Reservoir space types and its genesis in tight calcilutite-rudstone reservoir of the lower part of Member 3 of Shahejie Formation, Shulu sag

doi:10.7623/syxb2015S1004

Acta Petrolei Sinica ›› 2015, Vol. 36 ›› Issue (s1): 31-39.DOI: 10.7623/syxb2015S1004

• Petroleum Exploration • Previous Articles Next Articles

Reservoir space types and its genesis in tight calcilutite-rudstone reservoir of the lower part of Member 3 of Shahejie Formation, Shulu sag

Han Chao¹, Tian Jianzhang², Zhao Rui¹, Luo Dongxiang³, Qu Ying¹, Yu Zhanwen², Xin Weijiang², Wang Sicheng², Liu Yan²

1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
2. PetroChina Huabei Oilfield Company, Hebei Renqiu 062552, China;
3. Research Institute of Oil Recovery Technology, PetroChina Jidong Oilfield Company, Hebei Tangshan 063004, China

Received:2015-03-09 Revised:2015-08-22 Online:2015-11-30 Published:2015-12-09

束鹿凹陷沙河街组三段下亚段泥灰岩-砾岩致密储层储集空间类型及成因

韩超¹, 田建章², 赵蕊¹, 罗冬香³, 曲莹¹, 鱼占文², 辛玮江², 王四成², 刘燕²

1. 中国地质大学能源学院北京 100083;
2. 中国石油华北油田公司河北任丘 062552;
3. 中国石油冀东油田公司采油工艺研究院河北唐山 063004

通讯作者: 韩超,男,1988年9月生,2013年获山东科技大学学士学位,现为中国地质大学能源学院博士研究生,主要从事沉积学及油气储层地质学方面的研究工作。Email:hanchao8809@126.com
作者简介:韩超,男,1988年9月生,2013年获山东科技大学学士学位,现为中国地质大学能源学院博士研究生,主要从事沉积学及油气储层地质学方面的研究工作。Email:hanchao8809@126.com
基金资助:
国家重大科技专项(2011ZX05009)和中国石油天然气股份有限公司重大科技专项(2014E-035)资助。

Abstract

Abstract:

Using polarization microscope, fluorescence microscope, cathodoluminescence microscope, field emission scanning electron microscope and physical property experiments, reservoir space types of calcilutite-rudstone reservoirs in the lower part of Member 3 of Shahejie Formation, Shulu sag, were analyzed systematically, and genesis of reservoir space and its controlling factors were discussed. Five kinds of lithology, i.e., laminated calcilutite, massive calcilutite, grain-supported terrigenous rudstone, matrix-supported terrigenous rudstone and mixed-source rudstone are well developed in this calcilutite-rudstone reservoirs. This kind of reservoir is tight and characterized by extremely poor porosity and permeability, which belongs to low porosity and ultra-low permeability reservoir. Reservoir spaces mainly include secondary pores and fissures, such as dissolution pore, organic-matter pore, intra-gravel pore, intra-particle (crystal)pore, inter-particle (crystal)pore, tectonic fissure, interlayer bedding fissure, gravel-lined fissure, contraction fissure and organic-acid dissolution fissure. Reservoir spaces of calcilutite are dominated by organic-matter fissure, bedding fissure and inter-particle (crystal)pore, while those of rudstone are mainly intra-gravel pore, dissolution pore and tectonic fissure. Development of reservoir spaces are mainly influenced by combined effects of tectonism, sedimentation, provenance and diagenesis.

Key words: Shulu sag, calcilutite-rudstone, reservoir space, organic-matter pores, lower part of Member 3 of Shahejie Formation

摘要：

通过偏光显微镜、荧光显微镜、阴极发光显微镜、场发射电镜和物性实验等手段,系统剖析了束鹿凹陷沙河街组三段下亚段泥灰岩-砾岩储层储集空间类型,探讨了储集空间成因及控制因素。研究区泥灰岩-砾岩主要发育纹层状泥灰岩、块状泥灰岩、颗粒支撑陆源砾岩、杂基支撑陆源砾岩、混源砾岩5种岩性,储层致密,孔渗极差,属特低孔特低渗储层。储集空间主要为次生孔隙和裂缝,发育溶孔、有机质孔、砾内孔、粒(晶)内孔隙、粒(晶)间孔隙等,以及构造缝、层间页理缝、贴砾缝、收缩缝、有机酸溶蚀缝等;其中,泥灰岩储集空间以有机质孔隙、页理缝、粒(晶)间孔隙为主,砾岩储集空间以砾内孔、溶孔、构造缝为主。储集空间的发育主要受构造作用、沉积作用、物源和成岩作用等因素综合影响。

关键词: 束鹿凹陷, 泥灰岩-砾岩, 储集空间, 有机质孔隙, 沙河街组三段下亚段

CLC Number:

TE122.2

Han Chao, Tian Jianzhang, Zhao Rui, Luo Dongxiang, Qu Ying, Yu Zhanwen, Xin Weijiang, Wang Sicheng, Liu Yan. Reservoir space types and its genesis in tight calcilutite-rudstone reservoir of the lower part of Member 3 of Shahejie Formation, Shulu sag[J]. Acta Petrolei Sinica, 2015, 36(s1): 31-39.

韩超, 田建章, 赵蕊, 罗冬香, 曲莹, 鱼占文, 辛玮江, 王四成, 刘燕. 束鹿凹陷沙河街组三段下亚段泥灰岩-砾岩致密储层储集空间类型及成因[J]. 石油学报, 2015, 36(s1): 31-39.

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Reservoir space types and its genesis in tight calcilutite-rudstone reservoir of the lower part of Member 3 of Shahejie Formation, Shulu sag

束鹿凹陷沙河街组三段下亚段泥灰岩-砾岩致密储层储集空间类型及成因

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