STUDY OF FILTRATION REGIMES IN DEFORMED C ARBONATE RESERVOIRS

Carbonate oil deposits are described by different models of fractured reservoirs. Development process causes their deformations, which are d etermined by the elastic properties of the reservoir and surrounding r ocks to a great extent. The character of those deformations is determi ned and recommendations about expedient values of down-hole and reserv oir pressures are given on the base of pilot tests. Mathematical model of fluid injection and in-flow with consideration of reservoir deform ations is elaborated. It's reliability is proved by matching of the co mputations results for reservoirs with different elastic properties wi th experimental data. Computations show that there is a range of depre ssion values within which development of the carbonic reservoirs proce ss would be the most effective from both technological and economical points of view.