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| 铜川地区油页岩地层电性断面特征及勘查 | |
| 引用本文： | 王凯,张旭,唐圣松,姜亭. 铜川地区油页岩地层电性断面特征及勘查[J]. 西南石油大学学报(自然科学版), 2014, 36(3): 59. DOI: 10.11885/j.issn.1674-5086.2012.10.11.04 |
| 作者姓名： | 王凯 张旭 唐圣松 姜亭 |
| 作者单位： | 西安地质矿产研究所，陕西西安710054 |
| 基金项目： | 中国地质调查局项目“鄂尔多斯盆地南部铜川—延安地区三叠系油页岩资源调查评价”(1212011120963) |
| 摘 要： | 为了研究电阻率测深方法在油页岩地区的适用性及分辨率，在鄂尔多斯盆地南缘铜川地区开展了电阻率测深 工作。结合钻孔录井和见矿情况，分析了油页岩地段两种勘查方法获得的电阻率断面特征，在电性断面上圈定了油页 岩层的特定部位。油页岩层厚度相对埋深而言属薄层、高阻目标体，其厚度与埋深纵向比小，在获得的电阻率测深断 面上，高阻电性的油页岩层在电阻率测深断面上分辨率不清晰，其层位与电阻率等值线梯度变化带对应较好，从而间 接指示了油页岩层位置。同时，通过岩性与测井参数综合分析，认为测深断面上这种电阻率值随深度的渐变特征，从 电性角度描述了油页岩层由浅湖沉积环境到半深湖环境的变迁过程，提出电阻率测深方法可以达到勘查油页岩层之 目的。 |
| 关 键 词： | 电阻率测深 电阻率梯度带 油页岩 浅湖相沉积 鄂尔多斯盆地 |
Resistivity Section Characteristics and Exploration of the OilShale Layer in Tongchuan Area |
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| Wang Kai,Zhang Xu,Tang Shengsong,Jiang Ting. Resistivity Section Characteristics and Exploration of the OilShale Layer in Tongchuan Area[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 2014, 36(3): 59. DOI: 10.11885/j.issn.1674-5086.2012.10.11.04 | |
| Authors: | Wang Kai Zhang Xu Tang Shengsong Jiang Ting |
| Affiliation: | Xi′ an Institute of Geology and Mineral Resources，Xi′ an，Shaanxi 710054，China |
| Abstract: | Abstract：In order to study the suitability and resolution of resistivity sounding method in oil shale region，we carried out the resistivity sounding in Tongchuan Area，the south of Ordos Basin. Combined with drilling mud logging and discovery ore situation，analysis of the oil shale section resistivity features by two methods is made，and the specific areas of oil shale layer in the electrical section are selected. Oil shale layer thickness is thin and high resistance layer in target body，compared to bury depth. In the obtained electrical section，the resolution of high resistance electrical oil shale layer is not very clear，but resistivity isoline change of gradient zone corresponds well to oil shale layer position，indicating the oil shale layer position indirectly. And through the comprehensive analysis of lithology and logging parameters，we think the gradient changes of resistivity values with depth changes resistivity value with depth describes from electrical aspect the evolution of oil shale layer from shallow lake sedimentary environment to half deep lacustrine environment. Therefore we conclude that resistivity sounding method can achieve the purpose of the exploration of oil shale layer. |
| Keywords: | Key words：resistivity sounding method gradient zone of resistivity isoline change oil shale shallow lake sedimentary Ordos Basin |
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