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    • 5. 发明申请
    • Entertainment machines
    • 娱乐机
    • US20050261048A1
    • 2005-11-24
    • US11122279
    • 2005-05-04
    • Mike Evans
    • Mike Evans
    • A63F5/00A63F9/24G07F17/32
    • G07F17/3262G07F17/3211G07F17/3286G07F17/34
    • A player-operable coin-operated entertainment machine for playing a roulette-type game with enhanced award opportunities has a symbol selector with a range of different symbols. The symbol selector has multiple selector elements for selecting multiple symbols. A betting means is provided for placing a number of stakes on one or more symbols during a game, by selecting a number of selector elements. Each selector element moves over the symbols, each one eventually coming to rest over a selected symbol. In the case of a selected symbol being one on which a stake has been placed, an award is made available to the player. Therefore, the stake value for each symbol can remain the same, whilst the stake value per game and the award for a win with one or more selector elements, is increased.
    • 用于播放具有增强奖励机会的轮盘赌式游戏的玩家可操作的投币式娱乐机具有具有不同符号范围的符号选择器。 符号选择器具有用于选择多个符号的多个选择器元件。 提供了一种投注装置,用于通过选择多个选择器元件在游戏过程中将一些或多个符号放置在一个或多个符号上。 每个选择器元素在符号上移动,每个选择器元素最终将在所选择的符号上休息。 在所选择的符号是其上已经放置了股票的符号的情况下,向玩家提供奖励。 因此,每个符号的股票价值可以保持不变,而每场比赛的股票价值和一个或多个选择器元素的胜利的奖励增加。
    • 7. 发明授权
    • Thermal neutron porosity from neutron slowing-down length, formation thermal neutron capture cross section, and bulk density
    • 来自中子减速长度的热中子孔隙度,形成热中子捕获截面积和体积密度
    • US07667192B2
    • 2010-02-23
    • US11839608
    • 2007-08-16
    • Scott H. FrickeRobert A. AdolphMike Evans
    • Scott H. FrickeRobert A. AdolphMike Evans
    • G01V5/10
    • G01V5/107
    • A method for determining at least one formation property calculated from neutron measurements acquired with a downhole tool includes emitting neutrons from a source in the tool into the formation, detecting neutrons with at least one detector in the downhole tool, calculating a first slowing-down length (L1) based on the detected neutrons, and deriving a second slowing-down length (L2) based on the first slowing-down length (L1). Further steps include deriving a correlation function for relating slowing-down lengths from a first tool to slowing-down lengths associated with a different source, wherein the correlation function depends on formation properties such as bulk density; and applying the correlation function to the slowing-down length of the first tool to derive the slowing-down length of the second tool. A method for determining a thermal neutron formation porosity based on a slowing-down length from epithermal neutron measurements from an electronic neutron source includes converting the slowing-down length into a computed neutron slowing-down length from thermal neutron measurements from a chemical neutron source, wherein the converting uses a correlation function that depends on formation bulk density; deriving a thermal neutron countrate ratio based on the computed neutron slowing-down length, wherein the deriving uses a function that depends on the formation bulk density and formation sigma; and computing the thermal neutron formation porosity from the thermal neutron countrate ratio.
    • 用于确定由井下工具获取的中子测量计算的至少一个地层特性的方法包括从工具中的源将地层中子发射到地层中,用井下工具中的至少一个检测器检测中子,计算第一减速长度 (L1),并且基于第一减速长度(L1)导出第二减速长度(L2)。 进一步的步骤包括导出相关函数,用于将来自第一工具的减速长度与与不同源相关联的减速长度相关联,其中所述相关函数取决于地层特性,例如体积密度; 以及将所述相关函数应用于所述第一工具的减速长度以导出所述第二工具的减速长度。 基于来自电子中子源的超热中子测量的基于减速长度确定热中子形成孔隙的方法包括将来自化学中子源的热中子测量的减速长度转换成计算的中子减速长度, 其中所述转换使用取决于地层堆积密度的相关函数; 基于计算的中子减速长度导出热中子剂量比,其中导出使用取决于地层堆积密度和形成σ的函数; 并从热中子计数比计算热中子形成孔隙度。
    • 10. 发明申请
    • Thermal Neutron Porosity from Neutron Slowing-Down Length, Formation Thermal Neutron Capture Cross Section, and Bulk Density
    • 来自中子的热中子孔隙率下降长度,形成热中子捕获截面积和体积密度
    • US20090045328A1
    • 2009-02-19
    • US11839608
    • 2007-08-16
    • Scott H. FrickeRobert A. AdolphMike Evans
    • Scott H. FrickeRobert A. AdolphMike Evans
    • G01V5/10
    • G01V5/107
    • A method for determining at least one formation property calculated from neutron measurements acquired with a downhole tool includes emitting neutrons from a source in the tool into the formation, detecting neutrons with at least one detector in the downhole tool, calculating a first slowing-down length (L1) based on the detected neutrons, and deriving a second slowing-down length (L2) based on the first slowing-down length (L1). Further steps include deriving a correlation function for relating slowing-down lengths from a first tool to slowing-down lengths associated with a different source, wherein the correlation function depends on formation properties such as bulk density; and applying the correlation function to the slowing-down length of the first tool to derive the slowing-down length of the second tool. A method for determining a thermal neutron formation porosity based on a slowing-down length from epithermal neutron measurements from an electronic neutron source includes converting the slowing-down length into a computed neutron slowing-down length from thermal neutron measurements from a chemical neutron source, wherein the converting uses a correlation function that depends on formation bulk density; deriving a thermal neutron countrate ratio based on the computed neutron slowing-down length, wherein the deriving uses a function that depends on the formation bulk density and formation sigma; and computing the thermal neutron formation porosity from the thermal neutron countrate ratio.
    • 用于确定由井下工具获取的中子测量计算的至少一个地层特性的方法包括从工具中的源将地层中子发射到地层中,用井下工具中的至少一个检测器检测中子,计算第一减速长度 (L1),并且基于第一减速长度(L1)导出第二减速长度(L2)。 进一步的步骤包括导出相关函数,用于将来自第一工具的减速长度与与不同源相关联的减速长度相关联,其中所述相关函数取决于地层特性,例如体积密度; 以及将所述相关函数应用于所述第一工具的减速长度以导出所述第二工具的减速长度。 基于来自电子中子源的超热中子测量的基于减速长度确定热中子形成孔隙的方法包括将来自化学中子源的热中子测量的减速长度转换成计算的中子减速长度, 其中所述转换使用取决于地层堆积密度的相关函数; 基于计算的中子减速长度导出热中子剂量比,其中导出使用取决于地层堆积密度和形成σ的函数; 并从热中子计数比计算热中子形成孔隙度。