非均质油田储量计算方法与技术

METHODS AND TECHNIQUES OF PETROLEUM RESERVES CALCULATION FOR HETEROGENEOUS OIL FIELD

中国东部油田通常以断层多、储层高度非均质为特点。传统上,计算该类油田储量时,其储量参数的求取,往往取决于某些取芯井资料,这势必掩盖了油田的非均质性。为了尽可能地揭示非均质油藏全部地质特征,从根本上评价高度非均质油藏,本文以枣园油田为例,针对非均质断块油田地质特点,在对其进行整体研究、描述基础上,通过合理划分计算单元,利用岩芯、测井资料精确确定储量参数,探讨了非均质油田储量计算的方法、流程及关键技术。

Eastern China oil fields are usually characterized by considerable faults and high reservoir heterogeneity.Traditionally,the calculation of reserves and acquisition of reservoir parameters often depend on core data of some wells.So,the heterogeneity of an oil field will be concealed. In order to reveal all the geological characteristics of high-heterogeneous reservoirs to the best of the authors' ablity and make a fundamental evaluation of such reservoirs,with the Zaoyuan oil field as an example,a full study and description have been made of the geological features of the heterogeneous fault block oil fields,reserves parameters have been exactly determined through dividing the field into rational calculation units and using core logging data,and the methods,flow and key techniques of reserves calculation of these kinds of oil fields have been studies.