建南构造东岳庙段页岩气层岩心试验研究  

Experimental Study on Shale Gas Cores in Dongyuemiao Area of Jiannan Structure

作　　者：冯爱国[1] 张建平[1] 赵红燕[1] 石元会[1] 任元[1] 李光华[1] 

机构地区：[1]中石化江汉石油工程有限公司测录井公司,湖北潜江433123

出　　处：《石油天然气学报》2014年第4期38-43,5,共6页Journal of Oil and Gas Technology

基　　金：中石化石油工程技术服务有限公司科技攻关项目(SG1305)

摘　　要：建南构造建111井区是中国石油化工集团公司首个实现页岩气商业开发的区块。为了掌握和深入研究建南构造页岩气的储层特征和富集规律，对建页HF1井下侏罗统自流井组东岳庙段（J1Z3）564．0～649．0m连续取心83．5m并进行岩心试验研究。结果表明：孔隙度集中分布在1．0％～4．0％（平均2．5％），渗透率为0．004～12．0mD（平均0．6roD），呈特低孔、特低渗特征；总有机碳质量分数为0．4％～3.2％（平均1．3％），热演化程度为0．8％～1．5％，有机质类型以Ⅱ。型为主，地化指标处于有利的勘探范围之内；脆性矿物体积分数平均62．2％，泊松比平均0．21，弹性模量平均30．0GPa，综合脆性指数平均51．7％，压裂易于形成网络裂缝；天然气成分以甲烷为主，不含硫化氢。试验结论对建南构造页岩气勘探开发产能建设，以及国内同类页岩气勘探具有重要的指导作用。Wellblock J111in Jiannan Structure was a first block of commercial development for shale gas in SINOPEC. In order to grasp and deeply study the shale gas reservoir characteristics and its enrichment rules in Jiannan Structure, continuous coring of 83.5min 564.0~649.0min Dongyumiao section of Ziliujing Formation was performed in Well JY HF-1and cores were tested.The core experimental analysis showed that the porosity was distributed at a range of 1% ~4%,average was 2.5%,permeability was 0.004~12.0mD with average of 0.6mD,it was characterized by low porosity and low permeability,the organic carbon content was 0.4%~3.2% with an average of 1.3%,the thermal evolution degree was 0.8%~1.5%,organic matter type was TypeⅡ1,geochemical index was within the range of favorable exploration level,the brittle mineral content was average of 62.2%,Poissons ratio was 0.21on an average, Youngs modulus was average of 30.0GPa,comprehensive brittleness index was average of 51.7%,fracture was easy to form network cracks,the natural gas composition was mainly methane without containing hydrogen sulfide.The experimental results provide guidance for exploration and development of shale gas in Jiannan Structure and as well as for the similar shale gas exploration in our country.

关 键 词：建南构造 东岳庙段 页岩气 岩心试验 

分 类 号：P618.13[天文地球—矿床学]