公开(公告)号：US20190338636A1

公开(公告)日：2019-11-07

申请号：US16513408

申请日：2019-07-16

Applicant: Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

Inventor： Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

IPC: E21B49/00

Abstract: 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.

公开(公告)号：US20120199397A1

公开(公告)日：2012-08-09

申请号：US13360376

申请日：2012-01-27

Applicant: Stefan Wessling ,  XiaoWei Wang ,  Anne Bartetzko ,  Jianyong Pei

Inventor： Stefan Wessling ,  XiaoWei Wang ,  Anne Bartetzko ,  Jianyong Pei

IPC: E21B47/06 ,  E21B49/00 ,  G01V3/32 ,  G01V3/18 ,  E21B47/14 ,  G01V1/40

CPC classification number: E21B47/06 ,  E21B21/08 ,  E21B49/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130066558A1

公开(公告)日：2013-03-14

申请号：US13229212

申请日：2011-09-09

Applicant: Stefan Wessling ,  Jianyong Pei

Inventor： Stefan Wessling ,  Jianyong Pei

IPC: G06F19/00 ,  G01V1/40 ,  G01V3/18 ,  E21B47/06

CPC classification number: E21B49/00 ,  G01V1/40 ,  G01V9/00 ,  G01V11/00

Abstract: 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.

Abstract translation: 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：US09157316B2

公开(公告)日：2015-10-13

申请号：US13360376

申请日：2012-01-27

Applicant: Stefan Wessling ,  XiaoWei Wang ,  Anne Bartetzko ,  Jianyong Pei

Inventor： Stefan Wessling ,  XiaoWei Wang ,  Anne Bartetzko ,  Jianyong Pei

IPC: E21B47/06 ,  E21B21/08 ,  E21B49/00

CPC classification number: E21B47/06 ,  E21B21/08 ,  E21B49/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140214325A1

公开(公告)日：2014-07-31

申请号：US13755973

申请日：2013-01-31

Applicant: Stefan Wessling ,  Jianyong Pei ,  Roland May ,  Andreas Hartmann ,  Thomas Dahl

Inventor： Stefan Wessling ,  Jianyong Pei ,  Roland May ,  Andreas Hartmann ,  Thomas Dahl

IPC: E21B47/06

CPC classification number: E21B47/06

Abstract: 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.

Abstract translation: 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

Applicant: Stefan Wessling ,  Jianyong Pei

Inventor： Stefan Wessling ,  Jianyong Pei

IPC: G01V1/40

CPC classification number: E21B49/00 ,  G01V1/40 ,  G01V9/00 ,  G01V11/00

Abstract: 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.

Abstract translation: 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：US11293283B2

公开(公告)日：2022-04-05

申请号：US16513408

申请日：2019-07-16

Applicant: Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

Inventor： Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

IPC: E21B49/00

Abstract: 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.

公开(公告)号：US10352158B2

公开(公告)日：2019-07-16

申请号：US13408705

申请日：2012-02-29

Applicant: Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

Inventor： Jianyong Pei ,  Thomas G. Dahl ,  John D. Macpherson ,  Pushkar N. Jogi ,  Hanno Reckmann

IPC: G01V1/40 ,  E21B49/00 ,  E21B41/00

Abstract: 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.

公开(公告)号：US09951607B2

公开(公告)日：2018-04-24

申请号：US13755973

申请日：2013-01-31

Applicant: Stefan Wessling ,  Jianyong Pei ,  Roland May ,  Andreas Hartmann ,  Thomas Dahl

Inventor： Stefan Wessling ,  Jianyong Pei ,  Roland May ,  Andreas Hartmann ,  Thomas Dahl

IPC: E21B47/06

CPC classification number: E21B47/06

Abstract: 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

Applicant: Stefan Wessling ,  Jianyong Pei

Inventor： Stefan Wessling ,  Jianyong Pei

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

CPC classification number: G01V5/04 ,  E21B47/0002

Abstract: 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.

Abstract translation: 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。