Geodetic observations at the geodynamic polygon in oil-producing areas of Tatarstan Republic, RF

The authors describe an extended network of high-precision levelling moves and a developed one of differential geodetic stations created at the complex geodynamic testing ground of PJSC ‘Tatneft’ in the oil-producing areas of Tatarstan Republic, RF. According to the results of 20-year repeated levelling measurements the manifestations of γ-type anomalies (local subsidence) were revealed, it characterises the zones of modern geodynamic activity. According to the extended time series data of the differential geodetic stations’ network coordinates changes, deformations of the earth surface as to two closely located points were revealed. The results of one combined point’s heights determining made by satellite method and levelling were compared. An extensive network of GNSS stations is actively used in geodetic and cadastral works, in search, exploration, development and arranging oil fields, in monitoring of regional geodynamic conditions