石油勘探与开发 >

2022 , Vol. 49 >Issue 2: 274 - 284

DOI: https://doi.org/10.11698/PED.2022.02.06

油气勘探

四川盆地德阳—安岳侵蚀裂陷槽分段性演化分析和油气勘探意义

  • 马奎 ,
  • 文龙 ,
  • 张本健 ,
  • 李勇 ,
  • 钟佳倚 ,
  • 王云龙 ,
  • 彭瀚霖 ,
  • 张玺华 ,
  • 严威 ,
  • 丁一 ,
  • 陈骁
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  • 1.中国石油西南油气田公司勘探开发研究院,成都 610041;
    2.成都理工大学,成都 610059
马奎（1988-）,男,湖北黄冈人,博士,中国石油西南油气田公司勘探开发研究院高级工程师,主要从事川中古隆起震旦系—寒武系地质综合研究。地址：四川省成都市武侯区天府大道北段12 号石油科技大厦,西南油气田公司勘探开发研究院,邮编：610041。E-mail:makriped@163.com.cn

收稿日期: 2021-05-20

  网络出版日期: 2022-03-16

基金资助

国家重点研发计划项目（2017YFC0603106）; 中国石油西南油气田公司科技处项目（20200301-01）

收起

Segmented evolution of Deyang-Anyue erosion rift trough in Sichuan Basin and its significance for oil and gas exploration, SW China

  • MA Kui ,
  • WEN Long ,
  • ZHANG Benjian ,
  • LI Yong ,
  • ZHONG Jiayi ,
  • WANG Yunlong ,
  • PENG Hanlin ,
  • ZHANG Xihua ,
  • YAN Wei ,
  • DING Yi ,
  • CHEN Xiao
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  • 1. Research Institute of Petroleum Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, China;
    2. Chengdu University of Techonology, Chengdu 610059, China

Received date: 2021-05-20

  Online published: 2022-03-16

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摘要

基于野外、钻井和地震资料分析,恢复四川盆地德阳—安岳侵蚀裂陷槽形成演化过程,并对勘探领域进行划分和评价。结果表明：①德阳—安岳侵蚀裂陷槽及周缘震旦系灯影组沉积特征具有明显差异。侵蚀裂陷槽北段灯影组发育深水沉积,盆地北部灯影组发育盆地—斜坡—台地边缘—局限台地沉积模式,中—南段灯影组为碳酸盐台地沉积环境。②德阳—安岳侵蚀裂陷槽是伸展裂陷和岩溶侵蚀作用叠加改造而成,侵蚀裂陷槽北段以拉张裂陷作用为主,中段和南段为桐湾多幕次侵蚀作用改造而成。基于侵蚀裂陷槽分段性成因,将其及周缘灯影组划分为盆地北部台缘岩性丘滩体、中部台内岩溶丘滩体和中—南部槽内岩溶残丘3大勘探领域,其中盆地中—南部槽内岩溶残丘是盆地天然气勘探战略突破新领域,北部台缘岩性丘滩体是盆地天然气万亿立方米资源增储新阵地。

关键词： 四川盆地; 震旦系灯影组; 深水沉积; 侵蚀裂陷槽; 分段性成因; 槽内岩溶残丘; 台缘岩性丘滩体

本文引用格式

马奎 , 文龙 , 张本健 , 李勇 , 钟佳倚 , 王云龙 , 彭瀚霖 , 张玺华 , 严威 , 丁一 , 陈骁 . 四川盆地德阳—安岳侵蚀裂陷槽分段性演化分析和油气勘探意义[J]. 石油勘探与开发, 2022 , 49(2) : 274 -284 . DOI: 10.11698/PED.2022.02.06

Abstract

Based on analysis of field survey, drilling and seismic data, the formation and evolution process of Deyang-Anyue erosion rift trough in Sichuan Basin was reconstructed, and exploration areas were divided and evaluated. The results show that: (1) Dengying Formation in and around Deyang-Anyue erosion rift trough varies widely in sedimentary characteristics. The Dengying Formation in the northern part of the erosion rift trough developed deep-water sediments, the Dengying Formation in the northern part of the basin varied gradually from basin to slope, platform margin, and limited platform facies, and the Dengying Formation in the middle and southern parts of the trough developed carbonate platform facies. (2) Deyang-Anyue erosion rift trough is formed by extensional rift and karst erosion jointly, the north section of the erosion rift trough is mainly the product of tensile rift, while the middle and south sections are formed by erosion in multi-episodes of Tongwan period. (3) Based on the segmented origins of the erosion rift trough, Dengying Formation in and around it is divided into three exploration fields: lithologic mound and beach bodies at the northern platform margin of the basin, karst mound and beach bodies in the central platform, and karst residual mounds in the central southern trough of the basin, among them, the karst residual mounds in the central southern trough of the basin are a new frontier for natural gas exploration in the basin, and the lithologic mound and beach bodies at the northern platform margin are a new position for increasing the reserves of trillions of cubic meters of natural gas resources in the basin.

Key words： Sichuan Basin; Sinian Dengying Formation; deep water deposits; erosion rift trough; segmented origin; karst mounds; platform marginal lithologic mounds and shoals

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