Method and system for predicting formation pore pressure based on exponential constraint
2018
The invention belongs to the field of oil and gas geophysical exploration, and discloses a method and system for predicting formation pore pressure based on exponential constraint. According to the method, the hypotheses of the Fillipone formula and the Eaton model method are unified, and a novel formation pore pressure prediction formula (an exponential constraint formula) is constructed in an exponential constraint mode to perform formation pore pressure prediction. According to the method and system for predicting formation pore pressure based on exponential constraint, the step of establishing a normal compaction trend line is omitted, the problem of poor regional adaptability in the Fillippone formula method is solved, the method has the advantages of the Fillippone formula method andthe Eaton model method, the application range is broadened, and the accuracy of the formation pore pressure prediction result is improved.
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