• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of natural gas science and engineering >A simulation method for modified isochronal well testing to determine shale gas well productivity
【24h】

A simulation method for modified isochronal well testing to determine shale gas well productivity

机译：用于确定页岩气井产能的改进等时井测试的模拟方法

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

A simulation method to determine shale gas well productivity is developed based on modified isochronal well testing. The method is reliable and accurate and reduces the well testing time. First, the physical properties and wellbore parameters of the reservoir are obtained using the production data analysis method or well testing method. Then the production sequence and time sequence are determined. The production sequence is estimated by the production data analysis method, which can calculate gas well production under different pressures. The testing time interval and duration are determined by using the time value of the inflection points on the curve of the productivity coefficient and the time sequence. A modified isochronal well testing simulation model is developed based on the dynamic change patterns of the reservoir and well tubing, the production sequence, and time sequence. Finally, the simulation model is solved by the conventional production well test regression method, and the well productivity and open flow potential are calculated. Using a shale gas well in the Changqing oilfield, China, as a case study, field test results and simulation result are analyzed and compared. The results confirm the reliability of the new method in a shale gas reservoir; the precision of the shale gas productivity evaluation improved and the cost and duration of the test were reduced. This method can be expanded to other unconventional tight gas reservoirs. (C) 2015 Elsevier B.V. All rights reserved.
机译：基于改进的等时井测试，开发了一种确定页岩气井产能的模拟方法。该方法可靠，准确，减少了试井时间。首先，使用生产数据分析方法或试井方法获得储层的物理性质和井眼参数。然后确定生产顺序和时间顺序。通过生产数据分析方法估算生产顺序，可以计算不同压力下的气井产量。通过使用生产率系数和时间序列曲线上拐点的时间值来确定测试时间间隔和持续时间。根据储层和油管的动态变化模式，生产顺序和时间顺序，开发了一种改进的等时试井模拟模型。最后，通过常规生产试井回归方法对模拟模型进行求解，计算出井的产能和开流潜力。以中国长庆油田的一个页岩气井为例，对现场测试结果和模拟结果进行了分析和比较。结果证实了该方法在页岩气储层中的可靠性。页岩气生产率评估的精度得到提高，测试成本和时间减少了。该方法可以扩展到其他非常规致密气藏。 （C）2015 Elsevier B.V.保留所有权利。

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