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    • 9. 发明申请
    • PULSE NEUTRON FORMATION GAS IDENTIFICATION WITH LWD MEASUREMENTS
    • 脉冲中子形成气体识别与LWD测量
    • US20130234012A1
    • 2013-09-12
    • US13698615
    • 2011-05-19
    • Charles W. MorrisJeffrey GrantAron Kramer
    • Charles W. MorrisJeffrey GrantAron Kramer
    • G01V5/10
    • G01V5/101
    • Systems, methods, and devices for quantatively identifying gas zones irrespective of porosity or lithology using nuclear downhole tools are provided. In particular, because some formation materials such as shales can confound some conventional measurements, a gas detection measurement may be obtained that can be used to qualitatively identify gas zones. The as detection measurement may be based at least partly on a relationship between inelastic gamma rays, neutron capture gamma rays, and experimental or modeled formation data, such that the gas detection measurement qualitatively indicates a gas zone when a gas zone is present in a formation irrespective of a lithology or a porosity of the formation.
    • 提供了使用核井下工具定量识别气体区域而不考虑孔隙度或岩性的系统,方法和装置。 特别地,由于诸如页岩的一些形成材料可能会混淆一些常规的测量,因此可以获得可用于定性识别气体区域的气体检测测量。 作为检测测量可以至少部分地基于非弹性γ射线,中子俘获伽马射线以及实验或模拟形成数据之间的关系,使得当气体区域存在于地层中时,气体检测测量定性地表示气体区域 而不考虑岩层的岩性或孔隙度。