Яндекс.Метрика

V.Y. Timofeev, D.G. Ardyukov,D.A.Nosov, I.S. Sizikov, A.V. Timofeev, E.V. Boyko,E.N.Kalish,Y.F.Stus

: Seismic Instruments

We discuss the results of gravimetric and satellite geodetic measurements at the Zapolyarnoye and Yamburgskoye gas and oil deposits in Transpolar Western Siberia in subarctic zone of Yamal-Nenets autonomous okrug. The development of mineral deposits and large number of pipelines require monitoring of recent motions of the Earth's surface. Displacements and other phenomenon were studied by satellite geodesy and absolute gravimetry. It is now possible to obtain the kinematic parameters (rates of subsidence and horizontal motion) and addition information on fluid motion into the layers of the deposits. The ground displacements rate in different short periods recorded at large man-made objects are shown. Rates for hydroobjects are estimated at 5 mm/yr. The gravimetry and satellite geodesy results obtained at the Zapolyarnoye deposit in the northern part of Western Siberia were analyzed. Subsidence rates of 21-23 mm/yr were estimated. An increase in gravity of up to 7 mu Gal were recorded at the deposits (2006-2008). In this case, the increased gravity is related to surface subsidence (with a normal vertical gradient). Subsidence rates of 16-21 mm/yr were estimated at the Yamburgskoye field. This result is consistent with the rates at Zapolyarnoye. The horizontal rates and orientation differed at different deposits.
индекс в базе ИАЦ: 035236