Oleskiv R. Investigation of stress-strain state of underground gas storage wells based on geodetic measurements

3. The object of the study is underground gas storage area. The aim of the research is establishment of the stress-strain state of the rocks, elevator (operating) columns and casing pipes of wells of underground gas storages in the most dangerous places: bottomhole formation zone and the wellhead. In the process of theoretical researches it was developed a method that allows mining-based industrial and geodetic data to determine the deformation characteristics of technological improvement and rocks of wells. In particular, obtained Mathematical formulas for setting voltage and moving rocks in the bottomhole formation zone and the wellhead; performed the modeling of rocks in the wellheads and investigated the influence of vertical displacements on the safety of elevator (operating) columns; set the value of moving of casing pipes in the bottomhole formation zone. The results of theoretical developments are closely related to experimental studies performed in underground gas storage of Bohorodchany.