摘要
通过对辽河盆地西部凹陷深层石油地质特征的综合研究，搞清了本区深层构造及演化特征，揭示了深层沉积特征、砂体展布规律以及深层成藏的主控因素，分析了深层储集性能及孔隙演化规律。本区深层５０００ｍ以上烃源岩处于成熟阶段，生排烃时窗长，油源充足；深层储层以沙二段扇三角洲前缘砂体及沙三段湖底扇辫扶沟道和扇中前缘砂体储集性能最好，结合先进的储层预测技术发现和落实了清２０南等一系列构造及岩性圈闭，指出了下步勘探方向，为深层勘探的突破奠定了基础。
On the basis of integrated geological studies on deep reservoirs in the west sag of Liaohe Basin, this paper presents substructures and their evolution, the depositional feature,sandbody spatial distribution of deep reservoir beds,the deep reservoir characteristics as well as the dominant factors of deep reservoir. A conclusion from the studies is that the favorable source rocks buriedat 5000 m or more are in their mature phase and have longer oil generation--expelling window,indicating that the petrophysicalproperties of Sha l-2 numbers fan-delta frontal sandbody and Sha3 braided channel sandbody of sublacustrine fan are the bestreservoir in the deep area. Especially a series of structural and lithologic traps are found by using various reservoir predictingmethods,a number of favorable areas are pointed out.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1999年第6期9-15,共7页
Acta Petrolei Sinica
