Patent ID: 8793114
Filing Date: 2014-07-29
Classification: E21B,G05B

Abstract:
1. A method for analyzing a drilling rig, comprising: generating a first finite state machine of a drilling rig control system based on an actual design of the drilling rig, wherein the first finite state machine includes model objects representing drilling rig elements; generating a reference comparison of the first finite state machine to a second finite state machine of the drilling rig control system based on a reference design of a reference drilling rig, wherein the second finite state machine includes the model objects; determining by a computer, from the first finite state machine, failure states of the drilling rig that are attainable by the drilling rig control system; and using the reference comparison for determining the failure states, wherein the failure states are indicative of items selected from a group consisting of new alarms and equipment failure states in the drilling rig control system.