Published May 2011
About determination of recoverable reserves on characteristics of the displacing oil by water
A.M. Mamed-zadehWhile intensification of oil recovery process by water injection, watery products of the wells is natural and inevitable factor. The choice of hydrodinamical influences is defined on the basis of the deposits geological construction analysis, development date, results of the commercial investigation and usage factor. Herewith, it is important to take into account interrelation injection and gaining boreholes, as well as the last between themselves. The oil layers production degree, as well as way of the advancement and filtering liquids in development process as a rule is defined in the results of hydrodynamical and geophysical surveys. Under unchangeable system of the development oil recovery is forecasted via empirical methods. In article is offered one of the well-known and reliable ways of the determination of recoverable oil reserves which can be advanced by restrictions of the period to usages of deposits annual at most-profitable selection of oil. Via investigation of well wetting character it is possible to define the water bottomhole zone passing way into the well. On example Balachany-Sabunchy-Ramana deposits in article is shown track record of the oil recovery and water injection on III horizon. The final record conclusion is made about piston displacing oil by water. During artificial injecting deposits naturally appears purely technical question, when it is necessary to stop: in tag ends of the deposits development together with cessation of recovering oil or earlier.
