METHOD OF POWDER PRESSURE GENERATOR APPLICATION Russian patent published in 2014 - IPC E21B43/16 E21B43/24 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil and gas industry, and namely to powder pressure generators and may be used to simulate oil and gas production. The concept of the invention is as follows: according to the method to the pre-killed well a flow string is run in with a loading hopper at the end. The loading hopper is made as a pipe section with inner cone, which least diameter is equal to inner diameter of the flow string and the largest diameter is less than minimum full bore. The packer is set and activates above the productive stratum and the loading hopper. Christmas tree gate valve is closed; a lubricator with powder pressure generator is installed above the gate valve. A logging cable is passed through a stuffing box installed above the lubricator. Thereafter the pressure-balancing valve is closed and the gate valve is open. Afterwards the powder pressure generator is run in to the well at the logging cable below the loading hopper to the interval of the productive stratum. Voltage is supplied through the logging cable to glowing filaments set in powder charges. Powder charges are ignited thus ensuring mechanical, thermal, physical and chemical impact on the productive stratum. Time delay is held upon treatment of the productive stratum. Then unburnt parts of the powder pressure generator are lifted at the logging cable through the loading hopper to the lubricator, the gate valve is closed, the pressure-balancing valve is open. Inside the lubricator pressure is balanced to the atmospheric pressure and then the lubricator is disconnected. At that the loading hopper is designed to protect the packer during powder charges burning, and the time delay upon treatment of the productive stratum shall be not less than five minutes.

EFFECT: increased efficiency of impact on the productive strata and blowout prevention of the produced product from the well.

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