Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Anthony Goodwin

Oliver Clinton Mullins

Soraya Sofia Betancourt

Terizhandur S Ramakrishnan

Alexander F Zazovsky

Jacques R Tabanou

Christopher Del Campo

Cosan Ayan

Peter S Hegeman

Bhavani Raghuraman

Ricardo Vasques

Ronald E G Van Hal

Kambiz A Safinya

Francois Xavier Dubost

Julian J Pop

Tarek M Habashy

Carlos Abad

Edward Harrigan

Li Jiang

Eric P Donzier

Lawrence James Leising

Chengli Dong

Go Fujisawa

Fikri John Kuchuk

Austin Boyd

Erik Quam

Christian Straley

Sarah Elizabeth Pelham

Hani Elshahawi

Olivier Faivre

Fernando Mattos

Maria Manrique

Gerry Meeten

Saygi Gokhan

Ian Falconer

Amy Simpson

Ernest N Sumrall

Charles Flaum

Robert Badry

Shawn Taylor

A method for sampling fluid in a subterranean formation includes reducing a viscosity of the fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of the fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurized by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

Methods and apparatus to sample heavy oil in a subterranean formation

A method for sampling fluid in a subterranean formation includes, reducing a viscosity of a fluid, pressurizing a portion of the subterranean formation and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

A formation fluid sampling tool is provided with reactants which are carried downhole and which are combined in order to generate heat energy which is applied to the formation adjacent the borehole. By applying heat energy to the formation, the formation fluids are heated, thereby increasing mobility, and fluid sampling is expedited.

Formation fluid sampling tools and methods utilizing chemical heating

Apparatus and methods to analyze downhole fluids are described herein. A disclosed example method involves obtaining a sample of a downhole fluid. Additionally the example method involves ionizing at least a portion of the sample to decompose molecules having a relatively high molar mass into molecules having a relatively lower molar mass. Further, the example method involves analyzing the ionized portion of the sample to determine a parameter of the downhole fluid sample.

Apparatus and methods to analyze downhole fluids using ionized fluid samples

Evaluating a subterranean formation fluid by lowering a testing tool to a depth in a wellbore formed in a subterranean formation, limiting wellbore fluid convection near the depth with the testing tool, heating formation fluid in the subterranean formation near the depth, obtaining a sample of the heated formation fluid from the subterranean formation, and evaluating at least a portion of the sample of heated formation fluid obtained from the subterranean formation.

Well thermal insulation for formation sampling of viscous fluids and methods of use thereof

An example instrumented formation tester for injecting fluids and monitoring of fluids described herein includes a downhole tool which can be deployed in a wellbore via a wireline or a drill string. The downhole tool may facilitate the injection of fluids into an underground formation, and the monitoring of the directions in which the injected fluids flow in the formation in an open hole environment. In particular, the downhole tool may be configured for removing the mud cake from a portion of the wellbore wall for facilitating a fluid communication with the formation to be tested.

Instrumented formation tester for injecting and monitoring of fluids

Apparatus and methods to analyze downhole fluids are described herein. A disclosed example method involves obtaining a sample of a downhole fluid, and depressurizing at least a portion of the sample. Additionally, a disclosed example method involves ionizing at least the portion of the sample, and analyzing the ionized portion of the sample to determine a parameter of the downhole fluid.

Micro-Electro Mechanical Systems (MEMS) based fluid sensors adapted to measure physical properties of oilfield reservoir fluids under downhole conditions. Certain embodiments of the invention may be characterized as a MEMS based reservoir fluid sensor adapted for downhole conditions having a planar member machined from a substrate material, an electrical conductor formed at least partly on the planar member; and a gauge formed on the planar member and adapted to measure a physical effect on the planar member, the physical effect being indicative of a property of a fluid in contact with the planar member.

Fluid property sensors

Methods and apparatus for investigating a hydrocarbon bearing geological formation traversed by a borehole are disclosed. A borehole tool is used to acquire a sample of fluid in the formation. Compositional analysis of the fluid sample is conducted to provide a determination of the composition of the sample. The sample composition is then related to a model of the thermodynamic behavior of the fluid; i.e., the mass fractions of the fluid components are used as inputs to an equation of state (EOS) to predict the phase behavior of the fluid.

Methods and apparatus for the downhole characterization of formation fluids

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Sugar Land, TX, United States of America

Anthony Goodwin