Schlumberger Technology Corporation

Ali Eghbali

Edward Harrigan

Christopher Del Campo

Oivind Brockmeier

Bunker M Hill

Troy Fields

Charles Fensky

Julian J Pop

Srinand Sreedharan Karuppoor

Jean Desroches

Yves Barriol

Frederik Majkut

An apparatus comprising a downhole tool configured for conveyance within a borehole penetrating a subterranean formation, wherein the downhole tool comprises: a probe assembly configured to seal a region of a wall of the borehole; a perforator configured to penetrate a portion of the sealed region of the borehole wall by projecting through the probe assembly; a fluid chamber comprising a fluid; and a pump configured to inject the fluid from the fluid chamber into the formation through the perforator.

Apparatus and methods for characterizing a reservoir

An apparatus and method for characterizing a subsurface formation is provided. The apparatus includes a tool body, a probe assembly carried by the tool body for sealing off a region of the borehole wall, an actuator for moving the probe assembly between a retracted position for conveyance of the tool body and a deployed position for sealing off a region of the borehole wall and a perforator extending through the probe assembly for penetrating a portion of the sealed-off region of the borehole wall. The tool may be provided with first and second drilling shafts with bits for penetrating various surfaces. The method involves sealing off a region of a wall of an open borehole penetrating the formation, creating a perforation through a portion of the sealed-off region of the borehole wall and testing the formation.

Apparatus and method for characterizing a reservoir

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Balikpapan, Indonesia

Ali Eghbali