Granted Patent B2

US 7,672,785 · App. 11/691,031 · Granted Mar 2, 2010

Assignee: Key Energy Services, Inc.

Abstract

Claims (82)

1. A method for evaluating tubing data from at least one of a plurality of tubing segments at a wellsite comprising a well, comprising:

moving the plurality of tubing segments into or out of the well;

analyzing the tubing segments with a tubing scanner, said scanner generating a first signal associated with the condition of said tubing segments;

determining the location of a plurality of pipe collars;

determining the length of each tubing segment;

producing an analysis data chart based on the first signal and the location of the plurality of pipe collars;

producing a depth chart based on the location of the plurality of pipe collars and the length of each tubing segment;

overlaying the depth chart onto the analysis data chart for correlating a relative position of each tubing segment to the first signal; and

displaying the correlated tubing scanner data and tubing segment positional data.

2. The method of claim 1 , wherein said scanner comprises a sensor selected from a wall-thickness sensor, a rod-wear sensor, a collar locating sensor, a crack sensor, an imaging sensor or a pitting sensor.

3. The method of claim 1 further comprising locating the collars with a collar sensor.

4. The method of claim 1 , wherein the first signal is transmitted to a computing device.

5. The method of claim 1 wherein the length of the tubing segment is determined by correlating positional data from an encoder and the location of the collars.

6. The method of claim 1 wherein the length of tubing is input by an operator.

7. The method of claim 1 further comprising transmitting the correlated tubing scanner and tubing segment positional data to a location remote from the wellsite.

8. The method of claim 1 wherein the tubing segment positional data includes the depth of the tubing segments.

9. The method of claim 1 further comprising marking the first detected collar as zero depth.

10. The method of claim 1 wherein the tubing segment positional data includes the depth of the tubing segment in the well.

11. The method of claim 1 wherein the scanner data is used to evaluate the tubing segments for defects, integrity, wear, anomalous conditions, or fitness for continued service.

12. A method for evaluating tubing data from at least one of a plurality of tubing segments at a wellsite comprising a well, comprising:

accepting a standard output for a sensor when a pipe collar is scanned;

moving the plurality of tubing segments into or out of the well;

scanning the tubing segments with the sensor as the tubing segments are being moved into or out of the well;

receiving tubing data from the sensor;

evaluating the tubing data to determine the location of the plurality of pipe collars on the tubing segments based on a comparison to the standard output;

determining a length of each tubing segment;

correlating a relative position of each tubing segment to the tubing data; and

displaying the correlated tubing scanner data and tubing segment positional data on a display device.

13. The method of claim 12 , wherein the sensor is selected from a wall-thickness sensor, a rod-wear sensor, a collar locating sensor, a crack sensor, an imaging sensor, or a pitting sensor.

14. The method of claim 12 , wherein the tubing data is transmitted to a computing device.

15. The method of claim 12 , wherein the length of the tubing segment is determined by correlating positional data from an encoder and the location of the collars.

16. The method of claim 12 , wherein the length of the tubing segment is received at a computer at the wellsite.

17. The method of claim 12 further comprising the step of transmitting the correlated tubing scanner and tubing segment positional data to a location remote from the wellsite.

18. The method of claim 12 , wherein the tubing segment positional data comprises the depth of the tubing segments.

19. The method of claim 12 , wherein accepting the standard output for the sensor when the pipe collar is scanned comprises the step of calibrating the sensor to produce the standard output when the pipe collar is scanned.

20. The method of claim 12 further comprising the step of marking the first detected collar as zero depth.

21. The method of claim 12 further comprising the step of generating an analysis data chart based on the tubing data and the location of each of the plurality of pipe collars.

22. The method of claim 21 further comprising the step of generating a depth chart based on the location of the plurality of pipe collars and the length of each tubing segment.

23. The method of claim 22 further comprising the step of overlaying the depth chart onto the analysis data chart for correlating the relative position of each tubing segment to the tubing data.

24. A method for evaluating tubing data from at least one of a plurality of tubing segments at a wellsite comprising a well, comprising:

moving a plurality of tubing segments into or out of the well;

scanning the tubing segments with a sensor as the tubing segments are being moved into or out of the well;

receiving tubing data from the sensor;

generating a tubing data chart comprising the tubing data for at least a portion of the plurality of tubing segments;

determining a depth of each tubing segment within the well;

generating a depth chart comprising the depth of each tubing segment within the well;

generating a combined chart comprising an overlay of the depth chart onto the tubing data chart; and

displaying the combined chart on a display.

25. A method for calibrating data from a plurality of sensors disposed at different positions, for evaluating tubing from a well at a wellsite, comprising:

receiving a distance between a first sensor and a second sensor;

moving a plurality of tubing segments into or out of the well;

scanning the tubing segments with the first sensor as the tubing segments are being moved into or out of the well;

receiving a first data point from the first sensor;

scanning the tubing segments with the second sensor as the tubing segments are being moved into or out of the well;

receiving a second data point from the second sensor; and

determining a depth position for the second data point along the plurality of tubing segments, wherein the depth position comprises the depth of the tubing segments within the well;

calculating a depth position for the first data point based on the distance between the first sensor and the second sensor.

26. The method of claim 25 , wherein the first sensor is selected from a wall-thickness sensor, a rod-wear sensor, a crack sensor, an imaging sensor, or a pitting sensor.

27. The method of claim 25 , wherein the second sensor is a collar locating sensor.

28. The method of claim 25 , wherein the first and second sensors scan the tubing segments at substantially the same time.

29. The method of claim 25 , wherein determining the depth position for the second data point comprises receiving a depth position from an encoder.

30. A method for evaluating tubing from a well at a wellsite, comprising:

moving a plurality of tubing segments into or out of the well;

scanning the tubing segments with a sensor as the tubing segments are being moved into or out of the well;

receiving tubing scan data from the sensor;

accepting a first portion of the tubing scan data comprising data representing minimal damage to a portion of one of the tubing segments;

determining a first amplitude for at least a portion of the first portion of the tubing scan data;

receiving a multiplication factor; and

adjusting an amplitude of a display of the tubing scan data based on the first amplitude and the multiplication factor.

31. The method of claim 30 further comprising the steps of:

accepting a second portion of the tubing scan data comprising data representing a pipe collar on a portion of one of the tubing segments, the second portion of the tubing scan data comprising a second amplitude; and

comparing the second amplitude to the amplitude of the display.

32. The method of claim 31 further comprising the step of decreasing the amplitude of the display based on a determination that the second amplitude is less than the amplitude of the display.

33. The method of claim 31 further comprising the step of generating an alarm that the tubing scan data from the sensor comprises an unacceptable noise level based on a determination that the second amplitude is greater than the amplitude of the display.

34. The method of claim 31 further comprising the step of adjusting a noise level of the tubing scan data from the sensor based on a determination that the second amplitude is greater than the amplitude of the display.

35. A method for evaluating tubing data from at least one of a plurality of tubing segments at a wellsite comprising a well, comprising:

moving the plurality of tubing segments into or out of the well;

analyzing the tubing segments with a tubing scanner, said scanner generating a first signal associated with the condition of said tubing segments;

determining the location of a plurality of pipe collars;

determining the length of each tubing segment;

correlating a relative position of each tubing segment to the first signal; and

displaying the correlated tubing scanner data and tubing segment positional data, wherein the scanner data is used to evaluate the tubing segments for defects, integrity, wear, anomalous conditions, or fitness for continued service.

Assignments (12)

Continuity (2)