Method and system for pore pressure prediction

Data processing: structural design – modeling – simulation – and em – Simulating nonelectrical device or system – Fluid

Reexamination Certificate

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Reexamination Certificate

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07996199

ABSTRACT:
A method for performing an oilfield operation at a wellsite having a drilling rig configured to advance a drilling tool into a subsurface formation. The method includes generating a borehole temperature model for an area of interest using water depth information and a vertical stress model, generating a formation temperature model using the borehole temperature model, generating a mud-weight pressure model using the formation temperature model and pressure coefficients, generating a formation pore pressure model using the mud-weight pressure model, and adjusting the oilfield operation based on the formation pore pressure model.

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Bowers, G. L.: “Pore Pressure Estimation from Velocity Data: Accounting for Overpressure Mechanisms Besides Undercompensation,” SPE Drilling and Completion, 1995, pp. 89-95, 8 pages.
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International Search Report dated Jan. 15, 2008 (3 pages).

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