Integrated surveillance and control
AssigneeLandmark Graphics Corporation
InventorsKeshava Rangarajan, Joseph Blake Winston, Anuj Jain, Xi Wang
Life of this patent
Estimating the term…
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.
Claims20
A method of operating an oilfield device comprising:
- providing a physical sensor;
- providing a virtual sensor comprising at least one of:
- a mathematical algorithm and a model, the virtual sensor producing output measures comparable to the physical sensor based on data received at least from the physical sensor;
- establishing interdependencies between the physical sensor and the virtual sensor;
- obtaining a physical sensor data stream relating to an oilfield device;
- using the physical sensor data stream as input data to the virtual sensor;
- determining whether the physical sensor data is within a predetermined range;
- dynamically calibrating the predetermined range to reduce noise variables;
- and
- generating a virtual sensor output data stream;
- and using the virtual sensor output data stream to control the oilfield device.
A virtual sensor network system for managing oilfield activity with a control system comprising:
- a plurality of virtual sensors, each comprising at least one of:
- a mathematical algorithm and a model, the virtual sensor producing output measures comparable to a physical sensor based on data received at least from the physical sensor, at least one input parameter, and at least one output parameter, integrated into a virtual sensor network;
- an input interface to obtain data from corresponding physical sensors;
- an output interface to provide data to a control system;
- and a controller configured to:
- determine interdependencies among the plurality of virtual sensors;
- obtain operational information of the plurality of virtual sensors;
- provide one or more virtual sensor output parameters to the control system based on the determined interdependencies and the operational information;
- determine whether the physical sensor data is within a predetermined range;
- and
- dynamically calibrate the predetermined range to reduce noise variables.
Dependencies are inferred from the claim text.