Automated analysis of pressure data

A method for delineating and interpreting a spatial distribution of fluid bodies within a reservoir that combines domain expert knowledge and knowledge of measurement uncertainties with pressure measurement data, the method comprising:

• constructing a pressure model of pressure, at a given depth in a given well, as a function of a pressure gradient at the given depth, an in-well depth measurement uncertainty, a between-well depth measurement uncertainty, an in-well pressure measurement uncertainty, and a between-well pressure measurement uncertainty;
• choosing a prior distribution of the pressure gradient, the between-well pressure measurement uncertainty, and the between-well depth measurement uncertainty, wherein the choosing is based on the domain expert knowledge associated with the reservoir and the knowledge of the measurement uncertainties;
• measuring the pressure measurement data, wherein the measuring includes, for each well of a plurality of wells associated with the reservoir, measuring pressure at a plurality of depths using a plurality of pressure gauges;
• fitting the pressure measurement data to the pressure model to produce a fitted model, wherein the fitting the pressure measurement data includes adjusting one or more of the pressure gradient, the between-well pressure measurement uncertainty, or the between-well depth measurement uncertainty;
• using, by one or more processors, the fitted model to predict one or more pressure differences of one or more pairs of wells, of the plurality of wells, at one or more depths;
• and
• automatically determining, by the one or more processors, lateral compartmentalization associated with the one or more pairs of wells based on the predicted one or more pressure differences.