Well Construction Management and Decision Support System
AssigneeSchlumberger Technology Corporation
InventorsGinger Vinyard Hildebrand, Chunling Gu Coffman, Rustam Isangulov
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Abstract
A method for wellbore construction management includes measuring at least one drilling operating parameter during drilling of a wellbore. At least one well state parameter is calculated from the measured drilling operating parameter. A difference between the calculated well state parameter and a predetermined value of the well state parameter is determined. When the difference exceeds a selected threshold a modified well plan is calculated comprising at least one drilling task to enable construction of at least part of the wellbore to conform to the modified well plan. The at least one drilling task is displayed to a user.
Claims38
A well construction management and decision support system, comprising:
- a computer system configured to accept as input signal from a sensor measuring at least one drilling operating parameter of a wellbore being drilled through subsurface formations, the computer system configured to accept as input a predetermined configuration of the wellbore when completed, the computer system configured to calculate at least one wellbore state parameter from the at least one drilling operating parameter and predetermined well state parameters from the predetermined configuration;
- and
- wherein the computer system is configured to calculate a difference between the calculated at least one wellbore state parameter from a predetermined value of the at least one wellbore state parameter during well construction and when the difference exceeds a selected threshold calculate at least one modified well construction task to cause at least part of the wellbore to conform to the predetermined well configuration.
A method for wellbore construction management, comprising:
- measuring at least one drilling operating parameter during drilling of a wellbore;
- calculating in a computer at least one well state parameter from the measured drilling operating parameter;
- in the computer, calculating a difference between the calculated well state parameter and a predetermined value of the well state parameter, the predetermined well state parameter calculated from an initial well plan;
- wherein when the difference exceeds a selected threshold calculating in the computer a modified well plan comprising at least one task to enable construction of at least part of the wellbore to conform to the modified well plan;
- and
- displaying the at least one task to a user.
Dependencies are inferred from the claim text.