公开(公告)号：US11598197B2

公开(公告)日：2023-03-07

申请号：US16637263

申请日：2018-04-05

Applicant: Landmark Graphics Corporation

Inventor： Keshava Rangarajan ,  Joseph Blake Winston ,  Anuj Jain ,  Xi Wang

IPC: E21B44/00 ,  G06N20/00 ,  E21B47/12 ,  G05B13/02 ,  G05B13/04 ,  G06N3/08 ,  H04L67/125

Abstract: A method of managing oilfield activity with a control system is provided having a plurality of virtual sensors and integrating the virtual sensors into a virtual sensor network. The method includes determining interdependencies among the virtual sensors, obtaining operational information from the virtual sensors, and providing virtual sensor output to the control system based on the determined interdependencies and the operational information.

公开(公告)号：US11441404B2

公开(公告)日：2022-09-13

申请号：US17043129

申请日：2018-04-12

Applicant: Landmark Graphics Corporation

Inventor： Srinath Madasu ,  Yogendra Narayan Pandey ,  Keshava Rangarajan

IPC: E21B43/26 ,  E21B47/06 ,  G06N3/04 ,  G06N3/063

Abstract: A method for fracturing a formation is provided. Real-time fracturing data is acquired from a well bore during fracturing operation. The real-time fracturing data is processed using a recurrent neural network trained using historical data from analogous wells. A real-time response variable prediction is determined using the processed real-time fracturing data. Fracturing parameters for the fracturing operation are adjusted in real-time based on the real-time response variable prediction. The fracturing operation is performed using the fracturing parameters that were adjusted based on the real-time response variable prediction.

公开(公告)号：US20220236707A1

公开(公告)日：2022-07-28

申请号：US17619341

申请日：2020-03-16

Applicant: Landmark Graphics Corporation

Inventor： Keshava Rangarajan ,  Shashi Dande ,  Rohan Lewis ,  Siddhartha Kazuma Rangarajan ,  Aditya Chemudupaty

IPC: G05B19/042

Abstract: A system for autonomous operation and management of oil and gas fields includes at least one autonomous vehicle. The system also includes a processor communicatively couplable to the plurality of autonomous vehicles and a non-transitory memory device including instructions that are executable by the processor to cause the processor to perform operations. The operations include receiving field analytics data of an oil and gas field and producing at least one hydrocarbon field model based on the field analytics data. Additionally, the operations include deploying the at least one hydrocarbon field model to a sensor trap appliance using the at least one autonomous vehicles and collecting well sensor data from the sensor trap appliance. Further, the operations include detecting an anomaly using the at least one hydrocarbon field model and the well sensor data and triggering an operational process based on detecting the anomaly.

公开(公告)号：US20210324723A1

公开(公告)日：2021-10-21

申请号：US16617591

申请日：2018-08-30

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Srinath Madasu ,  Keshava Rangarajan

IPC: E21B44/02 ,  E21B45/00 ,  G05B13/02

Abstract: Systems and methods for controlling drilling operations are provided. A controller for a drilling system may provide drilling parameters such as weight-on-bit and rotation rate parameters to the drilling system, based on a machine-learned reward policy and a model-based prediction. The machine-learned reward policy may be generated during drilling operations and used to modify recommended values from the model-based prediction for subsequent drilling operations to achieve a desired rate-of-penetration.

公开(公告)号：US20200378236A1

公开(公告)日：2020-12-03

申请号：US16968705

申请日：2018-06-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Greg Daniel Brumbaugh ,  Youpeng Huang ,  Janaki Vamaraju ,  Joseph Blake Winston ,  Aimee Jackson Taylor ,  Keshava Rangarajan ,  Avinash Wesley

IPC: E21B44/02 ,  E21B47/04 ,  E21B7/06

Abstract: A drill bit subsystem can include a drill bit, a processor, and a non-transitory computer-readable medium for storing instructions and for being positioned downhole with the drill bit. The instructions of the non-transitory computer-readable medium can include a machine-teachable module and a control module that are executable by the processor. The machine-teachable module can receive depth data and rate of drill bit penetration from one or more sensors in a drilling operation, and determine an estimated lithology of a formation at which the drill bit subsystem is located. The control module can use the estimated lithology to determine an updated location of the drill bit subsystem, and control a direction of the drill bit using the updated location and a drill plan.