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Prospects of petroleum Exploration in Qinghai-Tibet Plateau

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china Oil & Gas 1997年第4期4卷 202-203页

作者： zhao zhengzhang(china national petroleum corporation)li yongtie Guo Zujun ye hefei(Research Institute of petroleum Exploration and Devetopment) china national petroleum corporation Research Institute of petroleum Exploration and Development

There are a lot of Cenozoic sedimentary basins and Mesozoic residual basins in the Plateau, all over 500,000 km2 in area. In these basins Mesozoic-Cenozoic marine or continental strata are widely distributed, especially in the Qiangtang Basin, which is the largest in area and has the most favorable petroleum geological conditions, with the Coquen Basin ranking secondary.

关键词： Prospective evaluation Plateau Basin Petroletun industIy

Conditions of petroleum Geology of the Qiangtang Basin of the Qinghai-Tibet Plateau

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Acta Geologica Sinica(English Edition) 2000年第3期74卷 661-665页

作者： zhao zhengzhang li yongtie china national petroleum corporation(CNPC) LiupukangBeijing 100724 Research Institute of petroleum Exploration and Development CNPCBeijing 100083

The Qinghai-Tibet Plateau located in the Tethyan tectonic domain is the best developed region of Mesozoic and Cenozoic marine sediments in china. The Qiangtang basin is the biggest and relatively stable area of the plateau. Triassic and Jurassic hydrocarbon source rocks are extensively distributed in the basin. There exist good dolomite and organic reef reservoirs and mudstone and evaporite cap rocks, as well as well-developed structural traps in the basin; in addition destroyed petroleum traps have been discovered. Therefore, the conditions of petroleum geology in the Qiangtang basin are excellent

关键词： Qinghai-Tibet Plateau Qiangtang basin conditions of petroleum geology

鄂尔多斯盆地中部地区马家沟组断裂控制天然气运移方向的流体包裹体证据

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地球科学 2021年第10期46卷 3601-3614页

作者：冯艳伟陈勇赵振宇刘听雨雷静钟升王淼李冠华裴仰文中国石油大学地球科学与技术学院山东青岛266580 中国石油集团科学技术研究院有限公司北京100083 中国科学技术大学地球和空间科学学院安徽合肥230026

为研究鄂尔多斯盆地中部地区马家沟组成藏期次和天然气运移方向与断裂活动的相关性,利用流体包裹体岩相学观察、激光拉曼光谱分析、均一温度和冰点温度的测定以及热力学PVT模拟方法对奥陶系马家沟组马五段储层的岩心样品进行了成分、温... 详细信息

为研究鄂尔多斯盆地中部地区马家沟组成藏期次和天然气运移方向与断裂活动的相关性,利用流体包裹体岩相学观察、激光拉曼光谱分析、均一温度和冰点温度的测定以及热力学PVT模拟方法对奥陶系马家沟组马五段储层的岩心样品进行了成分、温度和压力的测定与恢复.结果表明:构造裂缝脉体中充填的矿物为方解石、白云石和菱镁矿;脉体中共有4类流体包裹体,分别为富甲烷气体包裹体、含CO_(2)富甲烷气体包裹体、含甲烷盐水包裹体和盐水包裹体,这4类流体包裹体均存在于方解石脉体中;构造裂缝脉体和溶孔中含甲烷流体包裹体的均一温度在130.1~179.6℃之间,与含甲烷流体包裹体同期的盐水包裹体的均一温度范围为112.3~173.3℃.结合生排烃史和埋藏史,证明早白垩世是马家沟组天然气的主要成藏期.沿断裂分布的各井的捕获压力和压力系数呈现由西南向东北递减的趋势,早白垩世的构造运动在北东向的断层中产生大量构造裂缝,为天然气的运移提供了通道,证明含甲烷的流体沿北东向断裂运移并充注成藏.

关键词：鄂尔多斯盆地流体包裹体断裂活动天然气运移马家沟组天然气