陇东城壕—南梁地区长6储层特征研究  

RESEARCH ON TRIASSIC CHANG 6 RESERVOIR IN CHENGHAO-ANLIANG AREA

作　　者：朱小燕[1] 孙卫[2] 李建霆[1] 刘宏义[1] 李爱琴[3] 刘一仓[1] 田随良 胡建基[1] 

机构地区：[1]长庆油田分公司第二采油厂地质研究所,甘肃庆阳745100 [2]西北大学地质学系,陕西西安710069 [3]长庆油田分公司勘探开发研究院,陕西西安710021 [4]长庆录井公司,陕西西安710021

出　　处：《天然气地球科学》2007年第6期903-907,共5页Natural Gas Geoscience

摘　　要：陇东城壕—南梁地区位于鄂尔多斯盆地最有利的生油区内,是近几年陇东油田重点勘探和评价的区块之一,而中生界三叠系延长组长6油层组是该区块重要的勘探目标层位和产油层位。通过对城壕—南梁地区长6储层的岩石学、孔隙类型和储层非均质性分布特征的研究,认为城壕—南梁地区长6储层物性、含油性差异大、非均质性强;区内广泛发育的水下分流河道沉积微相砂岩具有孔隙度和渗透率都较好的物性条件,是有利的油气聚集场所。Chenghao-Nanliang area is one of the key blocks of exploration and evaluation in the Longdong oilfield in recent years. It is located in the most favorable oil-generation area in the Ordos basin with Chang 6 sand-bodies developed. Through the research of petrology, pore type and heterogeneity pattern on the Chang 6 reservoir in the Chenghao-Nanliang oilfield, we believe that the divergence of Chenghao-Nanliang oilfield＇s physical properties and petroliferous properties is great, and the heterogeneity is strong. Under- water distributary channel deposit sandstones with good porosity and permeability are developed widely in the Chenghao-Nanliang area, and are the favorable places for oil and gas accumulation.

关 键 词：城壕-南梁地区 长6储层 物性 孔隙类型 非均质性 含油性 

分 类 号：TE321[石油与天然气工程—油气田开发工程]