ICMS'2000

The International Conference on Multiphase Systems, ICMS'2000
Ufa, RUSSIA, June 15-17, 2000

Fedorov K. M., Kadochnikova L. M.

Tyumen State University, Surgutneftegas Research Institute, Tyumen, Russia

This paper presents an analytical technique for simulation and analysis of gel treatment process in a stratified oil reservoir. Calculations were performed with multicomponent 1-D simulator in each layer of a reservoir that has the facility to describe the gelation of Na2SiO3 + CaCl2 reagent due to high reservoir temperature (temperature initiation) or/and low pH value in a porous media. Kinetics of these reactions were analysed in experiments, kinetic constants were obtained.

Simplified axial problems of reagent propagation and gelation in near well watersaturated zone of a reservoir were considered. Analytical solutions of linear problems in one isolated layer were obtained. Analytical technique for simulation of gel treatment in a stratified reservoir was generated. Proposed technique was tested by a comparison with four case histories of profile improvement in injection wells using gel treatment.