...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of geophysics and engineering >Interference well testing-variable fluid flow rate
【24h】

Interference well testing-variable fluid flow rate

机译：干扰井测试-可变流体流速

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

At present when conducting an interference well test a constant flow rate (at the 'active' well) is utilized and the type-curve matching technique (where only 2-3 values of pressure drops are matched) is used to estimate the porosity-total compressibility product and formation permeability. For oil and geothermal reservoirs with low formation permeability the duration of the test may require a long period of time and it can be difficult to maintain a constant flow rate. The qualitative term 'long' period of time means that (at a given distance between the 'active' and 'observational' well) more test time (for low permeability formations) is needed to obtain tangible pressure drops in the 'observational' well. In this study we present working equations which will allow us to process field data when the flow rate at the 'active' well is a function of time. The shut-in period is also considered. A new method of field data processing, where all measured pressure drops are utilized, is proposed. The suggested method allows us to make use of the statistical theory to obtain error estimates on the regression parameters. It is also shown that when high precision (resolution) pressure gauges are employed the pressure time derivative equations can be used for the determination of formation hydraulic diffusivity. An example is presented to demonstrate the data processing procedure.
机译：目前，在进行干扰井测试时，使用恒定流量（在“活动”井处），并且使用类型曲线匹配技术（仅匹配2-3个压降值）来估算总孔隙率可压缩性产物和地层渗透率。对于地层渗透率低的石油和地热油藏，测试的持续时间可能需要较长的时间，并且可能难以维持恒定的流量。定性术语“长”时间段是指（在“活动”井和“观测”井之间的给定距离处）需要更多的测试时间（对于低渗透率地层）才能在“观测”井中获得明显的压降。在这项研究中，我们提出了工作方程，当“活动”井的流量是时间的函数时，将使我们能够处理现场数据。还考虑了休息时间。提出了一种利用所有测得的压降的现场数据处理新方法。建议的方法使我们可以利用统计理论来获得回归参数的误差估计。还显示出，当使用高精度（分辨率）压力计时，压力时间导数方程可用于确定地层水力扩散率。给出一个例子来说明数据处理过程。

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