发明名称 |
ENCAPSULATED INTERNAL FILTER CAKE BREAKERS WITH IMPROVED RELEASE PROPERTIES |
摘要 |
A wellbore fluid including a peroxide degradable polymer and an encapsulated peroxide source. The peroxide degradable polymer may be a polysaccharide. The peroxide source may include an inorganic peroxide, including zinc and alkaline earth metal peroxides, such as magnesium peroxide. The encapsulating material may be a polymer, including a metal crosslinked acrylic polymer. The release of peroxide, from peroxide sources generally, can be controlled by means of pH such that peroxide source can be activated, and peroxide released, by a change in pH. In a wellbore, this pH change can be effected by using produced fluids to lower the pH of a more basic wellbore fluid. |
申请公布号 |
WO2015017633(A1) |
申请公布日期 |
2015.02.05 |
申请号 |
WO2014US49083 |
申请日期 |
2014.07.31 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC;ROHM AND HAAS COMPANY |
发明人 |
LIU, CHUN;MOHLER, CAROL ELAINE;TYSAK, THEODORE;MERCANDO, PAUL;ENDER, KACEE B.;JAIN, DISHA |
分类号 |
C09K8/03;C09K8/516;C09K8/536 |
主分类号 |
C09K8/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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