发明名称 |
Zwitterionic Polymers Comprising Betaine-Type Units And Use Of Zwitterionic Polymers In Drilling Fluids |
摘要 |
The invention relates to novel polymers comprising betaine-type units and to the use of zwitterionic polymers in drilling fluids, for example, as a clay swelling inhibitor and/or as an accretion-inhibiting agent and/or as a fluid-rheology-controlling agent and/or a filtrate-reducing agent and/or a lubricant.
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申请公布号 |
US2008045420(A1) |
申请公布日期 |
2008.02.21 |
申请号 |
US20040582722 |
申请日期 |
2004.12.15 |
申请人 |
KARAGIANNI KATERINA;LABEAU MARIE-PIERRE;KUBAT RADMILA |
发明人 |
KARAGIANNI KATERINA;LABEAU MARIE-PIERRE;KUBAT RADMILA |
分类号 |
C08F220/20;C08F220/26;C08F220/34;C08F220/38;C08F246/00;C09K8/035 |
主分类号 |
C08F220/20 |
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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