Schlumberger Technology Corporation

Marc Allcorn

David Milton Eslinger

John R Lovell

Gokturk Tunc

Frank F Espinosa

Warren Zemlak

Luis F Peixoto

Steven Harrison

Andrew Prestridge

Rod W Shampine

Matthew R Hackworth

Hubertus V Thomeer

John David Rowatt

Randolph J Sheffield

Mark Callister Oettli

Bartley Patton

Thomas Allan

Devin Rock

James Michael Costley

Brent Nickerson

Takahiro Kosaka

Matt Rouse

Jing Hayes Chow

A method and apparatus for testing a multi-zone reservoir while reservoir fluids are flowing from within the wellbore. The method and apparatus enables isolation and testing of individual zones without the need to pull production tubing. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It may not be used to interpret or limit the scope or meaning of the claims.

Methods, systems and apparatus for coiled tubing testing

A technique for utilizing a coiled tubing rig improves its operation and functionality. The coiled tubing rig is adapted to enable improved operation in a variety of harsh environments. The coiled tubing rig also may comprise features that facilitate the interchangeability of well tools, e.g. the interchangeability of bottom hole assemblies, to lower operational cost and to increase the efficiency with which a variety of well related operations can be performed.

Coiled tubing rig

To perform a cleanout operation in a wellbore, a cleaning tool having a coiled tubing and an electrical pump assembly is run into the wellbore. The electrical pump assembly that is located in the wellbore is activated. In response to fluid flow generated by the electrical pump assembly, removal of debris from the wellbore is caused by directing fluid containing the debris into the coiled tubing for delivery to an earth surface.

Providing a cleaning tool having a coiled tubing and an electrical pump assembly for cleaning a well

A method of machining a workpiece in a subterranean wellbore comprises the steps of: (a) providing a workpiece that comprises (1) a first section that comprises a first material, and (2) a second section that comprises a second material, the second section forming at least one surface of the workpiece; (b) placing the workpiece in a subterranean wellbore that is surrounded by a geologic formation; and (c) machining the workpiece to remove at least part of the second material in the second section, whereby at least one surface of the workpiece is formed into a desired configuration. This method allows, for example, a landing nipple to be installed in a wellbore, and customized locking recesses to be formed in the inner surface of the nipple at a later time.

Downhole machining of well completion equipment

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Sugar Land, TX, United States of America

Marc Allcorn