Optical imaging and assessment system for tong cassette positioning device

Patent metadata

Field	Value
Publication number	US-10366507-B2
Application number	US-201715681141-A
Country	US
Kind code	B2
Filing date	Aug 18, 2017
Priority date	Aug 18, 2017
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A method and apparatus for optical imaging and assessment of tong cassette positioning devices, including identifying a focus area on a tong cassette; optically imaging the focus area with an optical imaging device on a positioning device; and analyzing information from the optical imaging to determine an assessment of the focus area. A system includes: a tong cassette having a focus area; a positioning device having an optical imaging device to image the focus area; and an analyzing device functionally connected to the optical imaging device to receive information therefrom.

First claim

The invention claimed is:

1. A method comprising:
identifying a focus area on a tong cassette coupled to a tong;
optically imaging the focus area using an optical imaging device on a positioning device;
analyzing information from the optical imaging to determine an assessment of the focus area; and
causing action based on the analyzing, wherein the action comprises at least one selected from the group of extending a plurality of arms of the positioning device, connecting the positioning device to the tong cassette, and locking the tong cassette in the arms of the positioning device.

2. The method of claim 1 , wherein the optical imaging device comprises at least one of a high resolution infrared camera and a time-of-flight camera.

3. The method of claim 1 , wherein the focus area is a first focus area, and further comprising:
identifying a second focus area on the tong cassette;
optically imaging the second focus area with the optical imaging device; and
analyzing information from each of the optical imagings.

4. The method of claim 3 , wherein the first and second focus areas are different.

5. The method of claim 1 , further comprising:
iteratively optically imaging the focus area; and
analyzing information from each of the optical imagings.

6. The method of claim 1 , wherein the assessment is selected from the group consisting of distance between the tong cassette and the positioning device, and relative orientation between the tong cassette and the positioning device.

7. The method of claim 1 , further comprising iteratively:
identifying an nth focus area on the tong cassette;
optically imaging the nth focus area with the optical imaging device;
analyzing information from the optical imaging to determine an nth assessment of the nth focus area; and
causing an nth action based on the analyzing.

8. The method of claim 7 , wherein the focus area does not change from one iteration to the next.

9. The method of claim 1 , wherein at least one of an identification tag and a target is visible in the focus area.

10. The method of claim 1 , wherein the optical imaging the focus area comprises capturing a series of images over time.

11. The method of claim 1 , further comprising moving the tong cassette from a first position to a second position.

12. A system comprising:
a tong cassette having a focus area, wherein the tong cassette is coupled to a tong;
a positioning device having an optical imaging device configured to image the focus area;
an analyzing device functionally connected to the optical imaging device to receive information therefrom; and
an actuator capable of receiving commands from the analyzing device.

13. The system of claim 12 , wherein the optical imaging device comprises at least one of a high resolution infrared camera and a time-of-flight camera.

14. The system of claim 12 , wherein the analyzing device is configured to determine a distance between the tong cassette and the positioning device, a relative orientation between the tong cassette and the positioning device, or both.

15. The system of claim 12 , wherein the actuator is configured to cause one or more actions selected from the group consisting of extending a plurality of arms of the positioning device, connecting the positioning device to the tong cassette, and locking the tong cassette in the arms of the positioning device.

16. The system of claim 12 , wherein at least one of an identification tag and a target is visible in the focus area.

17. The system of claim 12 , wherein the positioning device is configured to move the tong cassette from a first position to a second position.

18. An optical imaging and assessment system for use with a positioning device and a tong cassette, the system comprising:
an optical imaging device located on the positioning device;
a tong coupled to the tong cassette;
a focus area on the tong cassette, wherein the optical imaging device is positioned to capture an optical image of the focus area; and
a local controller located on the positioning device and functionally connected to the optical imaging device.

19. The system of claim 18 , wherein the optical imaging device comprises one of a light source to emit energy towards the focus area and a micro controller.

20. The system of claim 18 , further comprising a remote controller located remotely from the positioning device and the tong cassette.

21. The system of claim 18 , wherein the positioning device has arms configured to extend and engage the tong cassette.

22. The system of claim 21 , wherein the positioning device is configured to move the tong cassette from a first position to a second position.

Assignees

• Weatherford Tech Holdings Llc

Inventors

• Amezaga Federico
• HEBEBRAND Christina Karin
• Wern Frank

Classifications

• G06T7/73

  using feature-based methods · CPC title

• G06T2207/10028

  Range image; Depth image; 3D point clouds · CPC title

• E21B19/164

  motor actuated (E21B19/162 and E21B19/163 take precedence) · CPC title

• E21B19/00 Primary

  Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables · CPC title

• G06T2207/10048

  Infrared image · CPC title