摘要
鄂尔多斯盆地东南部延长组富有机质页岩形成于陆相湖盆环境,属于典型的陆相页岩地层,在目前的页岩气地质评价和研究中,尚无系统方法及相关标准,国外评价方法也差异较大。通过对研究区延长组长7段和长9段富有机质黑色页岩的一系列测试,总结出目标层位的有机质特征、矿物组成、孔隙结构和分布特征,并讨论了上述特征之间的相互关系,明确了影响孔隙发育的主要因素。最后,讨论饱和吸附量与上述特征的相关性,探明了控制该页岩储层吸附量的因素。
The shale bed rich in organic matter of Yangchang Formation of Southeast of Ordos Basin was originated in continental lake basin environment and belongs to typical continental shale formation.In current evaluation and study,there are no systematic methods and criteria both at home and abroad.Based on a serious of monitoring for the black shale rich in organic matter of Member Chang 7 and Member Chang 9 of the studied area,the organic matter feature,mineral composition,pore structure and distribution feature of the object horizons are summarized;the relations among the features mentioned above are discussed;the key factors affecting pore growing is determined.Finally,the relations of saturated absorbance with the features mentioned above are discussed and the factors controlling the absorbance shale bed reservoirs are identified.
出处
《特种油气藏》
CAS
CSCD
北大核心
2013年第1期23-26,152,共4页
Special Oil & Gas Reservoirs
基金
国土资源部油气资源战略研究中心项目"全国页岩气资源战略调查先导试验区:黔北地区页岩气资源战略调查与选区"(2009GYXQ15-03)
关键词
富有机质页岩
储层特征
控制因素
延长组
鄂尔多斯盆地
shale rich in organic matter
reservoir characteristics
control factor
Yanchang Formation
Ordos Basin
