化学蒸汽驱不同温度区域的驱油特征
DOI:
作者:
作者单位:

作者简介:

刘晏飞(1980—),女,四川彭州人,工程师,从事采油工艺技术研究工作。联系电话:13838749913,E-mail:27631926@qq.com。

通讯作者:

基金项目:

国家科技重大专项“胜利油田特高含水期提高采收率技术”(2011ZX05011)


Characteristics of oil displacement in different temperature regions of chemical steam flooding
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    针对胜利油区孤岛油田中二北Ng5稠油油藏蒸汽驱过程中驱油效率和波及效率低的问题,进行化学蒸汽驱不同温度区域室内驱替实验。依据不同的油藏温度,将注入井至生产井之间划分为蒸汽带、凝结热水带和油藏温度带,从驱油效率和注入压力2个方面研究3个不同温度区域化学蒸汽驱的驱油特征。结果表明:在蒸汽带和凝结热水带,起泡剂溶液产生的泡沫可以起到封堵多孔介质中大孔道的作用,防止蒸汽汽窜和过热水指进,最佳起泡剂溶液的质量分数为0.3%;蒸汽带泡沫封堵作用较强,提高注入压力4.0 MPa,凝结热水带泡沫封堵能力减弱,提高注入压力1.6 MPa;在油藏温度带,起泡剂溶液和驱油剂溶液仅表现为表面活性剂驱油作用,其中驱油剂溶液起主要驱油作用,而起泡剂溶液的驱油作用相对较小。

    Abstract:

    Laboratory displacement experiment of chemical steam flooding in different temperature regions has been carried out because of low oil displacement efficiency and sweep efficiency of the steam flooding in Zhongerbei Ng5 of Gudao oilfield,Shengli petroliferous province. There are three different temperature zones from the injection wells to the production wells:steam zone,hot water condensation zone and reservoir temperature zone. The displacement characteristics of the chemical steam flooding in different temperature regions were studied from displacement efficiency and injection pressure.The results show that foam produced by foaming agent solution could plug big channel in porous media and prevent steam breakthrough and superheating water fingering in the steam zone and hot water condensation zone. Injection pressure could be increased by 4.0 MPa and 1.6 MPa respectively at the best mass fraction of foaming agent(0.3%)in the steam zone and hot water condensation zone. In the reservoir temperature zone,the foaming agent and displacement agent only act as surfactant flooding and the displacement agent played important role in the driving process.

    参考文献
    相似文献
    引证文献
引用本文

刘晏飞,唐亮,熊海云,徐太宗,刘继伟,张红梅.化学蒸汽驱不同温度区域的驱油特征[J].油气地质与采收率,2015,22(3):115~118

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2015-06-03