发明名称 |
DRILLING FLUID CONTAINING MICROSPHERES AND USE THEREOF |
摘要 |
<p>The present invention provides a drilling fluid composition and a method of drilling comprising a drilling fluid, which may be oil- or water-based, and a composite microsphere component. The invention drilling fluid composition advantageously reduces the density of a conventional fluid, reduces costs associated with pumping and overcomes problems associated with conventional gas-injection processes. The invention uses conventional drilling and pumping equipment, requires no sea-floor based pumps and may be easily pressure-controlled to maintain the pressure of the fluid.</p> |
申请公布号 |
EP1534798(B1) |
申请公布日期 |
2006.05.10 |
申请号 |
EP20030739024 |
申请日期 |
2003.06.03 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
SHINBACH, MADELINE P.;NWABUNMA, DOMASIUS;CHAN, HUA T.;D'SOUZA, ANDREW S. |
分类号 |
C09K8/02;C09K8/03 |
主分类号 |
C09K8/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|