Utilizing look-up tables representing all models in an automation control architecture to independently handle uncertainties in sensed data in oil and gas well construction

US10185306B2 · kind B2 · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• Pradeepkumar Ashok · Austin, US
• Eric van Oort · Bee Cave, US
• Adrian Marius Ambrus · Stavanger, NO
• Parham Pournazari · Austin, US
• Roman Shor · Calgary, CA

Key dates

• Filing date: Feb 25, 2016
• Grant date: Jan 22, 2019
• Expiry date: Dec 25, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/45129
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method, system and computer program product for utilizing look-up tables representing all models in an automation control architecture to independently handle uncertainties in sensed data. Data is stored in a form of conditional probability tables (CPTs) or conditional probability distributions (CPDs), where the data comes from an operator, a service provider, a drilling contractor and an equipment manufacturer. Models of the drilling process domains, such as wellbore hydraulics, drill bit/rock interactions, torque and drag modeling, vibration modeling and drilling machinery operation, are received. Data is extracted from these models into the CPTs or CPDs. The CPTs or CPDs are converted to look-up tables. Data in the look-up tables are then visually displayed in graphical form. As a result, real-time troubleshooting of drilling operations occurs in an efficient manner.