CA2429396A1 - Bi-directional traction apparatus - Google Patents

Bi-directional traction apparatus Download PDF

Info

Publication number
CA2429396A1
CA2429396A1 CA002429396A CA2429396A CA2429396A1 CA 2429396 A1 CA2429396 A1 CA 2429396A1 CA 002429396 A CA002429396 A CA 002429396A CA 2429396 A CA2429396 A CA 2429396A CA 2429396 A1 CA2429396 A1 CA 2429396A1
Authority
CA
Canada
Prior art keywords
traction
legs
moved
contact
members
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
CA002429396A
Other languages
French (fr)
Other versions
CA2429396C (en
Inventor
Neil Andrew Abercrombie Simpson
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford/Lamb, Inc.
Neil Andrew Abercrombie Simpson
Weatherford Technology Holdings, Llc
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 Weatherford/Lamb, Inc., Neil Andrew Abercrombie Simpson, Weatherford Technology Holdings, Llc filed Critical Weatherford/Lamb, Inc.
Publication of CA2429396A1 publication Critical patent/CA2429396A1/en
Application granted granted Critical
Publication of CA2429396C publication Critical patent/CA2429396C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/14—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for displacing a cable or cable-operated tool, e.g. for logging or perforating operations in deviated 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers
    • E21B37/045—Free-piston scrapers

Abstract

A traction apparatus (1) for propulsion along a bore comprises first and second traction members (6) having outwardly extending legs (14). A propulsion system for operating the traction members (6) comprises a turbine-driven shaft (7) which drives the traction members (6) by way of bearing members (15). In a first phase, one of the legs of the first traction member is moved in one direction whilst in contact with the traction surface to impart the propulsion force at the same time as one of the legs of the second traction member is moved in opposite direction whilst out of contact. In a second phase one of the legs of the second traction member is moved in said one direction whilst in contact with the traction surface to impart the propulsion force at the same time as one of the legs of the first traction member is moved in opposite direction whilst out of contact.
CA002429396A 2000-11-24 2001-11-21 Bi-directional traction apparatus Expired - Fee Related CA2429396C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0028619.5 2000-11-24
GBGB0028619.5A GB0028619D0 (en) 2000-11-24 2000-11-24 Traction apparatus
PCT/GB2001/005150 WO2002042601A1 (en) 2000-11-24 2001-11-21 Bi-directional traction apparatus

Publications (2)

Publication Number Publication Date
CA2429396A1 true CA2429396A1 (en) 2002-05-30
CA2429396C CA2429396C (en) 2007-08-21

Family

ID=9903762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002429396A Expired - Fee Related CA2429396C (en) 2000-11-24 2001-11-21 Bi-directional traction apparatus

Country Status (8)

Country Link
US (1) US6953086B2 (en)
EP (1) EP1341988B1 (en)
AU (1) AU2002223865A1 (en)
CA (1) CA2429396C (en)
DE (1) DE60110254D1 (en)
GB (1) GB0028619D0 (en)
NO (1) NO20032259L (en)
WO (1) WO2002042601A1 (en)

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Also Published As

Publication number Publication date
GB0028619D0 (en) 2001-01-10
EP1341988B1 (en) 2005-04-20
US20040045474A1 (en) 2004-03-11
AU2002223865A1 (en) 2002-06-03
EP1341988A1 (en) 2003-09-10
DE60110254D1 (en) 2005-05-25
CA2429396C (en) 2007-08-21
NO20032259D0 (en) 2003-05-20
WO2002042601A1 (en) 2002-05-30
US6953086B2 (en) 2005-10-11
NO20032259L (en) 2003-07-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20171121