石油勘探与开发 >

2019 , Vol. 46 >Issue 4: 728 - 738

DOI: https://doi.org/10.11698/PED.2019.04.11

油气田开发

低幅度构造对特低渗透油藏油气水富集及开发动态的控制效应

  • 王建民 ,
  • 张三 ,
  • 杜伟 ,
  • 李乐 ,
  • 乔贞 ,
  • 张俊 ,
  • 段梦悦
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  • 1. 西安石油大学地球科学与工程学院,西安 710065;
    2. 油气藏地质及开发工程国家重点实验室（成都理工大学）,成都 610000
王建民（1962-）,男,陕西富平人,博士,西安石油大学教授,主要从事沉积、储集层、油气成藏及开发地质等方面的教学与科研工作。地址：陕西省西安市雁塔区电子2路东段18号,西安石油大学地球科学与工程学院,邮政编码：710065。E-mail: wangjm@xsyu.edu.cn

收稿日期: 2018-08-30

  修回日期: 2019-03-20

  网络出版日期: 2019-07-17

基金资助

油气藏地质及开发工程国家重点实验室（成都理工大学）开放基金项目（PLC20190203）; 陕西省自然科学基金项目（2006Z07, 2010JM5003）; 西安石油大学青年科技创新基金项目（2012BS010）

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The control effect of low-amplitude structure on oil-gas-water enrichment and development performance of ultra-low permeability reservoirs

  • WANG Jianmin ,
  • ZHANG San ,
  • DU Wei ,
  • LI Le ,
  • QIAO Zhen ,
  • ZHANG Jun ,
  • DUAN Mengyue
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  • 1. School of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an 710065, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu 610000, China

Received date: 2018-08-30

  Revised date: 2019-03-20

  Online published: 2019-07-17

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摘要

依据钻井、测井、试采及动态监测资料,采用密井网与多因素地质建模、宏微观与静动态分析相结合的方法,探讨了低幅度构造对特低渗透油藏油气富集、开发动态的控制效应。研究表明,低幅度构造对特低渗透油藏原始油气水的分布富集及注水开发动态的演变趋势始终具有显著的控制和影响效应,低幅度构造既是油气运移的良好指向也是油气相对富集的有利场所;低幅度构造对特低渗透油藏的控制效应主要取决于其构造幅度与构造规模;构造幅度、构造规模越大,构造部位越高,储集层特征参数、油气富集程度越高,开发效果越好,控制和影响的空间范围越大;含水率、油井产量总是围绕着低幅度构造的高低起伏而有序变化;注水开发动态响应与注采井所处的相对构造位置密切相关,注水总是优先向构造低洼处推进,再逐渐向构造高部位上移,水淹范围不断扩展;同时促使构造低洼部位的部分油气向构造高部位就近分配,形成新的油气富集,高部位油井的动态储量因此增加,产能持续保持稳定。图10表1参38

关键词： 特低渗透油藏; 低幅度构造; 油气水富集; 开发动态; 控制效应

本文引用格式

王建民 , 张三 , 杜伟 , 李乐 , 乔贞 , 张俊 , 段梦悦 . 低幅度构造对特低渗透油藏油气水富集及开发动态的控制效应[J]. 石油勘探与开发, 2019 , 46(4) : 728 -738 . DOI: 10.11698/PED.2019.04.11

Abstract

Based on drilling, logging, test production and dynamic monitoring data, the control effects of low-amplitude structure on hydrocarbon accumulation and development performance of ultra-low permeability reservoirs were discussed by using the methods of dense well pattern, multi-factor geological modeling, macro and micro analysis and static and dynamic analysis. The results show that the low-amplitude structure always had a significant control and influence on the distribution and accumulation of original hydrocarbon and water and the evolution trend of water flooding performance in ultra-low permeability reservoirs, and it was not only the direction of oil and gas migration, but also a favorable place for relative accumulation of oil and gas. The controlling effect of low-amplitude structure on ultra-low permeability reservoir mainly depended on its tectonic amplitude and scale; the larger the tectonic amplitude and scale, and the higher the tectonic position of the low amplitude structure, the better the reservoir characteristic parameters, oil and gas enrichment degree and development effect, and the larger the spatial scope it controlled and influenced; water cut and oil well output always fluctuated orderly with the height of the low-amplitude structure; the dynamic response of waterflooding was closely related to the relative structural position of the injection and production wells; the injected water always advanced to the low-lying area of the structure first and then moved up to the high-lying area of the structure gradually; with the continuous expansion of the flooded area, part of the oil and gas in the low-lying part of the structure was forced to be distributed to the high part of the structure, resulting in a new oil and gas enrichment, so that the dynamic reserves of oil wells in the high part increased, and the production capacity remained stable.

Key words： ultra-low permeability reservoirs; low-amplitude structure; oil-gas-water enrichment; development dynamics; control effect

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