| 塔里木盆地巴麦地区泥盆系储层非均质性及其主控因素 |
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| 引用本文： | 孙守亮,苏飞,郭巍,李永飞.塔里木盆地巴麦地区泥盆系储层非均质性及其主控因素[J].地质与资源,2014,23(5):470-475. |
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| 作者姓名： | 孙守亮 苏飞 郭巍 李永飞 |
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| 作者单位： | 1. 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110034;2. 吉林大学 地球科学学院, 吉林 长春 130026 |
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| 基金项目： | 中石化西北分公司项目(编号SCK-JL，中国地质调查局项目 |
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| 摘 要： | 塔里木盆地的巴楚-麦盖提地区是已知的油气富聚区,先后在多口钻井的泥盆系储层中见油气显示.但由于有利储层的形成条件及分布规律不清,阻碍了该区进一步的勘探开发工作.通过对区内8口井的钻井岩心、岩石薄片及铸体薄片观察,结合压汞分析及物性测试等资料,研究了该区泥盆系储层的孔隙特征及非均质性.结果表明:储层砂体孔隙类型以溶蚀粒间孔为主,其次为原生粒间孔;孔隙总体上表现为中小孔微细喉,分选差的结构特点.另外,砂岩密度及渗透率变异系数等定量参数表明研究区泥盆系储层层间及层内均具有强非均质性.其非均质程度主要受控于砂体成因类型、成岩作用,早期油气的充注仅对部分区域的物性具有间接的控制作用.
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| 关 键 词： | 控制因素 非均质性 泥盆系储层 塔里木盆地 新疆 |
| 收稿时间： | 2013-02-26 |
HETEROGENEITY OF DEVONIAN RESERVOIR AND ITS MAJOR CONTROLLING FACTORS IN BACHU-MAIGAITI AREA,TARIM BASIN |
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| SUN Shou-liang,SU Fei,GUO Wei,LI Yong-fei.HETEROGENEITY OF DEVONIAN RESERVOIR AND ITS MAJOR CONTROLLING FACTORS IN BACHU-MAIGAITI AREA,TARIM BASIN[J].Geology and Resources,2014,23(5):470-475. |
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| Authors: | SUN Shou-liang SU Fei GUO Wei LI Yong-fei |
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| Institution: | 1. Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110034, China;2. College of Earth Sciences, Jilin University, Changchun 130026, China |
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| Abstract: | Bachu-Maigaiti area in Tarim Basin is well known for accumulation of oil and gas, where oil and gas have been found in many wells in the Devonian reservoir. However, the uncertainty of forming conditions of favorable reservoir and distribution regularity hinders further exploration and development in the area. With observation of drilling cores, rock slices and casting thin sections of eight wells, combining with intrusive mercury analysis and porosity and permeability test, the authors study pore characteristics and non-homogeneity of the Devonian reservoir in the area. The results show that the main sand pore type is intergranular dissolution pore, followed by primary intergranular pore, with structural characteristics of fine pore, fine throat and poor sorting. In addition, quantitative parameters such as sandstone density and permeability variation coefficient show a strong heterogeneity between and within the layers of the Devonian reservoir in the study area. The degrees of heterogeneity are mainly controlled by genetic types of sandbody and diagenesis. The early oil and gas filling has only an indirect controlling effect on part of the area. |
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| Keywords: | controlling factor heterogeneity Devonian reservoir Tarim Basin Xinjiang |
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