发明名称 Drilling fluid comprising a high-amylose starch
摘要 The invention relates to drilling fluids used in methods for drilling wells into subterranean formations containing oil, gas or other minerals for the purpose of extraction and production of said minerals and the use of starch in such fluids. The invention provides a method for drilling such a well using a drilling fluid comprising a high-amylose starch or starch-blend.
申请公布号 US2004038830(A1) 申请公布日期 2004.02.26
申请号 US20030343641 申请日期 2003.09.11
申请人 STOVER BERNHARD EMILE 发明人 STOVER BERNHARD EMILE
分类号 C09K8/02;C09K8/04;C09K8/20;(IPC1-7):C09K7/00 主分类号 C09K8/02
代理机构 代理人
主权项
地址