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    • 9. 发明申请
    • STATISTICAL APPROACH TO INCORPORATE UNCERTAINTIES OF PARAMETERS IN SIMULATION RESULTS AND STABILITY ANALYSIS FOR EARTH DRILLING
    • 在模拟结果中加入参数不确定度的统计方法和用于地球钻井的稳定性分析
    • US20160117424A1
    • 2016-04-28
    • US14524070
    • 2014-10-27
    • Andreas HohlOliver HoehnArmin Kueck
    • Andreas HohlOliver HoehnArmin Kueck
    • G06F17/50G06F17/18
    • E21B44/00E21B7/00
    • A method for estimating a probability of a drilling dysfunction or a drilling performance indicator value occurring includes entering drilling-related data having a probability distribution into a mathematical model of a drill string drilling a borehole penetrating the earth and entering drilling parameters into the model for drilling the borehole. The method further includes performing a plurality of drilling simulations using the model, each simulation providing a probability of the drilling dysfunction occurring or a probability of a drilling performance indicator value occurring with associated drilling parameters used in the simulation, selecting a set of drilling parameters that optimizes a drilling objective using the probabilities of the drilling dysfunction occurring or the probabilities of a drilling performance indicator value occurring; and transmitting the selected set of drilling parameters to a signal receiving device.
    • 用于估计钻井功能障碍或钻井性能指标值的概率的方法包括将具有概率分布的钻井相关数据输入钻井钻孔的钻杆数学模型,并将钻孔参数输入到钻井模型中 钻孔。 该方法还包括使用该模型执行多次钻孔模拟,每个模拟提供发生钻井功能障碍的概率或者在模拟中使用的相关钻井参数发生钻井性能指标值的概率,选择一组钻井参数, 使用发生的钻井功能障碍的概率或钻井性能指标值的概率来优化钻井目标; 以及将所选择的一组钻孔参数传送到信号接收装置。