...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>SPE Reservoir Evaluation & Engineering >Residual Oil Saturation Determination for EOR Projects in Means Field, a Mature West Texas Carbonate Field
【24h】

Residual Oil Saturation Determination for EOR Projects in Means Field, a Mature West Texas Carbonate Field

机译：西得克萨斯成熟碳酸盐岩田均值油田EOR项目的剩余油饱和度测定

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The technical success of an enhanced oil recovery (EOR) project depends on two main factors: first, the reservoir remaining oil saturation (ROS) after primary and secondary operations, and second, the recovery efficiency of the EOR process in mobilizing the ROS. These two interrelated parameters must be estimated before embarking on a time-consuming and costly process for designing and implementing an EOR process. The oil saturation can vary areally and vertically within the reservoir, and the distribution of the ROS will determine the success of the EOR injectants in mobilizing the remaining oil. There are many methods for determining the oil saturation (Chang et al. 1988; Pathak et al. 1989), and these include core analysis, well-log analysis, log/inject/log (LIL) procedures (Richardson et al. 1973; Reedy 1984), and single-well chemical tracer tests (SWCTT) (Deans and Carlisle 1986). These methods have different depths of investigation and different accuracies, and they all provide valuable information about the distribution of ROS. No single method achieves the best estimate of ROS, and a combination of all these methods is essential in developing a holistic picture of oil saturation and in assessing whether the oil in place (OIP) is large enough to justify the application of an EOR process. As Teletzke et al. (2010) have shown, EOR implementation is a complex process, and a staged, disciplined approach to identifying the key uncertainties and acquiring data for alleviating the uncertainties is essential. The largest uncertainty in some cases is the ROS in the reservoir. This paper presents the results from a fieldwide data acquisition program conducted in a west Texas carbonate reservoir to estimate ROS as part of an EOR project assessment. The Means field in west Texas has been producing for more than the past 75 years, and the producing mechanisms have included primary recovery, secondary waterflooding, and the application of a CO_2 EOR process. The Means field is an excellent example of how the productive life and oil recovery can be increased by the application of new technology. The Means story is one of judicious application of appropriate EOR technology to the sustained development of a mature asset. The Means field is currently being evaluated for further expansion of the EOR process, and it was imperative to evaluate the oil saturation in the lower, previously undeveloped zones. This paper briefly outlines the production history, reservoir description, and reservoir management of the Means field, but this paper concentrates on the residual oil zone (ROZ) that underlies the main producing zone (MPZ) and describes a recent data acquisition program to evaluate the oil saturation in the ROZ. We discuss three major methods for evaluating the ROS: core analysis, LIL tests, and SWCTT tests.
机译：提高采收率（EOR）项目的技术成功取决于两个主要因素：首先，一次和二次操作后，储层剩余油饱和度（ROS），其次，在动员ROS时，EOR工艺的采收效率。在着手设计和实施EOR过程时，必须先估算这两个相互关联的参数。油层内的油饱和度可以在平面上和垂直方向上变化，ROS的分布将决定EOR注入剂在动员剩余油中的成功。有很多确定含油饱和度的方法（Chang等，1988； Pathak等，1989），其中包括岩心分析，测井分析，测井/注水/测井（LIL）程序（Richardson等，1973； Lichardson等，1973）。 （Reedy 1984）和单孔化学示踪剂测试（SWCTT）（Deans and Carlisle 1986）。这些方法具有不同的研究深度和准确性，并且都提供了有关ROS分布的有价值的信息。没有任何一种方法能够获得最佳的ROS估计值，并且所有这些方法的组合对于形成油饱和度的整体图以及评估就地采油（OIP）是否足够大以证明采用EOR工艺是必要的。如Teletzke等。 （2010年）表明，提高采收率的过程是一个复杂的过程，采用分阶段，有纪律的方法来识别关键不确定性并获取数据以减轻不确定性至关重要。在某些情况下，最大的不确定性是油藏中的ROS。本文介绍了在西德克萨斯碳酸盐岩储层中进行的一项现场数据采集计划的结果，以估算ROS作为EOR项目评估的一部分。德克萨斯州西部的Means油田已经生产了75年以上，其生产机制包括初次采收，二次注水和采用CO_2 EOR工艺。 Means领域是如何通过应用新技术来提高生产寿命和采油量的一个很好的例子。 “中庸之道”是明智的将适当的EOR技术应用于成熟资产的持续发展的应用之一。目前正在评估“均值”油田，以进一步扩大EOR工艺，必须评估先前未开发的较低地区的油饱和度。本文简要概述了Means油田的生产历史，储层描述和储层管理，但本文着重研究了主产区（MPZ）下方的剩余油区（ROZ），并介绍了一项最新的数据采集程序来评估ROZ中的油饱和度。我们讨论了评估ROS的三种主要方法：核心分析，LIL测试和SWCTT测试。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号