• 首页
  • 学报简介
  • 编委会
  • 投稿指南
  • 订阅指南
  • 过刊浏览
  • 在线投稿
  • 联系我们
  • 网络预出版
  • English

本文将参加年度优秀论文评选,如果您觉得这篇文章很好,请投下您宝贵的一票,谢谢! 支持(0)   不支持(0)

冀中坳陷文安斜坡潜山带天然气成藏特征
投稿时间:2020-10-20  修订日期:2020-11-28  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2021063
摘要点击次数: 48
全文下载次数: 81
作者单位地址
田建章 中国石油华北油田公司 河北省任丘市建设中路1号
张锐锋 中国石油华北油田公司 
李小冬 中国石油华北油田公司 
王鑫 中国石油华北油田公司 
罗静 中国石油华北油田公司 
赵梅红 中石油渤海钻探井下作业分公司 
卢山 中国石油华北油田公司 
潘清华 中国石油华北油田公司 
焦亚先 中国石油华北油田公司 
曾婷 中国石油华北油田公司 
基金项目:中国石油天然气股份有限公司重大科技专项“华北油田持续有效稳产勘探开发关键技术研究与应用”(2017E-15)、华北油田公司校企合作课题(HBYT-YJY-2018-JS-177)资助
中文摘要:冀中坳陷潜山天然气是渤海湾盆地深层-超深层油气勘探的重要领域,文安斜坡潜山带则是冀中坳陷深潜山天然气勘探的主战场,但关于文安斜坡潜山带内、中、外三个不同含气带的油气来源、成藏期次和成藏过程等缺乏系统研究。本文在对各带天然气组分、碳同位素、稀有气体同位素和轻烃化合物等分析的基础上,探讨各带天然气的成因与来源,利用流体包裹体方法厘清不同潜山带油气成藏充注过程,继而建立油气成藏模式,并对比分析不同潜山带油气成藏差异性。结果表明,文安斜坡潜山带内带天然气为高-过成熟的油型气,主要来源于Es4+Ek烃源岩,储层经历了两期不同成熟度的天然气充注过程;中带天然气主要为煤型气,主要来源于C-P煤系烃源岩,混有部分Es4+Ek烃源岩生成的天然气,具有两期不同成熟度的油气充注过程;外带天然气为低成熟阶段的生物-热催化过渡带气经氧化改造而形成的次生生物气,主要来源于C-P烃源岩,仅经历了一期天然气充注过程。综合分析认为,文安斜坡潜山带发育双源供烃-断层不整合输导-分带差异聚集的油气成藏模式,内、中、外三个含气带分别发育单向单源供烃似层状高-过成熟气藏、双向双源供烃断溶体成熟-高成熟油气藏以及单向单源供烃层状低熟-生物气藏三种油气藏类型。本文结果为深化对该区天然气来源、成藏规律的认识和后续勘探领域的拓展提供有益的信息。
中文关键词:天然气来源  流体包裹体  成藏特征  文安斜坡潜山带  冀中坳陷
 
Natural Gas Accumulation Characteristic of Wen’an Slope Buried-Hill Belts in the Jizhong Sub-basin, Bohai Bay Basin
Author NameAffiliationAddress
TIAN Jianzhang Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 河北省任丘市建设中路1号
ZHANG Ruifeng Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
LI Xiaodong Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
WANG Xin Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
LUO Jing Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
ZHAO Meihong CNPC Bohai Drilling Engineering Company Limited 
LU Shan Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
PAN Qinghua Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
Jiao Yaxian Exploration and Development Research Institute, PetroChina Huabei Oilfield Company 
ZENG Ting Exploration and Development Research Institute,PetroChina Huabei Oilfield Company 
Abstract:The natural gas in Wen’an slope buried-hill belts, Jizhong sub-basin have become the important target area for the deep and ultra-deep reservoir explorations in the Bohai Bay Basin. However, the gas sources, charging history and gas accumulation process are the lack of systematic research. In this paper, the identification of gas origin and source are conducted based on the chemical and stable carbon isotopic compositions, rare gas isotopic compositions and light hydrocarbons. The fluid inclusions analysis is applied to reveal the charging history, then gas accumulation model is established, and the differences in the gas accumulation from tree belts are compared. The results show that the natural gas in the inner belt is high-mature oil-associated gas, mainly derived from Es4+Ek source rock, and the gas reservoirs have experienced two different maturity of natural gas filling process. The natural gas in the middle belt is coal-derived gas, mainly derived from the C-P coal-measure source rocks, mixed some gases from Es4+Ek source rock, and the gas reservoirs have the characteristics of two different maturity of hydrocarbon fillings. The gases in the outward belt is biothermal-catalyzed transition zone gases at low maturity stage through oxidation modification. By a comprehensive analysis, the Wen’an slope buried-hill belts develop the model of “dual source hydrocarbon supply-fault unconformity transport-zoning difference accumulation”, which developed into three types of reservoirs in the three belts: a. one-way single-source hydrocarbon-supply, stratified high-over- mature gas reservoirs; b. two-way two-source hydrocarbon-supply, fault-corrosion blocked mature to highly mature oil-gas reservoirs; and c. one-way single-source hydrocarbon-supply, stratified low-mature/biological gas reservoirs.
keywords:Natural gas sources  Fluid inclusion  Gas accumulation characteristic  Wen’an slope buried-hill belts  Jizhong sub-basin
查看全文  查看/发表评论  下载PDF阅读器
您是第38177901位访问者  京ICP备05032737号-7  
版权所有:《地质学报》中文版
主管单位:中国科学技术协会 ; 主办单位:中国地质学会
地  址: 北京市西城区百万庄大街26号; 邮编:100037 ; 电话:010-68312410,010-68999025; E-mail: dizhixuebao@163.com
本系统由北京勤云科技发展有限公司设计 

京公网安备 11010202007916号

WeChat