收藏本站   | English

页岩气资源评价方法与关键参数探讨

来源:本站 日期:2012-10-23 浏览量:
页岩气资源评价方法与关键参数探讨
 
Methods and key parameters of shale gas resources evaluation
 
【作者】 陈新军; 包书景; 侯读杰; 毛小平;
 
 
【Author】 Chen Xinjun1,Bao Shujing1,Hou Dujie2,Mao Xiaoping2 (1.Sinopec Research Institute of Petroleum Exploration and Production,Beijing 100083,China; 2.School of Energy,China University of Geosciences,Beijing 100083,China)
 
【机构】 中国石化石油勘探开发研究院; 中国地质大学(北京)能源学院;
 
【摘要】 研究页岩气资源的评价方法及关键参数,以准确评价页岩气资源潜力。在勘探程度相对较高的地区,推荐以体积法为主、类比法为辅进行资源评价;在勘探程度较低的地区,推荐采用类比法进行资源评价。提出了"含气泥页岩系统"的概念,并将其作为评价单元计算泥页岩厚度。含气泥页岩系统是指由上下致密层封挡的同一压力系统内的岩性组合,主要由富有机碳的泥页岩和砂岩、碳酸盐岩夹层构成,有含气泥页岩的测井响应特征,顶、底板为致密岩层,含气层段连续厚度大于30 m,内不含明显的水层。根据勘探程度和资料丰富程度的不同,可采用不同方法获得含气泥页岩系统的厚度;在勘探程度较高、资料较丰富的地区,可以利用测井资料和有机碳含量较准确计算其厚度;在勘探程度低或者特低的地区,可以通过野外地质剖面、地震剖面、沉积特征等资料,使用类比法来推算含气泥页岩系统的厚度。 更多还原
 
 
【Abstract】 Methods and key parameters of shale gas resources evaluation are studied so as to accurately assess the potential of shale gas resources.In much-explored areas,the volume method,followed by the analogy method,is recommended for evaluation;in less-explored areas,the analogy method is recommended.The concept of "gas-bearing shale system" is put forward and taken as an evaluation unit to calculate the thickness of shale.It refers to the lithologic assemblage sealed by upper and lower tight layers in one pressure system,composed of organic carbon-rich shale and the interbeds of sandstones and carbonates,featuring the logging responses of gas-bearing shale,with tight rocks at top and bottom,and the continuous thickness of gas-bearing interval being more than 30 m and no obvious water layer.According to exploration degree and available data,different methods may be selected to calculate the thickness of gas-bearing shale system.The logging data and the content of organic carbon are used in the areas with high degree of exploration and abundant data,while field geological profile,seismic profile,depositional characteristics and other data are considered in areas with low or ultra-low degree of exploration. 更多还原
【关键词】 页岩气; 资源评价; 含气泥页岩系统; 泥页岩厚度;
【Key words】 shale gas; resources evaluation; gas-bearing shale system; shale thickness;
【基金】 中国石化页岩油气资源评价与选区专项(YYYQ-ZP-01)
 
浏览全文请点击【阅读全文】。