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塔里木与四川盆地上震旦统白云岩储层沉积-成岩特征对比

TANG Pan CHEN Daizhao LI Shuangjian ZHOU Yuanquan YANG Bo WANG Yuanzheng DING Yi JIANG Huachuan

成都理工大学学报（自然科学版）2025，Vol.52Issue(4)：722-738,17.
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成都理工大学学报（自然科学版）2025，Vol.52Issue(4)：722-738,17.DOI:10.12474/cdlgzrkx.2024040202

塔里木与四川盆地上震旦统白云岩储层沉积-成岩特征对比

Insights from a comparison of diagenetic sedimentary characteristics of Upper Sinian dolomite reservoirs between the Tarim and Sichuan Basins

TANG Pan 1CHEN Daizhao 2LI Shuangjian 3ZHOU Yuanquan 4YANG Bo 2WANG Yuanzheng 5DING Yi 6JIANG Huachuan6

作者信息

  • 1. College of Resources and Environment,Yangtze University,Wuhan 430100,China||Key Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China
  • 2. Key Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China||University of Chinese Academy of Sciences,Beijing 100049,China
  • 3. Petroleum Exploration and Production Research Institute,SINOPEC,Beijing 100083,China
  • 4. Research Institution of Petroleum Exploration and Development,Petro China,Beijing 100083,China
  • 5. Wuxi Research Institute of Petroleum Geology,SINOPEC,Wuxi 214126,China
  • 6. Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China
  • 折叠

摘要

Abstract

Sinian dolomites are important exploration horizons in the deep to ultra-deep carbonates in China.Tarim Basin and Sichuan Basin have relatively similar sedimentary filling sequences and petroleum geological conditions.Thus,it is of great significance to carry out a comparative study of the dolomite reservoirs of the Upper Sinian in these two basins to deepen our understanding of the genesis of large-scale reservoirs.Taking diagenetic sedimentary characteristics as the main focus,combined with reservoir characteristics,the development conditions of the Upper Sinian Qigebrak Formation in Tarim Basin and the Upper Sinian Dengying Formation in Sichuan Basin are comprehensively analyzed.The results show that the tectonic-sedimentary paleogeographic framework of Tarim Basin during the Sinian period was significantly different from that of Sichuan Basin,where paleogeographic fluctuations were greater during the Dengying period,which was more conducive to the formation of initial pores.In addition,the Qigebrak and Denying Formations have relatively similar diagenetic evolution histories,where in both,early seawater dolomitization made a positive contribution to the formation of reservoirs.However,multiple stages of early supergene dissolution and hydrocarbon charging events occurred in the Dengying Formation,which were conducive to the formation and preservation of pores.Future exploration of the Qigebrak Formation should focus on the area where a karstified zone in the uppermost Sinian has developed,which is associated with microbial buildup.This study provides guidance for oil and gas exploration of Sinian dolomites in China.

关键词

塔里木盆地/四川盆地/上震旦统/白云岩储层/跨流域对比

Key words

Tarim Basin/Sichuan Basin/Upper Sinian/dolomite reservoirs/inter-basin comparison

分类

天文与地球科学

引用本文复制引用

TANG Pan,CHEN Daizhao,LI Shuangjian,ZHOU Yuanquan,YANG Bo,WANG Yuanzheng,DING Yi,JIANG Huachuan..塔里木与四川盆地上震旦统白云岩储层沉积-成岩特征对比[J].成都理工大学学报（自然科学版）,2025,52(4):722-738,17.

基金项目

湖南省地质院科研项目(HNGSTP202323,HNGSTP202317) （HNGSTP202323,HNGSTP202317）

中国地质调查局地质调查项目(DD20230055) （DD20230055）

湖南省自然资源厅科研项目(20230102DZ). （20230102DZ）

成都理工大学学报（自然科学版）

OA北大核心

1671-9727

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