Virtual downhole sub

Patent metadata

Field	Value
Publication number	US-11414977-B2
Application number	US-201916363408-A
Country	US
Kind code	B2
Filing date	Mar 25, 2019
Priority date	Mar 23, 2018
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

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.

First claim

What is claimed is:

1. A method for to identify a dysfunction identification for a drill-string deployed in a wellbore, the method comprising:
virtually positioning a virtual sub at a distance from at least one of the drill-string or the wellbore;
sensing a surface condition of a wellbore, the surface condition of the wellbore captured using at least one sensor positioned at a surface of the wellbore, 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 using the virtual sub and without using any equipment positioned below the surface of the wellbore, the downhole measurement including a downhole tri-axial measurement generated using the tri-axial measurement of the measurement data generated based on the surface condition of the wellbore
identifying a dysfunction of the drill-string based on the downhole measurement, the dysfunction represented as a visualization with a graphical user interface, the visualization including a first spacing between a plurality of visual representations representing a drill rotation of the drill-string and a second spacing between the plurality of visual representations representing a drill angle of the drill-string; and
performing, in response to the dysfunction, stick-slip mitigation by controlling a top drive revolutions per minute (RPM)s.

2. The method of claim 1 , wherein the measurement data further includes a torque measurement.

3. The method according of claim 2 , wherein the downhole measurement further includes a downhole torque measurement generated based on the torque measurement.

4. The method of claim 1 , wherein the downhole measurement is generated based on the measurement data using a power loss model.

5. The method of claim 4 , wherein the distance is a fixed distance from the surface of the wellbore and the downhole measurement is calculated at the fixed distance using the power loss model.

6. The method of claim 4 , wherein the distance is a fixed distance from a drill bit of the drill-string and the downhole measurement is calculated at the fixed distance using the power loss model.

7. The method of claim 1 , further comprising:
wirelessly transmitting the measurement data from a transmitter to a receiver.

8. The system of claim 1 wherein performing the stick-slip mitigation is based on receiving an operator input activating stick-slip mitigation control.

9. A system for dysfunction identification for 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 capturing a surface condition of the wellbore, wherein measurement data is generated based on the surface condition of the wellbore, the at least one sensor including a tri-axial accelerometer that captures 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;
at least one computing device in communication with the receiver, the at least one computing device virtually positioning a virtual sub at a distance from at least one of the wellbore or the drill-string, the at least one computing device calculating a downhole measurement based on the measurement data using the virtual sub and without using any equipment positioned below the surface of the wellbore, the downhole measurement including a downhole tri-axial measurement calculated from the tri-axial measurement of the measurement data generated based on the surface condition of the wellbore, the at least one computing device identifying the dysfunction of the drill-string within the wellbore based on the downhole measurement; and
a display displaying a graphical user interface, the graphical user interface generated based on the downhole measurement and using the at least one computing device, the graphical user interface displaying a visualization of the dysfunction using a selection between a two-dimensional visualization or a three-dimensional visualization, the graphical user interface displaying a first spacing between a plurality of visual representations representing a drill rotation of the drill-string and a second spacing between the plurality of visual representations representing a drill angle of the drill-string.

10. The system of claim 9 , further comprising:
a surface sub housing the at least one sensor and the transmitter and positioned proximate to the surface of the wellbore.

11. The system of claim 10 , wherein the surface sub is positioned below a top drive of the drill-string.

12. The system of claim 9 , further comprising:
a controller controlling the drill-string by modifying one or more drilling parameters based on the dysfunction.

13. The system of claim 9 , wherein the virtual sub is positioned at the distance using a power loss model.

14. The system of claim 13 , wherein the downhole measurement is calculated at the distance using the power loss model.

15. The system of claim 9 , wherein the plurality of visual representations is a plurality of dots and the second spacing is a concentric spacing.

16. The system of claim 9 , wherein the graphical user interface displays an indication of whether a stick-slip mitigation is engaged or disengaged.

17. The system of claim 9 , wherein the graphical user interface displays a center portion representing the dysfunction and one or more minimized portions around the center portion representing the measurement data.

18. A system for a dysfunction identification for a drill-string within a wellbore, the system comprising:
at least one sensor positioned at a surface of the wellbore separate from and within a five-foot radius of the drill-string, the at least one sensor capturing a surface condition of the wellbore, wherein measurement data is generated based on the surface condition of the wellbore, 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 virtually positioning a virtual sub at a distance from at least one of the wellbore or the drill-string, the at least one computing device calculating a downhole measurement based on the measurement data using the virtual sub and without using any equipment positioned below the surface of the wellbore, the downhole measurement including a downhole tri-axial measurement calculated from the tri-axial measurement of the measurement data generated based on the surface condition of the wellbore using a power loss model, the at least one computing device identifying a dysfunction based on the downhole measurement, the dysfunction represented as a visualization with a graphical user interface, the visualization including a first spacing between a plurality of visual representations representing a drill rotation of the drill-string and a second spacing between the plurality of visual representations representing a drill angle of the drill-string.

19. The syste

Assignees

• Conocophillips Co

Inventors

• Ramsay Stacey C
• Cobb Bradford L
• Anno Phil D
• Pham Son V

Classifications

• E21B47/12

  Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling · CPC title

• E21B44/04 Primary

  in response to the torque of the drive {; Measuring drilling torque (E21B44/06 takes precedence; measuring stresses in a well bore pipe E21B47/007)} · CPC title

• G06F3/04817

  using icons (graphical or visual programming using iconic symbols G06F8/34) · CPC title

• G01P15/18

  in two or more dimensions · CPC title

• E21B44/00 Primary

  Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions · CPC title