CA2497303A1 - Three-dimensional well system for accessing subterranean zones - Google Patents

Three-dimensional well system for accessing subterranean zones Download PDF

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Publication number
CA2497303A1
CA2497303A1 CA002497303A CA2497303A CA2497303A1 CA 2497303 A1 CA2497303 A1 CA 2497303A1 CA 002497303 A CA002497303 A CA 002497303A CA 2497303 A CA2497303 A CA 2497303A CA 2497303 A1 CA2497303 A1 CA 2497303A1
Authority
CA
Canada
Prior art keywords
subterranean zones
well system
dimensional well
accessing subterranean
entry well
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
CA002497303A
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French (fr)
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CA2497303C (en
Inventor
Joseph A. Zupanick
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.)
CDX Gas LLC
Original Assignee
Cdx Gas, L.L.C.
Joseph A. Zupanick
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 Cdx Gas, L.L.C., Joseph A. Zupanick filed Critical Cdx Gas, L.L.C.
Publication of CA2497303A1 publication Critical patent/CA2497303A1/en
Application granted granted Critical
Publication of CA2497303C publication Critical patent/CA2497303C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/006Production of coal-bed methane
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14Obtaining from a multiple-zone well
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30Specific pattern of wells, e.g. optimizing the spacing of wells
    • E21B43/305Specific pattern of wells, e.g. optimizing the spacing of wells comprising at least one inclined or horizontal well

Abstract

A drainage system for accessing multiple subterranean zones (20A, 20B, 20C) from the surface includes an entry well (30) extending from the surface. The system also includes two or more exterior drainage wells (40) extending from the entry well through the subterranean zones. The exterior drainage wells each extend outwardly and downwardly from the entry well for a first selected distance and then extend downwardly in a substantially vertical orientation for a second selected distance.
CA002497303A 2002-09-12 2003-09-09 Three-dimensional well system for accessing subterranean zones Expired - Fee Related CA2497303C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/244,083 2002-09-12
US10/244,083 US7025137B2 (en) 2002-09-12 2002-09-12 Three-dimensional well system for accessing subterranean zones
PCT/US2003/028138 WO2004025077A1 (en) 2002-09-12 2003-09-09 Three-dimensional well system for accessing subterranean zones

Publications (2)

Publication Number Publication Date
CA2497303A1 true CA2497303A1 (en) 2004-03-25
CA2497303C CA2497303C (en) 2008-07-08

Family

ID=31991814

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002497303A Expired - Fee Related CA2497303C (en) 2002-09-12 2003-09-09 Three-dimensional well system for accessing subterranean zones

Country Status (10)

Country Link
US (3) US7025137B2 (en)
EP (1) EP1537293A1 (en)
KR (1) KR20050042501A (en)
CN (1) CN1682008A (en)
AU (1) AU2003272292B2 (en)
CA (1) CA2497303C (en)
MX (1) MXPA05002804A (en)
RU (2) RU2338870C2 (en)
WO (1) WO2004025077A1 (en)
ZA (1) ZA200501755B (en)

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US20050133219A1 (en) 2005-06-23
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US7025137B2 (en) 2006-04-11
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US6942030B2 (en) 2005-09-13
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