EG25117A - Method of sealing an annular space in a wellbore. - Google Patents

Method of sealing an annular space in a wellbore.

Info

Publication number
EG25117A
EG25117A EGNA2007000285A EG25117A EG 25117 A EG25117 A EG 25117A EG NA2007000285 A EGNA2007000285 A EG NA2007000285A EG 25117 A EG25117 A EG 25117A
Authority
EG
Egypt
Prior art keywords
wellbore
sealing
annular space
annular
space
Prior art date
Application number
Other languages
English (en)
Inventor
Bosma Gerard Rene Martin
Erik Kerst Cornelissen
John Alexander Gordon Dewar
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Application granted granted Critical
Publication of EG25117A publication Critical patent/EG25117A/xx

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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C09K8/487—Fluid loss control additives; Additives for reducing or preventing circulation loss
    • 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
    • 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
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0045—Polymers chosen for their physico-chemical characteristics
    • C04B2103/0049—Water-swellable polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sealing Material Composition (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Earth Drilling (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Mechanical Sealing (AREA)
EGNA2007000285 2004-11-18 2007-05-17 Method of sealing an annular space in a wellbore. EG25117A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04105894 2004-11-18
PCT/EP2005/056057 WO2006053896A1 (en) 2004-11-18 2005-11-18 Method of sealing an annular space in a wellbore

Publications (1)

Publication Number Publication Date
EG25117A true EG25117A (en) 2011-09-14

Family

ID=34929887

Family Applications (1)

Application Number Title Priority Date Filing Date
EGNA2007000285 EG25117A (en) 2004-11-18 2007-05-17 Method of sealing an annular space in a wellbore.

Country Status (12)

Country Link
US (1) US7578347B2 (ru)
CN (1) CN101061291B (ru)
AR (1) AR052796A1 (ru)
AU (1) AU2005305801B2 (ru)
BR (1) BRPI0517788A (ru)
CA (1) CA2585498C (ru)
EA (1) EA011961B1 (ru)
EG (1) EG25117A (ru)
GB (1) GB2435764B (ru)
MY (1) MY143661A (ru)
NO (1) NO339839B1 (ru)
WO (1) WO2006053896A1 (ru)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2533424C (en) 2003-07-29 2012-06-12 Shell Canada Limited System for sealing a space in a wellbore
US7607482B2 (en) 2005-09-09 2009-10-27 Halliburton Energy Services, Inc. Settable compositions comprising cement kiln dust and swellable particles
US7341106B2 (en) * 2005-07-21 2008-03-11 Halliburton Energy Services, Inc. Methods for wellbore strengthening and controlling fluid circulation loss
US7543640B2 (en) * 2005-09-01 2009-06-09 Schlumberger Technology Corporation System and method for controlling undesirable fluid incursion during hydrocarbon production
US7607484B2 (en) * 2005-09-09 2009-10-27 Halliburton Energy Services, Inc. Foamed cement compositions comprising oil-swellable particles and methods of use
US7617870B1 (en) * 2008-05-14 2009-11-17 Halliburton Energy Services, Inc. Extended cement compositions comprising oil-swellable particles and associated methods
US7717180B2 (en) 2006-06-29 2010-05-18 Halliburton Energy Services, Inc. Swellable elastomers and associated methods
WO2008062177A1 (en) 2006-11-21 2008-05-29 Swelltec Limited Down hole apparatus and method
GB2444060B (en) * 2006-11-21 2008-12-17 Swelltec Ltd Downhole apparatus and method
GB2459820B (en) * 2007-03-28 2011-11-23 Shell Int Research Wellbore system and method of completing a wellbore
US9199879B2 (en) 2007-05-10 2015-12-01 Halliburton Energy Serives, Inc. Well treatment compositions and methods utilizing nano-particles
US9512351B2 (en) 2007-05-10 2016-12-06 Halliburton Energy Services, Inc. Well treatment fluids and methods utilizing nano-particles
US8685903B2 (en) 2007-05-10 2014-04-01 Halliburton Energy Services, Inc. Lost circulation compositions and associated methods
US8586512B2 (en) 2007-05-10 2013-11-19 Halliburton Energy Services, Inc. Cement compositions and methods utilizing nano-clay
US8476203B2 (en) 2007-05-10 2013-07-02 Halliburton Energy Services, Inc. Cement compositions comprising sub-micron alumina and associated methods
US9206344B2 (en) 2007-05-10 2015-12-08 Halliburton Energy Services, Inc. Sealant compositions and methods utilizing nano-particles
US20100230104A1 (en) * 2007-05-31 2010-09-16 Noelke Rolf-Dieter Method for completing a borehole
EP2229500A1 (en) * 2007-06-21 2010-09-22 Swelltec Limited Apparatus and method with hydrocarbon swellable and water swellable body
US8490699B2 (en) 2007-07-25 2013-07-23 Schlumberger Technology Corporation High solids content slurry methods
US9080440B2 (en) 2007-07-25 2015-07-14 Schlumberger Technology Corporation Proppant pillar placement in a fracture with high solid content fluid
US8490698B2 (en) 2007-07-25 2013-07-23 Schlumberger Technology Corporation High solids content methods and slurries
US9040468B2 (en) 2007-07-25 2015-05-26 Schlumberger Technology Corporation Hydrolyzable particle compositions, treatment fluids and methods
US10011763B2 (en) 2007-07-25 2018-07-03 Schlumberger Technology Corporation Methods to deliver fluids on a well site with variable solids concentration from solid slurries
US8276666B2 (en) 2007-08-08 2012-10-02 Halliburton Energy Services Inc. Sealant compositions and methods of use
US8181708B2 (en) * 2007-10-01 2012-05-22 Baker Hughes Incorporated Water swelling rubber compound for use in reactive packers and other downhole tools
US7878245B2 (en) 2007-10-10 2011-02-01 Halliburton Energy Services Inc. Cement compositions comprising a high-density particulate elastomer and associated methods
GB0719973D0 (en) * 2007-10-12 2007-11-21 Lively Glenn Downhole assembly
US8240377B2 (en) 2007-11-09 2012-08-14 Halliburton Energy Services Inc. Methods of integrating analysis, auto-sealing, and swellable-packer elements for a reliable annular seal
CN101498202B (zh) * 2008-01-31 2014-07-23 普拉德研究及开发股份有限公司 可溶胀的聚合物材料
US7931092B2 (en) 2008-02-13 2011-04-26 Stowe Woodward, L.L.C. Packer element with recesses for downwell packing system and method of its use
US7994257B2 (en) 2008-02-15 2011-08-09 Stowe Woodward, Llc Downwell system with swellable packer element and composition for same
GB0817149D0 (en) * 2008-09-19 2008-10-29 Swellfix Bv Downhole seal
US7934554B2 (en) * 2009-02-03 2011-05-03 Halliburton Energy Services, Inc. Methods and compositions comprising a dual oil/water-swellable particle
US8807216B2 (en) 2009-06-15 2014-08-19 Halliburton Energy Services, Inc. Cement compositions comprising particulate foamed elastomers and associated methods
US8450391B2 (en) 2009-07-29 2013-05-28 Halliburton Energy Services, Inc. Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use
US8623936B2 (en) * 2009-07-29 2014-01-07 Halliburton Energy Services, Inc. Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use
US20110086942A1 (en) * 2009-10-09 2011-04-14 Schlumberger Technology Corporation Reinforced elastomers
US9708523B2 (en) * 2009-10-27 2017-07-18 Halliburton Energy Services, Inc. Swellable spacer fluids and associated methods
US20110220359A1 (en) 2010-03-10 2011-09-15 Soliman Mohamed Y Methods Relating to Modifying Flow Patterns Using In-Situ Barriers
US8662172B2 (en) 2010-04-12 2014-03-04 Schlumberger Technology Corporation Methods to gravel pack a well using expanding materials
EP2404975A1 (en) * 2010-04-20 2012-01-11 Services Pétroliers Schlumberger Composition for well cementing comprising a compounded elastomer swelling additive
GB201009395D0 (en) * 2010-06-04 2010-07-21 Swelltec Ltd Well intervention and control method and apparatus
US8511381B2 (en) 2010-06-30 2013-08-20 Schlumberger Technology Corporation High solids content slurry methods and systems
US20120031612A1 (en) * 2010-08-09 2012-02-09 Weatherford/Lamb, Inc. Swellable Elastomer for Water Shut Off in Gravel Pack
EP2450417B1 (en) 2010-08-17 2016-05-18 Services Pétroliers Schlumberger Self-repairing cements
US20120090857A1 (en) * 2010-10-15 2012-04-19 Baker Hughes Incorporated Swellable Member, Swell Controlling Arrangement and Method of Controlling Swelling of a Swellable Member
EP2457974A1 (en) * 2010-11-05 2012-05-30 Services Pétroliers Schlumberger Cement compositions and methods for well completions
US8607870B2 (en) 2010-11-19 2013-12-17 Schlumberger Technology Corporation Methods to create high conductivity fractures that connect hydraulic fracture networks in a well
US20130269942A1 (en) 2010-12-31 2013-10-17 Shell Internationale Research Maatschappij B.V. Method and system for sealing a void in an underground wellbore
US8490707B2 (en) 2011-01-11 2013-07-23 Schlumberger Technology Corporation Oilfield apparatus and method comprising swellable elastomers
EP2487141B1 (en) 2011-02-11 2015-08-05 Services Pétroliers Schlumberger Self-adaptive cements
EP2518034B1 (en) 2011-02-11 2015-01-07 Services Pétroliers Schlumberger Use of asphaltite-mineral particles in self-adaptive cement for cementing well bores in subterranean formations
EA037172B1 (ru) 2011-05-20 2021-02-15 Эм-Ай Эл. Эл. Си. Скважинный флюид, используемый с разбухающими элементами
US9133387B2 (en) 2011-06-06 2015-09-15 Schlumberger Technology Corporation Methods to improve stability of high solid content fluid
WO2013070082A1 (en) 2011-11-11 2013-05-16 Ruma Products Holding B.V. Use of swellable elastomeric polymer materials
US8967276B2 (en) 2012-01-18 2015-03-03 Baker Hughes Incorporated Non-ballistic tubular perforating system and method
US9863228B2 (en) 2012-03-08 2018-01-09 Schlumberger Technology Corporation System and method for delivering treatment fluid
US9803457B2 (en) 2012-03-08 2017-10-31 Schlumberger Technology Corporation System and method for delivering treatment fluid
BR112014027554A2 (pt) 2012-05-08 2017-06-27 Shell Int Research método e sistema para vedar uma coroa circular
CA3005540C (en) 2012-08-27 2020-03-31 Halliburton Energy Services, Inc. Constructed annular safety valve element package
US20140060836A1 (en) * 2012-09-03 2014-03-06 Fatma Daou Methods for Maintaining Zonal Isolation in A Subterranean Well
US9528354B2 (en) 2012-11-14 2016-12-27 Schlumberger Technology Corporation Downhole tool positioning system and method
CN103015946A (zh) * 2012-12-26 2013-04-03 中煤科工集团重庆研究院 瓦斯抽采钻孔封孔方法
US9605519B2 (en) 2013-07-24 2017-03-28 Baker Hughes Incorporated Non-ballistic tubular perforating system and method
US9388335B2 (en) 2013-07-25 2016-07-12 Schlumberger Technology Corporation Pickering emulsion treatment fluid
GB2518612B (en) 2013-09-25 2020-07-15 Equinor Energy As Method of sealing a well
US9410398B2 (en) 2013-09-27 2016-08-09 Baker Hughes Incorporated Downhole system having compressable and expandable member to cover port and method of displacing cement using member
US9441455B2 (en) 2013-09-27 2016-09-13 Baker Hughes Incorporated Cement masking system and method thereof
US9822295B2 (en) 2013-10-30 2017-11-21 Halliburton Energy Services, Inc. Vulcanized oil and water swellable particulate composite compositions
NO341732B1 (no) 2014-02-18 2018-01-15 Neodrill As Anordning og framgangsmåte for stabilisering av et brønnhode
WO2016003629A1 (en) * 2014-07-02 2016-01-07 Gravity Sand Control Llc. A method of supporting a subterranean conduit
RU2718040C2 (ru) * 2015-08-05 2020-03-30 Шлюмбергер Текнолоджи Б.В. Композиции и способы заканчивания скважин
WO2017023158A1 (en) * 2015-08-05 2017-02-09 Schlumberger Canada Limited Compositions and methods for well completions
CN106639975A (zh) * 2017-02-13 2017-05-10 中国矿业大学 一种高水树脂动态补水封孔方法
AU2017439376B2 (en) 2017-11-13 2023-06-01 Halliburton Energy Services, Inc. Swellable metal for non-elastomeric O-rings, seal stacks, and gaskets
WO2019147285A1 (en) 2018-01-29 2019-08-01 Halliburton Energy Services, Inc. Sealing apparatus with swellable metal
AU2018409809B2 (en) 2018-02-23 2023-09-07 Halliburton Energy Services, Inc. Swellable metal for swell packer
AU2019429892B2 (en) 2019-02-22 2024-05-23 Halliburton Energy Services, Inc. An expanding metal sealant for use with multilateral completion systems
WO2021010989A1 (en) 2019-07-16 2021-01-21 Halliburton Energy Services, Inc. Composite expandable metal elements with reinforcement
US10913885B1 (en) 2019-07-18 2021-02-09 Halliburton Energy Services, Inc. Metal that hydrates in wellbore fluid and creates an expanding cement
WO2021021203A1 (en) 2019-07-31 2021-02-04 Halliburton Energy Services, Inc. Methods to monitor a metallic sealant deployed in a wellbore, methods to monitor fluid displacement, and downhole metallic sealant measurement systems
US10961804B1 (en) 2019-10-16 2021-03-30 Halliburton Energy Services, Inc. Washout prevention element for expandable metal sealing elements
US11519239B2 (en) 2019-10-29 2022-12-06 Halliburton Energy Services, Inc. Running lines through expandable metal sealing elements
US11499399B2 (en) 2019-12-18 2022-11-15 Halliburton Energy Services, Inc. Pressure reducing metal elements for liner hangers
US11761290B2 (en) 2019-12-18 2023-09-19 Halliburton Energy Services, Inc. Reactive metal sealing elements for a liner hanger
US11761293B2 (en) 2020-12-14 2023-09-19 Halliburton Energy Services, Inc. Swellable packer assemblies, downhole packer systems, and methods to seal a wellbore
US11421505B2 (en) 2020-12-16 2022-08-23 Halliburton Energy Services, Inc. Wellbore packer with expandable metal elements
US11572749B2 (en) 2020-12-16 2023-02-07 Halliburton Energy Services, Inc. Non-expanding liner hanger
US11578498B2 (en) 2021-04-12 2023-02-14 Halliburton Energy Services, Inc. Expandable metal for anchoring posts
US11879304B2 (en) 2021-05-17 2024-01-23 Halliburton Energy Services, Inc. Reactive metal for cement assurance
US11808094B2 (en) 2021-09-03 2023-11-07 Saudi Arabian Oil Company Flexi-string for washout below a casing shoe
US11970656B2 (en) * 2021-10-22 2024-04-30 Halliburton Energy Services, Inc. In-situ swelling polymer for wellbore barrier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919989A (en) 1989-04-10 1990-04-24 American Colloid Company Article for sealing well castings in the earth
US5623993A (en) * 1992-08-07 1997-04-29 Baker Hughes Incorporated Method and apparatus for sealing and transfering force in a wellbore
GB2338500B (en) * 1995-05-22 2000-02-16 Baker Hughes Inc Method of sealing and transferring force in a wellbore
US6517732B1 (en) 1995-12-13 2003-02-11 Convergenza Ag Method of removal of air from blood
CA2435382C (en) * 2001-01-26 2007-06-19 E2Tech Limited Device and method to seal boreholes
WO2003002227A1 (en) 2001-06-29 2003-01-09 Black Clawson Company, Inc. High viscosity hydrocyclone for air removal
US6983799B2 (en) * 2003-02-27 2006-01-10 Halliburton Energy Services, Inc. Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation

Also Published As

Publication number Publication date
AU2005305801A1 (en) 2006-05-26
GB2435764A (en) 2007-09-05
EA011961B1 (ru) 2009-06-30
US7578347B2 (en) 2009-08-25
US20080135250A1 (en) 2008-06-12
CN101061291B (zh) 2010-09-01
NO339839B1 (no) 2017-02-06
AU2005305801B2 (en) 2010-02-25
MY143661A (en) 2011-06-30
GB2435764B (en) 2010-03-24
WO2006053896A1 (en) 2006-05-26
BRPI0517788A (pt) 2008-10-21
CA2585498C (en) 2013-10-15
GB0708124D0 (en) 2007-06-06
CN101061291A (zh) 2007-10-24
CA2585498A1 (en) 2006-05-26
EA200701064A1 (ru) 2007-10-26
NO20073087L (no) 2007-06-15
AR052796A1 (es) 2007-04-04

Similar Documents

Publication Publication Date Title
EG25117A (en) Method of sealing an annular space in a wellbore.
GB2413342B (en) Fluid production assembly and method
GB2441731B (en) Seal ring and method
GB2412394B (en) Method for completing a wellbore
GB0517548D0 (en) Large radial movement seal
GB2428057B (en) Method of milling and drilling,and a drilling assembly
WO2006033720A3 (en) Method of expansion
GB2435065B (en) Wellbore drilling and method
GB2436480B (en) Wellhead assembly and method
GB0505783D0 (en) Downhole motor seal and method
GB0710204D0 (en) Method of sealing an annular space in a wellbore
GB2410047B (en) Monobore wellbore and method for completing same
GB2417299B (en) Annular seal
GB2418441B (en) Tubing annulus plug valve
EG26650A (en) Way to operate a ship winch
GB0426967D0 (en) Slurrification method
GB0422378D0 (en) A method
GB0410103D0 (en) New method
GB0413684D0 (en) Connection method
ZA200502582B (en) Method of drilling.
GB2402958B (en) Methods of sealing an annular space in a well
NO20040376L (no) Fremgangsmate for a gjennomfore blivende metall-til-metall-plugging.
GB0422586D0 (en) Sealing ring
GB0416641D0 (en) A method of packing objects into a specified area
GB0422897D0 (en) Deep seal