Industrial Geophysics

The public joint-stock company Samaraneftegeofizika has 5 field geophysical expeditions:

• Otradnenskaya field - geophysical expedition (OPGE);
• Oil and gas field - geophysical expedition (NPGE);
• Sernovodskaya Field - Geophysical Expedition (SPGE);
• Samara Formation Testing Expedition (SEIP);
• Buzuluk field geophysical expedition (BPGE).

The expeditions include 46 parties and detachments that carry out water-logging in wells in the Samara, Saratov, Orenburg, Ulyanovsk regions and the Yamalo-Nenets Autonomous Okrug.

Tasks to be solved:

In drilling wells:

• Lithologic-stratigraphic section of a section of wells;
• Isolation of reservoir layers in the context of wells with a quantitative determination of their filtration-capacitive properties and the nature of saturation;
• Monitoring wiring and determining the spatial position of the wellbore;
• Testing the interval of interest for the cut by pipe testers and cable testers with sealed sampling and determination of the hydrodynamic parameters of the seams;
• Studying the technical condition of the wellbore, determining the quality of casing string fastening using gamma-gamma-ray logging and acoustic cementometry methods with recording the full wave pattern;
• Secondary opening of productive formations by cumulative and mechanical perforators with control of the effectiveness of opening
• Well development by swabbing with determination of the hydrodynamic parameters of the reservoirs according to the results of measurements by an autonomous pressure gauge.

In the existing well stock:

• Determination of the profile of the inflow and composition of the producing fluid and injectivity of injection wells (including in wells with high wellhead pressure);
• Determination of oil-water contact in productive intervals;
• Monitoring the current development of reservoirs;
• Identification of annular circulation and identification of sources of watering of products;
• Determination of hydrodynamic characteristics of formations;
• Determination of fluid levels and composition in the wellbore;
• Elimination of paraffin deposits in tubing;
• Clarification of the condition and location of downhole equipment;
• Intensification of injectivity and oil recovery;
• Digitization and processing of GIS materials.

Field geophysical research and work in wells

Well survey by geophysical methods:

• Electric
• Radioactive
• Electromagnetic
• Acoustic
• Thermometric
• Nuclear magnetic

The study of the technical condition of the wellbore methods:

• Inclinometry
• Profilemetry
• Acoustic cementometry
• Radioactive cementometry
• Barometrics
• Thermometry
• Flow metering
• Flaw detection

Study of the near-wellbore space using VSP and NVSP methods

Secondary opening of reservoirs:

• Cumulative rock drills on the cable and tubing
• Testing wells with pipe testers

Well stimulation methods:

• Thermogasochemical
• Hydrodynamic

Production well bottom face cleaning work
Well development work (swabbing)
Work on the installation of dividing bridges in the wells
Well accident response work
Geological and geophysical interpretation of GIS results