Method for measuring and calculating formation pressure of heterogeneous oil reservoir in mine field

The invention relates to the technical field of oilfield development evaluation, in particular to a novel method for measuring and calculating formation pressure of a heterogeneous oil reservoir in a mine field. The method comprises the following steps: collecting early-stage pressure test data and corresponding development data of a target oil well; calculating a single well liquid production index during formation pressure testing; drawing a relation curve of the theoretical water content of the target oil well and the dimensionless liquid production index; determining a liquid production index of the oil well at the target moment; and calculating the formation pressure at the target moment. According to the method, the formation pressure of the target oil reservoir at the target moment can be simply, conveniently, rapidly and accurately obtained. And the measured formation pressure value has small error with the actual value, and the accuracy is high. 本发明涉及油田开发评价技术领域，具体涉及一种矿场非均质油藏地层压力测算新方法。其包括以下步骤：收集目标油井前期