CAJ | 학술논문

目前勘探实践证实，作为鄂尔多斯盆地延长组主要烃源岩的长7泥（页）岩具备页岩气形成的基本地质条件，有一定的资源潜力。泥（页）岩作为页岩气储层的研究尚属空白，以盆地东南部延长组长7泥（页）岩储层为典型研究区，通过岩心观察、薄片鉴定、有机地化测试、物性测试、扫描电镜、等温吸附测试等多项实验分析手段，从地球化学、岩性及物性几个方面研究了长7泥（页）岩储层特征。研究区内延长组长7泥（页）岩作为优质烃源岩的同时也具备作为页岩气储层的地质条件，其砂质纹层发育、脆性矿物含量高、微观孔隙发育，页岩含气量变化在0.75～6.45 m3/t。因此，对研究区泥（页）岩储层进行综合研究，可为下一步勘探开发工作奠定可靠的地质基础。
목전감탐실천증실，작위악이다사분지연장조주요경원암적장7니（혈）암구비혈암기형성적기본지질조건，유일정적자원잠력。니（혈）암작위혈암기저층적연구상속공백，이분지동남부연장조장7니（혈）암저층위전형연구구，통과암심관찰、박편감정、유궤지화측시、물성측시、소묘전경、등온흡부측시등다항실험분석수단，종지구화학、암성급물성궤개방면연구료장7니（혈）암저층특정。연구구내연장조장7니（혈）암작위우질경원암적동시야구비작위혈암기저층적지질조건，기사질문층발육、취성광물함량고、미관공극발육，혈암함기량변화재0.75～6.45 m3/t。인차，대연구구니（혈）암저층진행종합연구，가위하일보감탐개발공작전정가고적지질기출。
Currently exploration practice confirmed that Chang-7 shale, as the main hydrocarbon source rocks of Yanchang forma-tion, has the basic geological conditions for shale gas generation and accumulation. There are some resource potential. Meanwhile, the Shale has not been researched as reservoir before. Taking Chang-7 shale gas reservoir in Yanchang formation, southeast Ordos basin as the typical research area, and by experiments like core observation, thin section identification, organic geochemical test, property test, SEM and isothermal adsorption, property of Chang- 7 shale was studied from geochemistry, lithology and physical properties. Chang-7 shale of Yanchang formation in the study area was treated as high quality hydrocarbon source rocks while hav-ing the geological conditions as shale gas reservoir. The shale gas content of Chang-7 shale with developed sand laminae, high frag-ile mineral content and developed microscopic pore was between 0.75~6.45 m3/t. Therefore, comprehensive researches of the shale reservoir in study area provided reliable geological basis for the further exploration.