FROM PETROLEUM DISCOVERY IN ORDOS BASIN (Ⅱ):FROM BASIN STYLES TO THE PROSPECTS OF PETROLEUM EXPLORATION IN ORDOS BASIN
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摘要:
鄂尔多斯(陕甘宁)盆地是中国近代找油最早的地区之一。因长期不认识前陆盆地结构特点, 加之主要勘探目标层三叠系延长组超低孔渗, 因而油气勘探工作长期处于"孔孔见油, 孔孔不流"的苦恼中。近二十年来, 伴随着压裂技术及三角洲认识的开辟, 前陆找油气相继在中国西部几个大盆地中都取得了进展。不过中国对前陆盆地的研究尚处于中早期阶段, 应从前陆共性进一步加强研究, 中国西部前陆油气勘探进一步繁荣是理所当然的趋势。
Abstract:Ordos Basin is one of the earliest areas to find petroleum in China.For a long time, few of petroleum has been discovered in the basin because of both its structural characteristics and ultra low porosity and permeability in Triassic Yanchang Formation.As a result, the explorationists were lost in a dilemma with "oil shows in every hole, but no oil flow in all holes".In recent 20 years, along with the concept of oil exploration in foreland basins, remarkable breakthrough has been made in the several basins in western China.The study for foreland basins in western China is still at an early stage.We should further researched on the generalities of foreland basins in the future.
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Key words:
- basin style /
- Triassic Yanchang Formation /
- oil and gas exploration /
- Ordos Basin
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