GB0708041D0 - Managed pressure drill - Google Patents

Managed pressure drill

Info

Publication number
GB0708041D0
GB0708041D0 GBGB0708041.9A GB0708041A GB0708041D0 GB 0708041 D0 GB0708041 D0 GB 0708041D0 GB 0708041 A GB0708041 A GB 0708041A GB 0708041 D0 GB0708041 D0 GB 0708041D0
Authority
GB
United Kingdom
Prior art keywords
managed pressure
pressure drill
drill
managed
pressure
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
GBGB0708041.9A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
Original Assignee
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
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 Gemalto Terminals Ltd, Schlumberger Holdings Ltd filed Critical Gemalto Terminals Ltd
Priority to GBGB0708041.9A priority Critical patent/GB0708041D0/en
Publication of GB0708041D0 publication Critical patent/GB0708041D0/en
Priority to US11/968,010 priority patent/US7775299B2/en
Ceased legal-status Critical Current

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
    • E21B21/08—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
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation 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)
GBGB0708041.9A 2007-04-26 2007-04-26 Managed pressure drill Ceased GB0708041D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0708041.9A GB0708041D0 (en) 2007-04-26 2007-04-26 Managed pressure drill
US11/968,010 US7775299B2 (en) 2007-04-26 2007-12-31 Method and apparatus for programmable pressure drilling and programmable gradient drilling, and completion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0708041.9A GB0708041D0 (en) 2007-04-26 2007-04-26 Managed pressure drill

Publications (1)

Publication Number Publication Date
GB0708041D0 true GB0708041D0 (en) 2007-06-06

Family

ID=38170690

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0708041.9A Ceased GB0708041D0 (en) 2007-04-26 2007-04-26 Managed pressure drill

Country Status (1)

Country Link
GB (1) GB0708041D0 (en)

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)