Drilling System and Associated System and Method for Monitoring, Controlling, and Predicting Vibration in an Underground Drilling Operation
OwnerMark Ellsworth Wassellinventor
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Abstract
A drilling system and associated systems and methods for monitoring, controlling, and predicting vibration of a drilling operation. The vibration information can include axial, lateral or torsional vibration of a drill string.
Claims21
A computer implemented method for predicting vibration information for a drilling system having a drill string, the drill string includes a drill bit that is configured to form a borehole in an earthen formation during a drilling operation, the method comprising the steps of:
- accessing, via the computer processor, drilling system component information, the drilling system component information including one or more characteristics of the drill string;
- accessing, via the computer processor, expected operating information for the drilling operation, the expected operating information including at least a weight-on-bit (WOB), a rotational speed of the drill bit, a borehole diameter, and a vibration damping coefficient;
- and
- predicting vibration information for the drill string via the computer processor, the predicted vibration information including at least an amplitude for each of an axial vibration, a lateral vibration, and a torsional vibration of the drill string, the prediction of the vibration information being based on the drilling system component information and an energy balance of the drill string operating according to the expected operation information for the drilling operation.
The method of claim 6, wherein the step determining the critical speeds of the drill string includes determining the critical speeds based on at least one of the weight-on-bit and a of rotary speed.
A non-transitory computer readable storage medium having stored therein computer executable instructions for a method for predicting vibration information for a drilling system having a drill string, the drill string including a drill bit that is configured to form a borehole in an earthen formation during a drilling operation, the method comprising the steps of:
- a. accessing drilling system component information, the drilling system component information including one or more characteristics of the drill string;
- b. accessing expected operating information for the drilling operation, wherein the expected operating information includes at least a weight-on-bit (WOB), a rotational speed of the drill bit, a borehole diameter, and a vibration damping coefficient;
- and
- c. defining a drilling system model that includes the drilling system component information and the expected operating information;
- d. predicting, via the drilling system model, vibration information for the drill string, the predicted vibration information including an amplitude for each of an axial vibration, a lateral vibration, and a torsional vibration of the drill string, wherein the prediction of the vibration information is based on the drilling system component information and an energy balance of the drill string operating according to the expected operation information.
A drilling system configured to form a borehole in an earthen formation during a drilling operation, the drilling system comprising:
- a drill string supporting a drill bit, the drill bit configured to defined the borehole;
- at least one computing device including a memory portion having stored thereon drilling system component information, the drilling system component information including one or more characteristics of the drill string, the memory portion further including expected operating information for the drilling operation, the expected operating information including at least a weight-on-bit (WOB), a rotational speed of the drill bit, a borehole diameter, and a vibration damping coefficient;
- and
- a computer processor in communication with the memory portion, the computer processor configured to predict vibration information for the drill string, the predicted vibration information including at least an amplitude for each of an axial vibration, a lateral vibration, and a torsional vibration of the drill string, wherein the prediction of the vibration information being based on the drilling system component information and an energy balance of the drill string operating according to the expected operation information for the drilling operation.
Dependencies are inferred from the claim text.