Dynamic vibrational control
AssigneeSmith International, Inc.
InventorsSujian Huang, Stuart Oliver, Graham Stronach
Life of this patent
Estimating the term…
Abstract
A method for reducing vibration of a drilling tool assembly is disclosed. The method includes modeling the drilling tool assembly based on input parameters, simulating a vibration of a drill string coupled with a vibration of a drill bit, determining an initial total vibration from output parameters generated by the simulation, determining a location for at least one vibrational control device based on the initial total vibration to reduce the initial total vibration, and disposing the at least one vibrational control device on the drill string at the determined location.
Claims15
1-23. (canceled)
A method to dynamically reduce vibration while drilling with a drilling tool assembly, the method comprising:
- disposing the drilling tool assembly at a distal end of a data transmitting drillstring;
- disposing at least one vibration control device on the data transmitting drillstring;
- measuring downhole input parameters with the drilling tool assembly while drilling;
- determining a downhole vibration condition from the measured downhole input parameters;
- actuating the at least one vibration control device through the data transmitting drillstring in response to the determined downhole vibration condition.
An apparatus to drill a borehole, the apparatus comprising:
- a drilling assembly disposed at a distal end of a data transmitting drillstring;
- the data transmitting drillstring configured to communicate data from a vibration measurement tool of the drilling assembly to a surface location;
- the data transmitting drillstring configured to instruct at least one vibration control device of the drilling assembly to activate in response to the data from the vibration measurement tool.
A method to drill a borehole with a drilling tool assembly, the method comprising:
- disposing the drilling tool assembly upon a distal end of an inductive data transmitting drillstring;
- the drilling tool assembly including at least one measurement-while-drilling device;
- measuring downhole input parameters with the measurement while drilling device;
- transmitting the measured downhole input parameters to a surface location through the inductive data transmitting drillstring;
- determining a downhole condition from the transmitted downhole input parameters;
- adjusting at least one component of the drilling tool assembly in response to the transmitted downhole input parameters.
Dependencies are inferred from the claim text.