公开(公告)号：US20210270120A1

公开(公告)日：2021-09-02

申请号：US17186689

申请日：2021-02-26

申请人： Andreas Hohl ,  Vincent Kulke

发明人： Andreas Hohl ,  Vincent Kulke

IPC分类号： E21B44/04 ,  E21B49/00

摘要： A method of estimating a stability value of a rotating downhole component includes rotating the downhole component at a varying first rotary speed, the varying first speed having a plurality of first rotary speed values, and identifying an oscillation of the downhole component. The method also includes acquiring measurement data from a sensor, the measurement data indicative of a measured parameter related to the oscillation of the downhole component at the plurality of first rotary speed values, and estimating the stability value of the rotating downhole component as a function of an operational parameter based on the acquired measurement data.

公开(公告)号：US20190368342A1

公开(公告)日：2019-12-05

申请号：US16417856

申请日：2019-05-21

申请人： Andreas Hohl ,  Wojciech Emmerich

发明人： Andreas Hohl ,  Wojciech Emmerich

IPC分类号： E21B47/18 ,  H04B13/02 ,  H04B11/00

摘要： Communication methods and systems for communicating from a surface location to a downhole component in a borehole in an earth formation are described. The methods and systems include modulating, by a first device at the surface location, a fluid flow through a mud motor according to a predetermined pattern, the mud motor disposed in the borehole, the modulated fluid flow generating a mechanical movement variation pattern of at least a part of the mud motor, detecting, by a second device in the downhole component, the mechanical movement variation pattern, and demodulating the mechanical movement variation pattern to receive a signal that is related to the predetermined pattern.

公开(公告)号：US10364663B2

公开(公告)日：2019-07-30

申请号：US15088391

申请日：2016-04-01

申请人： Andreas Hohl ,  Mohamed Ichaoui ,  Hanno Reckmann

发明人： Andreas Hohl ,  Mohamed Ichaoui ,  Hanno Reckmann

IPC分类号： E21B44/02 ,  E21B44/00 ,  E21B47/00

摘要： 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.

公开(公告)号：US20180313155A1

公开(公告)日：2018-11-01

申请号：US16026670

申请日：2018-07-03

申请人： Christian Herbig ,  Hanno Reckmann ,  Wojciech Emmerich ,  Oliver Hoehn ,  Christian Linke ,  Jens-Uwe Bruns ,  Andreas Hohl ,  Hatem Oueslati ,  Ingo Forstner

发明人： Christian Herbig ,  Hanno Reckmann ,  Wojciech Emmerich ,  Oliver Hoehn ,  Christian Linke ,  Jens-Uwe Bruns ,  Andreas Hohl ,  Hatem Oueslati ,  Ingo Forstner

IPC分类号： E21B7/00 ,  E21B47/02 ,  E21B3/00 ,  E21B44/00

CPC分类号： E21B7/00 ,  E21B3/00 ,  E21B44/00 ,  E21B47/02

摘要： An embodiment of a method of detecting and correcting for spiraling in a downhole carrier includes: deploying the carrier in a borehole in an earth formation as part of a subterranean operation; acquiring time based data from at least one sensor disposed at the carrier; acquiring time and depth data, the time and depth data correlating time values with depths of the carrier; generating a depth based profile based on the time based data and the time and depth data; generating a frequency profile by transforming the depth based profile into the frequency domain; detecting a spiraling event based on an amplitude of the frequency profile; and taking corrective action based on detecting the spiraling event.

公开(公告)号：US20170284185A1

公开(公告)日：2017-10-05

申请号：US15088391

申请日：2016-04-01

申请人： Andreas Hohl ,  Mohamed Ichaoui ,  Hanno Reckmann

发明人： Andreas Hohl ,  Mohamed Ichaoui ,  Hanno Reckmann

IPC分类号： E21B44/00 ,  E21B47/00

CPC分类号： E21B44/005 ,  E21B47/00

摘要： 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.

公开(公告)号：US09435187B2

公开(公告)日：2016-09-06

申请号：US14032951

申请日：2013-09-20

申请人： Andreas Hohl ,  Bernhard Meyer-Heye ,  Hanno Reckmann

发明人： Andreas Hohl ,  Bernhard Meyer-Heye ,  Hanno Reckmann

IPC分类号： G06G7/48 ,  E21B44/00 ,  E21B47/00 ,  E21B41/00

CPC分类号： E21B44/00 ,  E21B41/00 ,  E21B47/00

摘要： A method for estimating drilling parameters for drilling a borehole in the earth includes: drilling the borehole with a drill string having a mud motor and a drill bit; constructing a mathematical model of a system including the drill string, the mud motor, and a borehole geometry; calculating a mud motor lateral excitation force imposed on the drill string by the mud motor for one or more combinations of drill string rotational speed and mud motor rotational speed; calculating lateral motion of the drill string and a force imposed on the drill string at positions along the drill string for the one or more of combinations using the model and the excitation force; selecting a range of combinations of drill string rotational speed and mud motor rotational speed that result in the force imposed upon the drill string being less than a threshold value; and displaying the range of combinations.

摘要翻译： 用于估计在地球钻孔的钻孔参数的方法包括：用具有泥浆马达和钻头的钻柱钻孔; 构建包括钻柱，泥浆马达和井眼几何的系统的数学模型; 通过泥浆马达计算钻杆转速和泥浆马达旋转速度的一种或多种组合施加在钻柱上的泥浆马达横向激励力; 计算钻柱的横向运动，以及在使用该模型和激励力的一个或多个组合中沿着钻柱的位置施加在钻柱上的力; 选择导致施加在钻柱上的力小于阈值的钻柱转速和泥浆马达旋转速度的组合范围; 并显示组合的范围。

公开(公告)号：US20160117424A1

公开(公告)日：2016-04-28

申请号：US14524070

申请日：2014-10-27

申请人： Andreas Hohl ,  Oliver Hoehn ,  Armin Kueck

发明人： Andreas Hohl ,  Oliver Hoehn ,  Armin Kueck

IPC分类号： G06F17/50 ,  G06F17/18

CPC分类号： E21B44/00 ,  E21B7/00

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09000941B2

公开(公告)日：2015-04-07

申请号：US13771749

申请日：2013-02-20

申请人： Andreas Hohl ,  Frank Schuberth ,  Hanno Reckmann

发明人： Andreas Hohl ,  Frank Schuberth ,  Hanno Reckmann

IPC分类号： G01V3/00 ,  E21B23/00 ,  E21B17/10 ,  E21B17/00

CPC分类号： E21B17/00

摘要： A 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 a deflection and a derivative of the 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 non-linear 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.

摘要翻译： 用于估计钻柱在钻孔中的稳态响应的方法包括使用钻头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 串。 相对于钻柱的偏转的偏转和导数中的至少一个，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频域中的钻柱的第二位移。

公开(公告)号：US20140232548A1

公开(公告)日：2014-08-21

申请号：US13771749

申请日：2013-02-20

申请人： Andreas Hohl ,  Frank Schuberth ,  Hanno Reckmann

发明人： Andreas Hohl ,  Frank Schuberth ,  Hanno Reckmann

IPC分类号： E21B47/16

CPC分类号： E21B17/00

摘要： A 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 a deflection and a derivative of the 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 non-linear 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.

摘要翻译： 用于估计钻柱在钻孔中的稳态响应的方法包括使用钻头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 串。 相对于钻柱的偏转的偏转和导数中的至少一个，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频域中的钻柱的第二位移。

公开(公告)号：US12091921B2

公开(公告)日：2024-09-17

申请号：US17859197

申请日：2022-07-07

申请人： Vincent Kulke ,  Georg-Peter Ostermeyer ,  Andreas Hohl ,  Hanno Reckmann ,  Armin Kueck

发明人： Vincent Kulke ,  Georg-Peter Ostermeyer ,  Andreas Hohl ,  Hanno Reckmann ,  Armin Kueck

IPC分类号： E21B17/07

CPC分类号： E21B17/07

摘要： Systems and methods for damping vibrations of downhole systems are described. The systems include a downhole component configured to be disposed downhole and a shock-damping system at least one of on or in the downhole component, the shock-damping system configured to reduce torsional oscillations of the downhole component by imparting a selected shock to the downhole component. The selected shock is selected to generate damping of the torsional oscillations of the downhole system.