PARAMETER CHARACTERISTIC AND ITS APPLICATION OF STATISTICAL EFFECTIVE THICKNESS OF RESERVOIR

Effective thickness is one of the important parameters for reservoirs engineering calculation. It is precondition of evaluating reservoirs rightly to understand the essence of the parameter. In reservoir engineering, the parameter of effective thickness is available from single well base data based on logging data. The characteristics of dynamic, trending greater, time effective and uncertainty are presented based on the general development model of oil reservoirs. In calculating the reserves, multi cases contrast results show the characteristics. The methods to evaluate the reservoirs potential and the plane distribution of reservoirs, based on the effective thickness, are given too. The Lorentz curve method for evaluating the plane distribution of reservoirs has more extensive applicability than the present. They provides the references to evaluate reservoirs based on the parameter in field application.