碳酸盐岩储层影响因素及产能评价方法探讨

针对碳酸盐岩储层原生生物活动影响和孔隙结构变化影响两个方面,分析了碳酸盐岩储层产能评价的复杂性,评介了不同识别精度下产能评价所使用的技术方法。认为决定碳酸盐岩储层性质和质量的重要因素是成岩前期生物活动影响和成岩后期孔隙结构变化,包括溶蚀作用和白云岩化作用所形成的次生孔隙。在产能评价实践过程中,针对不同目标的评价期望,使用不同识别精度的技术方法,更有利于得到理想的评价结果。

The Influential Factors of Carbonate Reservoirs and Their Productivity Evaluation Methods

In allusion to the aspects of influence of protist activity and pore structural changes in carbonate reservoirs,the complexity of productivity evaluation on carbonate reservoirs were analyzed,the methodologies of the productivity evaluation were evaluated under different recognition accuracies.It was considered that the important factors determining the property and quality of carbonate reservoirs included the influence of organism activity at initial stage and the pore structural changes at the late stage,as well as the secondary pore structure induced by erosion and dolomitisation.In the practice of productivity evaluation,based on different evaluation purposes,it is beneficial for obtaining more ideal results by using the methodologies with different accuracies.