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发明名称
METHOD AND APPARATUS FOR MANAGING VARIABLE DENSITY DRILLING MUD
摘要
申请公布号
EP1994254(A2)
申请公布日期
2008.11.26
申请号
EP20070750522
申请日期
2007.02.13
申请人
EXXONMOBILE UPSTREAM RESEARCH COMPANY
发明人
SPIECKER, P., MATTHEW;ENTCHEV, PAVLIN, B.;GUPTA, RAMESH;POLIZZOTTI, RICHARD;CARSTENSEN, BARBARA;PEIFFER, DENNIS, G.;POKUTYLOWICZ, NORMAN
分类号
E21B21/01;E21B21/06;E21B21/08
主分类号
E21B21/01
代理机构
代理人
主权项
地址
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