Software-based quality control analysis of well log data

• US 7,739,050 B2
• Filed: 06/28/2007
• Issued: 06/15/2010
• 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.
• Primary Examiner(s): Lau; Tung S
• Application Number:
  US11/770,184
• Publication Number:
  US 20080133137A1
• Time in Patent Office: 1,083 Days
• Field of Search: 702/6
• 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 storage medium storing a program that, when executed by a processor, causes the processor to:

read from a database well log data in a first file format standard;

convert at least a portion of the well log data in the first file format standard to a second file format standard; and

perform a quality control analysis on the data converted to the second file format standard.

2. The computer-readable storage medium as defined in claim 1 wherein when the processor reads the data in the first file format 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).

3. The computer-readable storage medium as defined in claim 1 wherein when the processor converts the data to a second file format standard, the program causes the processor to convert the data to extensible markup language (XML) format.

4. The computer-readable storage 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.

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

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

7. The computer-readable storage 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.

8. The computer-readable storage medium as defined in claim 4 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.

9. The computer-readable storage medium as defined in claim 4 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.

10. The computer-readable storage medium as defined in claim 6 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. A computer system comprising:

a processor; and

a memory coupled to the processor;

wherein the processor reads from a database well log data in a well log data file format standard;

converts at least a portion of the well log data in the well log data file format standard to a markup language file format standard; and

performs a quality control analysis on the well log data converted to the markup language the format standard.

12. The computer system as defined in claim 11 wherein when the processor reads the data in the well log data file format 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).

13. The computer system as defined in claim 11 wherein when the processor converts the data to the markup language file format standard, the processor converts the data to extensible markup language (XML) format.

14. The computer system as defined in claim 11 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.

15. The computer system as defined in claim 11 wherein the processor generates an error report if shortcomings exist in the data.

16. The computer system as defined in claim 11 wherein processor places values from the data in a database.

17. The computer system as defined in claim 11 wherein the processor corrects at least one error identified in the data during the quality control analysis.

18. The computer system as defined in claim 14 wherein when the processor accesses the rules file, the processor accesses the rules file coded in extensible markup language (XML) format.