论文部分内容阅读
在塔里木盆地巴楚—麦盖提地区石炭系碎屑岩储集层评价中为了客观地研究储集层质量与油气生成、运移的匹配关系,应用沉积相研究方法,对成岩作用及影响储集层性能的诸因素进行了综合分析,认为压实、胶结作用导致石炭系碎屑岩孔隙减少;溶蚀、交代作用形成次生孔隙,改善了储集物性;中新世前的石炭系东河砂岩,在研究区的东部和西部为良好储集岩,而现今储集层质量较差;卡拉沙依组碎屑岩在早第三纪前为好的储集岩
In the evaluation of the Carboniferous clastic reservoirs in the Bachu-Maigaiti area, Tarim Basin, in order to objectively study the matching relationship between reservoir quality and hydrocarbon generation and migration, the sedimentary facies research method is applied to study the diagenesis and its influence It is concluded that the compaction and cementation lead to the decrease of porosity of Carboniferous clastic rocks, and the formation of secondary pores through dissolution and replacement to improve the reservoir properties. Before the Miocene, the Carboniferous East River Sandstone, which is a good reservoir rock in the eastern and western parts of the study area, is poor in quality today; the clan rocks in the Karashayi Formation were good reservoir rocks before the Early Tertiary