论文部分内容阅读
在系统收集和整理清泉-柴窑区块三叠系延长组油层资料的基础上,利用大量的分析化验资料,对该延长组储层内岩石学特征、孔喉特征、物性特征、成岩作用及油气富集规律进行了详细的研究。研究表明:清泉-柴窑区块三叠系延长组油层属于低孔、低-特低渗透性储层,岩石以长石砂岩为主,具有高结构成熟度、低成分成熟度的特点,储集空间以残余原生粒间孔为主。油气富集主要受物性、沉积相、构造和生储盖遮挡条件的的控制。
Based on the systematic collection and arrangement of reservoir data of the Triassic Yanchang Formation in the Qingquan-Chaiya block, a large amount of analytical laboratory data are used to analyze the petrology, pore-throat characteristics, physical and chemical properties, diagenesis, Oil and gas enrichment laws were studied in detail. The results show that the Triassic Yanchang Formation reservoirs in Qingquan-Chaiya block belong to low-porosity and low-ultra-low permeability reservoirs. The rocks are dominated by feldspathic sandstones, which have the characteristics of high structural maturity and low component maturity. Set space to residual primary intergranular-based. Oil and gas enrichment is mainly controlled by physical properties, sedimentary facies, tectonics, and occlusion conditions of reservoirs and reservoirs.