On the Solution of the Gravity Direct Problem for a Prism with a Simulated Annealing Approach

Summary This article describes the effectiveness of using the simulated annealing method to solve a series of direct gravimetric problems based on gravimetric monitoring data. It is shown that the use of the developed algorithm makes it possible to increase the reliability of the mathematical model and significantly reduce working time when analysing the measured gravitational field over the developed oil and gas fields. The proposed method is developed as one of the subsystems of a special GIS designed for storage, processing, analysis and visualization of gravimetric monitoring data at an oil and gas field. The article describes the operation of the algorithm and demonstrates the results of modeling. For calculations, a sequence of horizontal prismatic bodies was selected, a priori calculation parameters are indicated, and criteria for searching for optimal solutions are developed.