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公开(公告)号：US20120199397A1
公开(公告)日：2012-08-09
申请号：US13360376
申请日：2012-01-27
申请人： Stefan Wessling , XiaoWei Wang , Anne Bartetzko , Jianyong Pei
发明人： Stefan Wessling , XiaoWei Wang , Anne Bartetzko , Jianyong Pei
摘要： A method and apparatus for estimating a pressure transition zone in a borehole is disclosed. A parameter indicative of formation fluid pressure at a plurality of borehole depths is measured. A global trend of the parameter is determined over a first depth interval and a local trend of the parameter is determined over a second depth interval. A relation is determined between the global trend and the local trend, and the pressure transition zone is determined from the determined relation between the determined global trend and the determined local trend.
摘要翻译： 公开了一种用于估计钻孔中的压力过渡区域的方法和装置。 测量指示多个井眼深度处的地层流体压力的参数。 在第一深度间隔中确定参数的全局趋势，并且在第二深度间隔上确定参数的局部趋势。 在全球趋势与当地趋势之间确定关系，并根据确定的全球趋势与确定的当地趋势之间的确定关系确定压力过渡带。
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公开(公告)号：US09157316B2
公开(公告)日：2015-10-13
申请号：US13360376
申请日：2012-01-27
申请人： Stefan Wessling , XiaoWei Wang , Anne Bartetzko , Jianyong Pei
发明人： Stefan Wessling , XiaoWei Wang , Anne Bartetzko , Jianyong Pei
摘要： A method and apparatus for estimating a pressure transition zone in a borehole is disclosed. A parameter indicative of formation fluid pressure at a plurality of borehole depths is measured. A global trend of the parameter is determined over a first depth interval and a local trend of the parameter is determined over a second depth interval. A relation is determined between the global trend and the local trend, and the pressure transition zone is determined from the determined relation between the determined global trend and the determined local trend.
摘要翻译： 公开了一种用于估计钻孔中的压力过渡区域的方法和装置。 测量指示多个井眼深度处的地层流体压力的参数。 在第一深度间隔中确定参数的全局趋势，并且在第二深度间隔上确定参数的局部趋势。 在全球趋势与当地趋势之间确定关系，并根据确定的全球趋势与确定的当地趋势之间的确定关系确定压力过渡带。
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公开(公告)号：US10928537B2
公开(公告)日：2021-02-23
申请号：US16919392
申请日：2020-07-02
申请人： Anne Bartetzko , Stefan Wessling
发明人： Anne Bartetzko , Stefan Wessling
IPC分类号： G01V1/50
摘要： An embodiment of a method of predicting a location of one or more features of an earth formation during a downhole operation includes acquiring reference data and identifying one or more reference data sections, each reference data section corresponding to a feature of interest and having an associated depth or depth interval, deploying a drilling assembly and drilling a target borehole in the earth formation, and performing measurements during the operation by a downhole measurement device to generate measurement data. The method also includes performing one or more correlations of the one or more measurement data sections with one or more reference data sections; and predicting at least one of a depth of a subsequent feature of interest located beyond a current carrier depth and a point in time of a future event associated with the subsequent feature of interest based on the correlation.
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公开(公告)号：US11591900B2
公开(公告)日：2023-02-28
申请号：US17370419
申请日：2021-07-08
申请人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
发明人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
摘要： A method for predicting a pressure window for drilling a borehole in a formation includes: obtaining a pore pressure related data value of the formation using a data acquisition tool; predicting pore pressure uncertainty from the pore pressure related data value of the formation using a processor; estimating uncertainty of a pressure window for drilling fluid using the predicted pore pressure uncertainty using a processor; and applying the estimated uncertainty to the pressure window to provide a modified pressure window using a processor.
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公开(公告)号：US20200333495A1
公开(公告)日：2020-10-22
申请号：US16919392
申请日：2020-07-02
申请人： Anne Bartetzko , Stefan Wessling
发明人： Anne Bartetzko , Stefan Wessling
IPC分类号： G01V1/50
摘要： An embodiment of a method of predicting a location of one or more features of an earth formation during a downhole operation includes acquiring reference data and identifying one or more reference data sections, each reference data section corresponding to a feature of interest and having an associated depth or depth interval, deploying a drilling assembly and drilling a target borehole in the earth formation, and performing measurements during the operation by a downhole measurement device to generate measurement data. The method also includes performing one or more correlations of the one or more measurement data sections with one or more reference data sections; and predicting at least one of a depth of a subsequent feature of interest located beyond a current carrier depth and a point in time of a future event associated with the subsequent feature of interest based on the correlation.
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公开(公告)号：US20160341834A1
公开(公告)日：2016-11-24
申请号：US14717162
申请日：2015-05-20
申请人： Anne Bartetzko , Stefan Wessling
发明人： Anne Bartetzko , Stefan Wessling
IPC分类号： G01V1/28
摘要： An embodiment of a method of predicting a location of one or more features of an earth formation during a downhole operation includes acquiring reference data and identifying one or more reference data sections, each reference data section corresponding to a feature of interest and having an associated depth or depth interval, deploying a drilling assembly and drilling a target borehole in the earth formation, and performing measurements during the operation by a downhole measurement device to generate measurement data. The method also includes performing one or more correlations of the one or more measurement data sections with one or more reference data sections; and predicting at least one of a depth of a subsequent feature of interest located beyond a current carrier depth and a point in time of a future event associated with the subsequent feature of interest based on the correlation.
摘要翻译： 在井下操作期间预测地球地层的一个或多个特征的位置的方法的实施例包括获取参考数据并识别一个或多个参考数据段，每个参考数据段对应于感兴趣的特征并且具有相关联的深度 或深度间隔，部署钻井组件并在地层中钻目标钻孔，以及在井下测量装置的操作期间进行测量以产生测量数据。 该方法还包括执行一个或多个测量数据部分与一个或多个参考数据部分的一个或多个相关性; 以及基于所述相关性，预测感兴趣的后续特征的深度中的至少一个位于超过当前载波深度和与随后的感兴趣特征相关联的未来事件的时间点。
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公开(公告)号：US20130066558A1
公开(公告)日：2013-03-14
申请号：US13229212
申请日：2011-09-09
申请人： Stefan Wessling , Jianyong Pei
发明人： Stefan Wessling , Jianyong Pei
摘要： Disclosed is a method for estimating a pore pressure of an earth formation penetrated by a borehole and an associated uncertainty. The method includes: conveying a carrier through the borehole; performing formation measurements relating to porosity at a plurality of depths in the borehole using a downhole tool coupled to the carrier; defining a first depth interval and a second depth interval deeper than the first depth interval, the first depth interval comprising a first set of formation measurement points and the second depth interval comprising a second set of formation measurement points; establishing a plurality of trendlines of depth versus porosity-related measurements using a processor with each trendline in the plurality of trendlines extending from a point in the first depth interval through a point in the second depth interval; and calculating a pore pressure line and associated uncertainty using the plurality of trendlines.
摘要翻译： 公开了一种用于估计钻孔穿透的地层孔隙压力和相关不确定性的方法。 该方法包括：通过钻孔传送载体; 使用联接到所述载体的井下工具执行与井眼中的多个深度处的孔隙度有关的地层测量; 定义比第一深度间隔更深的第一深度间隔和第二深度间隔，所述第一深度间隔包括第一组地层测量点，所述第二深度间隔包括第二组地层测量点; 使用处理器建立多个深度与孔隙度相关测量的趋势线，所述处理器具有从所述第一深度间隔中的点延伸到所述第二深度间隔中的点的所述多个趋势线中的每个趋势线; 以及使用所述多个趋势线计算孔隙压力线和相关联的不确定性。
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公开(公告)号：US20210332694A1
公开(公告)日：2021-10-28
申请号：US17370419
申请日：2021-07-08
申请人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
发明人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
摘要： A method for predicting a pressure window for drilling a borehole in a formation includes: obtaining a pore pressure related data value of the formation using a data acquisition tool; predicting pore pressure uncertainty from the pore pressure related data value of the formation using a processor; estimating uncertainty of a pressure window for drilling fluid using the predicted pore pressure uncertainty using a processor; and applying the estimated uncertainty to the pressure window to provide a modified pressure window using a processor.
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公开(公告)号：US10732312B2
公开(公告)日：2020-08-04
申请号：US14717162
申请日：2015-05-20
申请人： Anne Bartetzko , Stefan Wessling
发明人： Anne Bartetzko , Stefan Wessling
IPC分类号： G01V1/50
摘要： An embodiment of a method of predicting a location of one or more features of an earth formation during a downhole operation includes acquiring reference data and identifying one or more reference data sections, each reference data section corresponding to a feature of interest and having an associated depth or depth interval, deploying a drilling assembly and drilling a target borehole in the earth formation, and performing measurements during the operation by a downhole measurement device to generate measurement data. The method also includes performing one or more correlations of the one or more measurement data sections with one or more reference data sections; and predicting at least one of a depth of a subsequent feature of interest located beyond a current carrier depth and a point in time of a future event associated with the subsequent feature of interest based on the correlation.
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10.发明申请METHOD TO PREDICT OVERPRESSURE UNCERTAINTY FROM NORMAL COMPACTION TRENDLINE UNCERTAINTY 审中-公开预测正常压力不稳定的超压不确定度的方法公开(公告)号：US20140076632A1
公开(公告)日：2014-03-20
申请号：US14031877
申请日：2013-09-19
申请人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
发明人： Stefan Wessling , Anne Bartetzko , Philipp Tesch
IPC分类号： E21B47/06
摘要： A method for predicting a pressure window for drilling a borehole in a formation includes: obtaining a pore pressure related data value of the formation using a data acquisition tool; predicting pore pressure uncertainty from the pore pressure related data value of the formation using a processor; estimating uncertainty of a pressure window for drilling fluid using the predicted pore pressure uncertainty using a processor; and applying the estimated uncertainty to the pressure window to provide a modified pressure window using a processor.
摘要翻译： 一种用于预测用于在地层中钻孔的压力窗口的方法包括：使用数据采集工具获得地层的孔隙压力相关数据值; 使用处理器从孔隙压力相关数据值预测孔隙压力不确定度; 使用处理器使用预测的孔隙压力不确定性来估计钻井液压力窗的不确定性; 以及将估计的不确定性应用于压力窗口，以使用处理器提供修改的压力窗口。
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