Method and system for predicting performance of a drilling system for a given formation
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Abstract
A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specifications of proposed drilling equipment for use in the drilling of the well bore, and predicting a drilling mechanics in response to the specifications as a function of the geology characteristic per unit depth according to a prescribed drilling mechanics model. Responsive to a predicted drilling mechanics, a controller controls a parameter in the drilling of the well bore. The geology characteristic includes at least rock strength. The specifications include at least a bit specification of a recommended drill bit. Lastly, the predicted drilling mechanics include at least one of bit wear, mechanical efficiency, power, and operating parameters. A display is provided for generating a display of the geology characteristic and predicted drilling mechanics per unit depth, including either a display monitor or a printer.
121 Citations
93 Claims
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1-50. -50. (canceled)
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51. An apparatus for predicting the performance of a drilling system comprising:
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first input device for receiving data representative of a geology characteristic of a formation per unit depth, the geology characteristic including at least rock strength;
second input device for receiving data representative of specifications of proposed drilling equipment of the drilling system for use in drilling of a well bore in the formation, the specifications including at least a specification of a drill bit; and
processor operatively connected to said first and second input devices for determining a predicted drilling mechanics in response to the specifications data of the proposed drilling equipment as a function of the geology characteristic data per unit depth according to a drilling mechanics model and outputting data representative of the predicted drilling mechanics, the predicted drilling mechanics including at least one selected from the group consisting of bit wear, mechanical efficiency, power, and operating parameters. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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70. A method for predicting the performance of a drilling system comprising:
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receiving data representative of a geology characteristic of a formation per unit depth, the geology characteristic including at least rock strength;
receiving data representative of specifications of proposed drilling equipment of the drilling system for use in drilling a well bore in the formation, the specifications including at least a specification of a drill bit; and
determining a predicted drilling mechanics in response to the specifications data of the proposed drilling equipment as a function of the geology characteristic data per unit depth according to a drilling mechanics model and outputting data representative of the predicted drilling mechanics, the predicted drilling mechanics including at least one selected from the group consisting of bit wear, mechanical efficiency, power, and operating parameters. - View Dependent Claims (71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81)
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82. A computer program stored on a computer-readable medium for execution by a computer for predicting the performance of a drilling system, said computer program comprising:
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instructions for receiving data representative of a geology characteristic of a formation per unit depth, the geology characteristic including at least rock strength;
instructions for receiving data representative of specifications of proposed drilling equipment for use in drilling of a well bore in the formation, the specifications including at least a specification of a drill bit; and
instructions for determining a predicted drilling mechanics in response to the specifications data of the proposed drilling equipment as a function of the geology characteristic per unit depth according to a drilling mechanics model and outputting data representative of the predicted drilling mechanics, the predicted drilling mechanics including at least one selected from the group consisting of bit wear, mechanical efficiency, power, and operating parameters. - View Dependent Claims (83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
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Specification