公开(公告)号：US20130255367A1

公开(公告)日：2013-10-03

申请号：US13436412

申请日：2012-03-30

申请人： ELIZABETH B. DUSSAN, V ,  ABDERRHAMANE OUNADJELA ,  RICHARD D. JOYCE ,  JACQUES JUNDT ,  DOUGLAS W. GRANT ,  EDWARD HARRIGAN

发明人： ELIZABETH B. DUSSAN, V ,  ABDERRHAMANE OUNADJELA ,  RICHARD D. JOYCE ,  JACQUES JUNDT ,  DOUGLAS W. GRANT ,  EDWARD HARRIGAN

IPC分类号： E21B49/00

CPC分类号： E21B49/082

摘要： An apparatus, method and system are provided for characterizing fluid trapped in a subterranean formation using a downhole tool that includes an elongated body and a probe body. The probe body is moveable from and back into the elongated body. The probe body defines a flow line and supports a pressure sensor for measuring fluid pressure in the flow line, a piston and an electrical motor actuator that is adapted to move the piston in order to vary volume of the flow line. The integral electrical motor actuator, piston, pressure sensor and flow line of the probe body can provide for measurement of formation pressure and/or formation mobility.

摘要翻译： 提供了一种装置，方法和系统，用于使用包括细长主体和探针主体的井下工具来表征捕获在地下地层中的流体。 探针主体可以从背部和后部移动到细长体中。 探针主体限定流线并且支撑用于测量流动管线中的流体压力的压力传感器，适于移动活塞以便改变流动管线体积的活塞和电动机致动器。 探头主体的整体电动机致动器，活塞，压力传感器和流动管线可以提供测量地层压力和/或地层流动性。