西湖凹陷平湖组岩相类型及沉积相分析

doi:10.3969/j.issn.1673-8926.2017.01.004

岩性油气藏 ›› 2017, Vol. 29 ›› Issue (1): 27–34.doi: 10.3969/j.issn.1673-8926.2017.01.004

西湖凹陷平湖组岩相类型及沉积相分析

吴嘉鹏¹, 万丽芬², 张兰³, 王英民⁴, 赵千慧⁵, 李昆², 王思琦⁶

1. 中国石油长城钻探工程有限公司解释研究中心, 北京 100101;
2. 中国石油化工股份有限公司上海海洋油气分公司, 上海 200120;
3. 中海石油(中国)有限公司上海分公司, 上海 200030;
4. 浙江大学海洋学院, 杭州 310058;
5. 中国石油天然气管道局国际事业部, 河北廊坊 065000;
6. 中国地质大学(北京)能源学院, 北京 100083

收稿日期:2016-07-29 修回日期:2016-12-16 出版日期:2017-01-21 发布日期:2017-01-21
第一作者:吴嘉鹏(1987-),男,博士,工程师,主要从事层序地层、沉积储层及油气勘探等方面的研究工作。地址:(100101)北京市朝阳区安立路101号名人大厦。Email:wjp_better@sina.com。
基金资助:
国家重点基础研究发展计划“南海深水盆地油气资源形成与分布基础性研究”（编号:2009CB219407）资助

Lithofacies types and sedimentary facies of Pinghu Formation in Xihu Depression

WU Jiapeng¹, WAN Lifen², ZHANG Lan³, WANG Yingmin⁴, ZHAO Qianhui⁵, LI Kun², WANG Siqi⁶

1. Geoscience Centre, CNPC Greatwall Drilling Company, Beijing 100101, China;
2. Sinopec Shanghai Offshore Oil & Gas Company, Shanghai 200120, China;
3. Shanghai Branch of CNOOC Ltd., Shanghai 200030, China;
4. Ocean College, Zhejiang University, Hangzhou 310058, China;
5. International Business Department of China Petroleum Pipeline Bureau, Langfang 065000, Hebei, China;
6. School of Energy Resources, China university of Geosciences, Beijing 100083, China

Received:2016-07-29 Revised:2016-12-16 Online:2017-01-21 Published:2017-01-21

摘要/Abstract

摘要： 西湖凹陷平湖组沉积相资料比较单一、研究区域相对局限，对其沉积相类型、展布特征及沉积模式等的认识不清。对西湖凹陷46 口平湖组取心井进行岩心观察，根据粒度和沉积构造等的不同来划分岩相，然后根据岩相的成因类型、组合特征及测井曲线特征等来划分沉积相，将平湖组岩相划分为砾岩相、砂岩相和细粒岩相3 种类型，并认为平湖组主要发育受潮汐作用影响的三角洲相、潮坪相及局限浅海相等沉积相，并细分出三角洲平原、三角洲前缘、前三角洲、潮上带、潮间带、潮下带、陆架砂脊及陆架泥等亚相。综合考虑平湖期不同时期的区域构造运动、古地貌形态及物源供应等影响因素，建立了西湖凹陷平湖期箕状断陷和潮汐作用控制下的物源-沉积模式，为储层研究奠定了基础。

Abstract: The research on sedimentary facies of Pinghu Formation in Xihu Depression is relatively limited,and the types of sedimentary facies,distribution characteristics and sedimentary model are unclear. Based on grain size and sedimentary structures of cores from 46 wells,the lithofacies of Pinghu Formation was identified. Then according to genetic types of lithofacies,lithofacies assemblage characteristics and well logging features,the sedimentary facies of Pinghu Formation was identified. The lithofacies was divided into three types：conglomerate facies,sandstone facies and fine- grained facies. The main sedimentary facies are tidal delta,tidal flat and confined shallow marine,which can be divided into several subfacies including delta plain,delta front, prodelta, supratidal zone,intertidal zone,subtidal zone,and shelf sand ridge etc. Considering the influencing factors such as the regional tectonic movement,palaeogeomorphology,provenance supply at the different Pinghu stage,the provenance-sedimentary model both controlled by half graben and tidal action of Pinghu Formation in Xihu Depression was established,which provides the base for further reservoir research.

中图分类号:

TE122.1

吴嘉鹏, 万丽芬, 张兰, 王英民, 赵千慧, 李昆, 王思琦. 西湖凹陷平湖组岩相类型及沉积相分析[J]. 岩性油气藏, 2017, 29(1): 27–34.

WU Jiapeng, WAN Lifen, ZHANG Lan, WANG Yingmin, ZHAO Qianhui, LI Kun, WANG Siqi. Lithofacies types and sedimentary facies of Pinghu Formation in Xihu Depression[J]. Lithologic Reservoirs, 2017, 29(1): 27–34.

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西湖凹陷平湖组岩相类型及沉积相分析

Lithofacies types and sedimentary facies of Pinghu Formation in Xihu Depression

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