Formation pressure determination method, determination device, processor and determination system

Abstract

The invention provides a formation pressure determination method and device, a processor and a determination system, and the method comprises the steps: obtaining a first formation pressure which is a target formation pressure of a drilled well corresponding to a preset historical moment; calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure of a corresponding new well after the new well is drilled at a preset historical moment; third formation pressure is determined according to the multiple second formation pressures, the third formation pressure is target formation pressure corresponding to the new well after the new well is drilled at the preset moment, preset historical moments corresponding to the multiple second formation pressures are different, all strata of the new well serve as target strata in sequence, and pressure of all strata of the new well at the preset moment is determined in sequence; the problem that the pressure of each stratum of a new well is difficult to predict in the prior art is solved.

Description

technical field [0001] The present application relates to the technical field of formation pressure prediction, and in particular, relates to a formation pressure determination method, determination device, computer-readable storage medium, processor and determination system. Background technique [0002] The pressure control is very important during the drilling process. If the bottom hole pressure is lower than the formation pressure, the formation fluid will enter the wellbore. If the pressure is greater than the formation pressure, a large amount of drilling fluid will enter the reservoir, resulting in contamination of the reservoir; if the bottom hole pressure is greater than the fracture pressure of the formation, it will lead to lost circulation, resulting in a large loss of drilling fluid, and even "leakage to blowout". At the same time, with the increase of mining time, the pressure of the reservoir decreases continuously, which increases the inhomogeneity of reserv...

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Problems solved by technology

[0005] The main purpose of this application is to provide a method for determining formation pressure, a determination device, a computer-readable storage medium, a processor and a determination system, so as to solve the problem that the formation pressure of new wells is difficult to predict in the prior art

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