公开(公告)号：US11795804B2

公开(公告)日：2023-10-24

申请号：US16764558

申请日：2019-07-12

Applicant: Landmark Graphics Corporation

Inventor： Yashas Malur Saidutta ,  Srinath Madasu ,  Shashi Dande ,  Keshava Prasad Rangarajan ,  Raja Vikram R. Pandya ,  Jeffrey M. Yarus ,  Robello Samuel

IPC: E21B44/00 ,  E21B7/04 ,  E21B41/00 ,  G06Q10/0631

CPC classification number: E21B44/00 ,  E21B7/04 ,  E21B41/00 ,  G06Q10/06313 ,  E21B2200/22

Abstract: A drilling device may use a concurrent path planning process to create a path from a starting location to a destination location within a subterranean environment. The drilling device can receive sensor data. A probability distribution can be generated from the sensor data indicating one or more likely materials compositions that make up each portion of the subterranean environment. The probability distribution can be sampled, and for each sample, a drill path trajectory and drill parameters for the trajectory can be generated. A trained neural network may evaluate each trajectory and drill parameters to identify the most ideal trajectory based on the sensor data. The drilling device may then initiate drilling operations for a predetermined distance along the ideal trajectory.

公开(公告)号：US12104489B2

公开(公告)日：2024-10-01

申请号：US17619784

申请日：2020-02-10

Applicant: Landmark Graphics Corporation

Inventor： Raja Vikram Raj Pandya ,  Srinath Madasu ,  Keshava Prasad Rangarajan ,  Shashi Dande ,  Yashas Malur Saidutta

IPC: E21B7/04 ,  E21B44/02

CPC classification number: E21B7/04 ,  E21B44/02

Abstract: Geosteering can be used in a drilling operation to create a wellbore that is used to extract hydrocarbons from a defined zone within the subterranean formation. According to some aspects, generating paths for the wellbore may include using path-planning protocols and pure-pursuit protocols. The pure-pursuit protocol may be executed to output a plurality of candidate drilling paths. The output may also include control parameters for controlling the drill bit. A trajectory optimizer may determine a result of multi-objective functions for each candidate path. A cost function may represent a cost or loss associated with a candidate path. Additionally, the trajectory optimizer may perform an optimization protocol, such as Bayesian optimization, on the cost functions to determine which candidate path to select. The selected candidate path may correspond to new control parameters for controlling the drill bit to reach the target location.

公开(公告)号：US20220316278A1

公开(公告)日：2022-10-06

申请号：US17619784

申请日：2020-02-10

Applicant: Landmark Graphics Corporation

Inventor： Raja Vikram Raj Pandya ,  Srinath Madasu ,  Keshava Prasad Rangarajan ,  Shashi Dande ,  Yashas Malur Saidutta

IPC: E21B7/04

Abstract: Geosteering can be used in a drilling operation to create a wellbore that is used to extract hydrocarbons from a defined zone within the subterranean formation. According to some aspects, generating paths for the wellbore may include using path-planning protocols and pure-pursuit protocols. The pure-pursuit protocol may be executed to output a plurality of candidate drilling paths. The output may also include control parameters for controlling the drill bit. A trajectory optimizer may determine a result of multi-objective functions for each candidate path. A cost function may represent a cost or loss associated with a candidate path. Additionally, the trajectory optimizer may perform an optimization protocol, such as Bayesian optimization, on the cost functions to determine which candidate path to select. The selected candidate path may correspond to new control parameters for controlling the drill bit to reach the target location.

公开(公告)号：US20230116456A1

公开(公告)日：2023-04-13

申请号：US17047109

申请日：2020-06-05

Applicant: Landmark Graphics Corporation

Inventor： Yashas Malur Saidutta ,  Raja Vikram R Pandya ,  Srinath Madasu ,  Shashi Dande ,  Keshava Rangarajan

IPC: E21B44/00 ,  G06N3/092

Abstract: Systems and methods for automated drilling control and optimization are disclosed. Training data, including values of drilling parameters, for a current stage of a drilling operation are acquired. A reinforcement learning model is trained to estimate values of the drilling parameters for a subsequent stage of the drilling operation to be performed, based on the acquired training data and a reward policy mapping inputs and outputs of the model. The subsequent stage of the drilling operation is performed based on the values of the drilling parameters estimated using the trained model. A difference between the estimated and actual values of the drilling parameters is calculated, based on real-time data acquired during the subsequent stage of the drilling operation. The reinforcement learning model is retrained to refine the reward policy, based on the calculated difference. At least one additional stage of the drilling operation is performed using the retrained model.

公开(公告)号：US20210404313A1

公开(公告)日：2021-12-30

申请号：US16764558

申请日：2019-07-12

Applicant: Landmark Graphics Corporation

Inventor： Yashas Malur Saidutta ,  Srinath Madasu ,  Shashi Dande ,  Keshava Prasad Rangarajan ,  Raja Vikram R. Pandya ,  Jeffrey M. Yarus ,  Robello Samuel

IPC: E21B44/00 ,  E21B7/04 ,  E21B41/00

Abstract: A drilling device may use a concurrent path planning process to create a path from a starting location to a destination location within a subterranean environment. The drilling device can receive sensor data. A probability distribution can be generated from the sensor data indicating one or more likely materials compositions that make up each portion of the subterranean environment. The probability distribution can be sampled, and for each sample, a drill path trajectory and drill parameters for the trajectory can be generated. A trained neural network may evaluate each trajectory and drill parameters to identify the most ideal trajectory based on the sensor data. The drilling device may then initiate drilling operations for a predetermined distance along the ideal trajectory.

公开(公告)号：US11982171B2

公开(公告)日：2024-05-14

申请号：US17047109

申请日：2020-06-05

Applicant: Landmark Graphics Corporation

Inventor： Yashas Malur Saidutta ,  Raja Vikram R Pandya ,  Srinath Madasu ,  Shashi Dande ,  Keshava Rangarajan

IPC: E21B44/00 ,  G06N3/092

CPC classification number: E21B44/00 ,  G06N3/092 ,  E21B2200/20 ,  E21B2200/22

Abstract: Systems and methods for automated drilling control and optimization are disclosed. Training data, including values of drilling parameters, for a current stage of a drilling operation are acquired. A reinforcement learning model is trained to estimate values of the drilling parameters for a subsequent stage of the drilling operation to be performed, based on the acquired training data and a reward policy mapping inputs and outputs of the model. The subsequent stage of the drilling operation is performed based on the values of the drilling parameters estimated using the trained model. A difference between the estimated and actual values of the drilling parameters is calculated, based on real-time data acquired during the subsequent stage of the drilling operation. The reinforcement learning model is retrained to refine the reward policy, based on the calculated difference. At least one additional stage of the drilling operation is performed using the retrained model.