
第37卷第5期 2016年10月
文章编号:1001-3873(2016)05-0615-05
新疆石油地质
XINJIANG PETROLEUM GEOLOGY DOI:10.7657/XJPG20160522
Vol.37,No.5 Oct.2016
阿姆河右岸区块卡洛夫一牛津阶礁滩型储集层特征
聂明龙12赵星林".程木伟”陈骁师”
(1.辽宁工程技术大学矿业技术学院,辽宁萌芦岛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)
摘要:礁滩体是阿姆河右岸区块中一上保罗统卡洛夫一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、典型钻井的岩石幕片鉴定和储集层物性测试,结合古地航和地层对比,探讨了阿姆河右岸区块卡洛夫一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一牛津阶发育台缘礁滩体和缓坡殖滩体2种类型的礁滩体。礁准体发育受古地貌控制,沉积环境是殖准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类礁谁型储集层差异的原因,台缘礁滩体原生骨架孔、粒间孔发育,造确生物、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。关键调:阿姆河盆地;阿姆河右岸区块;卡洛夫阶;牛津阶;缓拔礁滩;台缘礁滩;碳酿盐岩储集层
中图分类号:TE112.23
文献标识码:A
Characteristics of Reef-Flat Reservoirs of Callovian-Oxfordian Stage in Right Bank Area.
Amu-DaryaBasin
NIEMinglong',ZHAO Xinglin',CHENGMuwei',CHEN Xiaoshuai'
(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 100083,China)
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-Oxford ian 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 dfferences 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 prety good and the high positions of the paleogeomorphology are the favorable zones for reef-flat reservoir development.
Keywords: Amu-Darya basin; Amu-Darya right bank;Callovian; Oxfordian; gentle-slope reef-flat; plat-margin reef-flat; carbonate reservoir
礁滩型储集层是碳酸盐岩油气勘探的重要对象之一,易形成储量丰富的油气藏。根据对全球226个大中型碳酸盐岩油气藏的统计,礁滩型储集层油气藏占43.4%"-2。已在礁滩型储集层中发现了许多大型油气藏,如美国二叠盆地和密执安盆地、西加拿大盆地、中亚滨里海盆地等生物礁滩型油气藏-。在塔里木盆地奥陶系,四川盆地寒武系、二叠系、三叠系和鄂尔多斯盆地奥陶系也先后发现了生物礁滩型油气藏。前人对生物礁的形成环境、礁滩型储集层的成因等进行了大量研究后指出-",生物礁滩的发育受古
收稿日期:2015-10-23
修订日期:2016-07-07
地貌、海水能量等环境因素控制,礁滩体沉积后还受成岩作用及构造作用等诸多因素的影响。
阿姆河盆地是中亚地区最重要的含油气盆地"-13 在阿姆河右岸地区有中国石油对外合作的重要区块。该区中一上侏罗统卡洛夫一牛津阶碳酸盐岩是主要的勘探目的层叫,优质储集层主要发育在礁滩体中15-2。与中国中一晚成岩阶段的古生界礁滩型储集层不同,阿姆河右岸区块侏罗系礁滩型储集层主要形成于中成岩阶段。本文通过区域内典型钻井的岩心和测井、地震等资料,研究了阿姆河右岸区块礁滩体
基金项目:国家科技重大专项(2011ZX-05059);国家青年基金(41402101.51304112);辽宁省大学生创新创业计划项目(201610147038) 作者简介:聂明龙(1976-),男,黑龙江双城人,讲师,博士后,油气地质,(Tel)0429-5310568(E-mail)nieminglongsohu.com
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