准噶尔盆地东部吉木萨尔凹陷二叠系梧桐沟组储层物性特征及控制因素  

PHYSICAL PROPERTIES AND CONTROL FACTORS OF PERMIAN WUTONGGOU FORMATION IN JIMUSAR SAG,EAST OF JUNGGAR BASIN

作　　者：刘春慧[1] 金振奎[1] 朱桂芳[2] 王庆东[3] 张建良[3] 

机构地区：[1]中国石油大学资源与信息学院,北京102249 [2]新疆油田公司勘探开发研究院,新疆克拉玛依834000 [3]塔里木油田分公司勘探事业部,新疆库尔勒841000

出　　处：《天然气地球科学》2007年第3期375-379,共5页Natural Gas Geoscience

摘　　要：通过大量的分析化验资料,研究了吉木萨尔凹陷二叠系梧桐沟组砂岩储层的物性特征和孔隙结构特征,认为研究区储层属于低孔、中渗、粗喉道储层。根据行业标准划分出三大类六小类储层,有勘探潜力的砂层主要为三Ⅰ和三Ⅱ类储层,储层物性的控制因素主要为压实作用,还有砂岩粒径和溶蚀作用。指出埋深3 000 m为一界限值,其上压实作用弱,储层物性较好。预测从吉7井到吉17井的斜坡带为本区优质储层发育区,勘探潜力极大。By analyzing a great quantity of laboratory data, this paper studies the physical properties and pore structure of the sandstone reservoirs in the Permian Wutonggou formation. The reservoirs are of low porosity, moderate permeability and coarse throat. The reservoirs can be classified into 3 categories and 6 subdivisions according to the industrial standard. The sand beds of potential exploration are Types I and of the 3rd category reservoirs. The control factors of physical property are mechanical compaction, sandstone grain diameter, and denudation. It is pointed out that 3000m of burial depth is a threshold, above which the reservoir physical properties are relatively preferable because of weak compaction. It is predicted that the high quality reservoir is mainly distributed in the slope zone from Ji No. 7 well to Ji No. 17 well.

关 键 词：二叠系梧桐沟组 砂岩储层 物性特征 控制因素 储层预测 

分 类 号：TE122.2[石油与天然气工程—油气勘探]