离子扩散技术及其在页岩储层水力压裂裂缝表征中的应用研究进展  

Research and Development of Ion Diffusion Technology and Its Application in Characterizing Hydraulic Fractures in Shale Reservoirs

作　　者：王子元 于文强 孙颖[1] WANG Ziyuan;YU Wenqiang;SUN Ying(Petroleum Engineering,Xi′an Shiyou University,Xi′an 710065,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《山东化工》2025年第1期122-124,127,共4页Shandong Chemical Industry

摘　　要：我国页岩油气储量丰富,离子扩散在页岩储层水力压裂过程中作用显著,但相关应用研究尚不系统。本文结合理论分析与现场案例,概述了离子扩散的实验方法和模型研究进展,总结了离子扩散相关的储层特性,分析了其在体积压裂中的应用及裂缝网络复杂程度的表征方法,并比较了不同裂缝表征方法,提供了具体施工案例。离子扩散相关的储层特性包括丰富的微纳米孔隙、超低含水饱和度、高水矿化度和层理发育;离子扩散裂缝表征法具有实时、简便、经济、环保及数据直观的优点;最后,通过霍恩河盆地案例展示了离子扩散法在评估裂缝网络复杂度中的应用效果,验证了其在评估裂缝网络发育、优化压裂设计和提高开采效率方面的有效性。China has rich shale oil and gas reserves,and ion diffusion plays a significant role in the hydraulic fracturing process of shale reservoirs.However,research on the application of ion diffusion in fracturing processes is not yet systematic.This paper combines theoretical analysis with field case studies to summarize the experimental methods and model research progress of ion diffusion,outlines reservoir characteristics related to ion diffusion,and analyzes its application in volumetric fracturing and characterization of fracture network complexity.The paper also compares different fracture characterization methods and provides specific construction cases.Characteristics related to ion diffusion include abundant micro-nano pores,ultra-low water saturation,high water salinity,and well-developed bedding.The ion diffusion fracture characterization method offers real-time,simple,cost-effective,environmentally friendly,and intuitive data advantages.Finally,a case study from the Horn River Basin demonstrates the effectiveness of the ion diffusion method in assessing fracture network complexity,confirming its effectiveness in evaluating fracture network development,optimizing fracturing design,and improving extraction efficiency.

关 键 词：页岩储层 离子扩散 储层特性 压裂缝网 表征方法 

分 类 号：TE348[石油与天然气工程—油气田开发工程]