WO2012003101A3 - System and method for controlling wellbore pressure - Google Patents

System and method for controlling wellbore pressure Download PDF

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Publication number
WO2012003101A3
WO2012003101A3 PCT/US2011/041008 US2011041008W WO2012003101A3 WO 2012003101 A3 WO2012003101 A3 WO 2012003101A3 US 2011041008 W US2011041008 W US 2011041008W WO 2012003101 A3 WO2012003101 A3 WO 2012003101A3
Authority
WO
WIPO (PCT)
Prior art keywords
wellbore
return line
fluid
pressure
lift
Prior art date
Application number
PCT/US2011/041008
Other languages
French (fr)
Other versions
WO2012003101A2 (en
Inventor
John H. Cohen
Roger Sverre Stave
Original Assignee
Agr Subsea A.S.
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 Agr Subsea A.S. filed Critical Agr Subsea A.S.
Publication of WO2012003101A2 publication Critical patent/WO2012003101A2/en
Publication of WO2012003101A3 publication Critical patent/WO2012003101A3/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
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A wellbore pressure control system includes a substantially constant head or lift pump ( 22 ) coupled at an inlet thereof to a discharge port of a wellbore ( 14 ). The pump provides a substantially constant head or lift when operated at a constant speed. A fluid return line ( 24 ) is coupled to an outlet ( 18 ) of the pump and extending to the surface of the body of water. A flow control ( 28 ) is disposed in the fluid return line, the flow control operable to controllably restrict a rate of discharge through the return line so that a selected pressure is maintained in the wellbore. A method for controlling fluid pressure in a wellbore includes pumping fluid through a pipe string extended into the wellbore from a device disposed at the surface of a body of water. The fluid is pumped at substantially constant head or lift from above a top of the annular space through a return line to the surface of the water. A pressure in the wellbore is controlled by varying a restriction in the return line.
PCT/US2011/041008 2010-07-01 2011-06-18 System and method for controlling wellbore pressure WO2012003101A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36057410P 2010-07-01 2010-07-01
US61/360,574 2010-07-01

Publications (2)

Publication Number Publication Date
WO2012003101A2 WO2012003101A2 (en) 2012-01-05
WO2012003101A3 true WO2012003101A3 (en) 2012-09-20

Family

ID=45099151

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/041008 WO2012003101A2 (en) 2010-07-01 2011-06-18 System and method for controlling wellbore pressure

Country Status (1)

Country Link
WO (1) WO2012003101A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018815A (en) * 2014-06-27 2014-09-03 华北水利水电大学 Control system of exploitation process of submarine natural gas hydrate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2817486A4 (en) * 2012-02-24 2016-03-02 Halliburton Energy Services Inc Well drilling systems and methods with pump drawing fluid from annulus
GB2502626A (en) 2012-06-01 2013-12-04 Statoil Petroleum As Controlling the fluid pressure of a borehole during drilling
WO2014062664A2 (en) * 2012-10-15 2014-04-24 National Oilwell Varco, L.P. Dual gradient drilling system
US20150240578A1 (en) * 2014-02-21 2015-08-27 Hydril Usa Manufacturing Llc Modular mud lift pump assembly
US9500035B2 (en) 2014-10-06 2016-11-22 Chevron U.S.A. Inc. Integrated managed pressure drilling transient hydraulic model simulator architecture
WO2016062314A1 (en) * 2014-10-24 2016-04-28 Maersk Drilling A/S Apparatus and methods for control of systems for drilling with closed loop mud circulation
WO2016108907A1 (en) * 2014-12-31 2016-07-07 Halliburton Energy Services , Inc. Regulating downhole fluid flow rate using an multi-segmented fluid circulation system model
GB201503166D0 (en) 2015-02-25 2015-04-08 Managed Pressure Operations Riser assembly
WO2019014428A1 (en) * 2017-07-14 2019-01-17 Bp Corporation North America Inc. Riserless managed pressure drilling systems and methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050524A2 (en) * 1998-03-27 1999-10-07 Hydril Company Subsea mud pump
WO2000004269A2 (en) * 1998-07-15 2000-01-27 Deep Vision Llc Subsea wellbore drilling system for reducing bottom hole pressure
US20010050185A1 (en) * 2000-02-17 2001-12-13 Calder Ian Douglas Apparatus and method for returning drilling fluid from a subsea wellbore
WO2003006778A1 (en) * 2001-07-09 2003-01-23 Baker Hughes Inc Drilling system and method for controlling equivalent circulating density during drilling of wellbores
WO2011058031A2 (en) * 2009-11-10 2011-05-19 Ocean Riser Systems As System and method for drilling a subsea well

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7185719B2 (en) 2002-02-20 2007-03-06 Shell Oil Company Dynamic annular pressure control apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050524A2 (en) * 1998-03-27 1999-10-07 Hydril Company Subsea mud pump
WO2000004269A2 (en) * 1998-07-15 2000-01-27 Deep Vision Llc Subsea wellbore drilling system for reducing bottom hole pressure
US20010050185A1 (en) * 2000-02-17 2001-12-13 Calder Ian Douglas Apparatus and method for returning drilling fluid from a subsea wellbore
WO2003006778A1 (en) * 2001-07-09 2003-01-23 Baker Hughes Inc Drilling system and method for controlling equivalent circulating density during drilling of wellbores
WO2011058031A2 (en) * 2009-11-10 2011-05-19 Ocean Riser Systems As System and method for drilling a subsea well

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018815A (en) * 2014-06-27 2014-09-03 华北水利水电大学 Control system of exploitation process of submarine natural gas hydrate

Also Published As

Publication number Publication date
WO2012003101A2 (en) 2012-01-05

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