储层成岩数值模拟研究现状及进展

发布时间：2018-04-09 17:51

本文选题：成岩数值模拟　切入点：孔隙度演化模拟　出处：《中国矿业大学学报》2017年05期

【摘要】：从储层成岩环境参数、物理化学作用和孔隙度演化3个方面进行数值模拟研究.通过对层序地层格架/沉积微相框架下的成岩数值模拟研究、不同时期流体与岩石相互作用下的效应数值模拟研究、沉积模拟和成岩作用模拟相结合的成岩数值模拟研究、成岩物理模拟和成岩数值模拟的融合研究、基于构造-沉积-成岩相融合的成岩数值模拟研究,阐述了成岩数值模拟技术包括基于成岩环境参数研究的储层成岩相演化预测、基于流体-岩石相互作用的物理化学作用、基于沉积模拟和成岩作用模拟相融合的成岩数值模拟和基于成岩作用的储层响应特征.研究结果表明:1)正演盆地模拟和成岩作用模块相互耦合的孔隙度演化模拟技术,重现孔隙演化过程,可准确地评价出孔隙度空间差异性,评价出低渗-致密储层"甜点"空间分布;2)流体-岩石相互作用下的效应数值模拟,研究地质体矿物组分空间差异性条件下的流体-岩石相互作用,揭示储层"溶蚀次生孔隙"型和"原生+溶蚀"型"甜点"的成因机制及响应特征;3)分级次、分类型、按照不同尺度构造-沉积-成岩"三相"融合的成岩数值模拟一体化技术,可评价出低渗-致密储层"甜点"空间分布、控制因素和油气富集规律.
[Abstract]:Numerical simulation of reservoir diagenetic environment parameters, physicochemical processes and porosity evolution is carried out.The numerical simulation of diagenesis under the framework of sequence stratigraphic framework / sedimentary microfacies, the numerical simulation of the effects of fluid and rock interaction in different periods, and the diagenetic numerical simulation combined with sedimentary simulation and diagenesis simulation are carried out.The integration of diagenetic physical simulation and diagenetic numerical simulation, and the diagenetic numerical simulation based on tectonic-deposition-diagenetic facies fusion are studied. The diagenetic facies evolution prediction of reservoir is discussed in this paper, which includes diagenetic environment parameters.Based on physicochemical interaction between fluid and rock, diagenesis numerical simulation based on sedimentary simulation and diagenesis simulation and reservoir response characteristics based on diagenesis are presented.The results show that the forward basin simulation and diagenesis module coupled porosity evolution simulation technique can reproduce the pore evolution process and accurately evaluate the spatial difference of porosity.The effects of fluid-rock interaction in low-permeability and dense reservoirs are evaluated under the fluid-rock interaction, and the fluid-rock interaction under the condition of spatial difference of mineral components in geological bodies is studied.It is revealed that the formation mechanism and response characteristics of "secondary pores" and "primary dissolution" of reservoirs are classified and classified into three types.According to the integration technique of diagenetic numerical simulation of structure-deposition-diagenesis "three-phase" fusion at different scales, the spatial distribution, controlling factors and oil and gas enrichment law of low-permeability and dense reservoirs can be evaluated.
【作者单位】：中国石油大学(华东)地球科学与技术学院;山东省油藏地质重点实验室;中石油油气储层重点实验室中国石油大学(华东)研究室;
【基金】：国家科技重大专项(2016ZX05027-004-002,2016ZX05031001-001-003) 国家自然科学基金项目(41602135)
【分类号】：P618.13

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