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CA2219206A1 - Activating means for drilling apparatus - Google Patents

Activating means for drilling apparatus

Info

Publication number
CA2219206A1
CA2219206A1 CA002219206A CA2219206A CA2219206A1 CA 2219206 A1 CA2219206 A1 CA 2219206A1 CA 002219206 A CA002219206 A CA 002219206A CA 2219206 A CA2219206 A CA 2219206A CA 2219206 A1 CA2219206 A1 CA 2219206A1
Authority
CA
Canada
Prior art keywords
activating means
magnet
drilling apparatus
activating
active position
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
CA002219206A
Other languages
French (fr)
Other versions
CA2219206C (en
Inventor
George Telfer
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
Individual
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 GBGB9510923.7A external-priority patent/GB9510923D0/en
Priority claimed from GBGB9515419.1A external-priority patent/GB9515419D0/en
Application filed by Individual filed Critical Individual
Priority claimed from PCT/GB1996/001275 external-priority patent/WO1996038649A2/en
Publication of CA2219206A1 publication Critical patent/CA2219206A1/en
Application granted granted Critical
Publication of CA2219206C publication Critical patent/CA2219206C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

An activating means for activating a down-hole tool incorporates a magnet, which may include an attracting magnet (12) and a repelling magnet (13), and which may move under hydraulic pressure from an active position at which it causes a trigger, valve (8) or spring to be energised to a non active position at which the tool is not activated, the activating means thereby utilising hydraulic pressure without requiring hydraulic ports in the liner or mandrel.
CA002219206A 1995-05-31 1996-05-30 Activating means for drilling apparatus Expired - Lifetime CA2219206C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9510923.7 1995-05-31
GBGB9510923.7A GB9510923D0 (en) 1995-05-31 1995-05-31 Liner hanger apparatus
GB9515419.1 1995-07-27
GBGB9515419.1A GB9515419D0 (en) 1995-07-27 1995-07-27 Activating means for drilling apparatus
PCT/GB1996/001275 WO1996038649A2 (en) 1995-05-31 1996-05-30 Activating means for a down-hole tool

Publications (2)

Publication Number Publication Date
CA2219206A1 true CA2219206A1 (en) 1996-12-05
CA2219206C CA2219206C (en) 2007-07-10

Family

ID=38254927

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002219206A Expired - Lifetime CA2219206C (en) 1995-05-31 1996-05-30 Activating means for drilling apparatus

Country Status (1)

Country Link
CA (1) CA2219206C (en)

Also Published As

Publication number Publication date
CA2219206C (en) 2007-07-10

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160530

MKEX Expiry

Effective date: 20160530