发明授权
US06730636B2 Environmentally acceptable well cement fluid loss control additives, compositions and methods
有权
环境可接受的水泥流体损失控制添加剂，组合物和方法
- 专利标题： Environmentally acceptable well cement fluid loss control additives, compositions and methods
- 专利标题（中）： 环境可接受的水泥流体损失控制添加剂，组合物和方法
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申请号： US10135492申请日： 2002-04-30
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公开(公告)号： US06730636B2公开(公告)日： 2004-05-04
- 发明人: Jan Pieter Vijn , Bach Dao , Mohand Melbouci
- 申请人： Jan Pieter Vijn , Bach Dao , Mohand Melbouci
- 主分类号： C09K300
- IPC分类号： C09K300
摘要：
Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight.
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