WELLBORE SYSTEM FOR SIMULTANEOUS DRILLING AND PRODUCTION,申请号EP20020777183-传众专利搜索

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发明名称	WELLBORE SYSTEM FOR SIMULTANEOUS DRILLING AND PRODUCTION
摘要
申请公布号	EP1430200(A1)	申请公布日期	2004.06.23
申请号	EP20020777183	申请日期	2002.09.23
申请人	SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.	发明人	VAN HELVOIRT, LAURENS, CORNELIS;SHEEHY, HUGH, EDWARD
分类号	E21B7/06;E21B17/18;E21B33/12;E21B33/122;E21B43/14;E21B43/30;(IPC1-7):E21B7/06	主分类号	E21B7/06
代理机构		代理人
主权项
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