一种泥页岩脆裂性质表征方法及其地质意义  

One kind of brittle shale characterization method and its geological significance

作　　者：鲍云杰[1,2] 杨振恒[1,2] 杨琦[1,2] 陈红宇[1,2] 付小东[1,2] 王杰[1,2] 

机构地区：[1]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所.江苏无锡214126 [2]中国石油化工集团公司油气成藏重点实验室,江苏无锡214151

出　　处：《石油实验地质》2013年第6期694-697,共4页Petroleum Geology & Experiment

基　　金：中国石化江汉油田分公司科研项目“湘鄂西地区河页1井页岩含气性研究”(G0605-10-ZS-0041)资助

摘　　要：提出了一种泥页岩脆裂性质的表征方法——脆裂指数法,介绍了脆裂指数的测定流程和步骤。这种方法操作简便、对样品的大小、外形无特殊要求,对于泥页岩样品测试具有普遍意义。实验数据表明,泥页岩脆裂指数与孔隙度、比表面积大小呈正相关关系。从测定流程、方法、实验数据以及文献分析来看,泥页岩脆裂指数具有表征孔隙发育程度及其内部结构,尤其是微孔隙、微裂隙的潜在应用价值。初步探讨了脆裂指数在表征泥页岩内部结构性质以及气体解吸行为研究等方面的应用前景。The paper presents one kind of brittle shale characterization method ： brittle index, and introduces the determination process and procedure for the index. This method is simple to operate, and has no special require- ments for sample size and shape, hence has universal significance for shale sample test. Experimental data show that the brittle index is positively correlated to porosity and specific surface area. According to measurement process, method, experimental data and literature analysis, the brittle index can characterize the extent and in- ternal structure of porosity, especially the potential application for micro pores and cracks. The prospects for the application of brittle index in the studies of shale internal structure and gas desorption are discussed preliminarily.

关 键 词：脆裂性质 脆裂指数 比表面积 解吸 泥页岩 页岩气 

分 类 号：TE122.2[石油与天然气工程—油气勘探]