Solid fuel pressure generator provides

High-energy gas-dynamic reservoir stimulation technology

Ensures intensification of well productivity by increasing the filtration-capacity properties of reservoir rock by means of hydrogasdynamic fracturing of the reservoir, the formation of a system of residual cracks and cleaning of the near-wellbore zone.

Generator design

The generator is an assembly based on a geophysical cable. Active and main charges initiated by a detonating cord are attached to it. The electrical circuit is closed to an explosive cartridge in the lower tip, and the upper part of the generator is equipped with gas outlet and fastening elements.

Operating principle:

To create a hydrogasdynamic fracturing of the reservoir and form a system of residual cracks in the wellbore zone, the pressure created in the wellbore during combustion of solid fuel charges of the generator shall exceeded the rock pressure in accordance with calculations taking into account charge parameters, geological and technical characteristics of well, filling fluid and reservoir.

Two stages of processing allow to control the combustion of charges, the magnitude and duration of the exposure. As a result, the layer is subjected to mechanical, thermobaric and physicochemical effects.

Key benefits of the high-energy gas-dynamic reservoir stimulation technology:

Efficient impact on the reservoir:

• uasi-static and dynamic loads enhances the wedging action of liquid and gaseous combustion products;
• creation of an extensive system of residual cracks due to a combined effect (mechanical, thermobaric and physicochemical);
• reduction of skin factor.

Economic efficiency:

• high rates of increase in well productivity with minimal financial and time costs;
• cost optimization, as no special heavy equipment is needed;
• efficiency of work due to the mobility of geophysical parties.

Safety and mitigation of risks:

• minimal risk of behind-the-casing circulation;
• elimination of blast and brisant effects.

Flexibility and interoperability:

• obtaining data on the potential of productive reservoirs;
• pre-treatment before hydraulic fracturing;
• rforming complex works with combustible oxidizing compounds before/ together with acid treatment.