NO20151451A1 - Improvements in particular relating to wellbore circulation operations - Google Patents

Improvements in particular relating to wellbore circulation operations

Info

Publication number
NO20151451A1
NO20151451A1 NO20151451A NO20151451A NO20151451A1 NO 20151451 A1 NO20151451 A1 NO 20151451A1 NO 20151451 A NO20151451 A NO 20151451A NO 20151451 A NO20151451 A NO 20151451A NO 20151451 A1 NO20151451 A1 NO 20151451A1
Authority
NO
Norway
Prior art keywords
particular relating
circulation operations
wellbore circulation
wellbore
operations
Prior art date
Application number
NO20151451A
Other languages
Norwegian (no)
Other versions
NO340649B1 (en
Inventor
Eirik Haugland
Original Assignee
Ehi 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 Ehi As filed Critical Ehi As
Publication of NO20151451A1 publication Critical patent/NO20151451A1/en
Publication of NO340649B1 publication Critical patent/NO340649B1/en

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • 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
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • 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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Lubricants (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
NO20151451A 2015-10-23 2015-10-26 Improvements in particular relating to wellbore circulation operations NO340649B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20151444 2015-10-23

Publications (2)

Publication Number Publication Date
NO20151451A1 true NO20151451A1 (en) 2017-04-27
NO340649B1 NO340649B1 (en) 2017-05-22

Family

ID=61827218

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20151451A NO340649B1 (en) 2015-10-23 2015-10-26 Improvements in particular relating to wellbore circulation operations

Country Status (1)

Country Link
NO (1) NO340649B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149603A (en) * 1977-09-06 1979-04-17 Arnold James F Riserless mud return system
WO1999061745A1 (en) * 1998-05-26 1999-12-02 Agr Services As Arrangement for the removal of cuttings and gas arising from drilling operations
WO2006031119A1 (en) * 2004-08-19 2006-03-23 Agr Subsea As Method and system for return of drilling fluid
CN201963231U (en) * 2010-12-22 2011-09-07 中国海洋石油总公司 Subsea mud suction system for realizing riser-free mud recovery drilling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149603A (en) * 1977-09-06 1979-04-17 Arnold James F Riserless mud return system
WO1999061745A1 (en) * 1998-05-26 1999-12-02 Agr Services As Arrangement for the removal of cuttings and gas arising from drilling operations
WO2006031119A1 (en) * 2004-08-19 2006-03-23 Agr Subsea As Method and system for return of drilling fluid
CN201963231U (en) * 2010-12-22 2011-09-07 中国海洋石油总公司 Subsea mud suction system for realizing riser-free mud recovery drilling

Also Published As

Publication number Publication date
NO340649B1 (en) 2017-05-22

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NO20151451A1 (en) Improvements in particular relating to wellbore circulation operations

Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: NOROCEAN AS, NO

CREP Change of representative
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: ENHANCED DRILLING AS, NO

CREP Change of representative

Representative=s name: PROTECTOR IP AS, PILESTREDET 33, 0166 OSLO, NORGE