• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >A Parametric Study and Economic Evaluation of Drilling Patterns in Deep, Thick CBM Reservoirs.
【24h】

A Parametric Study and Economic Evaluation of Drilling Patterns in Deep, Thick CBM Reservoirs.

机译：深厚煤层气储层钻井模式的参数研究与经济评价。

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

Over the past decade, the production from unconventional reservoirs such as coalbed methane has increased dramatically. The focal driving force for this growth in coalbed methane production was the development and promulgation of reservoir engineering and completion technology.;There have been many studies performed on the well configuration and production optimization techniques in the coal seams. According to many of these studies horizontal, deviated and multi-lateral wells are of more benefits compared to the vertical wells. However, the targets of these studies have mostly been the thin coal seams while this result might not hold for the thick CBM reservoirs. The experience has proved that one thick coal is better than an equivalent thickness of multiple thin coals. Samples of the deep thickest accumulation of coal in the world can be found in some of the areas of the United States such as Uintah basin and Piceance basin in Colorado, Black Warrior basin in Alabama and Arkoma basin in Oklahoma and Alaska. The thickness of coal beds in these areas can reach up to 150 ft and they can be as deep as 9000 ft.;Although horizontal drilling will result in higher gas production and consequently more revenue, the drilling cost in these wells are significantly higher than the vertical wells. When the coal beds are thick enough that the contact of wellbore and formation is not a limiting issue, the practicality of drilling horizontally versus multiple vertical wells might be questioned.;In this work, the most appropriate drilling patterns in thick and deep CBM reservoirs have been identified. A sensitivity analysis has been performed with the intention of addressing the effect of different reservoir parameters and well configurations germane to methane production from CBM. These characteristics include fracture permeability, fracture porosity, gas content, and desorption time. The yardstick for comparing the economical practicality of different drilling configurations under diverse reservoir properties is the Net Present Value (NPV).
机译：在过去的十年中，非常规储层（例如煤层气）的产量急剧增加。煤层气产量增长的主要动力是油藏工程技术和完井技术的开发和颁布。煤层气井配置和生产优化技术已有许多研究。根据这些研究中的许多研究，与垂直井相比，水平井，斜井和多边井更具优势。但是，这些研究的目标大多是薄煤层，而对于厚煤层气藏来说，这一结果可能不成立。经验证明，一种厚煤要好于多种薄煤的同等厚度。在美国的某些地区，例如在科罗拉多州的Uintah盆地和Piceance盆地，阿拉巴马州的Black Warrior盆地以及俄克拉荷马州和阿拉斯加的Arkoma盆地，可以找到世界上最深的煤炭堆积样品。这些地区的煤层厚度可达到150英尺，最深可达9000英尺。尽管水平钻井将导致更高的天然气产量并因此获得更多收入，但这些井的钻井成本明显高于垂直井。当煤层足够厚以至于井眼与地层的接触不是一个限制问题时，可能会质疑水平钻井和多口垂直井的实用性。被确定。为了解决不同储层参数和井配置与煤层气甲烷生产密切相关的影响，已经进行了敏感性分析。这些特征包括裂缝渗透率，裂缝孔隙率，气体含量和解吸时间。比较不同储层属性下不同钻井配置的经济实用性的标准是净现值（NPV）。

著录项

  • 作者

    Nasar, Ali Omran Ali.;

  • 作者单位

    West Virginia University.;

  • 授予单位 West Virginia University.;
  • 学科 Engineering Petroleum.
  • 学位 M.S.
  • 年度 2011
  • 页码 65 p.
  • 总页数 65
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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