Methods and systems for averting or mitigating undesirable drilling events
First Claim
1. A method of automatically averting or mitigating undesirable drilling events during a drilling process, the method comprising:
- detecting the state of the drilling rig performing the drilling process, acquiring surface and/or downhole measurement data, detecting one or more undesirable drilling events by correlating the acquired measurement data with the detected state, determining a drilling rig action which averts or mitigates a detected undesirable drilling event, and overriding the drilling process by commanding performance of the action.
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Abstract
A method and system for averting or mitigating undesirable drilling events during a drilling process is disclosed. The state of the drilling rig is detected, preferably automatically, based on surface and/or downhole measurement data. One or more undesirable drilling events are detected by correlating the acquired measurement data with the detected state. A drilling rig action is determined which averts or mitigates a detected undesirable drilling event. Finally, the drilling process is overridden by commanding performance of the action.
The algorithm used in detecting the most likely rig state is preferably probabilistic in nature, and is even more preferably based on particle filtering techniques.
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Citations
10 Claims
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1. A method of automatically averting or mitigating undesirable drilling events during a drilling process, the method comprising:
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detecting the state of the drilling rig performing the drilling process, acquiring surface and/or downhole measurement data, detecting one or more undesirable drilling events by correlating the acquired measurement data with the detected state, determining a drilling rig action which averts or mitigates a detected undesirable drilling event, and overriding the drilling process by commanding performance of the action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for automatically averting or mitigating undesirable drilling events during a drilling process, the system comprising:
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a detection system for detecting the state of the drilling rig performing the drilling process, an acquisition system for acquiring surface and/or downhole measurement data, a processor for (i) detecting one or more undesirable drilling events by correlating the acquired measurement data with the detected state, and (ii) determining a drilling rig action which averts or mitigates a detected undesirable drilling event, and a command issue device for overriding the drilling process by issuing a command requiring performance of the action.
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Specification