Peracetic acid oil-field biocide and method 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
WO2010080274 A2 2010-07-15 [WO201080274]WO2010080274 A3 2010-09-02 [WO201080274] / 2010-07-152010-09-02
申请号/申请日
2009WO-US66928 / 2009-12-07
发明人
ROVISON JOHN M JR;HUANG SHURONG;PFEFFER HENRY A;
申请人
FMC CORPORATION;
主分类号
IPC分类号
A01N-025/02A01N-025/08A01N-031/02A01N-059/00A01P-001/00
摘要
(WO201080274) Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present.  Peracetic acid is the preferred peracid.  The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity.  A method of using such compositions is also disclosed.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2008US-61203078 2008-12-18
主权利要求
(WO201080274) WHAT IS CLAIMED IS: 1. An aqueous well treatment fluid composition with biocidal activity comprising a polymer or copolymer for modifying fluid viscosity; an organic monocarboxylic peracid in an antimicrobial amount of about 1 ppm to about 1000 ppm; and hydrogen peroxide, the hydrogen peroxide concentration being less than the peracid concentration; in an aqueous medium. 2. The composition of claim 1 wherein the peracid is a C2to C5 peroxycarboxylic acid. 3. The composition of claim 2 wherein the peracid is selected from peracetic acid and perpropionic acid. 4. An aqueous well treatment fluid composition with biocidal activity comprising a fluid viscosity-reducing polymer or copolymer in a friction-reducing amount to provide improved fluid flow characteristics; peracetic acid in an antimicrobial amount of about 1 ppm to about 1000 ppm; and hydrogen peroxide, the hydrogen peroxide concentration being less than the peracetic acid concentration; in an aqueous medium. 5. The composition of claim 4 wherein the peracetic acid is present in an amount of about 1 ppm to about 50 ppm. 6. The composition of claim 4 wherein the polymer or copolymer is selected from the group consisting of acrylamide-derived polymers and copolymers; acrylate- derived polymers and copolymers; guar and guar derivatives; ethylene oxide-derived polymers, and combinations of these. 7. The composition of claim 4 wherein the friction-reducing polymer or copolymer is present in an amount of about 0.01 wt % about 1 wt %, based on the weight of the aqueous composition. 8. The composition of claim 4 wherein the aqueous well treatment fluid composition is a slick water composition, containing an acrylamide-derived polymer or copolymer that functions as a friction reducer to improve the flow characteristics of the aqueous fluid composition. 9. An aqueous well treatment fluid composition with biocidal activity comprising a viscosity-increasing polymer or copolymer in an amount sufficient to increase fluid viscosity; peracetic acid in an antimicrobial amount of about 1 ppm to about 1000 ppm; and hydrogen peroxide, the hydrogen peroxide concentration being less than the peracetic acid concentration; in an aqueous medium. 10. The composition of claim 9 wherein the peracetic acid is present in an amount of about 1 ppm to about 100 ppm. 11. The composition of claim 9 wherein the viscosity-increasing polymer or copolymer is selected from the group consisting of acrylamide-derived polymers and copolymers; acrylate-derived polymers and copolymers; natural and synthetic polysaccharides and their derivatives; natural and synthetic cellulosic polymers and copolymers and their derivatives; and combinations of these. 12. The composition of claim 11 wherein the viscosity-increasing polymer or copolymer is at least partially crosslinked. 13. The composition of claim 9 wherein the viscosity-increasing polymer or copolymer is present in an amount of about 0.01 wt % to about 10 wt %, based on the weight of the aqueous composition. 14. A method of providing biocidal activity in a well treatment fluid comprising introducing, into an aqueous well treatment fluid composition comprising a polymer or copolymer for modifying fluid viscosity, and an aqueous monocarboxylic peracid solution in an antimicrobial-effective amount of about 1 ppm to about 1000 ppm, the aqueous peracid solution having a peracid acid weight concentration in excess of hydrogen peroxide also present in the aqueous peracid solution; and thereafter directing the aqueous well treatment fluid into a subterranean environment. 15. The method of claim 14 wherein the peracid is a C2to C5peroxycarboxylic acid. 16. The method of claim 15 wherein the peracid is selected from peracetic acid and perpropionic acid. 17. The method of claim 14 wherein the peracid is present in an amount of about 1 ppm to about 50 ppm. 18. The method of claim 14 wherein the peracid is introduced into the aqueous well treatment fluid composition when the composition has a pH less than about 8. 19. The method of claim 14 wherein the peracid is introduced into water used to prepare the aqueous well treatment fluid composition. 20. The method of claim 14 wherein the polymer or copolymer serves to reduce fluid viscosity and is present in a friction-reducing amount to provide improved fluid flow characteristics. 21. The method of claim 20 wherein the polymer or copolymer is selected from the group consisting of acrylamide-derived polymers and copolymers; acrylate-derived polymers and copolymers; guar and guar derivatives; ethylene oxide-derived polymers, and combinations of these. 22. The method of claim 20 wherein the friction-reducing polymer or copolymer is present in an amount of about 0.01 wt % about 1 wt %, based on the weight of the aqueous composition. 23. The method of claim 14 wherein the polymer or copolymer serves to increase fluid viscosity and is present in an amount sufficient to provide increased fluid viscosity. 24. The method of claim 23 wherein the viscosity-increasing polymer is selected from the group consisting of acrylamide-derived polymers and copolymers; acrylate- derived polymers and copolymers; natural and synthetic polysaccharides and their derivatives; natural and synthetic cellulosic polymers and copolymers and their derivatives; and combinations of these. 25. The method of claim 24 wherein the viscosity-increasing polymer is viscosity- increasing polymer or copolymer is at least partially crosslinked 26. The method of claim 23 wherein the viscosity-increasing polymer is present in an amount of about 0.1 wt % to about 10 wt %, based on the weight of the aqueous composition.
法律状态
(WO201080274) LEGAL DETAILS FOR WO2010080274  Actual or expected expiration date=2012-06-18    Legal state=DEAD    Status=LAPSED     Event publication date=2009-12-07  Event code=WO/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=WO WOUS2009066928  Application date=2009-12-07  Standardized application number=2009WO-US66928     Event publication date=2010-07-15  Event code=WO/A2  Event type=Examination events  International application published with declaration under Article 17 (2) (a)  Publication country=WO  Publication number=WO2010080274  Publication stage Code=A2  Publication date=2010-07-15  Standardized publication number=WO201080274     Event publication date=2010-09-02  Event code=WO/A3  Event indicator=Pos  Event type=Examination events  Later publication of ISR with revised front page  Publication country=WO  Publication number=WO2010080274  Publication stage Code=A3  Publication date=2010-09-02  Standardized publication number=WO201080274     Event publication date=2012-06-18  Event code=WO/EETL  Event type=Event indicating Not In Force  PCT Application validity period expired. 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专利类型码
A2A3
国别省市代码
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