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| 页岩气资源量计算:以鄂尔多斯盆地中生界三叠系延长组长7为例 | |
| 引用本文： | 王凤琴,王香增,张丽霞,刘洪军,雷宇.页岩气资源量计算:以鄂尔多斯盆地中生界三叠系延长组长7为例[J].地学前缘,2013,20(3). |
| 作者姓名： | 王凤琴 王香增 张丽霞 刘洪军 雷宇 |
| 作者单位： | 1. 西安石油大学非常规天然气资源研究中心,陕西西安,710065 2. 陕西延长石油集团研究院,陕西西安,710075 3. 广西壮族自治区地质矿产勘查开发局第7地质队,广西柳州,545100 |
| 摘 要： | 鄂尔多斯盆地三叠系延长组长7暗色泥页岩是重要的烃源岩。最近的勘探表明,长7具有良好的页岩气开发前景。重点利用鄂尔多斯盆地279口测井资料、18口取心井的347块岩样实验室多种分析测试资料,开展了鄂尔多斯盆地中生界延长组长7页岩气的岩性、岩相、孔隙类型、有机碳含量、热演化程度、含气性、气体储存方式及其在测井曲线的反响研究;在页岩气形成条件的研究基础上,建立了岩性、含气性、有机质含量与自然伽马、声波时差、电阻率之间的关系,有效地识别含气泥页岩;选择容积法对延长组页岩气资源量进行计算,为未来页岩气的勘探和开发奠定基础。 |
| 关 键 词： | 页岩气资源 非常规油气 鄂尔多斯盆地 延长组 |
The shale gas resources estimation: An example from Mesozoic Triassic Yanchang Formation Member Chang 7, Ordos Basin |
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| Abstract: | The Mesozoic Triassic Yanchang Formation Chang 7 shale in Ordos Basin is an important hydrocarbon source rock and recently has developed into a very active point in shale gas exploration.The goal of the study is to estimate the shale gas resources.On the basis of 279 wells logging data,geological and geochemical database consisting of 347 core samples from 18 core wells of this area,we conducted an overall analysis of lithology,petrofacies,porosity,total organic carbon(TOC) content,thermal maturity and gas content for the Chang 7 gas shale and studied the response of logging curves to the patterns of gas reservoir.On the basis of the study of the forming conditions of the gas shale the present paper builds up the quantitative relationship between TOC and logging data,including acoustic time logging,natural gamma ray logging and resistivity logging.We use volumetric method to estimate the shale gas resources.The results will lay a foundation for the exploration and exploitation of shale gas in the future. |
| Keywords: | shale gas resources unconventional oil and gas Ordos Basin Yanchang Formation |
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