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公开(公告)号：US20190338636A1
公开(公告)日：2019-11-07
申请号：US16513408
申请日：2019-07-16
IPC分类号： E21B49/00
摘要： A method and apparatus for predicting a formation parameter at a drill bit drilling a formation is disclosed. A vibration measurement is obtained at each of a plurality of depths in the borehole. A formation parameter is obtained proximate each of the plurality of depths in the borehole. A relationship is determined between the obtained vibration measurements and the measured formation parameters at the plurality of depths. A vibration measurement at a new drill bit location is obtained and the formation parameter at the new drill bit location is predicted from the vibration measurement and the determined relation. Formation type can be determined at the new drill bit location from the new vibration measurement and the determined relationship.
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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：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：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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5.发明申请SYSTEM AND METHOD FOR CHARACTERIZATION OF DOWNHOLE MEASUREMENT DATA FOR BOREHOLE STABILITY PREDICTION 有权用于表征井间稳定性预测的井下测量数据的系统和方法公开(公告)号：US20140214325A1
公开(公告)日：2014-07-31
申请号：US13755973
申请日：2013-01-31
申请人： Stefan Wessling , Jianyong Pei , Roland May , Andreas Hartmann , Thomas Dahl
发明人： Stefan Wessling , Jianyong Pei , Roland May , Andreas Hartmann , Thomas Dahl
IPC分类号： E21B47/06
CPC分类号： E21B47/06
摘要： A method for estimating a time at which a pressure window relevant observation occurred relating to an event that occurred in an open borehole penetrating an earth formation includes: receiving with a processor a pressure window relevant observation that provides input to adjusting a pressure window for drilling fluid for drilling the borehole; and estimating with the processor a time window in which a physical parameter, a chemical parameter, or a process that caused the pressure window relevant observation to occur, the time window having a start time and an end time.
摘要翻译： 一种用于估计与在穿透地层的开放井眼中发生的事件相关的压力窗口相关观测的时间的方法包括：用处理器接收压力窗口相关观测值，该压力窗口相关观测值为调节钻井液体的压力窗口提供输入 用于钻孔; 并且利用处理器估计出具有发生压力窗口相关观察的物理参数，化学参数或处理的时间窗口，该时间窗口具有开始时间和结束时间。
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6.发明授权公开(公告)号：US08788208B2
公开(公告)日：2014-07-22
申请号：US13229212
申请日：2011-09-09
申请人： Stefan Wessling , Jianyong Pei
发明人： Stefan Wessling , Jianyong Pei
IPC分类号： G01V1/40
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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7.发明授权Precise borehole geometry and BHA lateral motion based on real time caliper measurements 有权基于实时卡尺测量精确的井眼几何和BHA横向运动公开(公告)号：US08788207B2
公开(公告)日：2014-07-22
申请号：US13194179
申请日：2011-07-29
申请人： Jianyong Pei , Thomas Dahl , John Macpherson
发明人： Jianyong Pei , Thomas Dahl , John Macpherson
IPC分类号： E21B47/08
CPC分类号： E21B47/082
摘要： Disclosed is a method for estimating a geometry of a borehole penetrating the earth. The method includes: performing a plurality of borehole caliper measurements with N transducers at a plurality of times, wherein for each time a measurement set comprises measurements made by the N transducers at that time; dividing a cross-section of the borehole into S sectors; obtaining an estimate of the borehole geometry by connecting representative radius points in adjacent sectors; displacing each measurement set according to a displacement vector related to an offset of each measurement set from the estimated geometry if the displacement vector exceeds a selection criterion; iterating the obtaining an estimate of the borehole geometry and the displacing each measurement set based on a latest displacement vector; and providing a latest obtained estimate as the geometry of the borehole when all of the displacement vectors no longer exceed the selection criterion for the displacing.
摘要翻译： 公开了一种用于估计穿透地球的钻孔的几何形状的方法。 该方法包括：在多个时间用N个换能器执行多个井眼卡尺测量，其中每次测量组包括当时的N个换能器所做的测量; 将钻孔的横截面划分为S部分; 通过连接相邻扇区中的代表性半径点来获得井眼几何的估计; 如果所述位移矢量超过选择标准，则根据与所述估计几何的偏移相关的位移矢量移位每个测量集; 迭代获得井眼几何的估计和基于最新位移矢量移位每个测量集合; 并且当所有位移矢量不再超过用于移位的选择标准时，提供最新获得的估计作为钻孔的几何形状。
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公开(公告)号：US11293283B2
公开(公告)日：2022-04-05
申请号：US16513408
申请日：2019-07-16
IPC分类号： E21B49/00
摘要： A method and apparatus for predicting a formation parameter at a drill bit drilling a formation is disclosed. A vibration measurement is obtained at each of a plurality of depths in the borehole. A formation parameter is obtained proximate each of the plurality of depths in the borehole. A relationship is determined between the obtained vibration measurements and the measured formation parameters at the plurality of depths. A vibration measurement at a new drill bit location is obtained and the formation parameter at the new drill bit location is predicted from the vibration measurement and the determined relation. Formation type can be determined at the new drill bit location from the new vibration measurement and the determined relationship.
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公开(公告)号：US10352158B2
公开(公告)日：2019-07-16
申请号：US13408705
申请日：2012-02-29
摘要： A method and apparatus for predicting a formation parameter at a drill bit drilling a formation is disclosed. A vibration measurement is obtained at each of a plurality of depths in the borehole. A formation parameter is obtained proximate each of the plurality of depths in the borehole. A relationship is determined between the obtained vibration measurements and the measured formation parameters at the plurality of depths. A vibration measurement at a new drill bit location is obtained and the formation parameter at the new drill bit location is predicted from the vibration measurement and the determined relation. Formation type can be determined at the new drill bit location from the new vibration measurement and the determined relationship.
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10.发明授权公开(公告)号：US09951607B2
公开(公告)日：2018-04-24
申请号：US13755973
申请日：2013-01-31
申请人： Stefan Wessling , Jianyong Pei , Roland May , Andreas Hartmann , Thomas Dahl
发明人： Stefan Wessling , Jianyong Pei , Roland May , Andreas Hartmann , Thomas Dahl
IPC分类号： E21B47/06
CPC分类号： E21B47/06
摘要： A method for estimating a time at which a pressure window relevant observation occurred relating to an event that occurred in an open borehole penetrating an earth formation includes: receiving with a processor a pressure window relevant observation that provides input to adjusting a pressure window for drilling fluid for drilling the borehole; and estimating with the processor a time window in which a physical parameter, a chemical parameter, or a process that caused the pressure window relevant observation to occur, the time window having a start time and an end time.
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