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发明名称
ADDITIVE FOR DRILLING MUD
摘要
申请公布号
JPH02129287(A)
申请公布日期
1990.05.17
申请号
JP19880281262
申请日期
1988.11.09
申请人
NIPPON SHOKUBAI KAGAKU KOGYO CO LTD
发明人
SHIOJI NAOTAKE;IRIE YOSHIO;FUJIWARA TERUAKI
分类号
E21B21/00;C08F220/04;C09K8/04;C09K8/24
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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