BR0207407A - Liquid lifting method for subsea drilling rigs - Google Patents

Liquid lifting method for subsea drilling rigs

Info

Publication number
BR0207407A
BR0207407A BR0207407-9A BR0207407A BR0207407A BR 0207407 A BR0207407 A BR 0207407A BR 0207407 A BR0207407 A BR 0207407A BR 0207407 A BR0207407 A BR 0207407A
Authority
BR
Brazil
Prior art keywords
liquid
low density
well
lifting method
drilling mud
Prior art date
Application number
BR0207407-9A
Other languages
Portuguese (pt)
Other versions
BR0207407B1 (en
Inventor
Charles Rapier Dawson
Yuh-Hwang Tsao
Sandra Nowland Hopko
Original Assignee
Exxonmobil Upstream Res Co
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 Exxonmobil Upstream Res Co filed Critical Exxonmobil Upstream Res Co
Publication of BR0207407A publication Critical patent/BR0207407A/en
Publication of BR0207407B1 publication Critical patent/BR0207407B1/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
    • 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)
  • Earth Drilling (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

"METODO DE ELEVAçãO DE LìQUIDO PARA CONDUTORES SUBMARINOS DE PERFURAçãO". Um método para a perfuração de um poço abaixo de um corpo de água, como mostrado, o qual inclui a injeção no poço, a uma profundidade abaixo da superficie de água, de um líquido (74), que tem uma densidade menor do que uma densidade de uma lama de perfuração (76), produzindo-se uma mistura de lama de perfuração (76) e líquido de baixa densidade (74) no poço. A mistura de lama de perfuração (76) e liquido de baixa densidade (74) é retirada de uma extremidade superior do poço. A lama de perfuração (76) e o líquido de baixa densidade (74) são separados, com pelo menos uma porção do líquido de baixa densidade separado (74) retornada para a profundidade abaixo da superfície de água e pelo menos uma porção da lama de perfuração separada (76) retornada para uma extremidade superior da coluna de perfuração (60)."LIQUID LIFTING METHOD FOR UNDERWATER DRILLING CONDUCTORS". A method for drilling a well below a body of water, as shown, which includes injecting a well (74) below the water surface with a liquid (74) having a density of less than one. density of a drilling mud (76), producing a mixture of drilling mud (76) and low density liquid (74) in the well. The drilling mud (76) and low density liquid (74) mixture is withdrawn from an upper end of the well. Drilling mud 76 and low density liquid 74 are separated, with at least a portion of the separated low density liquid 74 returned to the depth below the water surface and at least a portion of the low density liquid. separate drill (76) returned to an upper end of the drill string (60).

BRPI0207407-9A 2001-02-23 2002-02-21 method of drilling a well below a body of water in which a drill bit is rotated at the end of a drill string and method of treating a drilling fluid used to drill a well hole in a ground formation under a body of water. BR0207407B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27130401P 2001-02-23 2001-02-23
US60/271,304 2001-02-23
PCT/US2002/005159 WO2002068795A1 (en) 2001-02-23 2002-02-21 Liquid lift method for drilling risers

Publications (2)

Publication Number Publication Date
BR0207407A true BR0207407A (en) 2005-04-12
BR0207407B1 BR0207407B1 (en) 2011-09-06

Family

ID=23035014

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0207407-9A BR0207407B1 (en) 2001-02-23 2002-02-21 method of drilling a well below a body of water in which a drill bit is rotated at the end of a drill string and method of treating a drilling fluid used to drill a well hole in a ground formation under a body of water.

Country Status (8)

Country Link
AU (1) AU2002245482B2 (en)
BR (1) BR0207407B1 (en)
CA (1) CA2438885C (en)
GB (1) GB2391572B (en)
MX (1) MXPA03007387A (en)
NO (1) NO325188B1 (en)
OA (1) OA12493A (en)
WO (1) WO2002068795A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955411A (en) * 1974-05-10 1976-05-11 Exxon Production Research Company Method for measuring the vertical height and/or density of drilling fluid columns
NO321386B1 (en) * 1997-03-19 2006-05-02 Norsk Hydro As A method and apparatus for separating a fluid comprising several fluid components, preferably separating a source fluid in conjunction with a hydrocarbon / water production rudder
US6197095B1 (en) * 1999-02-16 2001-03-06 John C. Ditria Subsea multiphase fluid separating system and method
US6328107B1 (en) * 1999-09-17 2001-12-11 Exxonmobil Upstream Research Company Method for installing a well casing into a subsea well being drilled with a dual density drilling system

Also Published As

Publication number Publication date
GB2391572B (en) 2005-02-02
OA12493A (en) 2006-05-24
GB0321638D0 (en) 2003-10-15
WO2002068795A1 (en) 2002-09-06
NO325188B1 (en) 2008-02-11
CA2438885A1 (en) 2002-09-06
CA2438885C (en) 2010-01-19
NO20033720L (en) 2003-08-21
NO20033720D0 (en) 2003-08-21
BR0207407B1 (en) 2011-09-06
GB2391572A (en) 2004-02-11
MXPA03007387A (en) 2003-12-04
AU2002245482B2 (en) 2006-06-29

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/02/2002, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 12A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2246 DE 21-01-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.