GB2372061A - A method and apparatus for treating pressurized drilling fluid returns from a well - Google Patents

A method and apparatus for treating pressurized drilling fluid returns from a well Download PDF

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Publication number
GB2372061A
GB2372061A GB0203936A GB0203936A GB2372061A GB 2372061 A GB2372061 A GB 2372061A GB 0203936 A GB0203936 A GB 0203936A GB 0203936 A GB0203936 A GB 0203936A GB 2372061 A GB2372061 A GB 2372061A
Authority
GB
United Kingdom
Prior art keywords
drilling fluid
fluid returns
separator
input
returns
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.)
Granted
Application number
GB0203936A
Other versions
GB0203936D0 (en
GB2372061B (en
Inventor
Theodore Allen Morgan
David Speed
Carel W J Hoyer
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.)
Northland Energy Corp
Original Assignee
Northland Energy Corp
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
Priority claimed from US09/442,450 external-priority patent/US6315813B1/en
Priority claimed from US09/626,857 external-priority patent/US6413297B1/en
Application filed by Northland Energy Corp filed Critical Northland Energy Corp
Publication of GB0203936D0 publication Critical patent/GB0203936D0/en
Publication of GB2372061A publication Critical patent/GB2372061A/en
Application granted granted Critical
Publication of GB2372061B publication Critical patent/GB2372061B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0031—Degasification of liquids by filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)

Abstract

A method and apparatus for treating pressurized drilling fluid returns from a well having a returns outlet. The method comprises the steps of providing a primary separator for selectively separating solid, liquid and gas components of the drilling fluid returns where the primary separator has an input for introducing drilling fluid returns thereto: providing a secondary separator for selectively separating at least a portion of a gas component in the drilling fluid returns where the secondary separator has an input for introducing drilling fluid returns thereto: connecting the input of the primary separator and the input of the secondary separator to the returns outlet of the well such that the input of the secondary separator is connected to the well returns outlet upstream of the input of the primary separator; providing a control to regulate the flow of drilling fluid returns through the input of the primary and secondary separators: monitoring the flow of the gas component of the drilling fluid returns expelled from the primary separator; and, in response to changes in the flow of gas expelled from the primary separator, operating the control to regulate the flow of drilling fluid returns through the primary and secondary separators to maintain the flow of gas expelled from the primary separator within predetermined parameters.

Description

ail, UK Patent Application 'g, GB all, 2 372 061 a, A (43} Date of
Printing by UK Office 14.08.2002 (21) Application No 0203936.0 (51) INT CL7 CORK 7/00, BOlD 19/00, E21B 21/06 21/08 (22) Date of Filing 15.11. 2000 (52) UK CL (Edition T) (30) Priority Data E1F FGM (31) 09442450 (32) 18.11.1999 (33) US
(31) 09626857 (32) 27.07.2000 (56) Documents Cited by ISA US 5928519 A US 5775442 A
(86) International Application Data PCT/CA2000/001358 En 15.11.2000 (58) Field of Search by ISA
INT CL7 B01D, COOK, E21B
(87) International Publication Data Online: EPO-lnternal, PAJ, WPI Data, API Data (74) Agent and/or Address for Service (71) Appiicant(s) D.W.&S.W. Gee Northland Energy Coporation 1 South Lynn Gardens, London Road llacorporated in Canada) SHIPSTON ON STOUR, Warwickshire, CV36 4ER, 4500 Petro-Canada Centre, 150-6th Avenue S.W., United Kingdom Calgary, Alberta T2P 3Y7, Canada (72) Inventor(s) Theodore Allen Morgan David Speed Carel W J Hoyer {54) Abstrac'Title A method and apparatus for treating pressurized drilling fluid returns from a well (57) A method and apparatus fortreating pressurized drilling fluid returns from a well having a returns outlet.
The method comprises the steps of providing a primary separator for selectively separating solid, liquid and gas components of the drilling fluid returns where the primary separator has an input for introducing drilling fluid returns thereto: providing a secondary separator for selectively separating at least a portion of a gas component in the drilling fluid returns where the secondary separator has an input for introducing drilling fluid returns thereto: connecting the input of the primary separator and the input of the secondary separator to the returns outlet of the well such that the input of the secondary separator is connected to the well returns outlet upstream of the input of the primary separator; providing a control to regulate the flow of drilling fluid returns through the input of the primary and secondary separators: monitoring the flow of the gas component of the drilling fluid returns expelled from the primary separator; and, in response to changes in the flow of gas expelled from the primary separator, operating the control to regulate the flow of drilling fluid returns through the primary and secondary separators to maintain the flow of gas expelled from the primary separator within predetermined parameters.
.. 35 _._
2: 0 5 76 23 7b D
GB0203936A 1999-11-18 2000-11-15 A method and apparatus for treating pressurized drilling fluid returns from a well Expired - Lifetime GB2372061B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/442,450 US6315813B1 (en) 1999-11-18 1999-11-18 Method of treating pressurized drilling fluid returns from a well
US09/626,857 US6413297B1 (en) 2000-07-27 2000-07-27 Method and apparatus for treating pressurized drilling fluid returns from a well
PCT/CA2000/001358 WO2001036561A1 (en) 1999-11-18 2000-11-15 A method and apparatus for treating pressurized drilling fluid returns from a well

Publications (3)

Publication Number Publication Date
GB0203936D0 GB0203936D0 (en) 2002-04-03
GB2372061A true GB2372061A (en) 2002-08-14
GB2372061B GB2372061B (en) 2003-09-24

Family

ID=27033170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0203936A Expired - Lifetime GB2372061B (en) 1999-11-18 2000-11-15 A method and apparatus for treating pressurized drilling fluid returns from a well

Country Status (5)

Country Link
AU (1) AU1682801A (en)
CA (1) CA2380308C (en)
GB (1) GB2372061B (en)
NO (1) NO326068B1 (en)
WO (1) WO2001036561A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005287856B2 (en) * 2004-09-21 2010-03-04 Benthic Geotech Pty Ltd Remote gas monitoring apparatus for seabed drilling
FR2972365B1 (en) * 2011-03-07 2015-04-24 Total Sa CYCLONIC FLOW SEPARATOR.
GB2521373A (en) 2013-12-17 2015-06-24 Managed Pressure Operations Apparatus and method for degassing drilling fluid
GB2521374A (en) 2013-12-17 2015-06-24 Managed Pressure Operations Drilling system and method of operating a drilling system
CN104265267B (en) * 2014-09-19 2017-02-01 中国石油大学(华东) Gas-liquid bi-phase flow measuring device and measuring method applied to control pressure well drilling
DE102021107660A1 (en) * 2021-03-26 2022-09-29 Robert Staudacher Hydrocyclone degassing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775442A (en) * 1996-10-25 1998-07-07 Northland Production Testing, Ltd. Recovery of gas from drilling fluid returns in underbalanced drilling
US5928519A (en) * 1996-06-27 1999-07-27 Homan; Edwin Daryl Method for separating components in well fluids

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397659A (en) * 1981-06-22 1983-08-09 Lucas Industries Limited Flowline degaser
US5129468A (en) * 1991-02-01 1992-07-14 Conoco Specialty Products Inc. Method and apparatus for separating drilling and production fluids
NO953318D0 (en) * 1995-08-24 1995-08-24 Read Process Eng As Oil Processing Equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928519A (en) * 1996-06-27 1999-07-27 Homan; Edwin Daryl Method for separating components in well fluids
US5775442A (en) * 1996-10-25 1998-07-07 Northland Production Testing, Ltd. Recovery of gas from drilling fluid returns in underbalanced drilling

Also Published As

Publication number Publication date
CA2380308C (en) 2005-05-24
NO20020906L (en) 2002-04-29
NO20020906D0 (en) 2002-02-25
GB0203936D0 (en) 2002-04-03
WO2001036561A1 (en) 2001-05-25
NO326068B1 (en) 2008-09-15
CA2380308A1 (en) 2001-05-25
AU1682801A (en) 2001-05-30
GB2372061B (en) 2003-09-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20200123 AND 20200129

PE20 Patent expired after termination of 20 years

Expiry date: 20201114