石油学报 ›› 2020, Vol. 41 ›› Issue (10): 1188-1196.DOI: 10.7623/syxb202010003

• 地质勘探 • 上一篇    下一篇

二连盆地乌兰花凹陷特低渗安山岩储层的有效性评价

赵建斌1, 黄显华2, 刘晓燕3, 李振林1, 田扬1, 丁伟3, 刘玲莉3   

  1. 1. 中国石油集团测井有限公司测井应用研究院 陕西西安 710077;
    2. 中国石油华北油田公司勘探开发研究院 河北任丘 062550;
    3. 中国石油勘探开发研究院亚太研究所 北京 100083
  • 收稿日期:2019-09-05 修回日期:2020-02-10 出版日期:2020-10-25 发布日期:2020-11-05
  • 通讯作者: 赵建斌,男,1984年10月生,2009年获中国石油大学(华东)学士学位,2012年获中国石油大学(北京)硕士学位,现为中国石油集团测井有限公司测井应用研究院高级工程师,主要从事岩石物理实验分析及测井资料解释评价工作。
  • 作者简介:赵建斌,男,1984年10月生,2009年获中国石油大学(华东)学士学位,2012年获中国石油大学(北京)硕士学位,现为中国石油集团测井有限公司测井应用研究院高级工程师,主要从事岩石物理实验分析及测井资料解释评价工作。Email:zhaojb123_cpl@163.com
  • 基金资助:

    中国石油天然气股份有限公司科技重大专项"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)资助。

Effectiveness evaluation of extra-low permeability andesite reservoirs in Wulanhua sag,Erlian Basin

Zhao Jianbin1, Huang Xianhua2, Liu Xiaoyan3, Li Zhenlin1, Tian Yang1, Ding Wei3, Liu Lingli3   

  1. 1. Applied Research Institute, China Petroleum Logging Co., Ltd, Shaanxi Xi'an 710077, China;
    2. Exploration and Development Research Institute, PetroChina Huabei Oilfield Company, Hebei Renqiu 062550, China;
    3. Department of Asia-Pacific E&P, PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China
  • Received:2019-09-05 Revised:2020-02-10 Online:2020-10-25 Published:2020-11-05

摘要:

针对二连盆地乌兰花凹陷安山岩储层的特性认识不清、有效储层划分不准确的问题,利用岩心薄片、黏土矿物分析、物性测试以及核磁共振实验等手段开展了岩石储集空间特征、岩石蚀变程度、测井响应特征分析。在此基础上,重点开展了基于核磁共振实验的安山岩储层有效孔隙度计算模型研究,开发了相适应的测井解释评价模块,并结合常规测井和试油结果建立了安山岩储层的分类标准。结果表明:安山岩储集空间具有发育"微孔"、"杏仁孔"双孔隙的特征,且以微孔为主;根据不同蚀变程度所建立的安山岩有效孔隙度计算模型具有很高的精度,平均绝对误差为0.16%,平均相对误差为19.40%;新测井解释储层分类标准在实际应用中与试油结论具有很好的一致性,有利于乌兰花凹陷安山岩有效储层的精确划分,并为该地区开发方案的设计及可采储量评价提供技术支持。

关键词: 乌兰花凹陷, 蚀变安山岩, 核磁共振, 有效孔隙度, 有效储层

Abstract:

Aiming at the problems of unclear understanding of the characteristics of andesite reservoirs in Wulanhua sag, Erlian Basin and inaccurate classification of effective reservoirs, this paper analyzes the characteristics of reservoir spaces, rock alteration extents, and logging response characteristics by means of the thin sections of core samples, clay minerals, physical properties and nuclear magnetic resonance experiments. This study focuses on the calculation model of effective porosity of andesite reservoirs based on nuclear magnetic resonance experiments, develops a suitable logging interpreting evaluation module, and establishes the classification standard of andesite reservoirs based on the results of conventional logging and oil testing. The results show that the reservoir space of andesite has dual pore characteristics of developing "micropores" and "amygdales", and micropores are dominant. The calculation model of effective porosity of andesite established according to different alteration extents has high accuracy. The average absolute error is 0.16%, and the average relative error is 19.40%. The new classification standard of reservoir based on logging interpretation is in good agreement with the results of oil testing in applications, which is conducive to the precise classification of effective andesite reservoirs in Wulanhua sag, and provides technical support for the design of development program and the evaluation of recoverable reserves in this area.

Key words: Wulanhua sag, altered andesite, nuclear magnetic resonance, effective porosity, effective reservoir

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