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Development of a Robust Correlation to Determine an Oil Production Rate through Vapor ExtractionNormal access

Authors: M.A. Ahmadi and Z. Chen
Event name: 81st EAGE Conference and Exhibition 2019
Session: Unconventional II
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201901650
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 482.85Kb )
Price: € 20

Due to high heavy oil viscosity, conventional oil recovery methods such as water flooding and gas flooding have an adverse mobility ratio between an injection fluid and a reservoir fluid; therefore, they malfunction in the production of heavy oil reservoirs. Hence, other oil recovery methods should be utilized to produce heavy oil. One of the robust methods in heavy oil recovery is vapor extraction (VAPEX). Huge efforts have been made to establish a novel approach to calculate an oil production rate in VAPEX method. In this work, a Gene Expression Programming (GEP) approach is carried out, and extensive experimental datasets reported in the literature are employed to develop, test and validate the correlation developed here. All the input variables of the new correlation are dimensionless numbers including Schmidt (Sc) and Peclet (Pe) numbers. The statistical criteria show the promising performance and accuracy of this correlation in the calculation of the oil production rate in VAPEX method. This correlation is capable to apply in a wide range of conditions and also can be incorporated in a heavy oil reservoir simulation software products.

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