AU7537900A - Underbalanced perforation - Google Patents

Underbalanced perforation

Info

Publication number
AU7537900A
AU7537900A AU75379/00A AU7537900A AU7537900A AU 7537900 A AU7537900 A AU 7537900A AU 75379/00 A AU75379/00 A AU 75379/00A AU 7537900 A AU7537900 A AU 7537900A AU 7537900 A AU7537900 A AU 7537900A
Authority
AU
Australia
Prior art keywords
chamber
liquid
casing
displaced
flow
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.)
Abandoned
Application number
AU75379/00A
Inventor
James Anderson
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.)
ANDERTECH Ltd
Original Assignee
ANDERTECH 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 ANDERTECH Ltd filed Critical ANDERTECH Ltd
Publication of AU7537900A publication Critical patent/AU7537900A/en
Abandoned legal-status Critical Current

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • 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
    • E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids

Abstract

There is disclosed a method of initiating production of hydrocarbons from a well having a column of liquid to provide a hydrostatic head. The method comprises inserting a tubular member inside a casing to a required depth in the liquid to define a chamber, then sealing the chamber from the outside environment. A gaseous material is then supplied under pressure to the chamber to create a pressure differential between the chamber and the outside environment, and cause the liquid to be displaced and flow along a flow conduit. The displaced liquid is collected and the casing perforated to enable hydrocarbons to flow. An apparatus is provided and includes a tubular member for insertion into the well casing, means for sealing the chamber, gas supply means to supply gas under pressure to the chamber, fluid flow means to allow collection of displaced liquid, and means to perforate the casing.
AU75379/00A 1999-10-01 2000-09-29 Underbalanced perforation Abandoned AU7537900A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9923200 1999-10-01
GBGB9923200.1A GB9923200D0 (en) 1999-10-01 1999-10-01 Fluid extraction
PCT/GB2000/003741 WO2001025595A1 (en) 1999-10-01 2000-09-29 Underbalanced perforation

Publications (1)

Publication Number Publication Date
AU7537900A true AU7537900A (en) 2001-05-10

Family

ID=10861918

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75379/00A Abandoned AU7537900A (en) 1999-10-01 2000-09-29 Underbalanced perforation

Country Status (7)

Country Link
EP (1) EP1220972B1 (en)
AT (1) ATE256247T1 (en)
AU (1) AU7537900A (en)
DE (1) DE60007162D1 (en)
DK (1) DK1220972T3 (en)
GB (1) GB9923200D0 (en)
WO (1) WO2001025595A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6598682B2 (en) 2000-03-02 2003-07-29 Schlumberger Technology Corp. Reservoir communication with a wellbore
US7284612B2 (en) 2000-03-02 2007-10-23 Schlumberger Technology Corporation Controlling transient pressure conditions in a wellbore
US7036594B2 (en) 2000-03-02 2006-05-02 Schlumberger Technology Corporation Controlling a pressure transient in a well
US6732798B2 (en) 2000-03-02 2004-05-11 Schlumberger Technology Corporation Controlling transient underbalance in a wellbore
US7290617B2 (en) 2004-01-13 2007-11-06 Schlumberger Technology Corporation Running a completion assembly without killing a well
US7243725B2 (en) 2004-05-08 2007-07-17 Halliburton Energy Services, Inc. Surge chamber assembly and method for perforating in dynamic underbalanced conditions
WO2010039342A1 (en) 2008-10-03 2010-04-08 Halliburton Energy Services Inc. Method and system for predicting performance of a drilling system
US9759048B2 (en) 2015-06-29 2017-09-12 Owen Oil Tools Lp Perforating gun for underbalanced perforating
CN106930715B (en) * 2017-05-15 2018-12-14 中国石油化工股份有限公司 Oil-water well self-propelled nitrogen negative pressure returns row's casting and dragging free device and its application method
US11346184B2 (en) 2018-07-31 2022-05-31 Schlumberger Technology Corporation Delayed drop assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175042A (en) * 1976-10-26 1979-11-20 Texas Brine Corporation Well completion and work over fluid and method of use
US4650010A (en) * 1984-11-27 1987-03-17 Halliburton Company Borehole devices actuated by fluid pressure
US6065550A (en) * 1996-02-01 2000-05-23 Gardes; Robert Method and system for drilling and completing underbalanced multilateral wells utilizing a dual string technique in a live well
US5635636A (en) * 1996-05-29 1997-06-03 Alexander; Lloyd G. Method of determining inflow rates from underbalanced wells

Also Published As

Publication number Publication date
ATE256247T1 (en) 2003-12-15
WO2001025595A1 (en) 2001-04-12
DE60007162D1 (en) 2004-01-22
EP1220972B1 (en) 2003-12-10
DK1220972T3 (en) 2004-04-13
GB9923200D0 (en) 1999-12-01
EP1220972A1 (en) 2002-07-10

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase