EP0188343A3 - Stabilising tool - Google Patents

Stabilising tool Download PDF

Info

Publication number
EP0188343A3
EP0188343A3 EP86300163A EP86300163A EP0188343A3 EP 0188343 A3 EP0188343 A3 EP 0188343A3 EP 86300163 A EP86300163 A EP 86300163A EP 86300163 A EP86300163 A EP 86300163A EP 0188343 A3 EP0188343 A3 EP 0188343A3
Authority
EP
European Patent Office
Prior art keywords
tool
stabilising
shank
cap
flutes
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.)
Withdrawn
Application number
EP86300163A
Other languages
German (de)
French (fr)
Other versions
EP0188343A2 (en
Inventor
Arthur Stewart
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.)
Stable Services Ltd
Original Assignee
Stable 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
Application filed by Stable Services Ltd filed Critical Stable Services Ltd
Publication of EP0188343A2 publication Critical patent/EP0188343A2/en
Publication of EP0188343A3 publication Critical patent/EP0188343A3/en
Withdrawn legal-status Critical Current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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism

Abstract

A stabiliser tool for connection in a drill string having a fluted stabilising portion comprising a body part (16) integral with the shank (10) of the tool and a leading end sleeve part or cap (18) removably secured to the shank. The cap (18) can readily by replaced when worn. The tool may be suppled as a set including different interchangeable caps having for example, spiral flutes (22) for normal stabilising operation, or straight flutes to enable the tool to be used as a reamer when drilling rough and abrasive rock formations.
EP86300163A 1985-01-18 1986-01-13 Stabilising tool Withdrawn EP0188343A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858501256A GB8501256D0 (en) 1985-01-18 1985-01-18 Stabilizing tool
GB8501256 1985-01-18

Publications (2)

Publication Number Publication Date
EP0188343A2 EP0188343A2 (en) 1986-07-23
EP0188343A3 true EP0188343A3 (en) 1987-08-05

Family

ID=10573030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86300163A Withdrawn EP0188343A3 (en) 1985-01-18 1986-01-13 Stabilising tool

Country Status (6)

Country Link
EP (1) EP0188343A3 (en)
DK (1) DK22186A (en)
ES (1) ES296679Y (en)
FI (1) FI860237A (en)
GB (1) GB8501256D0 (en)
NO (1) NO860143L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483631A (en) * 1945-10-12 1949-10-04 Charles J Fashing Small game suspending device
GB8908014D0 (en) * 1989-04-10 1989-05-24 Smith Int North Sea A milling tool stabiliser
GB9101921D0 (en) * 1991-01-29 1991-03-13 Stable Services Ltd Stabilising tool
EP3234299B1 (en) * 2014-12-16 2021-12-15 Sumrall, Ernest Newton Borehole conditioning tools

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642079A (en) * 1970-06-23 1972-02-15 Servco Co Multisleeve stabilizer
FR2171061A1 (en) * 1972-02-02 1973-09-21 Christensen Diamond Prod Co
US3933395A (en) * 1973-12-13 1976-01-20 Reamco, Inc. Stabilizer
US4380264A (en) * 1980-12-24 1983-04-19 Drilling Development, Inc. Survey tool string
GB2133059A (en) * 1982-11-24 1984-07-18 Groom International Limited Drilling tools
GB2166177A (en) * 1984-10-26 1986-04-30 Metal X Corp Of Texas Sleeve-type stabilizer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642079A (en) * 1970-06-23 1972-02-15 Servco Co Multisleeve stabilizer
FR2171061A1 (en) * 1972-02-02 1973-09-21 Christensen Diamond Prod Co
US3933395A (en) * 1973-12-13 1976-01-20 Reamco, Inc. Stabilizer
US4380264A (en) * 1980-12-24 1983-04-19 Drilling Development, Inc. Survey tool string
GB2133059A (en) * 1982-11-24 1984-07-18 Groom International Limited Drilling tools
GB2166177A (en) * 1984-10-26 1986-04-30 Metal X Corp Of Texas Sleeve-type stabilizer

Also Published As

Publication number Publication date
FI860237A0 (en) 1986-01-17
ES296679U (en) 1987-12-16
DK22186A (en) 1986-07-19
EP0188343A2 (en) 1986-07-23
GB8501256D0 (en) 1985-02-20
NO860143L (en) 1986-07-21
FI860237A (en) 1986-07-19
DK22186D0 (en) 1986-01-17
ES296679Y (en) 1988-05-16

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Inventor name: STEWART, ARTHUR