会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • System and method for performing inversion on LWD resistivity logs with
enhanced resolution
    • 在LWD电阻率测井中进行反演的系统和方法,具有更高的分辨率
    • US5867806A
    • 1999-02-02
    • US734772
    • 1996-10-22
    • Robert W. StricklandGulamabbas A. MerchantCharles E. JacksonHerbert Max Joseph Illfelder
    • Robert W. StricklandGulamabbas A. MerchantCharles E. JacksonHerbert Max Joseph Illfelder
    • G01V3/38G06F19/00
    • G01V3/38
    • A system and method for performing inversion and for correcting for shoulder bed effect. The method enhances the resolution of wave propagation resistivity logs and corrects the logs for adjacent bed effects, whereby the resulting logs have a vertical response as good as wireline high-resolution induction logs. The method first performs logging while drilling on a formation to obtain LWD resistivity log data. The method then selects one or more control depths at one or more locations of each of a plurality of detected beds in the formation. The present invention includes a novel method for selecting bed boundaries from the log data, and the control depths are then determined based on the determined bed boundaries. The method then estimates the resistivity of each bed only at the selected control depths to produce an estimated resistivity of the beds. The method then computes a simulated log value at each control depth using a current estimate of the resistivity of the beds. The computed simulated log, is then compared to the actual log data at each control depth, and the resistivity of each bed is adjusted using the difference between the actual and simulated values at the control depths. The above method iteratively repeats a plurality of times until the simulated log substantially matches the actual log at the control depths.
    • 一种用于执行反转和校正肩部床效应的系统和方法。 该方法提高了波传播电阻率测井的分辨率,并校正了相邻床效应的原木,从而得到的原木垂直响应与有线高分辨率感应测井一样好。 该方法首先在地层上钻井时进行测井以获得LWD电阻率测井数据。 然后,该方法在地层中的多个检测到的床中的每一个的一个或多个位置处选择一个或多个控制深度。 本发明包括从日志数据中选择床边界的新方法,然后基于确定的床边界来确定控制深度。 然后,该方法仅在所选择的控制深度处估计每个床的电阻率,以产生床的估计电阻率。 然后,该方法使用当前对床的电阻率的估计来计算每个控制深度处的模拟对数值。 然后将计算的模拟日志与每个控制深度的实际日志数据进行比较,并使用控制深度的实际值和模拟值之间的差值来调整每个床的电阻率。 上述方法迭代重复多次,直到模拟日志与控制深度的实际日志基本匹配。
    • 4. 发明授权
    • Safety bracket for securing ladder in place
    • 安全支架用于将梯子固定到位
    • US4164269A
    • 1979-08-14
    • US953962
    • 1978-10-23
    • Charles E. Jackson
    • Charles E. Jackson
    • E06C7/48
    • E06C7/48
    • A safety bracket for securing a ladder in place against a building structure, the bracket having two extending arm members interconnected in crossing relation intermediate the respective ends thereof with each arm member being slidable with respect to the other. Each arm member includes an intermediate portion and two end portions pivotally joined to the intermediate portion, the two end portions of each arm member including, respectively, a hook shaped portion which may be hooked around an upright member of a ladder and an eyelet for receiving therethrough a projecting member secured to the building structure.
    • 一种用于将梯子固定在建筑结构上的安全支架,所述支架具有两个延伸的臂构件,所述两个延伸的臂构件在其相应端部之间的交叉关系中互相连接,每个臂构件可相对于另一个滑动。 每个臂构件包括中间部分和两个枢转地连接到中间部分的端部,每个臂构件的两个端部分别包括钩状部分,该钩状部分可以钩在梯子的直立构件和孔眼上,用于接收 通过其固定到建筑结构的突出构件。