ATE173050T1 - DRIVE MACHINE FOR PERFORMING UNDERWATER WORKS AND USE FOR DRIVING A SAMPLER - Google Patents

DRIVE MACHINE FOR PERFORMING UNDERWATER WORKS AND USE FOR DRIVING A SAMPLER

Info

Publication number
ATE173050T1
ATE173050T1 AT92909601T AT92909601T ATE173050T1 AT E173050 T1 ATE173050 T1 AT E173050T1 AT 92909601 T AT92909601 T AT 92909601T AT 92909601 T AT92909601 T AT 92909601T AT E173050 T1 ATE173050 T1 AT E173050T1
Authority
AT
Austria
Prior art keywords
low pressure
sampler
pressure reservoir
machine
hydrostatic
Prior art date
Application number
AT92909601T
Other languages
German (de)
Inventor
Kare Aardal
Original Assignee
Selantic Ind As
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 NO911668A external-priority patent/NO911668D0/en
Priority claimed from NO911669A external-priority patent/NO911669D0/en
Application filed by Selantic Ind As filed Critical Selantic Ind As
Application granted granted Critical
Publication of ATE173050T1 publication Critical patent/ATE173050T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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, core extractors
    • E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being specially adapted for operation under water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling
    • E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature

Abstract

A machine for performing work at great depths utilizes the energy which is released when surrounding water masses at great hydrostatic pressure are admitted into a low pressure reservoir via a hydraulic motor (2). The machine uses a built-in low pressure reservoir (3) as a hydrostatic accumulator, the energy which is released when the surrounding fluid is admitted into the low pressure reservoir being determined by the product of the pressure difference and the internal volume of the low pressure reservoir. In a special version (Fig. 10) the machine is designed as a hydrostatic sampler which is particularly adapted for taking core samples or marine sediments on the seabed.
AT92909601T 1991-04-26 1992-04-24 DRIVE MACHINE FOR PERFORMING UNDERWATER WORKS AND USE FOR DRIVING A SAMPLER ATE173050T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO911668A NO911668D0 (en) 1991-04-26 1991-04-26 HYDROSTATIC TESTAKER.
NO911669A NO911669D0 (en) 1991-04-26 1991-04-26 MACHINE FOR PERFORMING WORK ON LARGE SEA DIP UNDER THE USE OF HYDROSTATIC PRESSURE.

Publications (1)

Publication Number Publication Date
ATE173050T1 true ATE173050T1 (en) 1998-11-15

Family

ID=26648283

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92909601T ATE173050T1 (en) 1991-04-26 1992-04-24 DRIVE MACHINE FOR PERFORMING UNDERWATER WORKS AND USE FOR DRIVING A SAMPLER

Country Status (8)

Country Link
EP (1) EP0581838B1 (en)
JP (1) JPH06506996A (en)
AT (1) ATE173050T1 (en)
AU (1) AU656186B2 (en)
CA (1) CA2109107A1 (en)
DE (1) DE69227511T2 (en)
NO (1) NO933843L (en)
WO (1) WO1992019836A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO964259D0 (en) * 1996-10-07 1996-10-07 Kaare Aardal Hydrostatic work device and tools for the same
NO964723L (en) * 1996-11-07 1998-05-08 Selantic As Inverted accumulator
CN102678682B (en) * 2012-05-22 2015-06-10 淮海工学院 Underwater constant pressure difference gas source
GB2573121B (en) 2018-04-24 2020-09-30 Subsea 7 Norway As Injecting fluid into a hydrocarbon production line or processing system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118417A (en) * 1962-07-30 1964-01-21 Stanwick Tad Method and apparatus for anchor embedment
US3418818A (en) * 1966-04-22 1968-12-31 Pan American Petroleum Corp Underwater power source
US3436914A (en) * 1967-05-29 1969-04-08 Us Navy Hydrostatic energy accumulator
US3412814A (en) * 1967-06-28 1968-11-26 Usa Hydrostatic corer
US3504648A (en) * 1968-04-29 1970-04-07 Frederick A Kriedt Deepwater hydraulic power unit
US3595012A (en) * 1970-02-06 1971-07-27 Us Navy Sea pressure operated power device
US3670680A (en) * 1970-09-25 1972-06-20 Frederick A Kriedt Water expulsion system
US4215544A (en) * 1978-05-17 1980-08-05 Tad Stanwick Method of generating rotary power in a deepsea environment
US4619593A (en) * 1979-09-11 1986-10-28 Steven Molnar Apparatus comprising a turbine and associated water extractor and method of translating the potential energy of deep sea water into useful work
NL8800632A (en) * 1988-03-15 1989-10-02 Ihc Holland Nv METHOD FOR DRIVING A HYDRAULIC UNDERWATER TOOL.

Also Published As

Publication number Publication date
AU1686992A (en) 1992-12-21
AU656186B2 (en) 1995-01-27
NO933843L (en) 1993-12-27
EP0581838A1 (en) 1994-02-09
DE69227511T2 (en) 1999-07-15
WO1992019836A1 (en) 1992-11-12
NO933843D0 (en) 1993-10-25
JPH06506996A (en) 1994-08-04
CA2109107A1 (en) 1992-10-27
EP0581838B1 (en) 1998-11-04
DE69227511D1 (en) 1998-12-10

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties