Schlumberger Technology Corporation

John Richard Anthony Pearson

Ahmed Hammami

Todd Yakimoski

John Peter Crawshaw

Philippe Tardy

Ali Fadili

Bemadette Craster

A technique facilitates the logging of hot, subterranean environments with a variety of logging tools. Logging tools with temperature limit ratings may be employed in environments that would otherwise be detrimental to operation of the logging tool due to the heat. The logging tool may be protected through placement of the tool at a desired location within a non-metallic flask. The logging tool also is surrounded with an insulating material and/or a material with a high heat of fusion disposed within the non-metallic flask to increase the time span for operating the logging tool in the hot, subterranean environment.

Logging system and methodology

The invention concerns a method and a system for predicting the apparent flow conductivity of a heterogeneous medium. According to the invention, the following steps are implemented:&#x2014;choosing a flow conductivity element type with a given set of characteristic parameters;&#x2014;determining equations for said flow in said element type;&#x2014;determining a network statistics for said given set of characteristic parameters; and&#x2014;performing a stochastic homogenisation of said equations, for said network statistics. The invention applies more particularly to the predicting of the apparent viscosity of non-Newtonian fluids in a heterogeneous porous medium.

Method and system for predicting the apparent flow conductivity of a heterogeneous medium

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Cambridge, United Kingdom

John Richard Anthony Pearson