GB2415725A - Downhole tool - Google Patents

Downhole tool Download PDF

Info

Publication number
GB2415725A
GB2415725A GB0519788A GB0519788A GB2415725A GB 2415725 A GB2415725 A GB 2415725A GB 0519788 A GB0519788 A GB 0519788A GB 0519788 A GB0519788 A GB 0519788A GB 2415725 A GB2415725 A GB 2415725A
Authority
GB
United Kingdom
Prior art keywords
sleeve
tool
seat
ball
deformable
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
GB0519788A
Other versions
GB0519788D0 (en
GB2415725B (en
Inventor
George Telfer
Edward Docherty Scott
Rae Andrew Younger
James Edward Atkins
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.)
Schlumberger UK Holdings Ltd
Original Assignee
Specialised Petroleum Services Group Ltd
Specialised Petroleum Services 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
Priority claimed from GB0307521A external-priority patent/GB0307521D0/en
Priority claimed from GB0307724A external-priority patent/GB0307724D0/en
Priority claimed from GB0307825A external-priority patent/GB0307825D0/en
Priority claimed from GB0308080A external-priority patent/GB0308080D0/en
Priority to GB0618981A priority Critical patent/GB2428719B/en
Application filed by Specialised Petroleum Services Group Ltd, Specialised Petroleum Services Ltd filed Critical Specialised Petroleum Services Group Ltd
Priority to GB0618980A priority patent/GB2428718B/en
Publication of GB0519788D0 publication Critical patent/GB0519788D0/en
Publication of GB2415725A publication Critical patent/GB2415725A/en
Publication of GB2415725B publication Critical patent/GB2415725B/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/06—Sleeve valves

Abstract

A downhole tool which can perform a task in a well bore, such as circulating fluid radially from the tool. The function is selectively performed by virtue of a sleeve moving within a central bore of the tool. Movement of the sleeve is effected by dropping a ball through a ball seat on the sleeve. Movement of the sleeve is controlled by an index sleeve such that the tool can be cycled back to the first operating position by dropping identical balls through the sleeve. Embodiments are described wherein the balls are deformable, the seat is deformable and the seat provides a helical channel through which the ball passes.

Description

GB 2415725 A continuation (72) Inventor(s): George Telfer Edward Docherty
Scott Rae Andrew Younger James Edward Atkins (74) Agent and/or Address for Service: Kennedys Patent Agency Limited St Vincent Street, GLASGOW, G2 BAD, United Kingdom
GB0519788A 2003-04-01 2004-03-31 Downhole tool Expired - Lifetime GB2415725B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0618980A GB2428718B (en) 2003-04-01 2004-03-31 Actuation Mechanism for Downhole tool
GB0618981A GB2428719B (en) 2003-04-01 2004-03-31 Method of Circulating Fluid in a Borehole

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0307521A GB0307521D0 (en) 2003-04-01 2003-04-01 Downhole tool
GB0307724A GB0307724D0 (en) 2003-04-03 2003-04-03 Improved mechanism for actuation of a downhole tool
GB0307825A GB0307825D0 (en) 2003-04-04 2003-04-04 Mechanism for actuation of a downhole tool
GB0308080A GB0308080D0 (en) 2003-04-08 2003-04-08 Actuating mechanisms for downhole tools
PCT/GB2004/001449 WO2004088091A1 (en) 2003-04-01 2004-03-31 Downhole tool

Publications (3)

Publication Number Publication Date
GB0519788D0 GB0519788D0 (en) 2005-11-09
GB2415725A true GB2415725A (en) 2006-01-04
GB2415725B GB2415725B (en) 2007-09-05

Family

ID=33136071

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0618981A Expired - Fee Related GB2428719B (en) 2003-04-01 2004-03-31 Method of Circulating Fluid in a Borehole
GB0519788A Expired - Lifetime GB2415725B (en) 2003-04-01 2004-03-31 Downhole tool
GB0618980A Expired - Lifetime GB2428718B (en) 2003-04-01 2004-03-31 Actuation Mechanism for Downhole tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0618981A Expired - Fee Related GB2428719B (en) 2003-04-01 2004-03-31 Method of Circulating Fluid in a Borehole

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0618980A Expired - Lifetime GB2428718B (en) 2003-04-01 2004-03-31 Actuation Mechanism for Downhole tool

Country Status (3)

Country Link
US (1) US7416029B2 (en)
GB (3) GB2428719B (en)
WO (1) WO2004088091A1 (en)

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WO2004088091A1 (en) 2004-10-14
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GB2428718B (en) 2007-08-29
GB0618980D0 (en) 2006-11-08

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