Chevron U.s.a. Inc.

Xundan Shi

Dengen Zhou

Baris Guyaguler

Choongyong Han

Christian Wolfsteiner

Yih-Bor Chang

Sheng Luo

Shihao Wang

An equation state with a mixing rule that captures a multi-component layering within nanopores may be used to model (1) fluid mixture in the nanopores of the reservoir and (2) movement of fluid between the nanopores and large pores of the reservoir. Such modeling of fluid behavior in large pores and nanopores of the reservoir may enable more accurate simulation of the reservoir (e.g., for hydrocarbon recovery).

Fluid modeling with nano-scale pore size effects for a reservoir

A method for simulating a microemulsion system in a chemical enhanced oil recovery process is disclosed. The method includes receiving a geological model of a subsurface reservoir that defines a grid having a plurality of cells, determining a surfactant concentration for each cell based on a volume of surfactant and a volume of water within the cell and independently from a volume of oil in the cell, and simulating fluids flowing in the subsurface reservoir. Results from simulation can be used to optimize a chemical enhanced oil recovery process in a subsurface reservoir.

Process for optimized chemical enhanced recovery

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Houston, TX, United States of America

Xundan Shi