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WTGS February 11, 2020 Luncheon Meeting

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Date(s) - 02/11/2020
11:30 am - 1:00 pm

Midland Country Club Upstairs Ballroom


Reservoir Implications of Desiccation in Unconventional Reservoirs – ‘Soaking’


Stacy McWhorter

Core Laboratories


While investigating organic-rich shales, operators noted an increase in hydrocarbon production and a decrease in water production after well shut-in in some formations and basins. This is contradictory to conventional reservoir expectations following a shut-in. Investigation of this phenomenon was undertaken as a part of various joint industry projects conducted by Core Laboratories, and a working model for the mechanism of clay desiccation and enhanced production through well shut-in was developed and has been verified by some operators.  This talk is designed to discuss common questions about desiccation and soaking, such as how to identify soaking candidates and methods for quantifying the benefits.




Stacy McWhorter graduated from Grantham University with a BS in Engineering Management Technology and a Master’s in Business Administration. She joined Core Laboratories in 2007, and has worked in numerous positions that span the understanding of laboratory data form data generation, quality control, and data synthesis, modeling and applications. Most recently, she has worked on the integration of multidisciplinary datasets to understand the prospectivity of producing fields and formations. She is the principal investigator in understanding desiccation in mudstones and its impact on completion and production. She has managed a highly technical staff and worked on the implementation of numerous software suites in the pursuit of multidisciplinary data analysis, such as having an active role in development of the RAPID database management system and the RAPIDZoom Ultra High Resolution virtual petrography. She has industry-recognized technical expertise in geochemical controls on mudstone properties and applications of this knowledge to reservoir characterization and exploitation.

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