DE3543295A1 - Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern - Google Patents

Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern

Info

Publication number
DE3543295A1
DE3543295A1 DE19853543295 DE3543295A DE3543295A1 DE 3543295 A1 DE3543295 A1 DE 3543295A1 DE 19853543295 DE19853543295 DE 19853543295 DE 3543295 A DE3543295 A DE 3543295A DE 3543295 A1 DE3543295 A1 DE 3543295A1
Authority
DE
Germany
Prior art keywords
catching tool
tool according
permanent magnets
mandrel body
catching
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
DE19853543295
Other languages
German (de)
English (en)
Other versions
DE3543295C2 (enExample
Inventor
Alfred Ostertag
Friedhelm Havenstein
Hans J Weisser
Gabor Szabo
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.)
Baker Hughes Holdings LLC
Original Assignee
Christensen Inc
Norton Christensen Inc
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 Christensen Inc, Norton Christensen Inc filed Critical Christensen Inc
Priority to DE19853543295 priority Critical patent/DE3543295A1/de
Publication of DE3543295A1 publication Critical patent/DE3543295A1/de
Application granted granted Critical
Publication of DE3543295C2 publication Critical patent/DE3543295C2/de
Granted 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means

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)
  • Marine Sciences & Fisheries (AREA)
  • Earth Drilling (AREA)
DE19853543295 1985-12-07 1985-12-07 Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern Granted DE3543295A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853543295 DE3543295A1 (de) 1985-12-07 1985-12-07 Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853543295 DE3543295A1 (de) 1985-12-07 1985-12-07 Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern

Publications (2)

Publication Number Publication Date
DE3543295A1 true DE3543295A1 (de) 1987-06-25
DE3543295C2 DE3543295C2 (enExample) 1988-12-01

Family

ID=6287895

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853543295 Granted DE3543295A1 (de) 1985-12-07 1985-12-07 Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern

Country Status (1)

Country Link
DE (1) DE3543295A1 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350632B (en) * 1999-05-29 2003-10-15 Specialised Petroleum Serv Ltd Magnetic well cleaning apparatus
WO2007136667A1 (en) * 2006-05-17 2007-11-29 Bj Services Company Downhole activated packer plug magnetic debris tool
US7753114B1 (en) 2008-05-01 2010-07-13 Penisson Dennis J Magnetic wellbore cleaning tool
WO2011095816A3 (en) * 2010-02-05 2012-03-01 M-I Drilling Fluids U.K. Limited Improved downhole tool and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1167537A (fr) * 1955-11-02 1958-11-26 Neyrpic Ets Outil magnétique de repêchage pour sondages
US2965406A (en) * 1960-12-20 Magnetic drill joint
US3089724A (en) * 1960-12-05 1963-05-14 Sentinel Oil Tool Dev & Servic Magnetic junk sub
DE1184302B (de) * 1963-05-02 1964-12-31 Sentinel Oil Tool Dev & Servic Magnetischer Bohrgutfaenger fuer Erdbohrer
DE2002575A1 (de) * 1969-01-22 1970-07-30 William Mayall Bohrvorrichtung
DE3129682C1 (de) * 1981-07-28 1983-01-27 Johannes 3101 Nienhof Biesterfeld Fangwerkzeug mit ringförmigen Permanentmagneten, Bürsten und Fangkorb

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965406A (en) * 1960-12-20 Magnetic drill joint
FR1167537A (fr) * 1955-11-02 1958-11-26 Neyrpic Ets Outil magnétique de repêchage pour sondages
US3089724A (en) * 1960-12-05 1963-05-14 Sentinel Oil Tool Dev & Servic Magnetic junk sub
DE1184302B (de) * 1963-05-02 1964-12-31 Sentinel Oil Tool Dev & Servic Magnetischer Bohrgutfaenger fuer Erdbohrer
DE2002575A1 (de) * 1969-01-22 1970-07-30 William Mayall Bohrvorrichtung
DE3129682C1 (de) * 1981-07-28 1983-01-27 Johannes 3101 Nienhof Biesterfeld Fangwerkzeug mit ringförmigen Permanentmagneten, Bürsten und Fangkorb

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350632B (en) * 1999-05-29 2003-10-15 Specialised Petroleum Serv Ltd Magnetic well cleaning apparatus
US6655462B1 (en) * 1999-05-29 2003-12-02 Sps-Afos International Limited Magnetic well cleaning apparatus
WO2007136667A1 (en) * 2006-05-17 2007-11-29 Bj Services Company Downhole activated packer plug magnetic debris tool
US7753114B1 (en) 2008-05-01 2010-07-13 Penisson Dennis J Magnetic wellbore cleaning tool
WO2011095816A3 (en) * 2010-02-05 2012-03-01 M-I Drilling Fluids U.K. Limited Improved downhole tool and method
GB2489901A (en) * 2010-02-05 2012-10-10 M I Drilling Fluids Uk Ltd Improved downhole tool and method
GB2489901B (en) * 2010-02-05 2015-10-14 M I Drilling Fluids Uk Ltd Improved downhole tool and method
US9260941B2 (en) 2010-02-05 2016-02-16 M-I Drilling Fluids Uk Limited Downhole tool and method

Also Published As

Publication number Publication date
DE3543295C2 (enExample) 1988-12-01

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BAKER HUGHES INC. (N.D.GES.D.STAATES DELAWARE), HO

8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8328 Change in the person/name/address of the agent

Free format text: BUSSE, V., DIPL.-WIRTSCH.-ING. DR.JUR. BUSSE, D., DIPL.-ING. BUENEMANN, E., DIPL.-ING. POTT, U., DIPL.-ING., PAT.-ANWAELTE, 49084 OSNABRUECK

8339 Ceased/non-payment of the annual fee