鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域

doi:10.7623/syxb201105001

石油学报 ›› 2011, Vol. 32 ›› Issue (5): 733-740.DOI: 10.7623/syxb201105001

• 地质勘探 • 下一篇

鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域

杨华 1,2 付金华 1,2 魏新善 2,3 任军峰 2,3

1中国石油长庆油田公司陕西西安 710018； 2低渗透油气田勘探开发国家工程实验室陕西西安 710018； 3中国石油长庆油田公司勘探开发研究院陕西西安 710018

收稿日期:2011-03-03 修回日期:2011-06-06 出版日期:2011-09-25 发布日期:2011-11-28
通讯作者: 杨华
作者简介:杨华，男，1963年9月生，1984 年毕业于西南石油大学，现为中国石油长庆油田公司教授级高级工程师、常务副总经理，低渗透油气田勘探开发国家工程实验室主任，长期从事鄂尔多斯盆地石油天然气勘探研究和生产工作。
基金资助:
中国石油天然气股份有限公司重大科技专项（2008E-07）“海相碳酸盐岩大油气田勘探开发关键技术”部分成果。

Natural gas exploration domains in Ordovician marine carbonates, Ordos Basin

YANG Hua 1,2 FU Jinhua 1,2 WEI Xinshan 2,3 REN Junfeng 2,3

Received:2011-03-03 Revised:2011-06-06 Online:2011-09-25 Published:2011-11-28

摘要/Abstract

摘要：

通过对鄂尔多斯盆地奥陶系沉积特征、烃源岩条件、储层类型及成藏主控因素的综合分析，认为奥陶系存在盆地中东部风化壳、古隆起周边白云岩体、台缘相带和盆地东部奥陶系盐下四大成藏区带。结合天然气勘探最新进展，优选出奥陶系岩溶风化壳作为勘探的现实目标；同时认为古隆起周边白云岩体、台缘相带及盆地东部奥陶系盐下等三大领域发育多类有效储层及圈闭，成藏潜力巨大，是盆地海相碳酸盐岩天然气勘探的接替领域。

关键词: 鄂尔多斯盆地, 奥陶系, 白云岩, 风化壳, 礁滩, 勘探领域

Abstract:

Based on a study of the Ordovician in the Ordos Basin, such as sedimentary characteristics, conditions of source rocks, types of reservoirs and major controlling factors of hydrocarbon accumulations and traps, we could identify four provinces in Ordovician carbonates, i.e. gas reservoirs in the weathering crust of the middle and eastern basin, dolostones distributed around the Caledonian paleo-uplift, platform margin belts and the pre-salt of the eastern basin. Integrated with new advances in the gas exploration of this basin, gas reservoirs in the weathering crust were selected as preferred targets for the next gas exploration. Meanwhile, various effective reservoirs developed in dolostones circumjacent to the paleo-uplift, platform margin belts and the Ordovician pre-salt in the eastern basin were thought a great potential to serve as successive domains for the future gas exploration. This study is of great importance in guiding gas exploration in Ordovician marine carbonates of the Ordos Basin.

Key words: Ordos Basin, Ordovician, dolostone, weathering crust, reef flat, exploration domain

杨华付金华魏新善任军峰. 鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域[J]. 石油学报, 2011, 32(5): 733-740.

YANG Hua FU Jinhua WEI Xinshan REN Junfeng. Natural gas exploration domains in Ordovician marine carbonates, Ordos Basin[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(5): 733-740.

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鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域

Natural gas exploration domains in Ordovician marine carbonates, Ordos Basin

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