公开(公告)号：US20210270088A1

公开(公告)日：2021-09-02

申请号：US17306567

申请日：2021-05-03

Applicant: Schlumberger Technology Corporation

Inventor： Peter Hornblower ,  Christopher C. Bogath ,  Adam Bowler ,  Junichi Sugiura

IPC: E21B7/06 ,  E21B45/00 ,  E21B47/26

Abstract: A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

公开(公告)号：US20150377004A1

公开(公告)日：2015-12-31

申请号：US14766127

申请日：2014-03-19

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Peter Hornblower ,  Christopher C. Bogath ,  Adam Bowler ,  Junichi Sugiura

IPC: E21B44/00 ,  E21B47/022 ,  E21B45/00 ,  E21B7/04

CPC classification number: E21B7/06 ,  E21B45/00 ,  E21B47/022 ,  E21B47/124

Abstract: A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

Abstract translation: 用于控制钻井工具的井下闭环方法包括测量相应的第一和第二上部和下部测量站处的地下钻孔的第一和第二态度。 第一和第二态度在钻井时被处理在井下，以计算上和下测量站之间的地下钻孔的角度变化。 将计算出的角度变化与预定阈值进行比较。 当角度变化小于阈值时，该过程可以连续重复。 当地下钻孔的角度变化大于或等于阈值时，第一和第二态度进一步在井底处理以计算工具面角度。 然后可以进一步处理工具面角度以控制地下钻孔的钻孔方向。

公开(公告)号：US09134452B2

公开(公告)日：2015-09-15

申请号：US13710449

申请日：2012-12-10

Applicant: Schlumberger Technology Corporation

Inventor： Adam Bowler ,  Christopher C. Bogath ,  Junichi Sugiura ,  Ken-Vidar Ditlefsen

IPC: G01V9/00 ,  G06F15/00 ,  G06F17/50 ,  G01V11/00 ,  E21B47/022

CPC classification number: G01V9/00 ,  E21B47/022 ,  G01V11/00 ,  G06F15/00 ,  G06F17/5009

Abstract: A method, system, and computer readable medium is disclosed to estimate a survey parameter (e.g., attitude) for a drilling operation in a subterranean formation. The survey parameter is calculated using multiple methods with the results of the different methods weighted to improve the accuracy at a given attitude of the tool and angular velocity of the sensor package. Results from the different methods are combined based on a weighting function to generate the improved values of inclination and azimuth. Specifically, the values of the weighting function depend, linearly or non-linearly, on the attitude of the tool and quality of the survey data. In one scenario, the attitude of the tool is approximated by the most recently obtained static inclination/azimuth. In addition, the quality of the survey data is approximated by a measure of vibration severity that is represented by the number of good data points based on the roll rate.

Abstract translation: 公开了一种方法，系统和计算机可读介质来估计用于地下地层中的钻井作业的测量参数（例如姿态）。 使用多种方法计算测量参数，其中加权的不同方法的结果提高了工具的给定姿态和传感器封装的角速度的精度。 来自不同方法的结果基于加权函数进行组合，以产生改进的倾斜度和方位角值。 具体来说，加权函数的值线性或非线性地依赖于工具的态度和调查数据的质量。 在一种情况下，工具的姿态由最近获得的静态倾斜/方位近似。 此外，调查数据的质量由基于滚动速率的良好数据点数量表示的振动严重度的度量近似。

公开(公告)号：US20140163888A1

公开(公告)日：2014-06-12

申请号：US13710449

申请日：2012-12-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Adam Bowler ,  Christopher C. Bogath ,  Junichi Sugiura ,  Ken-Vidar Ditlefsen

IPC: G01V9/00 ,  G06F17/50 ,  G06F15/00

CPC classification number: G01V9/00 ,  E21B47/022 ,  G01V11/00 ,  G06F15/00 ,  G06F17/5009

Abstract: A method, system, and computer readable medium is disclosed to estimate a survey parameter (e.g., attitude) for a drilling operation in a subterranean formation. The survey parameter is calculated using multiple methods with the results of the different methods weighted to improve the accuracy at a given attitude of the tool and angular velocity of the sensor package. Results from the different methods are combined based on a weighting function to generate the improved values of inclination and azimuth. Specifically, the values of the weighting function depend, linearly or non-linearly, on the attitude of the tool and quality of the survey data. In one scenario, the attitude of the tool is approximated by the most recently obtained static inclination/azimuth. In addition, the quality of the survey data is approximated by a measure of vibration severity that is represented by the number of good data points based on the roll rate.

Abstract translation: 公开了一种方法，系统和计算机可读介质来估计用于地下地层中的钻井作业的测量参数（例如姿态）。 使用多种方法计算测量参数，其中加权的不同方法的结果提高了工具的给定姿态和传感器封装的角速度的精度。 来自不同方法的结果基于加权函数进行组合，以产生改进的倾斜度和方位角值。 具体来说，加权函数的值线性或非线性地依赖于工具的态度和调查数据的质量。 在一种情况下，工具的姿态由最近获得的静态倾斜/方位近似。 此外，调查数据的质量由基于滚动速率的良好数据点数量表示的振动严重度的度量近似。

公开(公告)号：US10995552B2

公开(公告)日：2021-05-04

申请号：US16243125

申请日：2019-01-09

Applicant: Schlumberger Technology Corporation

Inventor： Peter Hornblower ,  Christopher C. Bogath ,  Adam Bowler ,  Junichi Sugiura

IPC: E21B45/00 ,  E21B7/06 ,  E21B47/26

Abstract: A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

公开(公告)号：US10214964B2

公开(公告)日：2019-02-26

申请号：US14766127

申请日：2014-03-19

Applicant: Schlumberger Technology Corporation

Inventor： Peter Hornblower ,  Christopher C. Bogath ,  Adam Bowler ,  Junichi Sugiura

IPC: E21B45/00 ,  E21B7/06 ,  E21B47/12 ,  E21B47/022

Abstract: A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

公开(公告)号：US20190145173A1

公开(公告)日：2019-05-16

申请号：US16243125

申请日：2019-01-09

Applicant: Schlumberger Technology Corporation

Inventor： Peter Hornblower ,  Christopher C. Bogath ,  Adam Bowler ,  Junichi Sugiura

IPC: E21B7/06 ,  E21B47/022 ,  E21B45/00 ,  E21B47/12

Abstract: A downhole closed loop method for controlling a drilling toolface includes measuring first and second attitudes of the subterranean borehole at corresponding first and second upper and lower survey stations. The first and second attitudes are processed downhole while drilling to compute an angle change of the subterranean borehole between the upper and lower survey stations. The computed angle change is compared with a predetermined threshold. This process may be continuously repeated while the angle change is less than the threshold. The first and second attitudes are further processed downhole to compute a toolface angle when the angle change of the subterranean borehole is greater than or equal to the threshold. The toolface angle may then be further processed to control a direction of drilling of the subterranean borehole.

公开(公告)号：US09932820B2

公开(公告)日：2018-04-03

申请号：US14337036

申请日：2014-07-21

Applicant: Schlumberger Technology Corporation

Inventor： Junichi Sugiura ,  Christopher C. Bogath ,  Adam Bowler

IPC: G01C17/38 ,  E21B47/024 ,  G01C25/00

CPC classification number: E21B47/024 ,  G01C17/38 ,  G01C25/005

Abstract: A method to perform a drilling operation. The method includes calibrating an axial survey sensor of a bottom hole assembly (BHA) by obtaining, from the axial survey sensor, a data log as a first function of azimuthal angle within a borehole, generating, by a computer processor of the BHA and using a pre-determined algorithm, a fitted curve as a second function of the azimuthal angle, wherein the fitted curve is generated based on the data log to represent a calibration error of the axial survey sensor, and extracting, by the computer processor of the BHA, a calibration parameter from the fitted curve. Accordingly, the drilling operation is performed using at least the axial survey sensor based on the calibration parameter.

公开(公告)号：US09631477B2

公开(公告)日：2017-04-25

申请号：US14072677

申请日：2013-11-05

Applicant: Schlumberger Technology Corporation

Inventor： Richard Harmer ,  Walter David Aldred ,  Benjamin Jeffryes ,  Adam Bowler

IPC: G06F19/00 ,  E21B47/024 ,  E21B44/00

CPC classification number: E21B47/024 ,  E21B44/005

Abstract: A method for determining a drilling state of a bottom hole assembly in a wellbore includes acquiring one or more downhole sensor measurements and processing the sensor measurements using a downhole processor to determine a drilling state of the bottom hole assembly. An operating state of the bottom hole assembly may be automatically changed in response to the determined drilling state. A method for computing a dynamic drilling energy of a bottom hole assembly includes acquiring at least one sensor measurement and processing the sensor measurements to obtain at least one of (i) an energy of axial motion of the bottom hole assembly, (ii) an energy of rotational motion of the bottom hole assembly, and (iii) an energy of lateral motion of the bottom hole assembly.

公开(公告)号：US20150027779A1

公开(公告)日：2015-01-29

申请号：US14337036

申请日：2014-07-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Junichi Sugiura ,  Christopher C. Bogath ,  Adam Bowler

IPC: E21B47/022

CPC classification number: E21B47/024 ,  G01C17/38 ,  G01C25/005

Abstract: A method to perform a drilling operation. The method includes calibrating an axial survey sensor of a bottom hole assembly (BHA) by obtaining, from the axial survey sensor, a data log as a first function of azimuthal angle within a borehole, generating, by a computer processor of the BHA and using a pre-determined algorithm, a fitted curve as a second function of the azimuthal angle, wherein the fitted curve is generated based on the data log to represent a calibration error of the axial survey sensor, and extracting, by the computer processor of the BHA, a calibration parameter from the fitted curve. Accordingly, the drilling operation is performed using at least the axial survey sensor based on the calibration parameter.

Abstract translation: 执行钻井作业的方法。 该方法包括通过从轴向测量传感器获得数据记录作为钻孔内的方位角的第一函数来校准井底组件（BHA）的轴向测量传感器，由BHA的计算机处理器产生并使用 预定算法，拟合曲线作为方位角的第二函数，其中基于数据记录生成拟合曲线以表示轴向测量传感器的校准误差，并且由计算机处理器提取BHA ，拟合曲线的校准参数。 因此，使用至少基于校准参数的轴向测量传感器进行钻孔操作。