油藏中CO2矿物捕获能力研究  

Ability of mineral trapping of CO_2 in oil reservoir

作　　者：杨慧心[1] 李春先[2] 于淼[1] 张曙光[3] 李轩 张颖 刘立[1] YANG Hui-xin LI Chun-xian YU Miao ZHANG Shu-guang LI Xuan ZHANG Ying LIU Li(College of Earth Sciences, Jilin University, Changchun 130061, China The 108 Prospecting Team of Coal Geology of Heilongjiang Province, Jixi 158100, Heilongjiang, China State Key Laboratory of EOR, Research Institute of Petroleum Exploration ＆ Development, Beijing 100083, China Department of Geology and Geophysics, Missouri University of Science and Technology, Missouri 65401, USA)

机构地区：[1]吉林大学地球科学学院,长春130061 [2]黑龙江省煤田地质一〇八勘探队,鸡西158100 [3]中国石油勘探开发研究院提高石油采收率国家重点实验室,北京100083 [4]密苏里科技大学地质学与地球物理学系,美国密苏里州65401

出　　处：《世界地质》2016年第4期1169-1177,共9页World Geology

基　　金：国家科技重大专项课题(2011ZX05016-002);国家自然科学基金项目(41372133);中国地质调查局工作项目(12120113006300);吉林大学研究生创新基金资助项目(2015033)联合资助

摘　　要：利用TOUGHREACT软件,根据示范工程实验区大情字井的地层条件,针对含油及非含油储层哪一条件更适宜CO_2地质储存,设置了盐水组与含油组两组方案进行对比模拟。结果显示,含油组地层水中主要离子浓度及总矿化度低于盐水组,主要固碳矿物片钠铝石的生成量和CO_2的封存量明显小于盐水组。残余油的存在降低了矿物与水溶液进行离子交换的比表面积和储层的含水饱和度,并且占据矿物沉淀空间。尽管水岩作用受限,但油藏仍然可完成CO_2地质封存,且诸多优点表明油藏仍是CO_2地质封存的有利场所。Based on the geological conditions of Well Daqingzi in the demonstration project area,the authors used TOUGHREACT to design two schemes including oil group and saline group,to explore oil reservoirs and nonoil reservoirs,which is more suitable for CO2 geological storage.The results show that the main ion concentration and total salinity of the formation water in the oil bearing group is lower than that of the saline group,so do the amount of dawsonite which is the main mineral for CO2 geological storage,and the CO2 mineral trapping in the oil group.The existence of the residual oil reduced the specific surface area and water saturation for the ion exchange between the mineral and the formation water,and occupied the space of mineral deposits.Though water-rock interaction is limited,CO2 geological storage can be completed in oil reservoir,and there are many advantages showing that oil reservoir is still beneficial for CO2 geological storage.

关 键 词：CO_2地质储存 矿物捕获 数值模拟 残余油 

分 类 号：P618.13[天文地球—矿床学]