发明名称 METHOD AND APPARATUS FOR PENETRATING SUBSURFACE FORMATIONS
摘要 A method and apparatus (9, 53) for driving at least one explosive driven projectile (11, 58) into an open hole (H) or well bore (B) of a subterranean formation for the purpose of stimulating productive formation. The apparatus is capable of pivoting within the open hole or well bore for desired firing at an angle and is also capable of deep penetration into a subterranean formation. The apparatus may also be conveyed by a tubing (51) in horizontal drilling applications.
申请公布号 WO2004099551(B1) 申请公布日期 2005.09.29
申请号 WO2004US13295 申请日期 2004.04.29
申请人 NACKERUD, ALAN, L. 发明人 NACKERUD, ALAN, L.
分类号 E21B43/116;E21B43/118;F41A1/10;F41F1/00;(IPC1-7):E21B43/116 主分类号 E21B43/116
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