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
    • WO2016069586A1
    • 2016-05-06
    • PCT/US2015/057562
    • 2015-10-27
    • BAKER HUGHES INCORPORATED
    • HOHL, AndreasHOEHN, OliverKUECK, Armin
    • E21B44/00G06F9/455G06G7/48
    • 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。
    • 4. 发明申请
    • ALTERNATING FREQUENCY TIME DOMAIN APPROACH TO CALCULATE THE FORCED RESPONSE OF DRILL STRINGS
    • 替代频率时域方法计算钻杆强度的响应
    • WO2014130654A1
    • 2014-08-28
    • PCT/US2014/017361
    • 2014-02-20
    • BAKER HUGHES INCORPORATED
    • HOHL, AndreasSCHUBERTH, FrankRECKMANN, Hanno
    • E21B44/02E21B47/12
    • E21B17/00
    • Method for estimating a steady state response of a drill string in a borehole includes calculating a first displacement of the drill string in a frequency domain for a first excitation force frequency and a number of multiples of this frequency using an equation of motion of the drill string. The equation of motion has a static force component, an excitation force component, and a non-linear force component with respect to at least one of deflection and a derivative of deflection of the drill string. The method further includes: transforming the first displacement from the frequency domain into a time domain; calculating a non-linear force in the time domain; calculating a frequency domain coefficient derived from the calculated nonlinear force in the time domain; and calculating a second displacement of the drill string in the frequency domain using the equation of motion and the frequency domain coefficient.
    • 用于估计钻柱在井眼中的稳态响应的方法包括使用钻柱的运动方程来计算钻柱在第一激励频率和频率的倍数的频域中的第一位移 。 相对于钻柱的偏转和偏转的导数中的至少一个,运动方程具有静力分量,激励力分量和非线性力分量。 该方法还包括:将第一位移从频域变换为时域; 计算时域中的非线性力; 计算从时域中计算的非线性力导出的频域系数; 以及使用运动方程和频域系数计算所述钻柱在频域中的第二位移。
    • 6. 发明申请
    • DOWNHOLE OPERATIONAL MODAL ANALYSIS
    • 井下作业模态分析
    • WO2017173070A2
    • 2017-10-05
    • PCT/US2017/024993
    • 2017-03-30
    • BAKER HUGHES INCORPORATED
    • HOHL, AndreasICHAOUI, MohamedRECKMANN, Hanno
    • E21B44/00E21B41/00E21B21/08
    • A method for selecting drilling parameters for drilling a borehole penetrating the earth with a drill string. The method includes: measuring vibration-related amplitudes of the drill string during operation using one or more vibrations sensor to provide amplitude measurements; determining with a downhole processor one or more modal properties comprising one or more eigenfrequencies of the drill string using the amplitude measurements, the determination being made by including any excitation force in a white noise term of a model of the drillstring; and selecting drilling parameters that apply an excitation force at a frequency that avoids a selected range of frequencies that bound the one or more eigenfrequencies using the processor.
    • 用于选择钻探参数的方法,该钻探参数用钻柱钻出穿透地球的钻孔。 该方法包括:在操作期间使用一个或多个振动传感器来测量钻柱的振动相关振幅以提供振幅测量结果; 利用所述幅度测量结果与井下处理器一起确定包括所述钻柱的一个或多个特征频率的一个或多个模态特性,所述确定通过在所述钻柱的模型的白噪声项中包括任何激励力来进行; 以及选择以避免使用处理器限制一个或多个特征频率的选定频率范围的频率施加激励力的钻孔参数。