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世界地质 2023, 42(1) 80-91 DOI: ISSN: 1004-5589 CN: 22-1111/P

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	砂砾岩
	物源体系
	构造背景
	储层特征
	东营凹陷
	沙四上亚段
	本文作者相关文章
	方旭庆
	曲希玉
	刘英男
	苗长盛
	PubMed
	Article by Fang X
	Article by Qu X
	Article by Liu Y
	Article by Miao C

东营北带盐家—永安地区沙四上亚段物源区构造背景及其储层差异性

方旭庆1 ，曲希玉2 ，刘英男2 ，苗长盛3

1. 中国石化胜利油田分公司油气勘探管理中心，山东东营 257017;
2. 中国石油大学 ( 华东) 地球科学与技术学院，山东青岛 266580;
3. 长春工程学院勘查与测绘工程学院，长春 130062

摘要：以东营北带盐家—永安地区沙四上亚段砂砾岩储层为研究对象，应用元素地球化学分析手段，对盐 16 和盐 18 物源体系的源区构造背景和原岩属性进行了判别。通过对比分析两个物源体系控制下的储层特征及质量的差异性得出: ①盐家—永安地区沙四上亚段的物源区存在活动大陆边缘和大陆岛弧的构造背景，盐 18 物源体系以活动大陆边缘为主，盐 16 物源体系以大陆岛弧为主; ②原岩的物质组成主要来自于上地壳且存在混源特征; ③相较于盐 18 物源体系，盐 16 物源体系控制下的储层成分具有 “富长石--贫石英--贫岩屑”的特征，成岩强度具有 “弱压实--强溶蚀--中等胶结”的特征，储层物性具有 “物性好--含油层厚--次生溶孔发育”的特征。

关键词：砂砾岩物源体系构造背景储层特征东营凹陷沙四上亚段

Tectonic settings and reservoir differences in provenance region of Es s 4 of Shahejie Formation in Yanjia--Yong＇an area of Dongying North Belt

FANG Xuqing 1 ，QU Xiyu2 ，LIU Yingnan2 ，MIAO Changsheng 3

1. Management Center for Oil and Gas Exploration，Shengli Oilfield Company of SINOPEC，Dongying 257017，Shandong，China;
2. School of Earth Science and Technology，China University of Petroleum ( East China) ，Qingdao 266580，Shandong，China;
3. School of Exploration and Mapping Engineering，Changchun Institute of Technology，Changchun 130062，China

Abstract: Taking the sandy conglomerate reservoirs in Es s 4 of Shahejie Formation in Yanjia--Yong＇an area of Dongying North Belt as the research object，the provenance tectonic settings and original rock properties of the Yan16 and Yan18 provenance systems were discriminated by means of elemental geochemical analysis． The differences in reservoir characteristics and quality under the control of the two provenance systems were compared and analyzed． The following understandings were obtained: ①The provenance area of Es s 4 in Yanjia--Yong＇an area has the tectonic settings of active continental margins and continental island arcs． The Yan18 provenance system is dominated by active continental margins，while the Yan16 provenance system is dominated by continental island arcs． ②The material composition of the parent rock mainly comes from the upper crust and has the characteristics of mixed origin． ③Compared with the Yan18 provenance system，the reservoir composition controlled by the Yan16 provenance system has the characteristics of“high feldspar-low quartz-low debris”． The diagenetic strength has the characteristics of “weak compaction-strong dissolution-iso-cementation”． The physical properties of the reservoir have the characteristics of “good physical properties-thick oil-bearing layer-development of secondary dissolved pores”．

Keywords: sandy conglomerate provenance system tectonic setting reservoir characteristics Dongying depression Es s 4

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