Controlled valve Mistral

for advanced gentle killing of wells after hydraulic fracturing/fracture stimulation

Operational silencing

killing immediately after hydraulic fracturing/fracturing of the well,
without waiting for prolonged discharge

Time saving

saves 3-14 days of work for the development team waiting for the well to be discharged

Safety

does not require a packer or stinger to be detonated for jamming

Preserving reservoir potential

preserves well potential after hydraulic fracturing/fracturing due to gentle killing and avoidance of deep formation colmatization with killing solution

Accident prevention

eliminates problems with the inability to deactivate packers and stingers after hydraulic fracturing/fracturing when there is a pressure difference between above and below the packer/stinger space, Mistral will balance the pressures;

Multilevel protection

ensures that the fluid moves in only one direction - from the annulus to the pipe space;
an accidental pressure surge in the annulus cannot activate the valve. Activation of the valve is two-stage - removal of the safety device, opening of the valve;
no dependence on specific weight of fluid in the annulus, on the depth of valve installation in the well, on fluid leakage through leakage of annulus space;
the valve is tight when pressurizing Packer/stinger in the annulus and creating back pressure on them during hydraulic fracturing in the annulus.

Equipment
Mistral-Packer well killing equipment

Equipment
Mistral-Stinger well killing equipment

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Controlled valve Mistral

EquipmentMistral-Packer well killing equipment

EquipmentMistral-Stinger well killing equipment

Equipment
Mistral-Packer well killing equipment

Equipment
Mistral-Stinger well killing equipment