FIELD: oil and gas industry.
SUBSTANCE: system includes several flexible structures for isolation of the fluid medium for storage of fluid mediums used or obtained during the hydraulic fracturing. Flexible vessels can be filled with water for its storage before injection into a well or with drilling waste removed from wells. The system of valves and pumps controls the flows of fluid mediums pumped into and out the flexible vessels, the well and the purification equipment. The blowout preventer comprising the main branch pipe, the discharge branch pipe, and the return branch pipe maintains in two directions the hydraulic interconnection with the well. Drilling muds are supplied into the discharge branch pipe and discharged from the main branch pipe into the well. The flowmeter can be connected with the discharge branch pipe for determination of volume of the fluid medium passing through the discharge branch pipe into the well. Drilling waste can also return from the well through the main branch pipe and to leave into the return branch pipe which can include a flowmeter as well.
EFFECT: commissioning simplification, minimising of leaks in environment and its pollution, possibility of exact monitoring is provided.
20 cl, 6 dwg
