BR112017014049A2 - método para reduzir a perda de circulação em uma formação subterrânea, fluido de tratamento e sistema para obstrução de uma zona de perda de circulação - Google Patents

método para reduzir a perda de circulação em uma formação subterrânea, fluido de tratamento e sistema para obstrução de uma zona de perda de circulação

Info

Publication number
BR112017014049A2
BR112017014049A2 BR112017014049A BR112017014049A BR112017014049A2 BR 112017014049 A2 BR112017014049 A2 BR 112017014049A2 BR 112017014049 A BR112017014049 A BR 112017014049A BR 112017014049 A BR112017014049 A BR 112017014049A BR 112017014049 A2 BR112017014049 A2 BR 112017014049A2
Authority
BR
Brazil
Prior art keywords
circulation
loss
underground formation
treatment fluid
obstructing
Prior art date
Application number
BR112017014049A
Other languages
English (en)
Inventor
Chad Brenneis Darrell
Robert Benkley James
Chatterji Jiten
Agapiou Kyriacos
Jason Pisklak Thomas
Original Assignee
Halliburton Energy Services 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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Publication of BR112017014049A2 publication Critical patent/BR112017014049A2/pt

Links

Classifications

    • 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
    • C09K8/02—Well-drilling compositions
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/032—Inorganic additives
    • 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
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/10—Burned or pyrolised refuse
    • C04B18/101—Burned rice husks or other burned vegetable material
    • 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
    • C04B28/04—Portland cements
    • 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
    • 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
    • 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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/501—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls using spacer compositions
    • 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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/502—Oil-based compositions
    • 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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/601—Compositions for stimulating production by acting on the underground formation using spacer compositions
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/64—Oil-based compositions
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B21/003—Means for stopping loss of drilling fluid
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
    • 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

Abstract

um método para reduzir a perda de circulação em uma formação subterrânea. o método inclui o fornecimento de um fluido de tratamento compreendendo um fluido base e um material de perda de circulação compreendendo cinzas de cana-de-açúcar. o fluido de tratamento é introduzido em um poço dentro da formação subterrânea, de modo que pelo menos uma porção das cinzas de cana-de-açúcar atravesse as aberturas na formação subterrânea para reduzir a perda de circulação do fluido para a formação subterrânea.
BR112017014049A 2015-01-30 2015-01-30 método para reduzir a perda de circulação em uma formação subterrânea, fluido de tratamento e sistema para obstrução de uma zona de perda de circulação BR112017014049A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2015/013938 WO2016122650A1 (en) 2015-01-30 2015-01-30 Lost circulation materials comprising cane ash

Publications (1)

Publication Number Publication Date
BR112017014049A2 true BR112017014049A2 (pt) 2018-01-02

Family

ID=56544066

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017014049A BR112017014049A2 (pt) 2015-01-30 2015-01-30 método para reduzir a perda de circulação em uma formação subterrânea, fluido de tratamento e sistema para obstrução de uma zona de perda de circulação

Country Status (8)

Country Link
US (1) US10119060B2 (pt)
AU (1) AU2015380501B2 (pt)
BR (1) BR112017014049A2 (pt)
CA (1) CA2970095C (pt)
GB (1) GB2549016B (pt)
MX (1) MX2017008750A (pt)
NO (1) NO20171094A1 (pt)
WO (1) WO2016122650A1 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220097299A1 (en) 2019-02-11 2022-03-31 Ppg Industries Ohio, Inc. Methods of making chemically resistant sealing components
EP3924167A1 (en) 2019-02-11 2021-12-22 PPG Industries Ohio Inc. 3d printing of seal caps
EP3924184A1 (en) 2019-02-11 2021-12-22 PPG Industries Ohio Inc. Multilayer systems and methods of making multilayer systems
US11015097B2 (en) 2019-03-06 2021-05-25 Prc-Desoto International, Inc. Chemically resistant sealant compositions and uses thereof
US11015057B2 (en) 2019-04-03 2021-05-25 Prc-Desoto International, Inc. Dual-cure compositions
US11173692B2 (en) 2019-12-19 2021-11-16 Prc-Desoto International, Inc. Free radical polymerizable adhesion-promoting interlayer compositions and methods of use
US11466125B2 (en) 2019-12-19 2022-10-11 Prc-Desoto International, Inc. Low nucleation temperature polythioether prepolymers and uses thereof
US11608458B2 (en) 2019-12-19 2023-03-21 Prc-Desoto International, Inc. Adhesion-promoting interlayer compositions containing organic titanates/zirconates and methods of use
US11624007B2 (en) 2020-01-29 2023-04-11 Prc-Desoto International, Inc. Photocurable adhesion-promoting compositions and methods of use
US11066899B1 (en) 2020-03-18 2021-07-20 Saudi Arabian Oil Company Methods of sealing a subsurface formation with saudi arabian volcanic ash
US11820708B2 (en) 2020-03-18 2023-11-21 Saudi Arabian Oil Company Geopolymer cement slurries, cured geopolymer cement and methods of making and use thereof
US11098235B1 (en) 2020-03-18 2021-08-24 Saudi Arabian Oil Company Methods of converting drilling fluids into geopolymer cements and use thereof
US10920121B1 (en) 2020-03-18 2021-02-16 Saudi Arabian Oil Company Methods of reducing lost circulation in a wellbore using Saudi Arabian volcanic ash
US11820707B2 (en) 2020-03-18 2023-11-21 Saudi Arabian Oil Company Geopolymer cement slurries, cured geopolymer cement and methods of making and use thereof
US11015108B1 (en) 2020-03-18 2021-05-25 Saudi Arabian Oil Company Methods of reducing lost circulation in a wellbore using Saudi Arabian volcanic ash
US11214666B2 (en) 2020-04-15 2022-01-04 Prc-Desoto International, Inc. Controlling cure rate with wetted filler
US11434410B2 (en) 2020-07-07 2022-09-06 Halliburton Energy Services, Inc. Methods of making and using a wellbore servicing fluid for controlling losses in permeable zones
WO2022177863A1 (en) 2021-02-16 2022-08-25 Prc-Desoto International, Inc. Compositions containing a free radical polymerization initiator
EP4314115A1 (en) 2021-03-29 2024-02-07 PRC-Desoto International, Inc. Hybrid dual cure compositions
CN117500884A (zh) 2021-04-27 2024-02-02 Ppg工业俄亥俄公司 用于增材制造的多次固化共反应性组合物以及其用途
CA3228686A1 (en) 2021-09-02 2023-03-09 Shane Xiufeng Peng Applicators for high viscosity materials
WO2023086773A1 (en) 2021-11-10 2023-05-19 Ppg Industries Ohio, Inc. Linear sealing components and methods and compositions for additively manufacturing thereof
US11542424B1 (en) 2021-12-09 2023-01-03 Halliburton Energy Services, Inc. Wellbore servicing fluids and methods for controlling fluid losses in permeable zones
WO2023164445A1 (en) 2022-02-23 2023-08-31 Ppg Industries Ohio, Inc. Conductive articles and methods for additive manufacturing thereof
US11879089B1 (en) * 2022-11-22 2024-01-23 Halliburton Energy Services, Inc. Lost circulation material package with tailored particle size distribution
US11933119B1 (en) 2023-01-25 2024-03-19 Halliburton Energy Services, Inc. Curing lost circulation of oil-based drilling muds

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6976537B1 (en) * 2002-01-30 2005-12-20 Turbo-Chem International, Inc. Method for decreasing lost circulation during well operation
US7094737B1 (en) * 2002-04-08 2006-08-22 Sampey James A Sugar cane additive for filtration control in well working compositions
US8733440B2 (en) * 2009-07-02 2014-05-27 Halliburton Energy Services, Inc. Well cement compositions comprising biowaste ash and methods of use
AR094688A1 (es) 2013-02-18 2015-08-19 Halliburton Energy Services Inc Composiciones que contienen polvo de horno y/o ceniza de residuos biológicos y métodos de uso
RU2626712C2 (ru) 2013-03-11 2017-07-31 Интерконтинентал Грейт Брендс Ллк Элемент вскрытия упаковки и способы его производства
US20150322327A1 (en) * 2014-05-09 2015-11-12 Halliburton Energy Services, Inc. Sugar Cane Ash in Spacer Fluids

Also Published As

Publication number Publication date
GB2549016A (en) 2017-10-04
CA2970095C (en) 2019-07-30
CA2970095A1 (en) 2016-08-04
US10119060B2 (en) 2018-11-06
US20170369757A1 (en) 2017-12-28
AU2015380501A1 (en) 2017-06-22
MX2017008750A (es) 2017-11-17
GB201709000D0 (en) 2017-07-19
GB2549016B (en) 2022-02-16
WO2016122650A1 (en) 2016-08-04
AU2015380501B2 (en) 2018-03-22
NO20171094A1 (en) 2017-07-04

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Legal Events

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements