• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Society of Petroleum Engineers Asia Pacific Oil Gas Conference and Exhibition >Evaluation of the Gas Production Potential of Marine Hydrate Deposits in the Ulleung Basin of the Korean East Sea
【24h】

Evaluation of the Gas Production Potential of Marine Hydrate Deposits in the Ulleung Basin of the Korean East Sea

机译：韩国东海蔚山水合物沉积物的气体生产潜力评价

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

摘要

Although significant hydrate deposits are known to exist in the Ulleung Basin of the Korean East Sea, their survey and evaluation as a possible energy resource has not yet been completed. However, it is possible to develop preliminary estimates of their production potential based on the limited data that are currently available. These include the elevation and thickness of the Hydrate-Bearing Layer (HBL), the water depth, and the water temperature at the sea floor. Based on this information, we developed estimates of the local geothermal gradient that bracket its true value. Reasonable estimates of the initial pressure distribution in the HBL can be obtained because it follows closely the hydrostatic. Other critical information needs include the hydrate saturation, and the intrinsic permeabilities of the system formations. These are treated as variables, and sensitivity analysis provides an estimate of their effect on production. Based on the geology of similar deposits, it is unlikely that Ulleung Basin accumulations belong to Class 1 (involving a HBL underlain by a mobile gas zone). If Class 4 (disperse, low saturation accumulations) deposits are involved, they are not likely to have production potential. The most likely scenarios include Class 2 (HBL underlain by a zone of mobile water) or Class 3 (involving only an HBL) accumulations. Assuming nearly impermeable confining boundaries, this numerical study indicates that large production rates (several MMSCFD) are attainable from both Class 2 and Class 3 deposits using conventional technology. The sensitivity analysis demonstrates the dependence of production on the well design, the production rate, the intrinsic permeability of the HBL, the initial pressure, temperature and hydrate saturation, as well as on the thickness of the water zone (Class 2). The study also demonstrates that the presence of confining boundaries is indispensable for the commercially viable production of gas from these deposits.
机译：虽然显著水合物沉积已知在韩国东海，他们的调查和评估作为一个可能的能源资源的郁陵盆地存在尚未完成。然而，有可能开发基于当前可用数据有限的生产潜力的初步估计。这些包括高度和厚度的含水合物层（HBL），水的深度，并在海底水的温度。基于这些信息，我们开发了当地的地热梯度括其真实价值的估计。在HBL的初始压力分布的合理估计可以因为它紧随静液压来获得。其他关键信息需求包括水合物饱和度和系统结构的固有渗透率。这些被视为变量，和灵敏度分析提供的它们对生产影响的估计。基于类似的沉积物的地质，这是不可能的郁陵盆地积累属于1类（涉及HBL下伏由移动气体区）。如果第4类（分散，低饱和度的积累）存款都参与其中，他们是不可能有生产潜力。最可能的情形包括2级（HBL下伏由流动水的区域）或第3类（仅涉及一个HBL）积累。假设几乎不渗透围界限，该数值研究表明，大的生产速率（几个MMSCFD）是使用常规技术既2类和3类沉积物可以实现的。灵敏度分析表明生产对井设计的依赖，生产速度，HBL的固有渗透率，初始压力，温度和水合物饱和度，以及对水区的厚度（第2类）。该研究还表明，围界的存在是从这些沉积物的商业上可行的生产用气的必不可少的。

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