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。

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

CPC分类号： E21B49/00 ,  G01V1/40 ,  G01V9/00 ,  G01V11/00

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。

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.

公开(公告)号：US08965701B2

公开(公告)日：2015-02-24

申请号：US13191016

申请日：2011-07-26

申请人： Stefan Wessling ,  Jianyong Pei

发明人： Stefan Wessling ,  Jianyong Pei

IPC分类号： G01V1/50 ,  G01V5/04 ,  E21B47/00

CPC分类号： G01V5/04 ,  E21B47/0002

摘要： Disclosed is a method for detecting a pair of opposing breakouts in a borehole penetrating an earth formation. The method includes: conveying a downhole tool configured to perform measurements of a property of the earth formation; producing an image of the earth formation from the measurements, the image comprising a plurality of sectors; dividing the sectors into radial segments, each segment corresponding to an opposite segment; rotating the segments at least one sector at a time until a specified angle is achieved; calculating an average value for the measurements associated with each segment for each rotation of the segments; stacking the average values for opposing segments to produce stack values; determining a maximum or minimum stack value; determining if the maximum or minimum stack value exceeds a threshold value; and detecting the first breakout and the second breakout if the maximum or minimum stack value exceeds the threshold value.

摘要翻译： 公开了一种用于检测穿透地层的钻孔中的一对相对突出物的方法。 该方法包括：输送井下工具，该井下工具被配置成对地层的性质进行测量; 从所述测量产生地层的图像，所述图像包括多个扇区; 将扇区分成径向段，每个段对应于相对的段; 一次旋转片段至少一个扇区，直到达到指定的角度; 计算每个段的每个段的相关测量的平均值，用于段的每次旋转; 堆叠相对段的平均值以产生堆栈值; 确定最大或最小堆栈值; 确定最大或最小堆叠值是否超过阈值; 以及如果最大或最小堆叠值超过所述阈值，则检测所述第一突破和所述第二突破。

公开(公告)号：US20140330521A1

公开(公告)日：2014-11-06

申请号：US14334202

申请日：2014-07-17

申请人： Stefan Wessling ,  Jianyong Pei

发明人： Stefan Wessling ,  Jianyong Pei

IPC分类号： E21B49/00 ,  G01V9/00

CPC分类号： E21B49/00 ,  G01V1/40 ,  G01V9/00 ,  G01V11/00

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 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 including a first set of formation measurement points and the second depth interval including a second set of formation measurement points; establishing a plurality of trendlines of depth versus formation 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在井眼中的多个深度处执行地层测量; 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对地层测量的趋势线，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。

公开(公告)号：US20120097450A1

公开(公告)日：2012-04-26

申请号：US13191016

申请日：2011-07-26

申请人： Stefan Wessling ,  Jianyong Pei

发明人： Stefan Wessling ,  Jianyong Pei

IPC分类号： E21B49/00 ,  G01V5/04 ,  G06F19/00 ,  G01V3/18

CPC分类号： G01V5/04 ,  E21B47/0002

摘要： Disclosed is a method for detecting a pair of opposing breakouts in a borehole penetrating an earth formation. The method includes: conveying a downhole tool configured to perform measurements of a property of the earth formation; producing an image of the earth formation from the measurements, the image comprising a plurality of sectors; dividing the sectors into radial segments, each segment corresponding to an opposite segment; rotating the segments at least one sector at a time until a specified angle is achieved; calculating an average value for the measurements associated with each segment for each rotation of the segments; stacking the average values for opposing segments to produce stack values; determining a maximum or minimum stack value; determining if the maximum or minimum stack value exceeds a threshold value; and detecting the first breakout and the second breakout if the maximum or minimum stack value exceeds the threshold value.

摘要翻译： 公开了一种用于检测穿透地层的钻孔中的一对相对突出物的方法。 该方法包括：输送井下工具，该井下工具被配置成对地层的性质进行测量; 从所述测量产生地层的图像，所述图像包括多个扇区; 将扇区分成径向段，每个段对应于相对的段; 一次旋转片段至少一个扇区，直到达到指定的角度; 计算每个段的每个段的相关测量的平均值，用于段的每次旋转; 堆叠相对段的平均值以产生堆栈值; 确定最大或最小堆栈值; 确定最大或最小堆叠值是否超过阈值; 并且如果最大或最小堆叠值超过阈值，则检测第一突破和第二突破。

公开(公告)号：US10451765B2

公开(公告)日：2019-10-22

申请号：US15586899

申请日：2017-05-04

申请人： Stefan Wessling ,  Nicklas Jeremias Ritzmann ,  Ulrike Peikert

发明人： Stefan Wessling ,  Nicklas Jeremias Ritzmann ,  Ulrike Peikert

IPC分类号： G01V3/38 ,  G01V3/26 ,  E21B47/0228 ,  E21B47/026 ,  E21B7/04 ,  E21B44/00 ,  E21B47/00 ,  E21B49/00 ,  G01V3/30 ,  G01V11/00

摘要： A method for estimating an inverted parameter of a subsurface formation includes measuring a first parameter of the subsurface formation and measuring a second parameter of the subsurface formation. The method further includes defining one or more inversion constraints using the second parameter and inverting with a processor the first parameter to generate the inverted parameter of the subsurface formation using the one or more inversion constraints.

公开(公告)号：US10445669B2

公开(公告)日：2019-10-15

申请号：US15360059

申请日：2016-11-23

申请人： Stefan Wessling ,  Theodorus Geerits ,  Holger Mathiszik ,  Andreas Hartmann

发明人： Stefan Wessling ,  Theodorus Geerits ,  Holger Mathiszik ,  Andreas Hartmann

IPC分类号： G06Q10/06 ,  G01V1/52 ,  E21B7/04 ,  G01V1/50 ,  G01V3/26 ,  G01V11/00 ,  E21B49/00

摘要： A method for adjusting a parameter of a wellbore operation includes: conveying a carrier through the wellbore; performing a resistivity measurement on the formation using a resistivity tool disposed on the carrier; performing an acoustic measurement on the formation using an acoustic tool disposed on the carrier; generating with a at least one processor a map of the formation using the resistivity measurement and the acoustic measurement, and adjusting the parameter using the map.

公开(公告)号：US20190113653A1

公开(公告)日：2019-04-18

申请号：US15784795

申请日：2017-10-16

申请人： Stefan Wessling ,  Nicklas Ritzmann

发明人： Stefan Wessling ,  Nicklas Ritzmann

IPC分类号： G01V99/00

摘要： Techniques for evaluating hydrocarbon reserves using tool response models are provided. An example method includes measuring a first fluid distribution of a first formation proximate to a first wellbore and measuring a second fluid distribution of a second formation proximate to a second wellbore. The method further includes generating a first tool response model for the first formation based at least in part on the first fluid distribution and generating a second tool response model for the second formation based at least in part on the second fluid distribution. The method further includes comparing results of the first tool response model to results of the second tool response model to determine a fluid distribution difference between the first formation and the second formation and implementing a drilling command to alter drilling of one of the first and second wellbores based at least in part on the fluid distribution difference.

公开(公告)号：US20190106986A1

公开(公告)日：2019-04-11

申请号：US15728693

申请日：2017-10-10

申请人： Jonas Kaiser ,  Nicklas Ritzmann ,  Stefan Wessling

发明人： Jonas Kaiser ,  Nicklas Ritzmann ,  Stefan Wessling

IPC分类号： E21B49/00 ,  G05B15/02

摘要： Systems and methods for performing field-wide downhole operations, the field having a plurality of wells. Methods include obtaining, at a computing system, a reference data set associated with the field, the reference data set including at least one property of a downhole formation, obtaining, at the computing system, a first well data set associated with a first well of the field, the first well data set including the at least one property of a downhole formation associated with the first well, calculating a similarity index ratio based on the reference data set and the first well data set, wherein the similarity index ratio indicates a similarity in values of the reference data set and the first well data set, and performing a responsive action based on the calculated similarity index ratio.