• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Integration of borehole and seismic data to unravel complex stratigraphy: Case studies from the Mannville Group, Western Canada.
【24h】

Integration of borehole and seismic data to unravel complex stratigraphy: Case studies from the Mannville Group, Western Canada.

机译：整合井眼和地震数据以揭示复杂的地层：来自加拿大西部曼维尔小组的案例研究。

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

Understanding the stratigraphic architecture of geologically complex reservoirs, such as the heavy oil deposits of Western Canada, is essential to achieve an efficient hydrocarbon recovery. Borehole and 3-D seismic data were integrated to define the stratigraphic architecture and generate 3-dimensional geological models of the Mannville Group in Saskatchewan. The Mannville is a stratigraphically complex unit formed of fluvial to marine deposits. Two areas in west-central and southern Saskatchewan were examined in this study. In west-central Saskatchewan, the area corresponds to a stratigraphically controlled heavy oil reservoir with production from the undifferentiated Dina-Cummings Members of the Lower Cretaceous Mannville Group. The southern area, although non-prospective for hydrocarbons, shares many similarities with time-equivalent strata in areas of heavy oil production. Seismic sequence stratigraphic principles together with log signatures permitted the subdivision of the Mannville into different packages. An initial geological model was generated integrating seismic and well-log data Multiattribute analysis and neural networks were used to generate a pseudo-lithology or gamma-ray volume. The incorporation of borehole core data to the model and the subsequent integration with the lithological prediction were crucial to capture the distribution of reservoir and non-reservoir deposits in the study area. The ability to visualize the 3-D seismic data in a variety of ways, including arbitrary lines and stratal or horizon slicing techniques helped the definition of stratigraphic features such as channels and scroll bars that affect fluid flow in hydrocarbon producing areas. Small-scale heterogeneities in the reservoir were not resolved due to the resolution of the seismic data. Although not undertaken in this study, the resulting stratigraphic framework could be used to help construct a static reservoir model. Because of the small size of the 3-D seismic surveys, horizontal slices through the data volume generally imaged only small portions of the paleogeomorphologic features thought to be present in this area. As such, it was only through the integration of datasets that the geological models were established.
机译：了解地质复杂的储层（例如加拿大西部的重油矿床）的地层结构，对于实现有效的油气开采至关重要。钻孔和3-D地震数据被整合以定义地层构造并生成萨斯喀彻温省Mannville组的3维地质模型。曼维尔（Mannville）是由河床到海床组成的地层复杂单元。在这项研究中，考察了中西部和萨斯喀彻温省南部的两个地区。在萨斯喀彻温省中西部，该区域对应于地层控制的稠油油藏，其产自下白垩统曼维尔群的未分化狄纳-卡明斯成员。南部地区虽然未预见到碳氢化合物，但在重油生产地区与时间等效层具有许多相似之处。地震层序地层学原理与测井特征一起允许将曼维尔划分为不同的包裹。结合地震和测井数据生成了初始地质模型。使用多属性分析和神经网络生成了伪岩性或伽马射线体积。将钻孔岩心数据整合到模型中，并随后与岩性预测相集成，对于捕获研究区内储层和非储层沉积物的分布至关重要。以各种方式可视化3-D地震数据的能力，包括任意线和地层或水平切片技术，有助于定义地层特征，例如影响油气生产区流体流动的通道和滚动条。由于地震数据的分辨率，储层中的小规模非均质性没有得到解决。尽管未在本研究中进行，但最终的地层框架可用于帮助构建静态储层模型。由于3-D地震勘探的规模很小，因此通过数据量的水平切片通常仅成像了该地区可能存在的古地貌特征的一小部分。因此，只有通过数据集的整合才能建立地质模型。

著录项

  • 作者

    Sarzalejo Silva, Sabrina Ester.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Geology.;Sedimentary Geology.;Geophysics.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 242 p.
  • 总页数 242
  • 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