Technogenic factors of impact on productive sediments of hydrocarbon deposits and their relation to potential deformation of the Earth’s surface
The article presents the results of the studies of the assessment of subsidence of the Earth’s surface above hydrocarbon fields, obtained by mathematical modeling and on the basis of field observations. The purpose of these studies is the substantiation of changes in the initial physical-mechanical and strength properties of productive deposits in the process of exposure to them by various methods of development, comparison of estimates of subsidence of the Earth’s surface obtained by calculation and geodetic methods, taking into account the heterogeneity of the geological structure of the fields and the technogenic factors of impact. It is shown that the value of the calculated surface subsidence over the field, obtained on single data of the coefficient of pore compressibility of rocks and without taking into account the impact of the applied methods of development, does not allow an objective assessment of this process over the field area. The conclusion is made about the necessity of repeated profile leveling and gravimetric observations for a real assessment of the subsidence process of the Earth’s surface, which allows to control the industrial and environmental safety of natural and natural-technogenic objects in the field.