川西低孔低渗储层参数评价

川西Y地区低孔低渗储层具有物性差、岩性多变、储集空间类型多样和孔隙结构复杂等特征,传统的储层参数测井评价方法在多方面受到限制,储层参数测井评价已经成为制约储层测井评价的主要因素。通过储层基本特征分析,基于储层物性、孔隙结构特征及概率理论,形成了一套系统的储层参数评价方法。实际应用表明,该套方法不仅大大提高了低孔低渗储层参数评价可靠性,而且扩大了模型的应用范围。

Parameter evaluation for low-porosity and low-permeability reservoirs in western Sichuan

Low-porosity and low-permeability reservoirs in western Sichuan are characterized in poor physical property,inconstant lithology,diversified reservoir space type and complex pore structure.Thus,the traditional methods of well logging evaluation in reservoir parameters are limited in many ways,which is the main factor in restriction of the reservoir evaluation.Based on the basic character analysis of reservoirs such as physical property,pore structure and probability theory,a set of evaluation methods of reservoir parameters is established and developed.Practical application showed that these methods not only greatly improved the dependability of parameters evaluation,but also enlarged the application range of model in low-porosity and low-permeability reservoirs.