Well-log presentation, software and method thereof

• US 20030154029A1
• Filed: 02/08/2002
• Published: 08/14/2003
• Est. Priority Date: 02/08/2002
• Status: Active Grant

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Metrick, Lee B.
• Granted Patent: US 6,654,691 B2
• Time in Patent Office: Days
• US Class Current: 702/6
• CPC Class Codes: G01V 1/34 Displaying seismic recordings or visualisation of seismic data or attributes
• CPC Class Codes: G01V 1/40 specially adapted for well-logging

Abstract

A well-log display (160) having a principle axis (135) matched to a deviation of a section of a well-bore (450) is disclosed. By presenting a well-log (160) at about the same angle as the section of the well-bore under consideration, a person viewing the well-log (160) will have the advantage of easily visualizing the inclination of the well-bore (450) to aid in geo-steering, proper interpretation of well-bore measurements, etc. Such a well-log (160) may be presented as a hardcopy or as an interactive display on a computer screen (642). A presentation (100, 200) of a well-log (160) may include more than just the log itself, for example, a reference diagram (100, 200) of the entire well highlighting (130) or otherwise indicating the part of the well currently being displayed in the well-log.

Claims

1. A method of displaying well-logging data, the method comprising the steps of:

determining a deviation of a section of a well-bore; and

presenting a well-log of the section of the well-bore, the well-log having a principle axis matched to the deviation of the section of the well-bore.

2. The method as in claim 1, further including the steps of:

obtaining user input; and

selecting the principle axis of the well-log based on the user input.

3. The method as in claim 1, further including the steps of:

obtaining deviation information from a data file; and

determining the deviation based at least in part on the information from the data file.

4. The method as in claim 3, wherein the data file is selected from the group consisting of a drilling survey, a wireline log file, a tubing conveyed instrument file, a logging-while-drilling file, a measurement-while-drilling file, an interpretation file, and a well modeling file.

5. The method as in claim 1, further including the steps of:

obtaining deviation information as the deviation information is acquired; and

determining the deviation of the section of the well-bore based at least in part on the deviation information obtained during acquisition.

6. The method as in claim 1, wherein the step of presenting the well-log includes the steps of:

displaying the well-log on a screen;

obtaining user input associated with the displayed well-log; and

altering the display based on the user input.

7. The method as in claim 6, further including the steps of:

displaying a well diagram on the screen; and

emphasizing a portion of the well diagram corresponding to the section of the well-bore displayed in the well-log.

8. The method as in claim 7, further including the steps of:

altering, based at least in part on the user input, the portion of the well diagram emphasized; and

altering the well-log to display the section of the well-bore corresponding to the emphasized portion of the diagram.

9. The method as in claim 1, wherein the step of determining a deviation includes the step of projecting the section of the well-bore onto a projection plane.

10. The method as in claim 9, wherein the step of projecting the section of the well-bore onto a projection plane includes determining an orientation of the projection plane based on a vector drawn from a first point in the well-bore to a second point in the well-bore.

11. A well-log presentation of a section of a well-bore, said well-log presentation including a well-log having a principle axis matched to a deviation of the section of the well-bore.

12. The well-log presentation as in claim 11, wherein said well-log presentation includes a well-log displayed on a screen.

13. The well-log presentation as in claim 12, wherein the principle angle of said well-log is adjustable based on user input.

14. The well-log presentation as in claim 12, wherein said well-log presentation further includes:

a well diagram having an emphasized portion corresponding to the section of the well-bore displayed in the well-log.

15. The well-log presentation as in claim 12, wherein said emphasized portion is movable in response to user input such that when said emphasized portion is moved over a particular section of the well diagram, the well-log displays the section of the well-bore corresponding to the emphasized portion of the diagram.

16. The well-log presentation as in claim 11, wherein said well-log presentation includes a hardcopy.

17. A computer readable medium tangibly embodying a program of instructions, said program of instructions including instructions to:

determine a deviation of a section of a well-bore; and

present a well-log of the section of the well-bore, the well-log having a principle axis matched to the deviation of the section of the well-bore.

18. The computer readable medium as in claim 17, wherein said program of instructions further includes instructions to:

obtain user input; and

select the principle axis of the well-log based on the user input.

19. The computer readable medium as in claim 17, wherein said program of instructions further includes instructions to:

obtain deviation information from a data file; and

determine the deviation based at least in part on the information from the data file.

20. The computer readable medium as in claim 19, wherein the data file is selected from the group consisting of:

a drilling survey, a wireline log file, a tubing conveyed instrument file, a logging-while-drilling file, a measurement-while-drilling file, an interpretation file, and a well modeling file.

21. The computer readable medium as in claim 17, wherein said program of instructions further includes instructions to:

obtain deviation information as the deviation information is acquired; and

determine the deviation based at least in part on the information obtained during acquisition.

22. The computer readable medium as in claim 17, wherein said instructions to present a well-log include instructions to:

display the well-log on a screen;

obtain user input associated with the displayed well-log; and

alter the displayed well-log based on the user input.

23. The computer readable medium as in claim 22, wherein said program of instructions further includes instructions to:

display a well diagram on the screen; and

emphasize a portion of the well diagram corresponding to the section of the well-bore displayed in the well-log.

24. The computer readable medium as in claim 23, wherein said program of instructions further includes instructions to:

alter, based at least in part on the user input, the portion of the well diagram emphasized; and

alter the well-log such that the section of the well-bore corresponding to the emphasized portion of the diagram is displayed.

25. The computer readable medium as in claim 17, wherein said instructions to determine a deviation of the well-bore include instructions to project the section of the well-bore onto a projection plane.

26. The computer readable medium as in claim 25, wherein said instructions to project the section of the well-bore onto the projection plane include instructions to determine an orientation of the projection plane based on a vector drawn from a first point in the well-bore to a second point in the well-bore.