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石油实验地质  2017, Vol. 39 Issue (6): 770-775    DOI: 10.11781/sysydz201706770
盆地·油藏 本期目录 | 过刊浏览 |
塔里木盆地三顺地区志留系储层孔隙类型与控制因素
张福顺1, 张旺2
1. 中国石化 石油勘探开发研究院, 北京 100083;
2. 中国石油大学 (北京) 油气资源与探测国家重点实验室, 北京 102249
Pore types and controls of Silurian reservoirs in Sanshun area, Tarim Basin
Zhang Fushun1, Zhang Wang2
1. SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;
2. State Key Laboratory of Petroleum Resources and Protecting, China University of Petroleum(Beijing), Beijing 102249, China
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摘要: 塔里木盆地三顺地区志留系柯坪塔格组优质储层是该区油气勘探的关键。综合运用岩心分析、铸体薄片观察、阴极发光、环境扫描电镜及能谱分析、包裹体测温等手段,研究柯坪塔格组储层岩石特征、孔隙成因类型、孔隙演化期次,结合沉积成岩,综合分析了优质储层的控制因素。研究认为,柯下段低能淤泥质滨岸沉积了一套成分和结构成熟度都比较低的岩屑砂岩,在成岩过程中受压实作用影响强烈,孔隙以残余粒间孔为主,储层物性受沉积相和压实成岩作用双重控制;柯上段砂质滨岸砂体纵横向连通性好,溶蚀作用很好地改善了储层物性,最后一期次生溶蚀孔隙对储层物性贡献大。
关键词 孔隙成岩作用柯坪塔格组三顺地区塔里木盆地    
Abstract:High-quality reservoirs in the Silurian Kepingtage Formation play an important role in oil and gas exploration in the Sanshun area of Tarim Basin. The reservoir rock characteristics, pore type and pore evolution stage of the Kepingtage Formation were studied in detail using core analysis, thin section observation, cathode luminescence, ESEM, EDS, and inclusion temperature. The controls of high quality reservoirs were identified and combined with sedimentary and diagenetic analyses. The research suggested that lithic sandstones with low compositional and textural maturities were deposited in the low-energy muddy nearshore of the lower Kepingtage Formation, and then strongly impacted by compaction. Hence they were dominated by residual intergranular pores. Reservoir properties were controlled by sedimentary facies and compaction. Porosity in the sandy shore sand in the upper Kepingtage Formation was well connected laterally and longitudinally. Dissolution improved reservoir properties, and the last phase of secondary dissolution contributed greatly to reservoir quality.
Key wordspore    diagenesis    Kepingtage Formation    Sanshun area    Tarim Basin
收稿日期: 2017-05-22      出版日期: 2017-11-28
ZTFLH:  TE122.2  
基金资助:中国石化科技部项目"塔里木志留系油气富集主控因素及勘探方向"(P12003)资助。
作者简介: 张福顺(1968-),男,高级工程师,从事沉积储层研究。E-mail:zhangfs.syky@sinopec.com。
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张福顺, 张旺 .塔里木盆地三顺地区志留系储层孔隙类型与控制因素[J]. 石油实验地质, 2017, 39(6): 770-775.
Zhang Fushun, Zhang Wang .Pore types and controls of Silurian reservoirs in Sanshun area, Tarim Basin. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(6): 770-775.

链接本文:

http://www.sysydz.net/CN/10.11781/sysydz201706770      或      http://www.sysydz.net/CN/Y2017/V39/I6/770

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