川东忠县—鱼池地区二叠系—三叠系海槽相、台缘相的发现及勘探意义

doi:10.7623/syxb201712002

石油学报 ›› 2017, Vol. 38 ›› Issue (12): 1343-1355.DOI: 10.7623/syxb201712002

川东忠县—鱼池地区二叠系—三叠系海槽相、台缘相的发现及勘探意义

蒋裕强^1,2, 谷一凡^1,2, 刘菲³, 刘冬玺³, 陈卫东³, 廖义沙³, 张文济³, 蒋婵⁴

1. 西南石油大学地球科学与技术学院四川成都 610500;
2. 四川省天然气地质重点实验室四川成都 610500;
3. 中国石油西南油气田公司重庆气矿重庆 400021;
4. 中国石油西南油气田公司勘探事业部四川成都 610041

收稿日期:2017-04-01 修回日期:2017-08-28 出版日期:2017-12-25 发布日期:2018-01-05
通讯作者: 蒋裕强,男,1963年12月生,1985年获西南石油学院学士学位,1993年获西南石油学院硕士学位,现为西南石油大学地球科学与技术学院教授,主要从事非常规油气地质及复杂碳酸盐岩储层地质研究工作。Email:xnsyjyq3055@126.com
作者简介:蒋裕强,男,1963年12月生,1985年获西南石油学院学士学位,1993年获西南石油学院硕士学位,现为西南石油大学地球科学与技术学院教授,主要从事非常规油气地质及复杂碳酸盐岩储层地质研究工作。Email:xnsyjyq3055@126.com
基金资助:
国家自然科学基金项目（No.41272135）资助。

Discovery and exploration significance of Permian-Triassic trough and platform margin facies in Zhongxian-Yuchi area, eastern Sichuan Basin

Jiang Yuqiang^1,2, Gu Yifan^1,2, Liu Fei³, Liu Dongxi³, Chen Weidong³, Liao Yisha³, Zhang Wenji³, Jiang Chan⁴

1. School of Geoscience and Technology, Southwest Petroleum University, Sichuan Chengdu 610500, China;
2. Key Laboratory of Natural Gas Geology of Sichuan Province, Sichuan Chengdu 610500, China;
3. Chongqing Gas Field, PetroChina Southwest Oil and Gas Field Company, Chongqing 400021, China;
4. Exploration Division, PetroChina Southwest Oil and Gas Field Company, Sichuan Chengdu 610041, China

Received:2017-04-01 Revised:2017-08-28 Online:2017-12-25 Published:2018-01-05

摘要/Abstract

摘要：

川东—鄂西地区晚二叠世—早三叠世发育开江—梁平海槽与城口—鄂西海槽，明确环海槽分布的台地边缘及沉积相带展布对指导二叠系—三叠系礁滩气藏的勘探开发具有重要现实意义。基于川东忠县—鱼池地区窑厂、千野草场、楠木桠和三墱坡剖面长兴组—飞仙关组的现场实测和系统取样分析，结合钻井资料和建南地区前期研究成果，认为大池干—石宝寨—高峰场区块为开阔台地相沉积，而开江—梁平海槽主体未向该区延伸；忠县—鱼池地区发育海槽相深水沉积，开江—梁平海槽与建南地区浅水陆棚直接相连，向东直接连通城口—鄂西海槽主体，其两侧发育台地边缘相礁滩沉积。通过确定台地边缘平面展布规律，进一步扩展了研究区内台地边缘分布范围，为川东地区二叠系—三叠系礁滩气藏的勘探开发揭示了全新的领域。

关键词: 沉积相, 川东&mdash, 鄂西地区, 礁滩, 二叠系&mdash, 三叠系, 海槽, 台地边缘

Abstract:

The Kaijiang-Liangping trough and the Chengkou-western Hubei trough were developed in the Late Permian-Early Triassic eastern Sichuan Basin-western Hubei area. To determine the distribution of platform margin and sedimentary facies surrounding the trough has an important realistic significance for guiding the exploration and development in Permian-Triassic reef and shoal gas reservoirs. Based on the field measurement and systematic sampling analysis of Changxing-Feixianguan Formation on Yaochang, Qianyecaochang, Nanmuya and Sandengpo outcrops in Zhongxian-Yuchi area, eastern Sichuan Basin, in combination with the well drilling data and early research achievement of Jiannan area, Dachigan-Shibaozhai-Gaofengchang block is considered as the opening platform facies sediment, while the main body of Kaijiang-Liangping trough has not extended to this area. The trough facies deep-water sediment is developed in Zhongxian-Yuchi area, and the Kaijiang-Liangping trough is directly connected with the shallow shelf in Jiannan area, directly contacting the main body of Chengkou-western Hubei trough eastwards with platform edge facies reef and shoal sediment on both sides. Through determining the plane distribution rule of platform margin, the platform margin distribution range in the study area has been further extended, which reveals a brand new field for the exploration and development in the Permian-Triassic reef and shoal gas reservoirs of eastern Sichuan Basin.

Key words: sedimentary facies, eastern Sichuan Basin-western Hubei area, reef and shoal, Permian-Triassic, trough, platform margin

中图分类号:

TE122.2

蒋裕强, 谷一凡, 刘菲, 刘冬玺, 陈卫东, 廖义沙, 张文济, 蒋婵. 川东忠县—鱼池地区二叠系—三叠系海槽相、台缘相的发现及勘探意义[J]. 石油学报, 2017, 38(12): 1343-1355.

Jiang Yuqiang, Gu Yifan, Liu Fei, Liu Dongxi, Chen Weidong, Liao Yisha, Zhang Wenji, Jiang Chan. Discovery and exploration significance of Permian-Triassic trough and platform margin facies in Zhongxian-Yuchi area, eastern Sichuan Basin[J]. Acta Petrolei Sinica, 2017, 38(12): 1343-1355.

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川东忠县—鱼池地区二叠系—三叠系海槽相、台缘相的发现及勘探意义

Discovery and exploration significance of Permian-Triassic trough and platform margin facies in Zhongxian-Yuchi area, eastern Sichuan Basin

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