to the seafloor from a mother ship through armoured umbilical cables, and the submarine wire-line core-drilling is performed through remote control of an operator on the deck.
  • the submarine wire-line coring drill rig Compared to conventional land rigs or large offshore drillship rigs, the submarine wire-line coring drill rig has the advantages of low power consumption, high mobility, good coring quality and high-efficient operation.
  • the submarine wire-line coring drill rig differs from the conventional land rigs or the large offshore drillship rigs in the wire-line coring process, including:
  • the standard drilling procedures of the conventional land rigs or the large offshore drillship rigs fail to match the operating conditions of the submarine wire-line coring drill rig.
  • An improved core-drilling process is required to match the unique features and the operating conditions of the submarine wire-line coring drill rig.
  • this invention provides a sediment core-drilling process for a submarine wire-line coring drill rig, which has advantages of low disturbance and high efficiency in coring, and is suitable for remote operation.
  • a sediment core-drilling process for a submarine wire-line coring drill rig comprising:
  • step (2) of the sediment core-drilling process the drilling is performed in the pressure-suction mode at a drilling speed of 20 ⁇ 2 mm/s.
  • step (3) of the sediment core-drilling process the drilling power head starts to rotate when a propulsive force of the drilling power head achieves 60-80% of its own maximum propulsive force, or is 3-4 tons; and the drilling power head rotates at a rotational speed of 30-150 r/min and performs the drilling at a drilling speed of 20 ⁇ 2 mm/s.
  • step (5) of the sediment core-drilling process the winch lowers the extractor at a lowering speed of 18-25 m/min; and the winch and the extractor are lifted to raise the inner tube at an ascending speed of 30-40 m/min.
  • step (6) of the sediment core-drilling process the outer tube drilling tool cleans the bottom of the drilled hole at a speed of 20-25 m/min; and the pump functions for 1-2 min at a pump flow rate of 50-80 L/min.
  • step (7) of the sediment core-drilling process the punching is performed for 2-3 times when a drilling depth is less than 10 m, 3-4 times when the drilling depth is 10-30 m, or more than 5 times when the drilling depth is more than 30 m; and a pump flow rate of the pump is 50-80 L/min during a downwards punching, and 100-150 L/min during an upwards punching;
  • step (10) of the sediment core-drilling process the punching is performed for 1-2 times when the drilling depth is less than 10 m, 2-3 times when the drilling depth is 10-30 m, or 4 times when the drilling depth is more than 30 m; the pump flow rate of the pump 1 is 100-150 L/min during the downwards punching and the upwards punching;
  • step (3) of the sediment core-drilling process after the drilling power head starts to rotate, if a propulsion force of the drilling power head is reduced to less than 2 tons, or less than 40% of its own maximum propulsive force, the drilling power head stops rotating, at this point, the drilling switches back to the pressure-suction mode in step (2).
  • this invention has the following beneficial effects.
  • a coring apparatus in the invention includes a drill rig, a plurality of drill pipes 14, a plurality of inner tubes 16 and an outer tube drilling tool 15.
  • the drill pipes, the inner tubes, the drill rig and the outer tube drilling tool are suitable for submarine wire-line coring.
  • the drill rig is provided with a pump 1, a seawater suction cylinder 5, and a reversing valve 2.
  • the pump 1 is specifically a high pressure seawater washing pump.
  • a water outlet of the pump 1 and an inlet of a rodless cavity of the seawater suction cylinder 5 are communicated with an inner hole of an active drill pipe 13 on a drilling power head 11 of the drill rig via the reversing valve 2.
  • An inner hole of a drill pipe 14 is communicated with the water outlet of the pump 1 or the inlet of the rodless cavity of the seawater suction cylinder 5 through the switch of the reversing valve 2 as needed.
  • a rod cavity of the seawater suction cylinder 5 is communicated with external seawater.
  • a top end of a first piston rod 51 of the seawater suction cylinder is connected to a top end of a second piston rod 41 of a propulsion cylinder of the drill rig via hinges, so that the seawater suction cylinder 5 and the propulsion cylinder 4 of the drill rig move synchronously.
  • An upper part of an inner tube 16 is provided with a bearing combination 161 which prevents a rotational motion of the outer tube drilling tool 15 from being transmitted to the inner tube 16.
  • a thin-walled annular cutting blade 162 is provided at a bottom of the inner tube 16.
  • the inner tube 16 and the outer tube drilling tool 15 are matched in a way that a front part of the inner tube 16 outwardly protrudes from a center hole of a drill bit of the outer tube drilling tool 15 for a distance, and the distance is generally between 100-500 mm, and the inner tube 16 and the center hole of the drill bit of the outer tube drilling tool 15 are arranged with clearance.
  • the propulsion cylinder 4, the seawater suction cylinder 5 and a slide rail frame 3 are provided on a base 6.
  • a vertical slide rail is provided on one side of the slide rail frame 3.
  • the drilling power head 11 is provided on the vertical slide rail and able to move along the vertical slide rail.
  • a plurality of leveling feet 7 are provided at a bottom of the base 6.
  • a first pulley and a second pulley are provided at an upper end of the second piston rod 41, and the first pulley is arranged above the second pulley.
  • a top and a bottom of the slide rail frame 3 are respectively provided with upper pulleys and lower pulleys.
  • An end of an upper steel wire rope of the slide rail frame 3 is fixedly connected to the top of the slide rail frame 3. The other end of the upper steel wire rope sequentially wraps around the first pulley at the upper end of the second piston rod 41 and the upper pulleys at the top of the slide rail frame 3 and then is connected to the drilling power head 11.
  • An end of a lower steel wire rope of the slide rail frame 3 is fixedly connected to the bottom of the slide rail frame 3.
  • the other end of the lower steel wire rope of the slide rail frame 3 sequentially wraps around the second pulley at the upper end of the second piston rod 41 and the lower pulleys at the bottom of the slide rail frame 3 and then is connected to the drilling power head 11.
  • the drilling power head 11 is provided with the active drill pipe 13 which can be connected to an upper end of the drill pipe 14 or an upper end of the outer tube drilling tool 15 via screw threads.
  • a lower end of the drill pipe 14 can be connected to the upper end of the outer tube drilling tool 15 via screw threads.
  • the drilling power head 11 is provided with a hole which is communicated to the active drill pipe 13.
  • An extractor 12 is provided inside the active drill pipe 13.
  • An end of a steel wire rope of a winch 10 is connected to the extractor 12, and the other end of the steel wire rope of the winch 10 is connected to the winch 10 through the hole of the drilling power head 11.
  • a sediment core-drilling process for a submarine wire-line coring drill rig includes the following steps.

Landscapes

  • 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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
EP19849850.3A 2018-08-13 2019-04-27 Sediment core-boring drilling process suitable for submarine rope core-boring drill Active EP3690182B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810914274.XA CN109025880B (zh) 2018-08-13 2018-08-13 一种适用于海底绳索取心钻机的沉积物取心钻进工艺
PCT/CN2019/084697 WO2020034661A1 (zh) 2018-08-13 2019-04-27 一种适用于海底绳索取心钻机的沉积物取心钻进工艺

Publications (3)

Publication Number Publication Date
EP3690182A1 EP3690182A1 (en) 2020-08-05
EP3690182A4 EP3690182A4 (en) 2021-06-09
EP3690182B1 true EP3690182B1 (en) 2021-11-24

Family

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EP19849850.3A Active EP3690182B1 (en) 2018-08-13 2019-04-27 Sediment core-boring drilling process suitable for submarine rope core-boring drill

Country Status (3)

Country Link
EP (1) EP3690182B1 (zh)
CN (1) CN109025880B (zh)
WO (1) WO2020034661A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109025880B (zh) * 2018-08-13 2019-11-26 湖南科技大学 一种适用于海底绳索取心钻机的沉积物取心钻进工艺
CN111827911B (zh) * 2020-07-23 2023-04-07 北京探矿工程研究所 一种海底钻机绳索取心动力头、结构及其控制方法
CN111947971B (zh) * 2020-07-31 2023-03-14 天津中科智能识别产业技术研究院有限公司 一种海底沉积物蛇形钻进取样设备及方法
CN112459720A (zh) * 2020-12-18 2021-03-09 湖南科技大学 一种带原位探测装置的水平钻机
CN113006783A (zh) * 2021-04-09 2021-06-22 湖南科技大学 一种适用于水平钻机的原位探测工艺
CN113607479B (zh) * 2021-06-22 2024-07-30 中交第三航务工程勘察设计院有限公司 一种近海岩土工程承压水取样装置及方法
CN113309479B (zh) * 2021-07-12 2022-06-24 中国地质科学院勘探技术研究所 一种用于浅海礁灰岩的高效取心钻井装置及方法
CN115341867B (zh) * 2022-07-25 2024-03-19 广州海洋地质调查局 一种船载钻机海洋沉积物贯入绳索取心装置
CN115898367B (zh) * 2022-11-08 2023-10-03 四川省金钻地质矿产勘探工程有限责任公司 一种隧道超前地质预报钻孔的测量装置及其使用方法
CN116818410B (zh) * 2023-07-12 2023-12-08 浙江华东岩土勘察设计研究院有限公司 一种水域绳索打捞式地质样品取样装置及工作方法

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SU1571212A1 (ru) * 1988-07-14 1990-06-15 Московский Геологоразведочный Институт Им.Серго Орджоникидзе Буровой снар д
JP4482775B2 (ja) * 2000-02-22 2010-06-16 鉱研工業株式会社 ロータリパーカッションドリル用ワイヤラインコア採取装置
CN102606074B (zh) * 2012-04-06 2014-04-02 杭州电子科技大学 新型海底深孔保压取芯钻机
KR101205978B1 (ko) * 2012-06-14 2012-11-28 한국지질자원연구원 코어 내 시료의 손실과 교란현상이 방지되는 시추장치
CN105239947A (zh) * 2015-10-30 2016-01-13 湖南科技大学 一种适用于海底钻机的海底沉积物取芯装置
CN205577920U (zh) * 2015-10-30 2016-09-14 湖南科技大学 一种适用于海底钻机的海底沉积物取芯装置
CN105604514B (zh) * 2016-03-14 2018-10-23 湖南科技大学 一种适用于海底钻机的海底沉积物绳索取心钻具
CN105715221B (zh) * 2016-04-29 2018-02-23 湖南科技大学 一种适用于海底钻机的海底沉积物绳索取心三层管钻具
CN106351597B (zh) * 2016-11-17 2018-10-16 湖南科技大学 一种适用于海底钻机的天然气水合物保压绳索取心钻具
CN109025880B (zh) * 2018-08-13 2019-11-26 湖南科技大学 一种适用于海底绳索取心钻机的沉积物取心钻进工艺

Also Published As

Publication number Publication date
CN109025880A (zh) 2018-12-18
CN109025880B (zh) 2019-11-26
EP3690182A4 (en) 2021-06-09
WO2020034661A1 (zh) 2020-02-20
EP3690182A1 (en) 2020-08-05

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