Schlumberger Technology Corporation

Melanie Jensen

Oliver Clinton Mullins

Li Chen

Julian J Pop

Sandip Bose

Lalitha Venkataramanan

Denise E Freed

Jeffrey Miles

Peter Tilke

Kashyap Gupta

Anirban Mondal

A method to offer insight on reservoir compartmentalization through the automation of single- and multi-well formation pressure analysis. The method specifically accounts for the measurement uncertainty and any prior information about the reservoir to draw evidence on at least one of a fluid type, a locating feature of the at least one fluid body, vertical compartmentalization, and lateral compartmentalization.

Automated analysis of pressure data

Processes and systems for determining asphaltene equilibrium between two or more downhole geographic locations are provided. In some embodiments, the process can include measuring one or more fluid properties of a plurality of fluid samples at varying downhole depths to generate a one or more downhole fluid analysis measurement data points; selecting an asphaltene diameter distribution based on prior knowledge; utilizing the asphaltene diameter distribution to fit a first set of one or more equation of state curves to the one or more downhole fluid analysis measurement data points to define a first model of fitted equation of state curves and to determine one or more posterior distributions of asphaltene diameters; and determining if the varying downhole depths are in an asphaltene equilibrium by determining whether the one or more posterior distributions of asphaltene diameters is consistent with that of asphaltenes in equilibrium.

Processes and systems for determining if downhole fluids are in equilibrium or non-equilibrium

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Cambridge, MA, United States of America

Melanie Jensen