›› 2016, Vol. 37 ›› Issue (5): 1-1.doi: 10.7657/XJPG20160522

• 论文 •    

阿姆河右岸区块卡洛夫—牛津阶礁滩型储集层特征

聂明龙1,2,赵星林1,程木伟3,陈骁帅1   

  1. (1.辽宁工程技术大学 矿业技术学院,辽宁 葫芦岛 125105;2.中国地质大学 能源学院,北京 10083;3.中国石油 勘探开发研究院 亚太所,北京 100083)
  • 出版日期:2019-01-01 发布日期:1905-07-16

Characteristics of Reef-Flat Reservoirs of Callovian-Oxfordian Stage in Right Bank Area, Amu-Darya Basin

NIE Minglong1,2, ZHAO Xinglin1, CHENG Muwei3, CHEN Xiaoshuai1   

  1. (1.School of Mining Technology, Liaoning University of Technology and Engineering, Huludao, Liaoning 125105, China;2.School of Energy Resources, China University of Geosciences, Beijing 100083, China;3.Asia-Pacific Institute, Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083China)
  • Online:2019-01-01 Published:1905-07-16

摘要: 礁滩体是阿姆河右岸区块中—上侏罗统卡洛夫—牛津阶碳酸盐岩储集层的主要类型,通过对阿姆河右岸区块地震相分析、典型钻井的岩石薄片鉴定和储集层物性测试,结合古地貌和地层对比,探讨了阿姆河右岸区块卡洛夫—牛津阶碳酸盐岩礁滩体类型,分析了礁滩型储集层成因。阿姆河右岸区块卡洛夫—牛津阶发育台缘礁滩体和缓坡礁滩体2种类型的礁滩体。礁滩体发育受古地貌控制,沉积环境是礁滩型储集层发育的主控因素,生物组分选择性溶蚀作用是形成2类礁滩型储集层差异的原因,台缘礁滩体原生骨架孔、粒间孔发育,造礁生物、生物碎屑等易溶蚀组分含量高,易于成岩流体渗入而形成溶蚀孔隙,储集层物性好,古地貌高部位是礁滩型储集层有利发育区。

Abstract: Reef-flat body is the dominant reservoir type in the Middle-Upper Jurassic Callovian-Oxfordian carbonate rocks in Amu-Darya basin. Based on seismic facies analysis, rock thin section identification and reservoir physical property test in Amu-Darya right bank, and combined with paleogeomorphology and stratigraphic correlation, the article demonstrates the types of reef-flat bodies in Callovian-Oxfordian carbonate rocks in Amu-Darya basin, and analyzes the genesis of the reef-flat reservoirs. 2 types of reef-flat bodies such as platform-margin reef-flat body and gentle-slope reef-flat body are found in Callovian-Oxfordian strata in Amu-Darya basin. The development of the reef-flat bodies is controlled by paleogeomorphology and sedimentary environment is the main controlling factor of the development of the reef-flat reservoirs. Selective dissolution of biological components is the reason causing the differences of the 2 types of reef-flat reservoirs. All the characteristics of developed primary framework pores and intergranular pores in the platform-margin reef-flat body, high cotent of the easily dissolved components of reef-building organism and bioclastics, and easy to form diagenetic fluid infiltration and disolved pores indicate that the physical properties of the reservoirs are pretty good and the high positions of the paleogeomorphology are the favorable zones for reef-flat reservoir development

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