...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Natural Gas Industry B >Hydrocarbon accumulation characteristics and enrichment laws of multi-layered reservoirs in the Sichuan Basin
【24h】

Hydrocarbon accumulation characteristics and enrichment laws of multi-layered reservoirs in the Sichuan Basin

机译：四川盆地多层储层油气成藏特征及富集规律

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Sichuan Basin represents the earliest area where natural gas is explored, developed and comprehensively utilized in China. After over 50 years of oil and gas exploration, oil and gas reservoirs have been discovered in 24 gas-dominant layers in this basin. For the purpose of predicting natural gas exploration direction and target of each layer in the Sichuan Basin, the sedimentary characteristics of marine and continental strata in this basin were summarized and the forms of multi-cycled tectonic movement and their controlling effect on sedimentation, diagenesis and hydrocarbon accumulation were analyzed. Based on the analysis, the following characteristics were identified. First, the Sichuan Basin has experienced the transformation from marine sedimentation to continental sedimentation since the Sinian with the former being dominant. Second, multiple source–reservoir assemblages are formed based on multi-rhythmed deposition, and multi-layered reservoir hydrocarbon accumulation characteristics are vertically presented. And third, multi-cycled tectonic movement appears in many forms and has a significant controlling effect on sedimentation, diagenesis and hydrocarbon accumulation. Then, oil and gas reservoir characteristics and enrichment laws were investigated. It is indicated that the Sichuan Basin is characterized by coexistence of conventional and unconventional oil and gas reservoirs, multi-layered reservoir hydrocarbon supply, multiple reservoir types, multiple trap types, multi-staged hydrocarbon accumulation and multiple hydrocarbon accumulation models. Besides, its natural gas enrichment is affected by hydrocarbon source intensity, large paleo-uplift, favorable sedimentary facies belt, sedimentary–structural discontinuity plane and structural fracture development. Finally, the natural gas exploration and research targets of each layer in the Sichuan Basin were predicted according to the basic petroleum geologic conditions, enrichment laws and exploration status.
机译：四川盆地是中国最早勘探，开发和综合利用天然气的地区。经过50多年的油气勘探，在该盆地的24个以气为主的层中发现了油气藏。为了预测四川盆地每一层天然气的勘探方向和目标，总结了该盆地海相和陆相地层的沉积特征，并提出了多循环构造运动的形式及其对沉积，成岩和沉积的控制作用。分析了油气成藏。基于该分析，确定了以下特征。首先，自震旦纪以来，四川盆地经历了从海洋沉积到大陆沉积的转变，前者占主导地位。其次，在多节律沉积的基础上形成了多个烃源组合，并垂直呈现了多层油气成藏特征。第三，多周期构造运动以多种形式出现，对沉积​​，成岩作用和油气成藏具有重要的控制作用。然后，研究了油气藏的特征和富集规律。结果表明，四川盆地具有常规油气藏与非常规油气藏共存，多层油气藏供应，多种油气藏类型，多种圈闭类型，多阶段油气成藏和多种油气成藏模式。此外，其天然气富集还受到烃源强度，古隆起大，有利的沉积相带，沉积－结构间断面和构造裂缝发育的影响。最后，根据基本石油地质条件，富集规律和勘探现状，对四川盆地各层天然气勘探目标进行了预测。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号