天然气地球科学

• 天然气地质学 • 上一篇    下一篇

南华北盆地太康隆起西部新区上古生界天然气成藏条件与钻探发现

张交东,曾秋楠,周新桂,刘旭锋,张宏达,王玉芳,毕彩芹,曹建康,杜建波,于明德,张扬,常大宇,王付斌,苗慧心   

  1. 1.中国地质调查局油气资源调查中心,北京 100083;
    2.中国石化河南油田分公司勘探开发研究院,河南 郑州 450000;
    3.中国石油化工股份有限公司华北分公司,河南 郑州 450000;4.中国地质科学院,北京 100081
  • 收稿日期:2017-06-07 修回日期:2017-09-28 出版日期:2017-11-10 发布日期:2017-11-10
  • 通讯作者: 曾秋楠(1988-),女,北京人,工程师,博士在读,主要从事油气成藏及储层评价研究. E-mail:zqn1001@foxmail.com
  • 作者简介:张交东(1968-),男,山东潍坊人,教授级高级工程师,主要从事油气资源勘查和基础地质研究. E-mail:dzyzjd@163.com.
  • 基金资助:
    “大型油气田和煤层气开发”国家科技重大专项任务“南华北地区海陆交互相页岩气勘查评价应用试验”(编号:2016ZX05034004-006);地质调查项目“南华北盆地油气资源战略调查”(编号:1211302108023);国家自然科学基金项目“合肥盆地侏罗—白垩纪沉积层序及其对周缘隆起的差异响应”(编号:D0206-41372123)联合资助.

Drilling achievements and gas accumulation in the Upper Paleozoic in western new area of Taikang Uplift,Southern North China Basin

Zhang Jiao-dong,Zeng Qiu-nan,Zhou Xin-gui,Liu Xu-feng,Zhang Hong-da,Wang Yu-fang,Bi Cai-qin,Cao Jian-kang,Du Jian-bo,Yu Ming-de,Zhang Yang,Chang Da-yu,Wang Fu-bin,Miao Hui-xin   

  1. 1.Oil and Gas Resources Survey Center of CGS,Beijing 100083,China;
    2.Exploration and Development Research Institute of Henan Oilfield,SINOPEC,Zhengzhou  450000,China;
    3.Huabei Oilfield,SINOPEC,Zhengzhou 450000,China;4.Chinese Academy of Geological Sciences,Beijing 100081,China
  • Received:2017-06-07 Revised:2017-09-28 Online:2017-11-10 Published:2017-11-10

摘要:

南华北盆地是我国东部重要的油气远景区之一,历经多年勘探,但始终没有工业性突破。以地震和钻井等资料综合分析为基础,以上古生界油气为主要目的层,综合考虑太康隆起油气地质条件,重点考虑保存条件,同时参考烃源岩及储层条件,可将太康隆起西部地区重新划分为5个次级单元,即:北部斜坡带、中部鼻状构造带、尉氏—薛店南次凹带、通许凸起和新郑凸起。太康隆起西部上古生界残存分布面积广、厚度大,埋藏深度适中,三叠系残存较为完整,构造整体比较稳定,圈闭发育,具备早期生烃的保存和成藏条件。从中优选出庄头断鼻部署实施钻探,在上古生界发现气测异常69段,累计厚度为81.3m,气测异常全烃最大值为24.1%;测井综合解释致密气7层,累计厚度为41.6m,其中厚度超过7m的单层为4层;页岩气层9层,累计厚度为72.3m,其中最大单层厚度为28.4m,进一步展示了太康隆起西部新区天然气的勘探前景,对推进南华北地区海陆交互相天然气资源调查和评价具有重要意义。
 

关键词: 南华北盆地, 太康隆起, 尉参1井, 上古生界, 天然气成藏条件

Abstract:

Based on the analysis of seismic data and well data of existing drilling,and took the characteristics of fracture structure,tectonic deformation and relict strata distribution in the Mesozoic,the sub-units of west Taikang Uplift in Southern North China Basin is re-divided,and the Zhuangtou fault nose is optimized,where Well Weican-1 was deployed.The well revealed a good exploration prospect by the discovery of 69 gas logging abnormality,with an accumulated thickness of 81.29m and a max hydrocarbon value of 24.118 3%,in the Upper Paleozoic.After comprehensive analysis,it is concluded that the hydrocarbon shows of Well Weican-1 in Upper Paleozoic is closely related to residual thickness of the overlying Triassic strata,and the study area is confirmed to be relatively stable in tectonic conditions.Consider the features of petroleum geological conditions,especially the effective sealing and preservation conditions,the west Taikang Uplift,where the dominant remnants of Upper Paleozoic is widely distributed with large thickness,medium burial depth,well preserved Triassic,and relatively stable,would be an advantaged Paleozoic natural gas foreground area with good preservation conditions,and therefore further advanced the resources investigation of continental-oceanic interactive shale gas.
 

Key words: Southern North China Basin, Taikang Uplift, Well Weican-1, Upper Paleozoic, Gas accumulation conditions.

中图分类号: 

  • TE122.1

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