| 羌塘盆地玛曲地区膏岩盖层测井评价 |
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| 引用本文： | 谢小国,陈文彬,曾胜强,罗兵,申华梁.羌塘盆地玛曲地区膏岩盖层测井评价[J].盐湖研究,2018,26(3):14-19, 43. |
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| 作者姓名： | 谢小国 陈文彬 曾胜强 罗兵 申华梁 |
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| 作者单位： | 四川省煤田地质局物探公司;成都理工大学;中国地质调查局成都地质调查中心;国土资源部沉积盆地与油气资源重点实验室 |
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| 基金项目： | 中国地质调查局“羌塘盆地金星湖—隆鄂尼地区油气资源战略调查项目”(DD20160159)资助。 |
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| 摘 要： | 为定量评价羌塘盆地玛曲地区膏岩盖层的封闭质量,基于羌资-16井实际钻遇的一套巨厚膏岩地层,根据膏岩与其它岩石的测井响应特征不同,有效地划分出膏岩地层的深度、厚度。选取厚度、孔隙度、渗透率和排替压力等4种关键参数评价膏岩盖层的封闭质量,并确立各参数的权值和计算方法。结果表明羌资-16井雀莫错组膏岩厚度大,孔隙度、渗透率极低,排替压力高,达到优质盖层标准。利用测井方法评价羌塘盆地玛曲地区膏岩盖层的封隔能力,为该区油气成藏机理研究提供了重要的依据。
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| 关 键 词： | 盖层 膏岩 测井 雀莫错组 羌塘盆地 |
| 收稿时间： | 2017/5/27 0:00:00 |
| 修稿时间： | 2017/6/8 0:00:00 |
Evaluation of Caprock Logging Cream in Maqu Area of Qingtang Basin |
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| XIE Xiao-guo,CHEN Wen-bin,ZENG Sheng-qiang,LUO Bing and SHEN Hua-liang.Evaluation of Caprock Logging Cream in Maqu Area of Qingtang Basin[J].Journal of Salt Lake Research,2018,26(3):14-19, 43. |
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| Authors: | XIE Xiao-guo CHEN Wen-bin ZENG Sheng-qiang LUO Bing and SHEN Hua-liang |
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| Institution: | Geophysical prospecting company, Sichuan coalfield geology bureau, Chengdu,610072,China;Chengdu University of Technology, Chengdu,610059,China,Chengdu Center, China geological survey, Chengdu,610081,China;Key laboratory for sedimentary basin and oil and gas resources, ministry of land and resources, Chengdu,610081,China,Chengdu Center, China geological survey, Chengdu,610081,China;Key laboratory for sedimentary basin and oil and gas resources, ministry of land and resources, Chengdu,610081,China,Geophysical prospecting company, Sichuan coalfield geology bureau, Chengdu,610072,China and Chengdu Center, China geological survey, Chengdu,610081,China;Key laboratory for sedimentary basin and oil and gas resources, ministry of land and resources, Chengdu,610081,China |
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| Abstract: | In order to extract quantitative assessment of Caprock Sealing Quality in Maqu area of Qiangtang basin, based on a huge thick gypsum strata drilled in QZ-16, and the logging response characteristics of the paste rock and other rocks,the depth and thickness of the gypsum formation are effectively divided. Selecting the thickness, porosity, permeability and displacement pressure can evaluate the quality of sealing paste, and establish the weight of each parameter and calculation method. The study results show that the thickness of Qoimaco formation is large, the porosity and permeability are very low, and the displacement pressure is high, to achieve high quality cover standards. It provides an important basis for studying the mechanism of hydrocarbon accumulation by evaluating the sealing ability of gypsum caprock used logging method in Maqu area of Qingtang Basin. |
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| Keywords: | Caprock Gypsum Well logging Qoimaco formation Qiangtang Basin |
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