EA201070854A1 - Способ предотвращения осаждения или способ восстановления ксантана - Google Patents

Способ предотвращения осаждения или способ восстановления ксантана

Info

Publication number
EA201070854A1
EA201070854A1 EA201070854A EA201070854A EA201070854A1 EA 201070854 A1 EA201070854 A1 EA 201070854A1 EA 201070854 A EA201070854 A EA 201070854A EA 201070854 A EA201070854 A EA 201070854A EA 201070854 A1 EA201070854 A1 EA 201070854A1
Authority
EA
Eurasian Patent Office
Prior art keywords
chelating agent
metal ions
polyvalent metal
disclosed
wellbore
Prior art date
Application number
EA201070854A
Other languages
English (en)
Inventor
Роберт Л. Хортон
Майкл Т. Дарринг
Хирам Молина
Original Assignee
Эм-Ай Эл.Эл.Си.
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 Эм-Ай Эл.Эл.Си. filed Critical Эм-Ай Эл.Эл.Си.
Publication of EA201070854A1 publication Critical patent/EA201070854A1/ru

Links

Classifications

    • 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
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes

Abstract

Здесь раскрываются способы восстановления в раствор и/или предотвращения осаждения полимера на поверхности, в частности на поверхности бурового оборудования и формациях в нефтяной промышленности. Воплощения, раскрытые здесь, относятся к способу восстановления осадка ксантана, включающему стадии контакта осадка ксантана, включающий образование ксантанового комплекса с ионами поливалентного металла, с восстанавливающей жидкостью, содержащей по меньшей мере один хелатообразующий агент; и растворение жидкостью кстантанового осадка. Также здесь раскрывается способ предотвращения осаждения полимера, включающий введение скважинного флюида, включающего сшивающий полимер и по меньшей мере один хелатообразующий агент в ствол скважины; где по меньшей мере один хелатообразующий агент образует комплекс с ионами поливалентного металла, присутствующего в стволе скважины. Также здесь раскрывается усовершенствованный скважинный флюид, включающий базовую жидкость; полимер, включающий химические группы, реакционноспособные по отношению к ионам поливалентных металлов, находящимся в скважине; и по меньшей мере один хелатообразующий агент; где по меньшей мере один хелатообразующий агент образует комплекс с ионами поливалентных металлов в скважине.
EA201070854A 2008-01-16 2009-01-08 Способ предотвращения осаждения или способ восстановления ксантана EA201070854A1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2155408P 2008-01-16 2008-01-16
PCT/US2009/030378 WO2009091652A2 (en) 2008-01-16 2009-01-08 Methods for preventing or remediating xanthan deposition

Publications (1)

Publication Number Publication Date
EA201070854A1 true EA201070854A1 (ru) 2011-02-28

Family

ID=40885866

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201070854A EA201070854A1 (ru) 2008-01-16 2009-01-08 Способ предотвращения осаждения или способ восстановления ксантана

Country Status (8)

Country Link
US (1) US20110053811A1 (ru)
EP (1) EP2245107A4 (ru)
AR (1) AR070169A1 (ru)
BR (1) BRPI0907174A2 (ru)
CA (1) CA2714170A1 (ru)
EA (1) EA201070854A1 (ru)
MX (1) MX2010007772A (ru)
WO (1) WO2009091652A2 (ru)

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Also Published As

Publication number Publication date
EP2245107A4 (en) 2011-07-06
US20110053811A1 (en) 2011-03-03
WO2009091652A3 (en) 2009-10-08
EP2245107A2 (en) 2010-11-03
WO2009091652A2 (en) 2009-07-23
AR070169A1 (es) 2010-03-17
CA2714170A1 (en) 2009-07-23
BRPI0907174A2 (pt) 2015-07-14
MX2010007772A (es) 2010-09-28

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