SOFTWARE-BASED QUALITY CONTROL ANALYSIS OF WELL LOG DATA

• US 20080133137A1
• Filed: 06/28/2007
• Published: 06/05/2008
• Est. Priority Date: 12/05/2006
• Status: Active Grant

• Current Assignee: Landmark Graphics Corporation (Halliburton Company)
• Original Assignee: Landmark Graphics Corporation (Halliburton Company)
• Inventors: Tatro, Matthew N.
• Granted Patent: US 7,739,050 B2
• Time in Patent Office: Days
• US Class Current: 702/6
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 50/02 Agriculture; Fishing; Forestry; Mining

Abstract

Software-based quality control analysis of well log data. At least some of the various embodiments are computer-readable mediums storing a program that, when executed by a processor, causes the processor to read data from a well log, and perform a quality control analysis on the data.

Claims

1. A computer-readable medium storing a program that, when executed by a processor, causes the processor to:

read data from a well log; and

perform a quality control analysis on the data.

2. The computer-readable medium as defined in claim 1 wherein when the processor reads data the program causes the processor to:

read the data in a first standard; and

convert at least a portion of the data to a second standard.

3. The computer-readable medium as defined in claim 2 wherein when the processor reads the data in the first standard the program causes the processor to read data having one or more file formats selected from the group consisting of:

Log ASCII Standard (LAS);

Log Information Standard (LIS);

or digital LIS (DLIS).

4. The computer-readable medium as defined in claim 2 wherein when the processor converts the data to a second standard, the program causes the processor to convert the data to extensible markup language (XML) format.

5. The computer-readable medium as defined in claim 1 wherein when the processor performs the quality control analysis, the program causes the processor to:

access a rules file; and

test whether the data is in conformance with rules from the rules file.

6. The computer-readable medium as defined in claim 5 wherein when the processor accesses the rules file, the program causes the processor to access the rules file coded in extensible markup language (XML) format.

7. The computer-readable medium as defined in claim 5 wherein when the processor tests whether the data is in conformance with rules from the rules file, the program causes the processor to one or more selected from the group consisting of:

check whether the well operator is listed;

check whether the company that performed the well log is listed;

check whether the geographic coordinates of the well are listed;

check whether the geographic coordinates of the well are in a prescribed format;

check whether units of measure of data points are in a prescribed format;

check for the presence of mandatory values;

check whether an indication exists for use of oil-based drilling fluid;

or check whether top and bottom depth values in header information correspond to top and bottom depth values in log data.

8. The computer-readable medium as defined in claim 1 wherein the program further causes the processor to generate an error report if shortcomings exist in the data.

9. The computer-readable medium as defined in claim 1 wherein the program further causes the processor to places values from the data in a database.

10. The computer-readable medium as defined in claim 9 wherein when the processor places values in the database, the program causes the processor to place header values and errors found in the quality control process in the database.

11. The computer-readable medium as defined in claim 1 wherein the program further causes the processor to correct at least one error identified in the data during the quality control analysis.

12. A computer system comprising:

a processor; and

a memory coupled to the processor;

wherein the processor reads data from a well log, and the processor performs a quality control analysis on the data.

13. The computer system as defined in claim 12 wherein when the processor reads data the processor is further configured to:

read the data in a first standard; and

convert at least a portion of the data to a second standard.

14. The computer system as defined in claim 13 wherein when the processor reads the data in the first standard the processor reads data having one or more file formats selected from the group consisting of:

Log ASCII Standard (LAS);

Log Information Standard (LIS);

or digital LIS (DLIS).

15. The computer system as defined in claim 13 wherein when the processor converts the data to a second standard, the processor converts the data to extensible markup language (XML) format.

16. The computer system as defined in claim 12 wherein when the processor performs the quality control analysis, the processor is further configured to:

access a rules file; and

test whether the data is in conformance with rules from the rules file.

17. The computer system as defined in claim 16 wherein when the processor accesses the rules file, the processor accesses the rules file coded in extensible markup language (XML) format.

18. The computer system as defined in claim 12 wherein the processor generates an error report if shortcomings exist in the data.

19. The computer system as defined in claim 12 wherein processor places values from the data in a database.

20. The computer system as defined in claim 12 wherein the processor corrects at least one error identified in the data during the quality control analysis.