GB1482441A - Method and apparatus for the control of a weight suspended from a floating vessel - Google Patents

Method and apparatus for the control of a weight suspended from a floating vessel

Info

Publication number
GB1482441A
GB1482441A GB3129374A GB3129374A GB1482441A GB 1482441 A GB1482441 A GB 1482441A GB 3129374 A GB3129374 A GB 3129374A GB 3129374 A GB3129374 A GB 3129374A GB 1482441 A GB1482441 A GB 1482441A
Authority
GB
United Kingdom
Prior art keywords
accumulator
heave
fluid
withdrawn
july
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.)
Expired
Application number
GB3129374A
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.)
VETO OFFSHORE IND Inc
Original Assignee
VETO OFFSHORE IND Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US378963A external-priority patent/US3871622A/en
Application filed by VETO OFFSHORE IND Inc filed Critical VETO OFFSHORE IND Inc
Publication of GB1482441A publication Critical patent/GB1482441A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/09—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators

Landscapes

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

Abstract

1482441 Heave compensation VETCO OFFSHORE INDUSTRIES Inc 15 July 1974 [13 July 1973] 31293/74 Heading E1F Apparatus for use on a drill vessel to support a drill string and compensate for heave of the vessel includes an assembly of two cylinders with pistons therein, two accumulator systems each connected to a respective one of the cylinders, and control apparatus for causing fluid to be delivered to or withdrawn from one of the accumulator systems to ensure that the load supported by the assembly remains constant. The system disclosed corresponds closely with that disclosed in Specification 1480616 except that in this case the signal from load cell 35 is compared with that from reference pressure sensor 36 and the 3-port valve 20 and valves 22, 23 are actuated in response to differences between the signals to deliver fluid to or withdraw it from a line 19 communicating with annular chamber 18 of the heave compensator and with accumulator 30a. No fluid in this case is added to or withdrawn from the accumulator system including accumulator 30 which communicates with chamber 4 of the compensator.
GB3129374A 1973-07-13 1974-07-15 Method and apparatus for the control of a weight suspended from a floating vessel Expired GB1482441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US378963A US3871622A (en) 1972-07-25 1973-07-13 Method and apparatus for the control of a weight suspended from a floating vessel

Publications (1)

Publication Number Publication Date
GB1482441A true GB1482441A (en) 1977-08-10

Family

ID=23495257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3129374A Expired GB1482441A (en) 1973-07-13 1974-07-15 Method and apparatus for the control of a weight suspended from a floating vessel

Country Status (4)

Country Link
JP (1) JPS5418643B2 (en)
FR (1) FR2237050B1 (en)
GB (1) GB1482441A (en)
NL (1) NL7405988A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO770299L (en) * 1977-01-28 1978-07-31 Stroemmen Staal A S SYSTEM FOR ACTIVE COMPENSATION OF UNDESIRED RELATIVE MOVEMENTS, PREFERREDLY DURING TRANSFER OF LOAD
BE1005719A3 (en) * 1992-03-17 1993-12-28 Solvay Method for producing epichlorohydrin.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2183384A5 (en) * 1972-05-05 1973-12-14 Inst Francais Du Petrole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus
US11136837B2 (en) 2017-01-18 2021-10-05 Minex Crc Ltd Mobile coiled tubing drilling apparatus

Also Published As

Publication number Publication date
JPS5418643B2 (en) 1979-07-09
FR2237050B1 (en) 1978-02-03
FR2237050A1 (en) 1975-02-07
NL7405988A (en) 1975-01-15
JPS5028408A (en) 1975-03-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee