METHOD OF REAL-TIME DRILLING SIMULATION

• US 20070185696A1
• Filed: 02/02/2007
• Published: 08/09/2007
• Est. Priority Date: 02/06/2006
• Status: Abandoned Application

• Current Assignee: Smith International Incorporated (SLB)
• Original Assignee: Smith International Incorporated (SLB)
• Inventors: Oliver, Stuart R., Paez, Luis C., Huang, Sujian J., Moran, David P., Yan, Lei
• Application Number:
  US11/670,696
• Publication Number:
  US 20070185696A1
• Time in Patent Office: Days
• US Class Current: 703/10
• CPC Class Codes: E21B 2200/22 Fuzzy logic, artificial intelligence, neural networks or the like
• CPC Class Codes: E21B 44/00 Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
• CPC Class Codes: G05B 13/027 using neural networks only

Abstract

A method of optimizing drilling including identifying design parameters for a drilling tool assembly, preserving the design parameters as experience data, and training at least one artificial neural network using the experience data. The method also includes collecting real-time data from the drilling operation, analyzing the real-time data with a real-time drilling optimization system, and determining optimal drilling parameters based on the analyzing the real-time date with the real-time drilling optimization system. Also, a method for optimizing drilling in real-time including collecting real-time data from a drilling operation and comparing the real-time data against predicted data in a real-time optimization system, wherein the real-time optimization includes at least one artificial neural network. The method further includes determining optimal drilling parameters based on the comparing the real-time data with the predicted data in the real-time drilling optimization system.

Claims

1. A method for optimizing drilling comprising:

identifying design parameters for a drilling tool assembly;

preserving the design parameters as experience data;

training at least one artificial neural network using the experience data;

collecting real-time data from the drilling operation;

analyzing the real-time data with a real-time drilling optimization system; and

determining optimal drilling parameters based on the analyzing the real-time data with the real-time drilling optimization system.

2. The method of claim 1, wherein the identifying design parameters comprises:

simulating a dynamic response of the drilling tool assembly;

3. The method of claim 1, wherein the design parameters comprise at least one of a group consisting of drill string design parameters, bottom hole assembly design parameters, and drill bit design parameters.

4. The method of claim 1, wherein the at least one artificial neural network is selected from at least one of a group of artificial neural networks consisting of vibrational, bit wear, and rate of penetration.

5. The method of claim 1, wherein the experience data comprises previously acquired data.

6. The method of claim 5, wherein the previously acquired data comprises historical bit run data.

7. The method of claim 1, further comprising:

predicting a drilling performance parameter based on the optimal drilling parameters.

8. The method of claim 7, wherein the drilling performance parameter is one of a group consisting of rate of penetration, rotary torque, rotary speed, weight on bit, lateral force on bit, ratio of forces on cones, ration of forces between cones, distribution of forces on cutting elements, volume of formation cut, well path maintenance, and wear on cutting elements.

9. The method of claim 1, further comprising:

adjusting the drilling operation according to the determined optimal drilling parameters.

10. The method of claim 8, wherein the adjusting comprises adjusting at least one of a weight on bit, mud flow rate, and a rotary speed.

11. The method of claim 1, wherein the real-time drilling optimization system comprises at least one artificial neural network.

12. The method of claim 1, wherein the at least one artificial neural network is selected from at least one of a group of artificial neural networks consisting of vibrational, bit wear, and rate of penetration.

13. The method of claim 1, wherein the experience data is stored in a data store.

14. The method of claim 13, wherein the experience data stored in the data store comprises alternative formation information.

15. The method of claim 14, wherein the alternative formation information comprises information from a material sample collected from a first formation segment.

16. A method for optimizing drilling in real-time comprising:

collecting real-time data from a drilling operation;

comparing the real-time data against predicted data in a real-time optimization system, wherein the real-time optimization system comprises at least one artificial neural network; and

determining optimal drilling parameters based on the comparing the real-time data with the predicted data in the real-time drilling optimization system.

17. The method of claim 16, wherein the at least one artificial neural network is selected from at least one of a group of artificial neural networks consisting of vibrational, bit wear, and rate of penetration.

18. The method of claim 16, further comprising:

collecting experience data.

19. The method of claim 18, wherein the experience data comprises data selected from at least one of a group of data consisting of data generated from drilling tool assembly design and historical bit run data.

20. The method of claim 16, wherein the real-time optimization system comprises a training artificial neural network.

21. The method of claim 20, wherein the training artificial neural network trains at least one artificial neural network.

22. A method for optimizing drilling in real-time comprising:

collecting real-time data from a first segment of a bit run;

inputting the real-time data into a real-time optimization system, wherein the real-time optimization system comprises at least one artificial neural network;

analyzing the real-time data from the first segment with the real-time drilling optimization system; and

determining optimal drilling parameters for a second segment of the bit run with the real-time drilling optimization system based on the analyzing the real-time data from the first segment.

23. The method of claim 22, wherein the at least one artificial neural network is selected from at least one of a group of artificial neural networks consisting of vibrational, bit wear, and rate of penetration.

24. The method of claim 22, further comprising:

predicting a drilling performance parameter based on the optimal drilling parameters.

25. The method of claim 24, wherein the drilling performance parameter is one of a group consisting of rate of penetration, rotary torque, rotary speed, weight on bit, lateral force on bit, ratio of forces on cones, axial force on cones, torsional force on cones, ratio of forces between cones, distribution of forces on cutting elements, volume of formation cut, and wear on cutting elements.

26. The method of claim 22, further comprising:

adjusting a drilling operation according to the determined optimal drilling parameters.

27. The method of claim 26, wherein the adjusted optimal drilling parameter is one of a group consisting of rate of penetration, rotary torque, rotary speed, weight on bit, lateral force on bit, ratio of forces on cones, ration of forces between cones, distribution of forces on cutting elements, volume of formation cut, and wear on cutting elements.