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公开(公告)号：US20150134258A1
公开(公告)日：2015-05-14
申请号：US14538645
申请日：2014-11-11
CPC分类号： E21B47/06 , E21B44/00 , E21B49/003
摘要： A method for identifying and predicting well pressure control events includes pumping fluid into a wellbore and collecting fluid returning from the wellbore. A first parameter related to a rate of flow of fluid pumped into the wellbore is measured. A second parameter related to a rate of flow of fluid out of the wellbore is measured. The first and second parameters and selected properties of the fluid are used to calculate an equivalent density of the fluid during pumping (ECD) and when pumping is stopped (ESD). An alarm when at least one of the following occurs: ECD is at least equal to a fracture pressure of at least one formation in the wellbore, ESD is at most equal to a fluid pore pressure of at least one formation in the wellbore, and ESD is at most equal to a collapse pressure of the wellbore.
摘要翻译： 用于识别和预测井压控制事件的方法包括将流体泵送到井筒中并收集从井筒返回的流体。 测量与泵送到井眼中的流体的流速相关的第一参数。 测量与液体流出井眼的流速相关的第二参数。 流体的第一和第二参数和选定的特性用于计算泵送期间（ECD）和泵送停止（ESD）时流体的等效密度。 当发生以下情况中的至少一个时，报警：ECD至少等于井筒中至少一个地层的断裂压力，ESD至多等于井筒中至少一个地层的流体孔隙压力，而ESD 最多等于井眼的坍塌压力。
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公开(公告)号：US10900288B2
公开(公告)日：2021-01-26
申请号：US15579337
申请日：2016-06-03
发明人： Yuelin Shen , Sujian Huang , Cesar Pena , Oney Erge
摘要： Systems, methods, and computer-readable media for drilling. The method includes receiving a drilling model of a drilling system including a drill string, selecting a frequency and amplitude for axial vibration of the drill string based on the drilling model, and generating the axial vibration substantially at the frequency and the amplitude selected by modulating a hookload or axial movement at a surface of the drill string.
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公开(公告)号：US10648296B2
公开(公告)日：2020-05-12
申请号：US15518612
申请日：2015-10-14
摘要： A casing deployment apparatus includes a processing resource with a signal pattern recognition engine unit (420), a tubular measurement unit (404) and a decision unit (416). A first sensor input (402) and a second sensor input (406) are attached to the pattern recognition unit (420) and receive first sensor data and second sensor data corresponding to first and second time-varying sensor signals. The pattern recognition unit (420) analyzes a characteristic of the first sensor data to determine whether the characteristic is substantially consistent with a first expected characteristic of the first sensor data associated with deployment of casing in a borehole. The tubular measurement unit (404) analyzes a characteristic of the second sensor data in order to determine whether the characteristic is substantially consistent with a second expected characteristic of the second sensor data associated with the deployment of the casing.
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公开(公告)号：US10519764B2
公开(公告)日：2019-12-31
申请号：US15506769
申请日：2015-07-30
摘要： A method for moving fluid through a pipe in a wellbore includes placing at least two different fluids in the pipe and in an annular space between the pipe and the wellbore. Fluid is pumped into the pipe at a rate to achieve a desired set of conditions. Using a predetermined volume distribution of the annular space, an axial position of each of the at least two fluids in the annular space during the pumping the displacement fluid is calculated.
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公开(公告)号：US10400570B2
公开(公告)日：2019-09-03
申请号：US14538672
申请日：2014-11-11
摘要： A method for monitoring condition of a wellbore includes initializing a value of at least one parameter having a relationship to likelihood of a drill string becoming stuck in a wellbore (the HCF). During drilling operations, at least one drilling parameter having a determinable relationship to the HCF is measured. In a computer, the value of the HCF is recalculated based on the at least one measured parameter. The initial value of the HCF and the recalculated values of the HCF are displayed to a user.
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公开(公告)号：US20170241256A1
公开(公告)日：2017-08-24
申请号：US15506769
申请日：2015-07-30
摘要： A method for moving fluid through a pipe in a wellbore includes placing at least two different fluids in the pipe and in an annular space between the pipe and the wellbore. Fluid is pumped into the pipe at a rate to achieve a desired set of conditions. Using a predetermined volume distribution of the annular space, an axial position of each of the at least two fluids in the annular space during the pumping the displacement fluid is calculated.
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公开(公告)号：US20150134257A1
公开(公告)日：2015-05-14
申请号：US14538672
申请日：2014-11-11
CPC分类号： E21B44/00 , E21B47/00 , E21B49/003
摘要： A method for monitoring condition of a wellbore includes initializing a value of at least one parameter having a relationship to likelihood of a drill string becoming stuck in a wellbore (the HCF). During drilling operations, at least one drilling parameter having a determinable relationship to the HCF is measured. In a computer, the value of the HCF is recalculated based on the at least one measured parameter. The initial value of the HCF and the recalculated values of the HCF are displayed to a user.
摘要翻译： 用于监测井眼状况的方法包括初始化至少一个参数的值，所述至少一个参数与钻柱卡在井眼（HCF）中的可能性有关。 在钻井操作期间，测量与HCF具有可确定关系的至少一个钻孔参数。 在计算机中，基于至少一个测量参数重新计算HCF的值。 HCF的初始值和HCF的重新计算值显示给用户。
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公开(公告)号：US11994017B2
公开(公告)日：2024-05-28
申请号：US17814246
申请日：2022-07-22
IPC分类号： E21B47/005 , E21B33/13 , E21B33/14 , E21B47/047 , E21B47/06 , E21B33/12
CPC分类号： E21B47/005 , E21B33/13 , E21B33/14 , E21B47/047 , E21B47/06 , E21B33/12
摘要： A method for moving fluid through a pipe in a wellbore includes placing at least two different fluids in the pipe and in an annular space between the pipe and the wellbore. Fluid is pumped into the pipe at a rate to achieve a desired set of conditions. Using a predetermined volume distribution of the annular space, an axial position of each of the at least two fluids in the annular space during the pumping the displacement fluid is calculated.
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公开(公告)号：US10920584B2
公开(公告)日：2021-02-16
申请号：US15765476
申请日：2016-09-30
发明人： Oney Erge , Ines De Mata Cecilio , Richard Dearden , Jonathan Dunlop , Walter David Aldred , Ashley Bernard Johnson , Iead Rezek , Benjamin Peter Jeffryes
IPC分类号： E21B21/08 , E21B47/10 , E21B47/117 , E21B47/06 , G06N7/00
摘要： A method for detecting an influx and/or loss of circulation in a wellbore, comprising measuring a condition in the wellbore using a downhole sensor; determining that a positive displacement pump is shut off or turned on; predicting pit volume and/or gas concentration at a plurality of time points after the positive displacement pump is shut off or turned on using the measured condition in the wellbore prior to the positive displacement pump is shut off or turned on, wherein the measured condition correlates with the pit volume and/or gas concentration; measuring pit volume and/or gas concentration at the plurality of time points; comparing the predicted and the measured pit volumes and/or gas concentrations at the plurality of time points; and producing a warning signal if the difference between the predicted and the measured pit volumes and/or gas concentrations is greater than a pre determined value.
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公开(公告)号：US20180355669A1
公开(公告)日：2018-12-13
申请号：US15579337
申请日：2016-06-03
发明人： Yuelin Shen , Sujian Huang , Cesar Pena , Oney Erge
摘要： Systems, methods, and computer-readable media for drilling. The method includes receiving a drilling model of a drilling system including a drill string, selecting a frequency and amplitude for axial vibration of the drill string based on the drilling model, and generating the axial vibration substantially at the frequency and the amplitude selected by modulating a hookload or axial movement at a surface of the drill string.
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