NO180127C - Rörkrave - Google Patents

Rörkrave

Info

Publication number
NO180127C
NO180127C NO904797A NO904797A NO180127C NO 180127 C NO180127 C NO 180127C NO 904797 A NO904797 A NO 904797A NO 904797 A NO904797 A NO 904797A NO 180127 C NO180127 C NO 180127C
Authority
NO
Norway
Prior art keywords
rörkrave
Prior art date
Application number
NO904797A
Other languages
English (en)
Other versions
NO904797D0 (no
NO904797L (no
NO180127B (no
Inventor
Bernard J Eastlund
Kenneth J Schmitt
Douglas C Anderson
Original Assignee
Production Tech Int
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 Production Tech Int filed Critical Production Tech Int
Publication of NO904797D0 publication Critical patent/NO904797D0/no
Publication of NO904797L publication Critical patent/NO904797L/no
Publication of NO180127B publication Critical patent/NO180127B/no
Publication of NO180127C publication Critical patent/NO180127C/no

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Resistance Heating (AREA)
  • Paper (AREA)
  • Gasket Seals (AREA)
  • Earth Drilling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Glass Compositions (AREA)
NO904797A 1988-05-06 1990-11-05 Rörkrave NO180127C (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/190,780 US4861074A (en) 1988-05-06 1988-05-06 Tubing collar
PCT/US1989/001863 WO1989011056A1 (en) 1988-05-06 1989-05-02 Tubing collar

Publications (4)

Publication Number Publication Date
NO904797D0 NO904797D0 (no) 1990-11-05
NO904797L NO904797L (no) 1990-11-05
NO180127B NO180127B (no) 1996-11-11
NO180127C true NO180127C (no) 1997-02-19

Family

ID=22702744

Family Applications (1)

Application Number Title Priority Date Filing Date
NO904797A NO180127C (no) 1988-05-06 1990-11-05 Rörkrave

Country Status (8)

Country Link
US (1) US4861074A (no)
EP (1) EP0413753B1 (no)
JP (1) JP2650768B2 (no)
AU (1) AU619843B2 (no)
CA (1) CA1301057C (no)
NO (1) NO180127C (no)
RU (1) RU2070679C1 (no)
WO (1) WO1989011056A1 (no)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2151525C (en) 1995-06-12 2002-12-31 Marvin L. Holbert Subsurface signal transmitting apparatus
US7252160B2 (en) * 1995-06-12 2007-08-07 Weatherford/Lamb, Inc. Electromagnetic gap sub assembly
US6264401B1 (en) 1995-12-29 2001-07-24 Shell Oil Company Method for enhancing the flow of heavy crudes through subsea pipelines
US6315497B1 (en) 1995-12-29 2001-11-13 Shell Oil Company Joint for applying current across a pipe-in-pipe system
US6142707A (en) * 1996-03-26 2000-11-07 Shell Oil Company Direct electric pipeline heating
US6171025B1 (en) 1995-12-29 2001-01-09 Shell Oil Company Method for pipeline leak detection
US6179523B1 (en) 1995-12-29 2001-01-30 Shell Oil Company Method for pipeline installation
GB9909621D0 (en) * 1999-04-27 1999-06-23 Well Intelligence Technologies Telemetry system
GB0116120D0 (en) * 2001-06-30 2001-08-22 Maxwell Downhole Technology Lt Insulating device and assembly
US6814146B2 (en) * 2001-07-20 2004-11-09 Shell Oil Company Annulus for electrically heated pipe-in-pipe subsea pipeline
US6739803B2 (en) 2001-07-20 2004-05-25 Shell Oil Company Method of installation of electrically heated pipe-in-pipe subsea pipeline
US6686745B2 (en) 2001-07-20 2004-02-03 Shell Oil Company Apparatus and method for electrical testing of electrically heated pipe-in-pipe pipeline
US6714018B2 (en) 2001-07-20 2004-03-30 Shell Oil Company Method of commissioning and operating an electrically heated pipe-in-pipe subsea pipeline
US6688900B2 (en) 2002-06-25 2004-02-10 Shell Oil Company Insulating joint for electrically heated pipeline
US6937030B2 (en) * 2002-11-08 2005-08-30 Shell Oil Company Testing electrical integrity of electrically heated subsea pipelines
US7032930B2 (en) * 2003-02-28 2006-04-25 Ryan Energy Technologies Electrical isolation connector subassembly for use in directional drilling
CA2509819C (en) * 2004-06-14 2009-08-11 Weatherford/Lamb, Inc. Methods and apparatus for reducing electromagnetic signal noise
EP2719934B1 (en) 2010-05-17 2015-05-27 Parker Hannifin GmbH Dielectric fitting assembly
CA2832828A1 (en) * 2012-11-12 2014-05-12 Multi-Shot Llc Electrical isolation connection for electromagnetic gap sub
CA3048249C (en) * 2016-12-23 2021-07-06 Evolution Engineering Inc. Sealed gap sub

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231202A (en) * 1914-09-09 1917-06-26 Frank D Saylor Insulating-joint.
US3944262A (en) * 1974-09-12 1976-03-16 Continental Industries, Inc. Insulated meter riser
US4011652A (en) * 1976-04-29 1977-03-15 Psi Products, Inc. Method for making a pipe coupling
US4496174A (en) * 1981-01-30 1985-01-29 Tele-Drill, Inc. Insulated drill collar gap sub assembly for a toroidal coupled telemetry system

Also Published As

Publication number Publication date
NO904797D0 (no) 1990-11-05
EP0413753A1 (en) 1991-02-27
RU2070679C1 (ru) 1996-12-20
WO1989011056A1 (en) 1989-11-16
JP2650768B2 (ja) 1997-09-03
AU3575289A (en) 1989-11-29
AU619843B2 (en) 1992-02-06
NO904797L (no) 1990-11-05
US4861074A (en) 1989-08-29
EP0413753A4 (en) 1991-07-24
EP0413753B1 (en) 1992-09-09
NO180127B (no) 1996-11-11
CA1301057C (en) 1992-05-19
JPH03505479A (ja) 1991-11-28

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Legal Events

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

Free format text: LAPSED IN NOVEMBER 2000