发明名称 |
Carboxyalkyl substituted polygalactomannan fracturing fluids |
摘要 |
<p>A novel fracturing fluid composition comprising: (1) a carboxyalkyl derivatized polygalactomannan having a degree of substitution of between about 0.01 and about 3.0; (2) a zirconium salt crosslinking agent; (3) one or more thermal stabilizing agents; (4) one or more pH buffers; and (5) water; wherein said fluid is capable of maintaining at least 10 percent of its original cross-linked viscosity after three hours at a temperature greater to or equal to 250 DEG F is provided.</p> |
申请公布号 |
EP1243750(A2) |
申请公布日期 |
2002.09.25 |
申请号 |
EP20020076822 |
申请日期 |
1996.04.22 |
申请人 |
RHODIA INC. |
发明人 |
MOORHOUSE, RALPH;COTTRELL, IAN WILLIAM |
分类号 |
C08B37/00;C08L5/14;C09K8/68;(IPC1-7):E21B43/26 |
主分类号 |
C08B37/00 |
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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