发明名称 |
POLYURETHANE BALL SEALERS |
摘要 |
Ball sealers comprising a solid core coated with a polyurethane elastomer are introduced into a well to seal well perforations and divert fluid therein. In the preferred embodiment the ball sealers are used in a hydrocarbon liquid treating fluid and have a density less than the treating fluid. |
申请公布号 |
AU4802079(A) |
申请公布日期 |
1980.01.10 |
申请号 |
AU19790048020 |
申请日期 |
1979.06.13 |
申请人 |
EXXON PRODUCTION RESEARCH COMPANY |
发明人 |
STEVEN RAY ERBSTOESSER |
分类号 |
C09K8/516;E21B27/02;E21B33/138;E21B43/26 |
主分类号 |
C09K8/516 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|