• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Offshore technology conference;OTC 10 >Heat Transfer and Well Bore Stability Analysis in Hydrate Bearing Zone in the East Sea, South Korea
【24h】

Heat Transfer and Well Bore Stability Analysis in Hydrate Bearing Zone in the East Sea, South Korea

机译：韩国东海水合物含气层的传热和井筒稳定性分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

For sustainable development and to feed the world's energy demand continuous supply of fuel resources is of utmost important. Wells drilled in deep waters and permafrost regions contain challenging gas hydrate bearing formations. The oil industry has made certain advancements by drilling and casing gas hydrates bearing formation safely. However, when a well gets deeper gas hydrates start dissociation behind the casing due to heat transfer from the heated mud.The objective of this study is to analyze the heat transfer to these formations and drilling parameters effecting heat transfer. We developed a wellbore temperature simulator to model the temperature profile in deep formations and to determine the disturbance due to the circulation of the heated mud. We used the range of hydrate dissociation for the wellbore stability analysis to monitor the disturbance caused in gas hydrate bearing formations. The stability analysis shows that a well is in a great danger, if we are drilling deep formations through gas hydrates.On the basis of wellbore stability analyses we suggest to insulate the outer surface of casing for controlling the heat transfer and dissociation of gas hydrates. The suggested approach is found to be very useful for decreasing heat transfer and consequently reducing gas hydrates dissociation and for stabilizing the well in deep water and permafrost regions.
机译：为了可持续发展和满足世界能源需求，持续供应燃料资源至关重要。在深水区和多年冻土区钻探的油井中含有具有挑战性的含天然气水合物的地层。石油工业通过安全钻探和套管天然气水合物轴承地层而取得了一定的进步。然而，当一口井变得更深时，由于来自加热的泥浆的热传递，天然气水合物开始在套管后解离。 这项研究的目的是分析对这些地层的传热和影响传热的钻井参数。我们开发了一个井眼温度模拟器，以对深层中的温度分布进行建模，并确定由于加热的泥浆的循环而引起的扰动。我们使用水合物的解离范围进行井眼稳定性分析，以监测在含天然气水合物的地层中引起的扰动。稳定性分析表明，如果我们通过天然气水合物来钻探深层地层，那么一口井将面临极大的危险。 在井眼稳定性分析的基础上，我们建议对套管的外表面进行隔热处理，以控制天然气水合物的传热和分解。发现所建议的方法对于减少热传递并因此减少气体水合物的离解以及稳定深水和多年冻土区的井非常有用。

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