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Application of the gravity-assisted tertiary gas injection processes.

机译:重力辅助三次气体注入工艺的应用。

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摘要

Gravity assisted tertiary gas injection processes can produce a large amount of incremental tertiary oil from water drive oil reservoirs. These processes include the Double Displacement Process (DDP) and the Second Contact Water Displacement (SCWD) process.; The DDP and the SCWD process were conducted in a transparent sand-pack micromodel, and a pore-level observation was performed to investigate the microscopic mechanisms of the two processes. Observation of the two processes confirmed that the oil films play a very important role in achieving high recovery efficiencies in the DDP. In the SCWD process, trapped gas reduces the possibility of the residual oil being trapped in the center of the pores in the second water flood. Moreover, reservoir simulations at reservoir scale were performed to investigate the macroscopic level mechanisms of the two processes. The results have shown that both processes are efficient methods to recover the residual oil to water.
机译:重力辅助三次气体注入过程可从水驱油藏中产生大量增量三次油。这些过程包括双重置换过程(DDP)和二次接触水置换(SCWD)过程。 DDP和SCWD工艺在透明的沙堆微模型中进行,并进行了孔隙水平观测以研究这两个工艺的微观机理。对这两个过程的观察证实,油膜在DDP中实现高回收效率方面起着非常重要的作用。在SCWD过程中,截留的气体减少了第二次注水中残留油被截留在孔隙中心的可能性。此外,在储层范围内进行了储层模拟,以研究这两个过程的宏观机制。结果表明,两种方法都是将残余油回收到水中的有效方法。

著录项

  • 作者

    Ren, Weishan.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Engineering Petroleum.
  • 学位 M.Sc.
  • 年度 2002
  • 页码 139 p.
  • 总页数 139
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 石油、天然气工业;
  • 关键词

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