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| 鄂尔多斯盆地志丹探区延长组储层特征研究及评价 | |
| 引用本文： | 陈永胜,赵虹,郑小杰,燕洲泉,贾玉琴,龙利平.鄂尔多斯盆地志丹探区延长组储层特征研究及评价[J].西北地质,2009,42(2):83-88. |
| 作者姓名： | 陈永胜 赵虹 郑小杰 燕洲泉 贾玉琴 龙利平 |
| 作者单位： | 1. 吉林大学,地球科学学院,吉林,长春,130061;长安大学,地球科学与资源学院,陕西,西安,710054 2. 长安大学,地球科学与资源学院,陕西,西安,710054 3. 川庆钻探公司长庆录井公司,陕西,西安,720021 |
| 基金项目： | 中国地质调查局研究项目 |
| 摘 要： | 在大量岩心铸体薄片及物性等资料统计分析的基础上．对志丹探区延长组储层的沉积学、岩石学、物性等特征及孔隙类型和孔隙结构等进行了深入研究，并对储层进行了分类评价。研究结果表明，研究区延长组储集层具有成分成熟度低、结构成熟度高的特点；孔隙类型主要为粒间孔、溶蚀孔等类型，属于中孔、低渗型和中低孔、特低渗型储层。综合多参数评价，研究区延长组中长2和长6油层组分别发育Ⅱ类和Ⅲ类储层．个别地区发育I类和Ⅳ类储层。 |
| 关 键 词： | 储层 物性 评价 延长组 志丹探区 鄂尔多斯盆地 |
Reservoirs Characteristics and Evaluation of Yanchang Formation in Zhidan Area, Ordos Basin |
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| CHEN Yong-sheng,ZHAO Hong,ZHENG Xiao-jie,YAN Zhou-quan,JIA Yu-qin,LONG Li-ping.Reservoirs Characteristics and Evaluation of Yanchang Formation in Zhidan Area, Ordos Basin[J].Northwestern Geology,2009,42(2):83-88. | |
| Authors: | CHEN Yong-sheng ZHAO Hong ZHENG Xiao-jie YAN Zhou-quan JIA Yu-qin LONG Li-ping |
| Institution: | CHEN Yong-sheng, ZHAO Hong, ZHENG Xiao-jie, YAN Zhou-quan, JIA Yu-qin, LONG Li-ping(1. College of Earth Science, dilin University, Changchun Jilin 130061, China; 2. School of Earth Sciences and Resources Management, Chang＇an University, Xi＇an, Shaanxi 710054, China ; 3. Changqing Logging Company of Chuanqing Drilling Co. Ltd , Xi＇an, Shaanxi 720021, China) |
| Abstract: | In this paper, we analyze the data of drilling cores and cast thin sections, study the petrologic characteristics, characteristics of pore and permeability, and the porosity types, and discuss the effect of such factors on oil-bearing layers of Chang-2, Chang-3, Chang-4＋5, and Chang-6 in ZHidan area. The result indicates that the Yanchang reservoir is characterized by low mineral maturity and high structure maturity, of which Chang-2, Chang-3, and Chang-4＋5 are better than Chang-6 in mineral maturity. The physical property shows that Chang-2 is characterized by middle-sized pores and low permeability while Chang-3, Chang-4＋ 5, and Chang-6 are very low in permeability. Reservoirs are divided into four types by several parameters, withChang-2 oil-bearing layer containing reservoir typeⅡand Chang-6 oil-bearing layers mostly containing reservoir type- Ⅲ. |
| Keywords: | reservoirs physical property evaluation Yanchang Formation Zhidan Ordos Basin |
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