发明授权
- 专利标题： Process for the preparation of fluid loss additive and gel breaker
- 专利标题（中）： 流体损失添加剂和凝胶破碎剂的制备方法
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申请号： US353947申请日： 1989-05-18
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公开(公告)号： US4986355A公开(公告)日： 1991-01-22
- 发明人: Burton M. Casad , Charles R. Clark , Lisa A. Cantu , D. Philip Cords , Edward F. McBride
- 申请人： Burton M. Casad , Charles R. Clark , Lisa A. Cantu , D. Philip Cords , Edward F. McBride
- 申请人地址： OK Ponca City
- 专利权人： Conoco Inc.
- 当前专利权人： Conoco Inc.
- 当前专利权人地址： OK Ponca City
- 主分类号： C09K8/508
- IPC分类号： C09K8/508 ; C09K8/62
摘要：
A melted polymer of hydroxyacetic acid with itself or with other hydroxy-, carboxylic acid-, or hydroxycarboxylic acid-containing moieties is subjected to high shear and injected into an organic liquid which is inert to the polymer to form an organic liquid dispersion of very fine polymer particles. In one aspect the melted polymer is combined with the organic liquid and the combination is thereafter subjected to high shear to form the fine particle polymer dispersion. A dispersion agent may also be used to aid in dispersing the particles. The dispersion is used for fluid loss control and gel breaking in subterranean formations.
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