Title : Oil-gas potential and geodynamics of the Caspian-Mediterranean and Mexican-Caribbean regions
Abstract:
All over the world and in the Russian Federation, the problem of forecasting and exploration of new deposits at great depths is acute. In September 2009, the Tiber oil field was discovered in the Gulf of Mexico at a depth of more than 10 km. In Kazakhstan, within the framework of the Eurasia project, it is planned to drill an ultra-deep well in the Pre-Caspian depression. In this regard, a comparative analysis of the geodynamics and oil and gas potential of the Caspian Basin and the Gulf of Mexico, as well as the Caspian-Caucasian and Caribbean-Mexican regions, is of particular importance.
The Pre - Caspian depression and the Gulf of Mexico are the largest oil and gas provinces in the world. In the structure and geodynamics of structures, certain features of similarity are observed. The emergence and evolution of geological structures reflect the interaction of the lithosphere and asthenosphere during the movement of lithospheric plates. A significant contribution to the formation of the basins of the Alpine Belt and the Caribbean is made by mantle diapirism. Mantle diapirs arise as a result of density inversion in the asthenosphere-lithosphere system. Such an inversion is the driving force behind the rise of individual diapirs against the backdrop of the convergence of Africa and Eurasia in the case of the Alpine Belt and the Americas for the Caribbean. Seismic tomography data captures a mantle diapir in the Caribbean. The rise of the diapir should also be expected in the Gulf of Mexico, as well as in the basins of the Alpine belt. The solution of the problem of mechanical and mathematical modeling makes it possible to estimate the magnitude of the rise of the mantle diapir under the Pre-Caspian depression.
The rise of hot asthenospheric diapirs determines the oil and gas content of sedimentary basins and the formation of large oil and gas fields. The Mexican supergiant is a reference salt and oil and gas basin. Most of the salt and oil and gas basins, including the Pre-Caspian Depression, are comparable to the Mexican basin in terms of key indicators and are also among the most highly promising and highly accident-prone. These indicators make the salt and oil-gas basins both the most promising for prospecting and oil production, and the most dangerous. It means raising the quality and safety requirements for the construction of offshore and deep wells.
Keywords: Alpine belt, Caribbean region, Gulf of Mexico, Pre-Caspian depression, mantle diapir, plate tectonics, oil and gas potential, modeling.
