ATE319911T1 - THROTTLE VALVE FOR VACUUM DRILLING - Google Patents

THROTTLE VALVE FOR VACUUM DRILLING

Info

Publication number
ATE319911T1
ATE319911T1 AT02291569T AT02291569T ATE319911T1 AT E319911 T1 ATE319911 T1 AT E319911T1 AT 02291569 T AT02291569 T AT 02291569T AT 02291569 T AT02291569 T AT 02291569T AT E319911 T1 ATE319911 T1 AT E319911T1
Authority
AT
Austria
Prior art keywords
variable aperture
pressure
drill string
downhole
throttle valve
Prior art date
Application number
AT02291569T
Other languages
German (de)
Inventor
Foll Pierre Le
Original Assignee
Schlumberger Services Petrol
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 Schlumberger Services Petrol filed Critical Schlumberger Services Petrol
Application granted granted Critical
Publication of ATE319911T1 publication Critical patent/ATE319911T1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

A method for underbalance drilling in a reservoir comprises operating a variable aperture of a downhole choke located at a downhole extremity of a drill string. The variable aperture allows to control a pressure differential between a drilling fluid pumped down the drill string from surface and flowing into the variable aperture of the choke, and the drilling fluid flowing out of the variable aperture, in order to achieve a negative differential pressure between a reservoir pressure and a bottom hole pressure at the downhole extremity of the drill string. <IMAGE>
AT02291569T 2002-06-24 2002-06-24 THROTTLE VALVE FOR VACUUM DRILLING ATE319911T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02291569A EP1375817B1 (en) 2002-06-24 2002-06-24 Underbalance drilling downhole choke

Publications (1)

Publication Number Publication Date
ATE319911T1 true ATE319911T1 (en) 2006-03-15

Family

ID=29716949

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02291569T ATE319911T1 (en) 2002-06-24 2002-06-24 THROTTLE VALVE FOR VACUUM DRILLING

Country Status (3)

Country Link
EP (1) EP1375817B1 (en)
AT (1) ATE319911T1 (en)
DE (1) DE60209669D1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8955619B2 (en) 2002-05-28 2015-02-17 Weatherford/Lamb, Inc. Managed pressure drilling
US7836946B2 (en) 2002-10-31 2010-11-23 Weatherford/Lamb, Inc. Rotating control head radial seal protection and leak detection systems
US7926593B2 (en) 2004-11-23 2011-04-19 Weatherford/Lamb, Inc. Rotating control device docking station
US8826988B2 (en) 2004-11-23 2014-09-09 Weatherford/Lamb, Inc. Latch position indicator system and method
US7836973B2 (en) 2005-10-20 2010-11-23 Weatherford/Lamb, Inc. Annulus pressure control drilling systems and methods
WO2008148158A1 (en) * 2007-06-04 2008-12-11 Cardinal Trading Company Pty Ltd Apparatus for use in drilling
US7997345B2 (en) 2007-10-19 2011-08-16 Weatherford/Lamb, Inc. Universal marine diverter converter
US8286734B2 (en) 2007-10-23 2012-10-16 Weatherford/Lamb, Inc. Low profile rotating control device
US8844652B2 (en) 2007-10-23 2014-09-30 Weatherford/Lamb, Inc. Interlocking low profile rotating control device
US9359853B2 (en) 2009-01-15 2016-06-07 Weatherford Technology Holdings, Llc Acoustically controlled subsea latching and sealing system and method for an oilfield device
US8322432B2 (en) 2009-01-15 2012-12-04 Weatherford/Lamb, Inc. Subsea internal riser rotating control device system and method
US8347983B2 (en) 2009-07-31 2013-01-08 Weatherford/Lamb, Inc. Drilling with a high pressure rotating control device
US8347982B2 (en) 2010-04-16 2013-01-08 Weatherford/Lamb, Inc. System and method for managing heave pressure from a floating rig
US9175542B2 (en) 2010-06-28 2015-11-03 Weatherford/Lamb, Inc. Lubricating seal for use with a tubular
CN102213083B (en) * 2011-04-19 2013-10-23 中国石油化工集团公司 Negative pressure perforation and ultra-negative pressure pump suction integrated production process
CN102182439B (en) * 2011-04-26 2013-09-18 中国石油化工集团公司 Balanced-pressure perforation/negative-pressure backflow process
CN105332687B (en) * 2014-08-06 2018-05-22 新疆格瑞迪斯石油技术股份有限公司 The setting method and device of well head goal pressure in controlled pressure drilling control system
CN109915130B (en) * 2017-12-07 2022-02-01 中国石油天然气股份有限公司 Oil testing device and method
US11566514B2 (en) * 2020-10-19 2023-01-31 Halliburton Energy Services, Inc. Bottomhole choke for managed pressure cementing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630691A (en) * 1983-05-19 1986-12-23 Hooper David W Annulus bypass peripheral nozzle jet pump pressure differential drilling tool and method for well drilling
US5174392A (en) * 1991-11-21 1992-12-29 Reinhardt Paul A Mechanically actuated fluid control device for downhole fluid motor
US5355967A (en) * 1992-10-30 1994-10-18 Union Oil Company Of California Underbalance jet pump drilling method
US6230824B1 (en) * 1998-03-27 2001-05-15 Hydril Company Rotating subsea diverter
US6415877B1 (en) * 1998-07-15 2002-07-09 Deep Vision Llc Subsea wellbore drilling system for reducing bottom hole pressure
GB9904380D0 (en) * 1999-02-25 1999-04-21 Petroline Wellsystems Ltd Drilling method
AU2001272642A1 (en) 2000-07-19 2002-01-30 Petroleum Research And Development N.V. A method of determining properties relating to an underbalanced well
CA2315969C (en) * 2000-08-15 2008-07-15 Tesco Corporation Underbalanced drilling tool and method

Also Published As

Publication number Publication date
DE60209669D1 (en) 2006-05-04
EP1375817B1 (en) 2006-03-08
EP1375817A1 (en) 2004-01-02

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Legal Events

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