WO2008107798A3 - Heating device for passage through subterranean asphalt and method of use - Google Patents

Heating device for passage through subterranean asphalt and method of use Download PDF

Info

Publication number
WO2008107798A3
WO2008107798A3 PCT/IB2008/000904 IB2008000904W WO2008107798A3 WO 2008107798 A3 WO2008107798 A3 WO 2008107798A3 IB 2008000904 W IB2008000904 W IB 2008000904W WO 2008107798 A3 WO2008107798 A3 WO 2008107798A3
Authority
WO
WIPO (PCT)
Prior art keywords
casing segment
end cap
asphalt
casing
subterranean
Prior art date
Application number
PCT/IB2008/000904
Other languages
French (fr)
Other versions
WO2008107798A2 (en
Inventor
Louis Wardlaw
Original Assignee
Louis Wardlaw
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 Louis Wardlaw filed Critical Louis Wardlaw
Publication of WO2008107798A2 publication Critical patent/WO2008107798A2/en
Publication of WO2008107798A3 publication Critical patent/WO2008107798A3/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • 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
    • E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
    • E21B27/02—Dump bailers, i.e. containers for depositing substances, e.g. cement or acids
    • 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
    • E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/008—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using chemical heat generating means
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Abstract

A lowermost casing segment (8) in a tubular casing string, capped with a cast iron end cap (9), has an ignitable thermite mixture (13) within the interior of such casing segment which, when ignited, superheats the end cap and the casing segment, to allow the casing segment and the end cap to be lowered completely through a subterranean asphalt formation (3) without allowing the asphalt to enter the interior of the casing segment. The cast iron end cap is then drilled out to allow further drilling through the casing segment into oil and gas formations beneath the asphalt formation. In a first embodiment, the casing segment has a top cap (10) to constrain the thermite mixture. In a second embodiment, the thermite mixture is located within a metal capsule (26) which can be lowered into the casing segment to rest against the bottom end cap, and then be removed by a wireline.
PCT/IB2008/000904 2007-03-05 2008-03-05 Heating device for passage through subterranean asphalt and method of use WO2008107798A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/715,086 US20080217058A1 (en) 2007-03-05 2007-03-05 Heating device for passage through subterranean asphalt and method of use
US11/715,086 2007-03-05

Publications (2)

Publication Number Publication Date
WO2008107798A2 WO2008107798A2 (en) 2008-09-12
WO2008107798A3 true WO2008107798A3 (en) 2010-05-20

Family

ID=39738876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000904 WO2008107798A2 (en) 2007-03-05 2008-03-05 Heating device for passage through subterranean asphalt and method of use

Country Status (2)

Country Link
US (1) US20080217058A1 (en)
WO (1) WO2008107798A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164886A (en) * 1981-02-23 1986-04-03 Hot Hed Inc Welding preheating insert for heavy wall pipe
US6102120A (en) * 1996-12-13 2000-08-15 Schlumberger Technology Corporation Zone isolation tools
WO2002027137A1 (en) * 2000-09-26 2002-04-04 Rawwater Engineering Company Limited Well sealing method and apparatus
US20060037749A1 (en) * 2004-08-20 2006-02-23 Wardlaw Louis J Well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit in a subterranean well
WO2006039362A2 (en) * 2004-09-29 2006-04-13 Baker Hughes Incorporated Process for downhole heating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046567A (en) * 1989-11-13 1991-09-10 Mecano-Tech, Inc. Adiabatically induced ignition of combustible materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164886A (en) * 1981-02-23 1986-04-03 Hot Hed Inc Welding preheating insert for heavy wall pipe
US6102120A (en) * 1996-12-13 2000-08-15 Schlumberger Technology Corporation Zone isolation tools
WO2002027137A1 (en) * 2000-09-26 2002-04-04 Rawwater Engineering Company Limited Well sealing method and apparatus
US20060037749A1 (en) * 2004-08-20 2006-02-23 Wardlaw Louis J Well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit in a subterranean well
WO2006039362A2 (en) * 2004-09-29 2006-04-13 Baker Hughes Incorporated Process for downhole heating

Also Published As

Publication number Publication date
US20080217058A1 (en) 2008-09-11
WO2008107798A2 (en) 2008-09-12

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