江苏油田低渗致密砂岩储层综合评价

摘要

Jiangsu Oilfield is a typical small complex fault -block oilfield,in which low permeability tight sandstone reserves occupies the certain proportion.But under the influence of complex ground and underground conditions,it is diffi-cult to develop this kind of reserves,and the development efficiency is poor.The fuzzy comprehensive assessment method was used to carry out the comprehensive evaluation of the tight reservoir.The index parameter systems were established, and the various index weights were determined by the hierarchy analytic process.Thus,it was formed a comprehensive eval-uation method for low permeability tight sandstone reservoirs,which provides the bases for the further effective development of these reservoirs in Jiangsu Oilfield.%江苏油田是典型的复杂小断块油田，低渗致密砂岩储量占有一定的比例。受复杂地面地下条件的影响，这类储量开发难度大，效益差。通过选用模糊综合评价法对致密油藏储层进行综合评价，综合考虑多种因素及江苏此类储层特有的地质开发特点，确定了致密储层综合评价的指标参数体系；结合行业标准建立了各指标的标准体系；运用层次分析法确定了各指标权重，形成了低渗致密砂岩储层的综合评价方法，为下步江苏低渗致密储层的有序、有效开发奠定了基础。