Geophysical researches and works in wells
Geophysical researches in prospecting, exploration and exploitation wells up to 7000 meters deep are carried out in an open and closed wellbore with the use of computerized logging stations and software-controlled well equipment which provides:
• stratigraphic lithological sectional layering in wells;
• allocation of collectors and determination of their porosity and permeability properties;
• determination of nature of saturation;
• control of the barrel trajectory and the technical state of wells;
• control over exploitation of wells and overhauls of wells solving the problem of determining a position of technical elements in the well, quality of cementation of the production strings and their technical state;
• determination of profiles of inflow (water-intake capacity) of wells, reasons and sources of their watering, determination of hydrodynamic parameters of the layers, a coefficient of residual oil saturation of collectors, research with high well-head pressure, industrial and geophysical research in horizontal wells and sidetracks, development of wells by swabing, purification of pumping compressor pipes from paraffin plugs and asphaltene deposits;
• control over the state of underground gas storage
geological and technological as well as geological and geochemical research in the process of well drilling;
• research of wells by layer testers on pipes and logging cables;
• core selection by coring tools on the cable;
• secondary disclosure of reservoir layers by cumulative perforation during repression and depression on the formation of perforators on pipes and logging cables of leading world firms (Owen, DYNA Energetic, Schlumberger, etc.);
• intensification of tides of hydrocarbons by explosive and vibratory methods;
• liquidation of accidents in wells using explosive energy;
• collection, storage, processing, interpretation and generalization of geological and geophysical data on wells and deposits using modern computer technologies.