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发明名称
WELLHEAD ASSEMBLY AND METHOD FOR AN INJECTION TUBING STRING
摘要
申请公布号
EP2102446(A1)
申请公布日期
2009.09.23
申请号
EP20080705846
申请日期
2008.01.10
申请人
BJ SERVICES COMPANY
发明人
BOLDING, JEFFREY, L.;COLE, BLANE;HILL, THOMAS G., JR.
分类号
E21B33/068
主分类号
E21B33/068
代理机构
代理人
主权项
地址
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