DE69919906D1 - Einzelventil für eine vorrichtung zur befüllung von futterrohren sowie zirkulation - Google Patents

Einzelventil für eine vorrichtung zur befüllung von futterrohren sowie zirkulation

Info

Publication number
DE69919906D1
DE69919906D1 DE69919906T DE69919906T DE69919906D1 DE 69919906 D1 DE69919906 D1 DE 69919906D1 DE 69919906 T DE69919906 T DE 69919906T DE 69919906 T DE69919906 T DE 69919906T DE 69919906 D1 DE69919906 D1 DE 69919906D1
Authority
DE
Germany
Prior art keywords
casing
valve
circulation
filling
open 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.)
Expired - Lifetime
Application number
DE69919906T
Other languages
English (en)
Other versions
DE69919906T2 (de
Inventor
Albert Augustus Mullins
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.)
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69919906D1 publication Critical patent/DE69919906D1/de
Publication of DE69919906T2 publication Critical patent/DE69919906T2/de
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
    • 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
    • E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves
    • 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
    • E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Taps Or Cocks (AREA)
  • Pipeline Systems (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
DE69919906T 1999-02-09 1999-11-12 Einzelventil für eine vorrichtung zur befüllung von futterrohren sowie zirkulation Expired - Lifetime DE69919906T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US249568 1999-02-09
US09/249,568 US6173777B1 (en) 1999-02-09 1999-02-09 Single valve for a casing filling and circulating apparatus
PCT/US1999/026921 WO2000047865A1 (en) 1999-02-09 1999-11-12 Single valve for a casing filling and circulating apparatus

Publications (2)

Publication Number Publication Date
DE69919906D1 true DE69919906D1 (de) 2004-10-07
DE69919906T2 DE69919906T2 (de) 2005-09-01

Family

ID=22944059

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69919906T Expired - Lifetime DE69919906T2 (de) 1999-02-09 1999-11-12 Einzelventil für eine vorrichtung zur befüllung von futterrohren sowie zirkulation

Country Status (7)

Country Link
US (1) US6173777B1 (de)
EP (1) EP1159509B1 (de)
AT (1) ATE275237T1 (de)
DE (1) DE69919906T2 (de)
DK (1) DK1159509T3 (de)
NO (1) NO326205B1 (de)
WO (1) WO2000047865A1 (de)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7040420B2 (en) * 1994-10-14 2006-05-09 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6868906B1 (en) * 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US7228901B2 (en) * 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7100710B2 (en) * 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7147068B2 (en) * 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) * 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6742596B2 (en) 2001-05-17 2004-06-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US6536520B1 (en) * 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
GB9815809D0 (en) * 1998-07-22 1998-09-16 Appleton Robert P Casing running tool
GB2340857A (en) * 1998-08-24 2000-03-01 Weatherford Lamb An apparatus for facilitating the connection of tubulars and alignment with a top drive
CA2356194C (en) * 1998-12-22 2007-02-27 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US7188687B2 (en) * 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
GB2345074A (en) * 1998-12-24 2000-06-28 Weatherford Lamb Floating joint to facilitate the connection of tubulars using a top drive
GB2347441B (en) * 1998-12-24 2003-03-05 Weatherford Lamb Apparatus and method for facilitating the connection of tubulars using a top drive
US6896075B2 (en) * 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US7311148B2 (en) * 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
DE60030159D1 (de) * 1999-12-22 2006-09-28 Weatherford Lamb Bohrmeissel zum gleichzeitigen bohren und verrohren
US7334650B2 (en) * 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7325610B2 (en) * 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
GB0010378D0 (en) * 2000-04-28 2000-06-14 Bbl Downhole Tools Ltd Expandable apparatus for drift and reaming a borehole
US6758273B2 (en) * 2000-06-16 2004-07-06 Richard B. Learned Low-flow groundwater sampling system
GB2365463B (en) * 2000-08-01 2005-02-16 Renovus Ltd Drilling method
US6810958B2 (en) 2001-12-20 2004-11-02 Halliburton Energy Services, Inc. Circulating cementing collar and method
GB0206227D0 (en) * 2002-03-16 2002-05-01 Weatherford Lamb Bore-lining and drilling
US6832656B2 (en) * 2002-06-26 2004-12-21 Weartherford/Lamb, Inc. Valve for an internal fill up tool and associated method
US6994176B2 (en) * 2002-07-29 2006-02-07 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US6899186B2 (en) * 2002-12-13 2005-05-31 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7303022B2 (en) * 2002-10-11 2007-12-04 Weatherford/Lamb, Inc. Wired casing
US7128154B2 (en) * 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
GB2414502B (en) * 2003-02-27 2007-10-17 Weatherford Lamb Drill shoe
US7874352B2 (en) * 2003-03-05 2011-01-25 Weatherford/Lamb, Inc. Apparatus for gripping a tubular on a drilling rig
GB2415723B (en) * 2003-03-05 2006-12-13 Weatherford Lamb Method and apparatus for drilling with casing
US7413020B2 (en) * 2003-03-05 2008-08-19 Weatherford/Lamb, Inc. Full bore lined wellbores
CA2517895C (en) * 2003-03-05 2009-12-01 Weatherford/Lamb, Inc. Casing running and drilling system
GB2416360B (en) * 2003-03-05 2007-08-22 Weatherford Lamb Drilling with casing latch
US7503397B2 (en) * 2004-07-30 2009-03-17 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
GB2414759B (en) * 2003-04-04 2007-11-07 Weatherford Lamb Method and apparatus for handling wellbore tubulars
US6978844B2 (en) * 2003-07-03 2005-12-27 Lafleur Petroleum Services, Inc. Filling and circulating apparatus for subsurface exploration
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7264067B2 (en) * 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
ATE512280T1 (de) * 2004-03-19 2011-06-15 Tesco Corp Speerartiger bohrlochschieber
DE602005006198T2 (de) * 2004-07-20 2009-07-09 Weatherford/Lamb, Inc., Houston Oberantrieb zur Verbindung von Futterrohren
GB2422162B (en) 2005-01-12 2009-08-19 Weatherford Lamb One-position fill-up and circulating tool
CA2533115C (en) * 2005-01-18 2010-06-08 Weatherford/Lamb, Inc. Top drive torque booster
DK1888871T3 (da) 2005-06-10 2011-11-28 Albert Augustus Mullins Opfyldnings- og cirkulationsapparatur til forings- og borerør
US8006753B2 (en) * 2006-02-08 2011-08-30 Pilot Drilling Control Limited Hydraulic connector apparatuses and methods of use with downhole tubulars
US20090200038A1 (en) * 2006-02-08 2009-08-13 Pilot Drilling Control Limited Hydraulic connector apparatuses and methods of use with downhole tubulars
US8047278B2 (en) * 2006-02-08 2011-11-01 Pilot Drilling Control Limited Hydraulic connector apparatuses and methods of use with downhole tubulars
GB2435059B (en) * 2006-02-08 2008-05-07 Pilot Drilling Control Ltd A Drill-String Connector
US8002028B2 (en) * 2006-02-08 2011-08-23 Pilot Drilling Control Limited Hydraulic connector apparatuses and methods of use with downhole tubulars
NO324746B1 (no) * 2006-03-23 2007-12-03 Peak Well Solutions As Verktoy for fylling, sirkulering og tilbakestromning av fluider i en bronn
US7703512B2 (en) * 2006-03-29 2010-04-27 Schlumberger Technology Corporation Packer cup systems for use inside a wellbore
US7735568B2 (en) * 2006-03-29 2010-06-15 Schlumberger Technology Corporation Packer cup systems for use inside a wellbore
US7434617B2 (en) * 2006-04-05 2008-10-14 Stinger Wellhead Protection, Inc. Cup tool with three-part packoff for a high pressure mandrel
CA2586317C (en) * 2006-04-27 2012-04-03 Weatherford/Lamb, Inc. Torque sub for use with top drive
GB0611711D0 (en) * 2006-06-14 2006-07-26 Churchill Drilling Tools Ltd Top filling tubing
US7882902B2 (en) * 2006-11-17 2011-02-08 Weatherford/Lamb, Inc. Top drive interlock
CA3023707C (en) 2007-12-12 2021-04-20 Weatherford Technology Holdings, Llc Top drive system
WO2009114625A2 (en) * 2008-03-11 2009-09-17 Weatherford/Lamb, Inc. Flowback tool
CA2722719C (en) * 2008-05-02 2014-04-22 Weatherford/Lamb, Inc. Fill up and circulation tool and mudsaver valve
US20100051290A1 (en) * 2008-08-31 2010-03-04 Williford Randall S Pressure Actuated Piston Type Casing Fill-up Valve and Methods of Use Thereof
US9187967B2 (en) 2011-12-14 2015-11-17 2M-Tek, Inc. Fluid safety valve
US8833471B2 (en) 2010-08-09 2014-09-16 Weatherford/Lamb, Inc. Fill up tool
WO2012100019A1 (en) 2011-01-21 2012-07-26 2M-Tek, Inc. Tubular running device and method
US9045964B2 (en) 2012-09-11 2015-06-02 Geyel Valenzuela Apparatus, methods, and systems for filling and circulating fluid in tubular members
US9416601B2 (en) 2013-10-17 2016-08-16 DrawWorks LLP Top drive operated casing running tool
US9896891B2 (en) 2013-10-17 2018-02-20 DrawWorks LP Top drive operated casing running tool
US9677350B2 (en) 2013-11-11 2017-06-13 Canrig Drilling Technology Ltd. Fill up and circulation tool and method of operating
US10465457B2 (en) 2015-08-11 2019-11-05 Weatherford Technology Holdings, Llc Tool detection and alignment for tool installation
US10626683B2 (en) 2015-08-11 2020-04-21 Weatherford Technology Holdings, Llc Tool identification
CA2995483C (en) 2015-08-20 2023-03-14 Weatherford Technology Holdings, Llc Top drive torque measurement device
US10323484B2 (en) 2015-09-04 2019-06-18 Weatherford Technology Holdings, Llc Combined multi-coupler for a top drive and a method for using the same for constructing a wellbore
WO2017044482A1 (en) 2015-09-08 2017-03-16 Weatherford Technology Holdings, Llc Genset for top drive unit
US10590744B2 (en) 2015-09-10 2020-03-17 Weatherford Technology Holdings, Llc Modular connection system for top drive
US10167671B2 (en) 2016-01-22 2019-01-01 Weatherford Technology Holdings, Llc Power supply for a top drive
US11162309B2 (en) 2016-01-25 2021-11-02 Weatherford Technology Holdings, Llc Compensated top drive unit and elevator links
WO2017168171A1 (en) * 2016-03-31 2017-10-05 Churchill Drilling Tools Limited Tubing coupling
US10287830B2 (en) 2016-11-14 2019-05-14 Frank's International, Llc Combined casing and drill-pipe fill-up, flow-back and circulation tool
US10704364B2 (en) 2017-02-27 2020-07-07 Weatherford Technology Holdings, Llc Coupler with threaded connection for pipe handler
US10954753B2 (en) 2017-02-28 2021-03-23 Weatherford Technology Holdings, Llc Tool coupler with rotating coupling method for top drive
US10480247B2 (en) 2017-03-02 2019-11-19 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating fixations for top drive
US11131151B2 (en) 2017-03-02 2021-09-28 Weatherford Technology Holdings, Llc Tool coupler with sliding coupling members for top drive
US10443326B2 (en) 2017-03-09 2019-10-15 Weatherford Technology Holdings, Llc Combined multi-coupler
US10247246B2 (en) 2017-03-13 2019-04-02 Weatherford Technology Holdings, Llc Tool coupler with threaded connection for top drive
US10711574B2 (en) 2017-05-26 2020-07-14 Weatherford Technology Holdings, Llc Interchangeable swivel combined multicoupler
US10544631B2 (en) 2017-06-19 2020-01-28 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
US10526852B2 (en) 2017-06-19 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler with locking clamp connection for top drive
US10355403B2 (en) 2017-07-21 2019-07-16 Weatherford Technology Holdings, Llc Tool coupler for use with a top drive
US10527104B2 (en) 2017-07-21 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
US10745978B2 (en) 2017-08-07 2020-08-18 Weatherford Technology Holdings, Llc Downhole tool coupling system
US11047175B2 (en) 2017-09-29 2021-06-29 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating locking method for top drive
US11441412B2 (en) 2017-10-11 2022-09-13 Weatherford Technology Holdings, Llc Tool coupler with data and signal transfer methods for top drive
US10385632B1 (en) 2018-04-20 2019-08-20 Drawworks, L.P. Casing grapple
MX2021001718A (es) * 2018-08-15 2021-07-15 Smarthose As Método y dispositivo para suministrar líquido a una tubería de revestimiento corta.

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1662311A (en) 1923-04-04 1928-03-13 Leland S Hamer Well-capping device
US1866726A (en) 1929-09-20 1932-07-12 Grant John Casing head
US2223388A (en) 1939-10-28 1940-12-03 Oil Equipment Engineering Corp Cementing head
US2620037A (en) 1951-07-02 1952-12-02 Halliburton Oil Well Cementing Cementing head
US3361453A (en) 1965-07-02 1968-01-02 Brown Oil Tools Quick coupling device
US3863716A (en) 1974-04-05 1975-02-04 Halliburton Co Cementing plug release assist apparatus
US3915226A (en) 1974-10-11 1975-10-28 Halliburton Co Double collet release mechanism
US4076083A (en) 1975-11-24 1978-02-28 Otis Engineering Corporation Method and apparatus for controlling a well during drilling operations
US4100968A (en) 1976-08-30 1978-07-18 Charles George Delano Technique for running casing
US4246967A (en) 1979-07-26 1981-01-27 The Dow Chemical Company Cementing head apparatus and method of operation
US4290482A (en) 1980-04-29 1981-09-22 Halliburton Company Plug container
US4522430A (en) 1981-02-27 1985-06-11 Halliburton Company Quick connect coupler
US4624483A (en) 1981-08-26 1986-11-25 Halliburton Company Quick connect coupler
US4524998A (en) 1982-05-04 1985-06-25 Halliburton Company Tubular connecting device
US4566168A (en) 1985-01-09 1986-01-28 Halliburton Company Quick connect adapter
US4655286A (en) 1985-02-19 1987-04-07 Ctc Corporation Method for cementing casing or liners in an oil well
US4718495A (en) 1986-05-08 1988-01-12 Halliburton Company Surface packer and method for using the same
US4889199A (en) 1987-05-27 1989-12-26 Lee Paul B Downhole valve for use when drilling an oil or gas well
US4817724A (en) 1988-08-19 1989-04-04 Vetco Gray Inc. Diverter system test tool and method
US4913231A (en) 1988-12-09 1990-04-03 Dowell Schlumberger Tool for treating subterranean wells
US5044444A (en) 1989-04-28 1991-09-03 Baker Hughes Incorporated Method and apparatus for chemical treatment of subterranean well bores
US5191939A (en) 1990-01-03 1993-03-09 Tam International Casing circulator and method
US4997042A (en) 1990-01-03 1991-03-05 Jordan Ronald A Casing circulator and method
US5152554A (en) 1990-12-18 1992-10-06 Lafleur Petroleum Services, Inc. Coupling apparatus
NO173750C (no) 1991-09-30 1994-01-26 Wepco As Sirkulasjonsutstyr
US5236035A (en) 1992-02-13 1993-08-17 Halliburton Company Swivel cementing head with manifold assembly
US5413171A (en) 1992-05-01 1995-05-09 Downhole Systems, Inc. Latching and sealing assembly
US5249629A (en) 1992-09-28 1993-10-05 Abb Vetco Gray Inc. Full bore casing hanger running tool
US5411095A (en) 1993-03-29 1995-05-02 Davis-Lynch, Inc. Apparatus for cementing a casing string
US5435390A (en) 1993-05-27 1995-07-25 Baker Hughes Incorporated Remote control for a plug-dropping head
US5441310A (en) 1994-03-04 1995-08-15 Fmc Corporation Cement head quick connector
US5443122A (en) 1994-08-05 1995-08-22 Halliburton Company Plug container with fluid pressure responsive cleanout
US5577566A (en) 1995-08-09 1996-11-26 Weatherford U.S., Inc. Releasing tool
US5501280A (en) 1994-10-27 1996-03-26 Halliburton Company Casing filling and circulating apparatus and method
US5553667A (en) 1995-04-26 1996-09-10 Weatherford U.S., Inc. Cementing system
US5584343A (en) 1995-04-28 1996-12-17 Davis-Lynch, Inc. Method and apparatus for filling and circulating fluid in a wellbore during casing running operations
US5641021A (en) 1995-11-15 1997-06-24 Halliburton Energy Services Well casing fill apparatus and method
US5660234A (en) 1996-02-01 1997-08-26 Abb Vetco Gray Inc. Shallow flow wellhead system
US5735348A (en) 1996-10-04 1998-04-07 Frank's International, Inc. Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing

Also Published As

Publication number Publication date
EP1159509A4 (de) 2003-02-12
NO326205B1 (no) 2008-10-20
EP1159509B1 (de) 2004-09-01
US6173777B1 (en) 2001-01-16
NO20013895L (no) 2001-10-04
DK1159509T3 (da) 2005-01-10
ATE275237T1 (de) 2004-09-15
DE69919906T2 (de) 2005-09-01
EP1159509A1 (de) 2001-12-05
NO20013895D0 (no) 2001-08-09
WO2000047865A1 (en) 2000-08-17

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Legal Events

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