公开(公告)号：US20050263340A1

公开(公告)日：2005-12-01

申请号：US10853569

申请日：2004-05-25

申请人： Gamal Shehab ,  Robert Mann ,  Brian Abbott ,  James Minear ,  David Gillis ,  George Kear

发明人： Gamal Shehab ,  Robert Mann ,  Brian Abbott ,  James Minear ,  David Gillis ,  George Kear

IPC分类号： G01V1/02 ,  G01V1/04 ,  G01V1/40

CPC分类号： G01V1/04 ,  G01V1/40

摘要： An apparatus for generating a seismic signal in a wellbore includes an elongated housing configured to be disposed in the wellbore; a piston slidably disposed in an internal bore in the elongated housing; a strike plate fixed on the elongated housing proximate one end of the internal bore; and an energizing mechanism configured to move the piston to hit the strike plate. A downhole system for seismic survey of a formation penetrated by a wellbore includes at least one seismic receiver; a seismic source; and at least one inflatable packer configured to separate the seismic source and the at least one seismic receiver in different compartments in the wellbore when inflated.

摘要翻译： 一种用于在井筒中产生地震信号的装置包括：细长壳体，其构造成设置在井眼中; 可滑动地设置在细长壳体中的内孔中的活塞; 撞击板，固定在细长壳体上，靠近内孔的一端; 以及激励机构，其构造成使活塞移动以撞击撞击板。 井眼渗透的地层的地震勘测井下系统包括至少一个地震接收器; 震源 以及至少一个充气封隔器，其构造成在充气时将所述井筒中的不同隔室中的所述震源和所述至少一个地震接收器分离。