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发明名称
Drilling fluid
摘要
Zinc oxide and zirconium oxide are used as weighting materials for water and oil based drilling fluids for horizontal wells.
申请公布号
USH1685(H)
申请公布日期
1997.10.07
申请号
US19950499156
申请日期
1995.07.07
申请人
SHELL OIL COMPANY
发明人
LAU, HON CHUNG;HALE, ARTHUR HERMAN;BERNARDI, JR., LOUIS ANTHONY
分类号
C09K8/16;C09K8/32;(IPC1-7):C09K7/04
主分类号
C09K8/16
代理机构
代理人
主权项
地址
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