川东北礁滩相碳酸盐岩储层酸化工艺优化  

Optimization of Reef-shoal Facies Carbonate Reservoir Acidizing in Northeast Sichuan

作　　者：王海波 张琴 李沁[2] 刘旭 WANG Haibo;ZHANG Qin;LI Qin;LIU Xu(Institute of Energy Geological Survey of Sichuan Province,Chengdu 500643,China;College of Energy,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]四川省能源地质调查研究所,成都500643 [2]成都理工大学能源学院,成都610059

出　　处：《科技和产业》2024年第19期244-250,共7页Science Technology and Industry

摘　　要：川东北地区的礁滩相碳酸盐岩气藏孔隙度和渗透率差异性大,非均质性强,储层酸化工艺设计方案针对性不强。利用酸液有效作用距离和酸蚀裂缝导流能力计算模型,建立一套酸化效果预测图版和工艺参数优选方法。结合川东北礁滩相碳酸盐岩储层特征,开展不同类型储层的酸化工艺参数优化设计,并进行现场实例验证。研究工作不仅对川东北礁滩相碳酸盐岩的高效开发具有指导意义,也为类似地质条件下的碳酸盐岩储层酸化工艺优化提供了理论和实践参考。The difference of porosity and permeability of rear-flat carbonate gas reservoirs in northeast Sichuan is very great,the heterogeneity is strong,and the pertinence of acidizing process design is not strong.Based on the calculation model of the effective distance of acid solution and the conductivity of acid corrosion crack,a set of prediction chart of acidizing effect and optimization method of process parameters are established.Based on the characteristics of reef-flat carbonate reservoirs in northeast Sichuan,the optimum design of acidizing process parameters for different types of reservoirs was carried out,and the field case was verified.The work not only has guiding significance for the efficient development of reef-flat carbonate rocks in northeast Sichuan,but also provides theoretical and practical reference for the optimization of acidizing process of carbonate rocks under similar geological conditions.

关 键 词：川东北 礁滩相 碳酸盐岩 酸化工艺 

分 类 号：TE358.2[石油与天然气工程—油气田开发工程]