BR0108418A - A method for drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore, and stimulus treatment system, and apparatus for use in drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore. borehole. - Google Patents

A method for drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore, and stimulus treatment system, and apparatus for use in drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore. borehole.

Info

Publication number
BR0108418A
BR0108418A BR0108418-6A BR0108418A BR0108418A BR 0108418 A BR0108418 A BR 0108418A BR 0108418 A BR0108418 A BR 0108418A BR 0108418 A BR0108418 A BR 0108418A
Authority
BR
Brazil
Prior art keywords
wellbore
drilling
intercepted
treating multiple
underground formations
Prior art date
Application number
BR0108418-6A
Other languages
Portuguese (pt)
Other versions
BR0108418B1 (en
Inventor
Randy C Tolman
Lawrence O Carlson
David A Kinison
Kris J Nygaard
Glenn S Goss
William A Sorem
Lee I Shafer
Original Assignee
Exxonmobil Upstream Res Co
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 Exxonmobil Upstream Res Co filed Critical Exxonmobil Upstream Res Co
Publication of BR0108418A publication Critical patent/BR0108418A/en
Publication of BR0108418B1 publication Critical patent/BR0108418B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/001Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/14Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14Obtaining from a multiple-zone well
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Massaging Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Pipe Accessories (AREA)
  • Soil Working Implements (AREA)
  • Making Paper Articles (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

"MéTODO PARA PERFURAR E TRATAR MúLTIPLOS INTERVALOS DE UMA OU MAIS FORMAçõES SUBTERR‰NEAS INTERCEPTADAS POR UM FURO DE POçO, E, SISTEMA DE TRATAMENTO POR ESTìMULO, E APARELHO PARA USO NA PERFURAçãO E TRATAMENTO DE MúLTIPLOS INTERVALOS DE UMA OU MAIS FORMAçõES SUBTERR‰NEAS INTERCEPTADAS POR UM FURO DE POçO". A invenção provê um aparelho e método para perfurar e tratar múltiplos intervalos de uma ou mais formações subterrâneas (86) interceptadas por um furo de poço pelo desenvolvimento de uma montagem de furo de fundo tendo um dispositivo de perfuração (134) e pelo menos um mecanismo de vedação (120) dentro do mencionado furo de poço. O dispositivo de perfuração (134) é usado para perfurar o primeiro intervalo a ser tratado. Depois, a montagem de furo de fundo é posicionada dentro do furo de poço de modo que o mecanismo de vedação (120), quando atuado, estabeleça uma vedação hidráulica no furo de poço para forçar positivamente o fluido entrar nas perfurações (230, 231) correspondentes ao primeiro intervalo a ser tratado. Um fluido de tratamento é, depois, bombeado pelo furo de poço e para as perfurações (230, 231) criadas no intervalo perfurado. O mecanismo de vedação (120) é liberado, e as etapas são, depois, repetidas por tantos intervalos quantos desejados, sem remover a montagem de furo de fundo do mencionado furo de poço."METHOD FOR DRILLING AND HANDLING MULTIPLE INTERVALS OF ONE OR MORE SUBMERGIAL FORMATIONS INTERCEPTED BY A WELL HOLE, AND STIMULUS TREATMENT SYSTEM, AND APPARATUS FOR USE IN MULTIPLE OR INTERVAL MACHINES AND DRILLING INTERCEPTED BY A HOLE ". The invention provides an apparatus and method for drilling and treating multiple intervals of one or more underground formations (86) intercepted by a wellbore by developing a bottom hole assembly having a drilling device (134) and at least one mechanism. (120) inside said well bore. The piercing device 134 is used to pierce the first gap to be treated. The bottom hole assembly is then positioned within the wellbore so that the sealing mechanism (120), when actuated, provides a hydraulic seal in the wellbore to positively force fluid into the boreholes (230, 231). corresponding to the first interval to be treated. A treatment fluid is then pumped through the wellbore and into the bores (230, 231) created in the borehole. The sealing mechanism (120) is released, and the steps are then repeated for as many intervals as desired without removing the bottom hole assembly from said well hole.

BRPI0108418-6A 2000-02-15 2001-02-14 A method for drilling and treating multiple intervals of one or more underground formations intercepted by a wellbore, and apparatus for use in drilling and treating multiple intervals of one or more underground formations intercepted by a wellbore. BR0108418B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US18268700P 2000-02-15 2000-02-15
US24425800P 2000-10-30 2000-10-30
PCT/US2001/004635 WO2001061146A1 (en) 2000-02-15 2001-02-14 Method and apparatus for stimulation of multiple formation intervals

Publications (2)

Publication Number Publication Date
BR0108418A true BR0108418A (en) 2004-01-06
BR0108418B1 BR0108418B1 (en) 2010-06-29

Family

ID=26878314

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0108418-6A BR0108418B1 (en) 2000-02-15 2001-02-14 A method for drilling and treating multiple intervals of one or more underground formations intercepted by a wellbore, and apparatus for use in drilling and treating multiple intervals of one or more underground formations intercepted by a wellbore.

Country Status (21)

Country Link
EP (2) EP1264075B1 (en)
CN (1) CN1281846C (en)
AR (1) AR027331A1 (en)
AU (2) AU3697801A (en)
BR (1) BR0108418B1 (en)
CA (1) CA2397460C (en)
CO (1) CO5300472A1 (en)
DK (1) DK2282002T3 (en)
DZ (1) DZ3378A1 (en)
EA (1) EA004100B1 (en)
EG (1) EG23117A (en)
MX (1) MXPA02007728A (en)
MY (1) MY132567A (en)
NO (1) NO330514B1 (en)
NZ (1) NZ520310A (en)
OA (1) OA12171A (en)
PE (1) PE20011019A1 (en)
PL (1) PL196155B1 (en)
RO (1) RO121145B1 (en)
TN (1) TNSN01026A1 (en)
WO (1) WO2001061146A1 (en)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6688389B2 (en) * 2001-10-12 2004-02-10 Halliburton Energy Services, Inc. Apparatus and method for locating joints in coiled tubing operations
US10316616B2 (en) * 2004-05-28 2019-06-11 Schlumberger Technology Corporation Dissolvable bridge plug
CN103362489B (en) * 2006-01-27 2017-05-10 普拉德研究及开发股份有限公司 Method used for stratum hydraulic fracture
US8770261B2 (en) 2006-02-09 2014-07-08 Schlumberger Technology Corporation Methods of manufacturing degradable alloys and products made from degradable alloys
US8261834B2 (en) 2007-04-30 2012-09-11 Schlumberger Technology Corporation Well treatment using electric submersible pumping system
GB2454917B (en) * 2007-11-23 2011-12-14 Schlumberger Holdings Deployment of a wireline tool
US7963325B2 (en) * 2007-12-05 2011-06-21 Schlumberger Technology Corporation Method and system for fracturing subsurface formations during the drilling thereof
WO2010033716A2 (en) * 2008-09-19 2010-03-25 Chevron U.S.A. Inc. Method for optimizing well production in reservoirs having flow barriers
US8276677B2 (en) 2008-11-26 2012-10-02 Baker Hughes Incorporated Coiled tubing bottom hole assembly with packer and anchor assembly
GB0911672D0 (en) * 2009-07-06 2009-08-12 Tunget Bruce A Through tubing cable rotary system
US8479832B2 (en) * 2009-02-18 2013-07-09 Schlumberger Technology Corporation Method and apparatus for setting an inflatable packer in a subhydrostatic wellbore
US8408300B2 (en) * 2009-06-16 2013-04-02 Schlumberger Technology Corporation Open-hole stimulation system
RU2398099C1 (en) * 2009-07-10 2010-08-27 Дмитрий Иванович Александров Method for well completion
US8944167B2 (en) 2009-07-27 2015-02-03 Baker Hughes Incorporated Multi-zone fracturing completion
US8695716B2 (en) 2009-07-27 2014-04-15 Baker Hughes Incorporated Multi-zone fracturing completion
US8613321B2 (en) 2009-07-27 2013-12-24 Baker Hughes Incorporated Bottom hole assembly with ported completion and methods of fracturing therewith
CA2891734C (en) * 2009-11-06 2017-08-22 Weatherford Technology Holdings, Llc Method and apparatus for a wellbore accumulator system assembly
CA2843619C (en) 2010-02-18 2018-05-15 Ncs Oilfield Services Canada Inc. Downhole tool assembly with debris relief, and method for using same
CN103003520B (en) * 2010-05-11 2015-05-13 普拉德研究及开发股份有限公司 Method and system for treating a subterranean formation
US8794331B2 (en) 2010-10-18 2014-08-05 Ncs Oilfield Services Canada, Inc. Tools and methods for use in completion of a wellbore
US8955603B2 (en) * 2010-12-27 2015-02-17 Baker Hughes Incorporated System and method for positioning a bottom hole assembly in a horizontal well
AU2012279476B2 (en) * 2011-07-05 2017-08-31 Bruce A. Tunget Cable compatible rig-less operable annuli engagable system for using and abandoning a subterranean well
WO2013032433A1 (en) * 2011-08-29 2013-03-07 Halliburton Energy Services, Inc. Downhole fluid flow control system and method having dynamic response to local well conditions
US9677337B2 (en) 2011-10-06 2017-06-13 Schlumberger Technology Corporation Testing while fracturing while drilling
US8931559B2 (en) 2012-03-23 2015-01-13 Ncs Oilfield Services Canada, Inc. Downhole isolation and depressurization tool
CA2884071A1 (en) 2012-09-10 2014-03-13 Schlumberger Canada Limited Method for transverse fracturing of a subterranean formation
CA2862556A1 (en) * 2013-09-11 2015-03-11 Shell Internationale Research Maatschappij B.V. Method to underdisplace hydraulic fractures in horizontal or deviated well
RU2537719C1 (en) * 2013-10-29 2015-01-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Method of multiple hydrofracturing of formation in open hole of horizontal well
WO2015089458A1 (en) 2013-12-13 2015-06-18 Schlumberger Canada Limited Creating radial slots in a wellbore
US10221667B2 (en) 2013-12-13 2019-03-05 Schlumberger Technology Corporation Laser cutting with convex deflector
CN105089599A (en) * 2014-05-08 2015-11-25 中国石油化工股份有限公司 Device and method for immovable string hydraulic sand blasting and fracturing
US9982517B2 (en) * 2014-06-27 2018-05-29 Owen Oil Tools Lp Coiled tubing connector for downhole tools
CN105317409B (en) * 2014-07-03 2018-03-09 中国石油化工股份有限公司 A kind of staged fracturing of horizontal well pumps perforating methods
CN105350948B (en) * 2014-08-22 2019-01-01 中国石油化工股份有限公司 Shale gas horizontal well fracturing method and shale gas horizontal well completion method
AU2015324488B2 (en) * 2014-10-03 2017-12-07 Exxonmobil Upstream Research Company Method for remediating a screen-out during well completion
WO2016069977A1 (en) 2014-10-30 2016-05-06 Schlumberger Canada Limited Creating radial slots in a subterranean formation
US9810051B2 (en) * 2014-11-20 2017-11-07 Thru Tubing Solutions, Inc. Well completion
CN104624623B (en) * 2015-01-30 2017-09-12 浙江博世华环保科技有限公司 A kind of contaminated site original position extracting restorative procedure
CN104624633B (en) * 2015-01-30 2017-09-12 浙江博世华环保科技有限公司 A kind of contaminated site injection restorative procedure in situ
US9528353B1 (en) 2015-08-27 2016-12-27 William Jani Wellbore perforating tool
CN105134157B (en) * 2015-10-10 2017-09-01 北京化工大学 A kind of rock stratum steam fracturing device applied to shale gas exploitation
RU2612702C1 (en) * 2015-12-25 2017-03-13 Игорь Александрович Гостев Method of hydromechanical punching of wells on depression
CN105840166B (en) * 2016-04-19 2018-09-11 中石化重庆涪陵页岩气勘探开发有限公司 A kind of fractured horizontal well gas testing well-completing process using complete dissolvable bridge plug
US10415382B2 (en) * 2016-05-03 2019-09-17 Schlumberger Technology Corporation Method and system for establishing well performance during plug mill-out or cleanout/workover operations
RU2631517C1 (en) * 2016-06-28 2017-09-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский государственный университет нефти и газа (национальный исследовательский университет) имени И.М. Губкина" Method for mechanised pump operation of wells and device for its implementation
RU170641U1 (en) * 2016-09-16 2017-05-03 Эльмир Саттарович Кузяев Device for orienting a perforator in a well
CA3032393C (en) * 2016-10-03 2020-03-24 Owen Oil Tools Lp A perforating gun
RU2673093C2 (en) * 2017-04-24 2018-11-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" Method for express determination of the characteristics of the bottomhole formation zone applied when developing the well
CN107725010A (en) * 2017-10-27 2018-02-23 西安石竹能源科技有限公司 A kind of fusible single-core cable release device
CA2988409A1 (en) 2017-12-20 2019-06-20 Lee Energy Systems Inc. Wireline deployed multi-stage stimulation and fracturing system
EP3740644B1 (en) 2018-04-06 2022-12-28 Halliburton Energy Services, Inc. Systems and methods for downhole tubular cutting
CA3004675A1 (en) * 2018-05-11 2019-11-11 Fluid Energy Group Ltd. Novel corrosion inhibition composition and fracking method
US11125026B2 (en) 2018-10-24 2021-09-21 Saudi Arabian Oil Company Completing slim-hole horizontal wellbores
CN111425174B (en) * 2019-01-09 2022-02-01 中国石油天然气股份有限公司 Thermal concentric layered electric ignition process pipe column
US10927654B2 (en) 2019-05-23 2021-02-23 Saudi Arabian Oil Company Recovering hydrocarbons in multi-layer reservoirs with coiled tubing
US11428089B2 (en) 2019-05-23 2022-08-30 Halliburton Energy Services, Inc. Locating self-setting dissolvable plugs
US20200378229A1 (en) * 2019-05-28 2020-12-03 Saudi Arabian Oil Company Proppant-free hydraulic fracturing
CN110924931B (en) * 2019-12-09 2022-04-05 西南石油大学 Hydraulic fracture and natural fracture interaction state discrimination method based on energy conversion
CN111779469B (en) * 2020-01-07 2024-06-25 中国石油化工股份有限公司 Horizontal well crawler perforating system and perforating method
CN111091919A (en) * 2020-02-13 2020-05-01 中国工程物理研究院核物理与化学研究所 Activated foil clamping structure for neutron activation analysis and activated foil taking-out device
RU2750792C1 (en) * 2020-10-21 2021-07-02 Николай Маратович Шамсутдинов Method for conducting hydraulic fracturing in inclined-directional oil well operating single product reservoir
RU2752371C1 (en) * 2020-10-24 2021-07-26 Николай Маратович Шамсутдинов Method for conducting hydraulic fracture treatment in inclined-directed oil-producing well operating two productive formations
CN114564800B (en) * 2022-02-25 2022-10-11 北京金阳普泰石油技术股份有限公司 Vertical thickness longitudinal fitting method and system for horizontal well logging curve
CN114876370B (en) * 2022-06-01 2023-03-28 中国石油大学(北京) Multi-point directional jet drilling tool and method of use thereof
CN117365396A (en) * 2023-12-05 2024-01-09 大庆金祥寓科技有限公司 Cable type precise old well secondary perforation process and new well secondary perforation process
CN117868803A (en) * 2024-03-13 2024-04-12 中石化西南石油工程有限公司 Four-combined test pipe column suitable for ultra-deep well oil and gas well and use method thereof

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558427A (en) * 1946-05-08 1951-06-26 Schlumberger Well Surv Corp Casing collar locator
US2986214A (en) * 1956-12-26 1961-05-30 Jr Ben W Wiseman Apparatus for perforating and treating zones of production in a well
US3118501A (en) * 1960-05-02 1964-01-21 Brents E Kenley Means for perforating and fracturing earth formations
US3417827A (en) * 1967-01-09 1968-12-24 Gulf Research Development Co Well completion tool
US4208966A (en) * 1978-02-21 1980-06-24 Schlumberger Technology Corporation Methods and apparatus for selectively operating multi-charge well bore guns
US4315797A (en) * 1980-06-02 1982-02-16 Gearhart Industries, Inc. Chemical pipe cutter with exponential spacing between reactant stages
US4637468A (en) * 1985-09-03 1987-01-20 Derrick John M Method and apparatus for multizone oil and gas production
US4917187A (en) * 1989-01-23 1990-04-17 Baker Hughes Incorporated Method and apparatus for hydraulically firing a perforating gun below a set packer
DK34192D0 (en) * 1992-03-13 1992-03-13 Htc As TRACTOR FOR PROMOTING PROCESSING AND MEASURING EQUIPMENT IN A Borehole
US5287924A (en) * 1992-08-28 1994-02-22 Halliburton Company Tubing conveyed selective fired perforating systems
US5287741A (en) * 1992-08-31 1994-02-22 Halliburton Company Methods of perforating and testing wells using coiled tubing
US5704426A (en) * 1996-03-20 1998-01-06 Schlumberger Technology Corporation Zonal isolation method and apparatus
US5954133A (en) * 1996-09-12 1999-09-21 Halliburton Energy Services, Inc. Methods of completing wells utilizing wellbore equipment positioning apparatus
DE19882627T1 (en) 1997-08-26 2000-09-28 Exxonmobil Upstream Res Co Stimulation of lenticular gas formations
FR2769665B1 (en) * 1997-10-13 2000-03-10 Inst Francais Du Petrole MEASUREMENT METHOD AND SYSTEM IN A HORIZONTAL DUCT
US6296066B1 (en) * 1997-10-27 2001-10-02 Halliburton Energy Services, Inc. Well system

Also Published As

Publication number Publication date
MXPA02007728A (en) 2002-10-11
WO2001061146B1 (en) 2001-11-29
PL196155B1 (en) 2007-12-31
EP2282002A3 (en) 2011-05-04
EP2282002B1 (en) 2012-07-11
NZ520310A (en) 2004-08-27
PE20011019A1 (en) 2001-10-24
NO20023571D0 (en) 2002-07-26
EA004100B1 (en) 2003-12-25
CN1281846C (en) 2006-10-25
MY132567A (en) 2007-10-31
EP1264075A1 (en) 2002-12-11
CO5300472A1 (en) 2003-07-31
DZ3378A1 (en) 2001-08-23
CA2397460A1 (en) 2001-08-23
WO2001061146A1 (en) 2001-08-23
CN1416499A (en) 2003-05-07
OA12171A (en) 2006-05-08
EP1264075A4 (en) 2004-08-11
AU2001236978B2 (en) 2004-12-23
TNSN01026A1 (en) 2003-04-03
RO121145B1 (en) 2006-12-29
EA200200857A1 (en) 2003-04-24
NO20023571L (en) 2002-10-14
BR0108418B1 (en) 2010-06-29
EG23117A (en) 2004-04-28
CA2397460C (en) 2009-07-07
DK2282002T3 (en) 2012-10-15
EP1264075B1 (en) 2018-06-20
PL365452A1 (en) 2005-01-10
AR027331A1 (en) 2003-03-26
NO330514B1 (en) 2011-05-09
EP2282002A2 (en) 2011-02-09
AU3697801A (en) 2001-08-27

Similar Documents

Publication Publication Date Title
BR0108418A (en) A method for drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore, and stimulus treatment system, and apparatus for use in drilling and treating multiple gaps of one or more underground formations intercepted by a wellbore. borehole.
BR9911865A (en) Apparatus and method for stimulating underground formation
ATE152500T1 (en) METHOD FOR TREATING UNDERGROUND FORMATIONS AND HYDRAULIC FLUID CONTAINING CAPSULES FOR USE THEREOF
BRPI0517841A (en) viscoelastic surfactant fluid, method of treating an underground formation and method of treating an oilfield
EA200300159A1 (en) METHOD FOR TREATING NUMEROUS DRUM WELLS INTERVALS
BR9609875A (en) Apparatus and process for drilling and completing multiple wells
BR9917054A (en) Service fluid and well drilling, and processes for drilling a well and conducting well service operations in a borehole
DE69425982D1 (en) SEALING LIQUID FOR SEALING AN UNDERGROUND FORMATION
BRPI0404002A (en) Well completion and drilling system
MY135450A (en) Viscoelastic surfactant fluids stable at high brine concentrations
BR0211345B1 (en) method for introducing a fluid into a drillhole formed in an underground earth formation, and system for drilling and for introducing a fluid into a drillhole in an underground earth formation.
AR031651A1 (en) FLUIDS FOR DRILLING AND MAINTENANCE OF WELLS CONTAINING CHITOSAN ACUOSO WITH AN INCREASED VISCOSITY
EA200100092A1 (en) METHOD AND TOOL FOR RIPPING THE UNDERGROUND LAYER
BR0212667A (en) Active controlled downhole pressure system and method
BR9609546A (en) Fluid and drilling system processes for drilling a well in an underground formation and for treating a well natural resource system and process to reduce friction between two surfaces in relative motion and apparatus
BR0107052A (en) Real time reservoir fracture process
NO20025861D0 (en) Method of drilling with casing
BR0311505A (en) Method and system for removing particles from a wellbore and method for drilling a wellbore
BR0015547A (en) Processes to degrade a predetermined substrate, filter cake and contaminant emerging from an underground formation, to increase the flow of hydrocarbons from a well and to treat a well bore and composition for use in hydrocarbon exploration operations
BR0115380A (en) Coupler for continuous circulation of drilling fluids through a drill wire, method of adding or removing tubulars to and from a drill wire, ground drilling apparatus
ATE333435T1 (en) DEVICE AND METHOD FOR THE CONTROLLED PERFORMANCE OF PRESSURE CYLINDERS
BR0201855A (en) Method for testing the effectiveness or reaction time of a breaker fluid for breaking a filter cake on the flanks of a borehole that penetrates an underground formation, and apparatus for testing the effectiveness of a breaker fluid for breaking a filter cake over the wall of a drillhole that penetrates an underground formation.
TR200100497T2 (en) Drilling and draining holes in soil or rock.
BR0301086A (en) Method and system for isolating wellbore joint
ATE305080T1 (en) DEVICE AND METHOD FOR ANCHORING A DRILLING TOOL IN A CASED DRILLHOLE

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/02/2001, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 14.02.2021