| 作 者：杨克绳,党晓春,戴福贵 |
| 单 位：东方地球物理勘探公司研究院地质研究中心 |
| 基金项目： |
| 摘 要： |
| 双洞背斜古油藏、刘其营潜山油气藏、苏桥潜山油气藏均为古生古储或自生自储的油气藏（古油藏）。双洞古油藏位于燕山褶皱带山海关隆起北部,邻近渤海湾盆地,其含油层为中—上元古界铁岭组,而该处根本没有下第三系生油层,说明中—上元古界和古生界是其生烃层。刘其营油气藏位于冀中坳陷,储层为奥陶系,盖层为石炭系—二叠系,其上部新生界主要生油层为沙河街组三段,中间相隔厚度约1000～3000 m的沙河街组四段和孔店组隔层。沙河街组三段所生之油气,无法穿过这一隔层及不整合面向下运移到奥陶系储层中,因此刘其营潜山油气藏也不可能是新生古储的。苏桥油气藏是一复式油气藏,上部石炭系—二叠系气藏与下部奥陶系油藏叠合,根据油、气、水性质的对比也可以排除新生古储的成藏模式。渤海湾盆地古生界和中—上元古界具有生烃能力,其中的临清坳陷具备在深部古老地层寻找-生油气藏的条件。 |
| 关键词：古潜山油气藏；古生古储油气藏；成藏模式；冀中坳陷；渤海湾盆地 |
| Author's Name: Yang Kesheng, Dang Xiaochun, Daifugui |
| Institution: Geophysical & Geological Research Institute BGP, PetroChina Co. |
| Abstract: |
| Shuangdong anticlinal paleo-reservoir in the northern Haiguan Uplift adjacent to the basin, Liuqiying and Suqiao buried hill reservoirs in Jizhong Depression are all the "paleo-source and paleo-reservoir" typed hydrocarbon reservoirs in Bohaiwan Basin region. Shuangdong paleo-reservoir is composed of Meso-proterozoic-Neo-proterozoic Tieling Formation of hydrocarbon-bearing rocks without the common overlying Paleogene source rocks, which indicates that the source rocks are the own Meso-proterozoic and Neo-proterozoic rocks. Liuqiying Ordovician buried hill reservoir is capped by Carboniferous-Permian rock, overlying which it is just the 1000～3000m-thick Cenozoic Shahejie Member-3 and Kongdian Formation. Hydrocarbon is unable to migrate downwards into the Liuqiying Ordovician reservoir through the thick interlay- ers of Shahejie Member -3 and Kongdian Formation although hydrocarbon in Cenozoic rocks mostly derives from the Shahejie Member-3 source rock. Therefore, the hydrocarbon in Liuqiying Paleozoic buried hill reservoir cannot come from the newer Cenozoic rocks. Suqiao reservoir is a multiple one that is superimposed by a Carboniferous gas reservoir in the upper and Ordovician oil reservoir in the lower. The hydrocarbon in Suqiao buried hill reservoir cannot come from the newer rocks too based on the correlation of oil, gas and water property. It is suggested that the Meso-proterozoic and Neoproterozoic rocks are of good hydrocarbon-generating potential and primary hydrocarbon reservoirs are hopeful to be discovered in deep ancient rocks, especially in Linqing Depression. |
| Keywords: Buried hill reservoir; Reservoir type; Model of hydrocarbon accumulation; Jizhong Depression; Bohaiwan Basin |
| 投稿时间： 2006-03-31 |
