公开(公告)号：US20180371894A1

公开(公告)日：2018-12-27

申请号：US16018695

申请日：2018-06-26

Applicant: HRL LABORATORIES, LLC

Inventor： Shuoqin Wang ,  Logan D. Sorenson ,  David L. Walter ,  Adour V. Kabakian ,  Hung Nguyen ,  Raviv Perahia ,  David T. Chang

IPC: E21B47/022 ,  E21B47/06 ,  E21B7/04 ,  E21B47/024

Abstract: A method for generating an output of a downhole inertial measurement unit (IMU) includes: generating a trajectory between a plurality of survey points of a planned well data as a function of time, wherein the planned well data includes a plurality of three-dimensional coordinates corresponding to the survey points of an underground planned well are used to generate a trajectory comprising a plurality of trajectory coordinates between the consecutive ones of the survey points; generating sensor data for each of the trajectory coordinates as a function of time based on the geodetic reference parameters, the generated sensor data comprising: generated accelerometer output; generated gyroscopic output; and generated magnetometer output; and outputting the generated accelerometer output; the generated gyroscopic output; and the generated magnetometer output as a function of time as a generated output of the downhole IMU.

公开(公告)号：US11299981B2

公开(公告)日：2022-04-12

申请号：US16208449

申请日：2018-12-03

Applicant: HRL Laboratories, LLC

Inventor： Hung Nguyen ,  Logan D. Sorenson ,  David L. Walter ,  Adour V. Kabakian ,  Raviv Perahia ,  Shuoqin Wang ,  David W. Shahan ,  Lian X. Huang ,  David T. Chang

IPC: E21B47/09 ,  E21B41/00 ,  G01P15/105 ,  G01P15/14 ,  G01C1/00 ,  G01C19/00 ,  E21B47/024 ,  E21B47/022 ,  G01P15/18

Abstract: An instrument package for use during the drilling a wellbore. The instrument package includes a plurality of instruments such as accelerometers, gyroscopes, and magnetometers; a computer is configured to determine the current position of the plurality of instruments from a set of measurements produced by the plurality of instruments; and wherein the plurality of instruments are mechanically isolated from a drill head assembly by one or more multi-degree of freedom vibration isolators. The computer preferably has at least two modes different analytical modes of analyzing the set of measurements produced by the plurality of instruments, including a continuous mode and a survey mode, the continuous mode being operational during times that active drilling is occurring and the survey mode being operational during times that the active drilling is not occurring.

公开(公告)号：US11066923B2

公开(公告)日：2021-07-20

申请号：US16018695

申请日：2018-06-26

Applicant: HRL LABORATORIES, LLC

Inventor： Shuoqin Wang ,  Logan D. Sorenson ,  David L. Walter ,  Adour V. Kabakian ,  Hung Nguyen ,  Raviv Perahia ,  David T. Chang

IPC: E21B7/04 ,  G01C19/5776 ,  E21B47/0228 ,  E21B47/06 ,  G01C21/16 ,  E21B47/022 ,  G01C17/02

Abstract: A method for generating an output of a downhole inertial measurement unit (IMU) includes: generating a trajectory between a plurality of survey points of a planned well data as a function of time, wherein the planned well data includes a plurality of three-dimensional coordinates corresponding to the survey points of an underground planned well are used to generate a trajectory comprising a plurality of trajectory coordinates between the consecutive ones of the survey points; generating sensor data for each of the trajectory coordinates as a function of time based on the geodetic reference parameters, the generated sensor data comprising: generated accelerometer output; generated gyroscopic output; and generated magnetometer output; and outputting the generated accelerometer output; the generated gyroscopic output; and the generated magnetometer output as a function of time as a generated output of the downhole IMU.

公开(公告)号：US10718198B2

公开(公告)日：2020-07-21

申请号：US15823489

申请日：2017-11-27

Applicant: HRL Laboratories, LLC

Inventor： Logan D. Sorenson ,  Shuoqin Wang ,  David L. Walter ,  Adour V. Kabakian ,  Keerti S. Kona ,  Hung Nguyen ,  Raviv Perahia ,  David Chang

IPC: E21B44/00 ,  E21B47/04 ,  E21B47/022 ,  G01C21/16 ,  E21B41/00 ,  G01R33/02

Abstract: Described is a system for estimating a trajectory of a borehole. The system processes signals of sensor streams obtained from an inertial sensor system. Using the set of processed signals, the system determines whether a drill is in a survey mode state or a continuous mode state, and a measured depth of the borehole is determined. A set of survey mode positioning algorithms is applied when the drill is stationary. A set of continuous mode navigation algorithms is applied when the drill is non-stationary. Using at least one Kalman filter, results of the set of survey mode positioning algorithms and the set of continuous mode navigation algorithms are combined. An estimate of a borehole trajectory and corresponding ellipse of uncertainty (EOU) is generated using the combined results.

公开(公告)号：US20190169979A1

公开(公告)日：2019-06-06

申请号：US16208449

申请日：2018-12-03

Applicant: HRL Laboratories, LLC

Inventor： Hung NGUYEN ,  Logan D. Sorenson ,  David L. Walter ,  Adour V. Kabakian ,  Raviv Perahia ,  Shuoqin Wang ,  David W. Shahan ,  Lian X. Huang ,  David T. Chang

IPC: E21B47/09 ,  E21B41/00 ,  G01P15/18 ,  G01P15/14 ,  G01P15/105

Abstract: An instrument package for use during the drilling a wellbore. The instrument package includes a plurality of instruments such as accelerometers, gyroscopes, and magnetometers; a computer is configured to determine the current position of the plurality of instruments from a set of measurements produced by the plurality of instruments; and wherein the plurality of instruments are mechanically isolated from a drill head assembly by one or more multi-degree of freedom vibration isolators. The computer preferably has at least two modes different analytical modes of analyzing the set of measurements produced by the plurality of instruments, including a continuous mode and a survey mode, the continuous mode being operational during times that active drilling is occurring and the survey mode being operational during times that the active drilling is not occurring.

公开(公告)号：US20180080310A1

公开(公告)日：2018-03-22

申请号：US15823489

申请日：2017-11-27

Applicant: HRL Laboratories, LLC

Inventor： Logan D. Sorenson ,  Shuoqin Wang ,  David L. Walter ,  Adour V. Kabakian ,  Keerti S. Kona ,  Hung Nguyen ,  Raviv Perahia ,  David Chang

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

CPC classification number: E21B44/005 ,  E21B41/0092 ,  E21B47/022 ,  E21B47/04 ,  G01C21/16 ,  G01R33/0206

Abstract: Described is a system for estimating a trajectory of a borehole. The system processes signals of sensor streams obtained from an inertial sensor system. Using the set of processed signals, the system determines whether a drill is in a survey mode state or a continuous mode state, and a measured depth of the borehole is determined. A set of survey mode positioning algorithms is applied when the drill is stationary. A set of continuous mode navigation algorithms is applied when the drill is non-stationary. Using at least one Kalman filter, results of the set of survey mode positioning algorithms and the set of continuous mode navigation algorithms are combined. An estimate of a borehole trajectory and corresponding ellipse of uncertainty (EOU) is generated using the combined results.