NO179878C - Trykkforsterker (I) - Google Patents

Trykkforsterker (I)

Info

Publication number
NO179878C
NO179878C NO943855A NO943855A NO179878C NO 179878 C NO179878 C NO 179878C NO 943855 A NO943855 A NO 943855A NO 943855 A NO943855 A NO 943855A NO 179878 C NO179878 C NO 179878C
Authority
NO
Norway
Prior art keywords
pressure amplifier
amplifier
pressure
Prior art date
Application number
NO943855A
Other languages
English (en)
Other versions
NO179878B (no
NO943855D0 (no
NO943855L (no
Inventor
Nils Inge Nilsen
Original Assignee
Statoil 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
Application filed by Statoil As filed Critical Statoil As
Priority to NO943855A priority Critical patent/NO179878C/no
Publication of NO943855D0 publication Critical patent/NO943855D0/no
Priority to EP95935623A priority patent/EP0784730A1/en
Priority to PCT/NO1995/000176 priority patent/WO1996012081A1/en
Priority to US08/809,726 priority patent/US5934392A/en
Priority to AU37567/95A priority patent/AU3756795A/en
Publication of NO943855L publication Critical patent/NO943855L/no
Publication of NO179878B publication Critical patent/NO179878B/no
Publication of NO179878C publication Critical patent/NO179878C/no

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Check Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Measuring Fluid Pressure (AREA)
NO943855A 1994-10-12 1994-10-12 Trykkforsterker (I) NO179878C (no)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO943855A NO179878C (no) 1994-10-12 1994-10-12 Trykkforsterker (I)
EP95935623A EP0784730A1 (en) 1994-10-12 1995-10-03 Pressure converter
PCT/NO1995/000176 WO1996012081A1 (en) 1994-10-12 1995-10-03 Pressure converter
US08/809,726 US5934392A (en) 1994-10-12 1995-10-03 Pressure converter
AU37567/95A AU3756795A (en) 1994-10-12 1995-10-03 Pressure converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO943855A NO179878C (no) 1994-10-12 1994-10-12 Trykkforsterker (I)

Publications (4)

Publication Number Publication Date
NO943855D0 NO943855D0 (no) 1994-10-12
NO943855L NO943855L (no) 1996-04-15
NO179878B NO179878B (no) 1996-09-23
NO179878C true NO179878C (no) 1997-01-08

Family

ID=19897495

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943855A NO179878C (no) 1994-10-12 1994-10-12 Trykkforsterker (I)

Country Status (5)

Country Link
US (1) US5934392A (no)
EP (1) EP0784730A1 (no)
AU (1) AU3756795A (no)
NO (1) NO179878C (no)
WO (1) WO1996012081A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008038856A (ja) * 2006-08-10 2008-02-21 Toyota Industries Corp 可変容量型圧縮機用制御弁

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047581A (en) * 1976-12-01 1977-09-13 Kobe, Inc. Multistage, downhole, turbo-powered intensifier for drilling petroleum wells
GB8806465D0 (en) * 1988-03-18 1988-04-20 Intech Oil Tools Ltd Flow pulsing apparatus for down-hole drilling equipment
GB8806506D0 (en) * 1988-03-18 1988-04-20 Pilot Drilling Control Ltd Drilling apparatus
NO169088C (no) * 1989-11-08 1992-05-06 Norske Stats Oljeselskap Trykkforsterker for montering ovenfor borkronen ved den nedre ende av et boreroer for dypboring, samt trykkforsterkergruppe omfattende et flertall slike trykkforsterkere
US5361857A (en) * 1990-11-19 1994-11-08 Den Norske Stats Oljeselskap A.S. Pressure converter
BR9107023A (pt) * 1990-11-19 1993-08-17 Norske Stats Oljeselskap Grupo conversor e conversor de pressao particulamente para emprego no mesmo
EP0661459A1 (en) * 1993-12-31 1995-07-05 Nowsco Well Service Ltd. Hydraulic pressure intensifier for drilling wells
US5632604A (en) * 1994-12-14 1997-05-27 Milmac Down hole pressure pump
US5787998A (en) * 1995-08-03 1998-08-04 Flowdril Corporation Down hole pressure intensifier and drilling assembly and method

Also Published As

Publication number Publication date
NO179878B (no) 1996-09-23
NO943855D0 (no) 1994-10-12
NO943855L (no) 1996-04-15
WO1996012081A1 (en) 1996-04-25
EP0784730A1 (en) 1997-07-23
US5934392A (en) 1999-08-10
AU3756795A (en) 1996-05-06

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN APRIL 2001