Electrical prospecting Land works SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Talara Basin province (http://pubs.usgs.gov/bul/2206/A/b2206-a.pdf) A north-south cross section of the offshore Talara and southernmost Progreso Basin provinces was marked mainly by terrigenous sedimentation. Thickness of the combined Cretaceous through Tertiary stratigraphic sequences across the coastal basins varies from about 8,500 to 18,000 m (28,000 to 58,000 ft) (Zúñiga-Rivero and Hay-Roe, 1998). Presence of granitoid intrusions as high-resistance disturbing objects is complicating factor. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Examples of DNME works results in various geological-and-geophysical conditions Siberian platform 2- CH 174- CH 1- CH 3- 1K H, km 1 2 Deep wells: With noncommercial HC influx and productive by GIS with commercial HC influx non-productive Geoelectrical section of polarizability coefficient η distribution for survey line situated within Kovyktinskoye gas-condensate field illustrates the IP response intensity reduction moving away from the field. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Examples of DNME works results in various geological-and-geophysical conditions Siberian platform Geological section of terrigenous sedimentation of Kovykta field sandstone dolomite fields mudstone granite SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Examples of DNME works results in various geological-and-geophysical conditions Tatarstan Zones promising for discovery of hydrocarbon deposits has been allocated as a result of DNME works. One of the wells was located over the reef, which were considered no-prospect for oil and gas by seismic data. During drilling, the presence of deposits is confirmed. DNME-seismic complex has been regarded as an effective method searches of oil and gas. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Examples of DNME works results in various geological-and-geophysical conditions Rostov region Producing well Deep fault by magneto telluric sounding data Geoelectric section of ρ distribution Geoelectric section of η distribution Isohypse of the roof of the carbonate rock by seismic data IP anomaly The depth of deposits is not critical for DNME. The IP anomaly was identified as a result of DNME works in the geoelectric layer at a depth of 150 m. It is concerned with the reservoir in reef carbonate sediments of Vise stage located at a depth of 3.5 km, later confirmed by the drilling. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Examples of DNME works results in various geological-and-geophysical conditions Siberian platform IP anomalies concerned with deposits of hydrocarbons. The geoelectric properties of basaltic intrusions are high resistivity, but the increase of IP also can happened (A). This, changes of the time constant occurs along with the increase of IP. It allows to separate IP anomalies that are not associated with deposits of hydrocarbons. IP anomalies concerned with dolerite sill (Siberian formation of intrusions). Characteristic changes of the time constant τ in the zone of IP anomalies concerned with deposits of hydrocarbons. Dolerite sill are characterized by high values of resistivity Geoelectrical sections of parameters distribution: А. polarizability η; Б. time constant τ; В. resistivity ρ SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Customers feedback for the DNME work SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Customers feedback for the DNME work SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Near-field transient EM sounding Siberian platform H, m The complex of methods, DNME and Near-field transient EM sounding, well has proved. In this complex technique Near-field transient EM sounding allows to more accurately determine the resistivity of various layers of the section, both terrigenous and carbonate deposits. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

Near-field transient EM sounding Volgo-Uralskaya anteclise There is artificially filled underground gas reservoir, where gas pipelines and a large number of wells create industrial noise. Here the gas-water contact was determined using Near-field transient EM sounding after the gas injection. SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY

LLC «Siberian Geophysical Research e-mail: irkutsk@dnme.ru Contacts LLC «Siberian Geophysical Research Production Company» Russia, Irkutsk City phone.: +7 (3952) 38-37-01, +7 9500 56-07-17 e-mail: irkutsk@dnme.ru http: www.dnme.ru General Director: Sitnikov Alexander SIBERIAN GEOPHISICAL RESEARCH PRODUCTION COMPANY