Virtual downhole sub
AssigneeConocoPhillips Company
InventorsStacey C. Ramsay, Bradford L. Cobb, Phil D. Anno, Son V. Pham
Life of this patent
Estimating the term…
Abstract
A system and method to identify a dysfunction of a drill-string within a wellbore are provided. The system includes a sensor positioned proximate to a drill-string and proximate to a surface of the wellbore. The sensor is configured to sense a surface condition and generate measurement data. The system also includes a transmitter in communication with the sensor and configured to transmit the measurement data. The system also includes a receiver configured to receive the measurement data from the sensor. The system also includes a processor configured to calculate a downhole measurement based on the measurement data and analyze the downhole measurement to identify the dysfunction.
Claims20
A method to identify a dysfunction of a drill-string, the method comprising:
- sensing a surface condition of a wellbore using at least one sensor, the at least one sensor including a tri-axial accelerometer that senses a tri-axial acceleration of the drill-string;
- generating measurement data based on the surface condition of the wellbore, the measurement data including a tri-axial measurement generated based on the tri-axial acceleration;
- generating a downhole measurement based on the measurement data, the downhole measurement including a downhole tri-axial measurement generated using the tri-axial measurement;
- and
- identifying the dysfunction of the drill-string based on the downhole measurement.
A system to identify a dysfunction of a drill-string within a wellbore, the system comprising:
- at least one sensor sensing a surface condition of the wellbore and generating measurement data, the at least one sensor including a tri-axial accelerometer that senses a tri-axial acceleration of the drill-string and outputs a tri-axial measurement, the measurement data including the tri-axial measurement;
- a transmitter in communication with the at least one sensor, the transmitter transmitting the measurement data;
- a receiver receiving the measurement data from the transmitter;
- and
- at least one computing device in communication with the receiver, the at least one computing device calculating a downhole measurement based on the measurement data, the downhole measurement including a downhole tri-axial measurement calculated from the tri-axial measurement, the at least one computing device identifying the dysfunction of the drill-string within the wellbore based on the downhole measurement.
A system to identify a dysfunction of a drill-string within a wellbore, the system comprising:
- at least one sensor positioned at a surface of the wellbore, the at least one sensor sensing a surface condition of the wellbore and generating measurement data, the at least one sensor including a tri-axial accelerometer that senses a tri-axial acceleration of the drill-string and outputs a tri-axial measurement, the measurement data including the tri-axial measurement;
- and
- at least one computing device in communication with the at least one sensor, the at least one computing device calculating a downhole measurement based on the measurement data, the downhole measurement including a downhole tri-axial measurement calculated from the tri-axial measurement using a power loss model, the at least one computing device identifying the dysfunction based on the downhole measurement.
Dependencies are inferred from the claim text.