PACKER DEVICE Russian patent published in 2012 - IPC E21B33/12 

FIELD: oil and gas production.

SUBSTANCE: packer device includes hollow tubular housing with holes with temperature-sensing element concentrically fixed from outside and tubular low-melting metal ingot and heater. The device also includes elastic sealed hollow tubular chamber concentrically fixed at the housing with fittings inside, the ingot is located inside the tubular chamber and fittings are inside or outside the ingot, temperature-sensing element is made in a form of a spring made of the alloy with shape memory effect, the spring is concentrically mounted at the housing inside the tubular chamber, connected to the housing by the end close to well mouth, has a form of a coil and together with the housing is located in the well only till the end of packering. Additionally the device includes pump, tubing, turbine chamber with drain channel and guiding plates attached inside it, power generator installed in turbine chamber with working and driven impellers fixed at the opposite ends of its shaft, sleeve from elastic material located concentrically outside the tubular chamber and fixed at the ends on the housing, heater is located in the housing and represents an electric heating element that is connected to the power generator by electric thermostatic element and corresponding electric wires, working impeller is located in turbine chamber opposite to the guiding plates and driven impeller is located in the housing opposite the heater. The coil spring is covered by plastic mixture.

EFFECT: enlarging of functional capabilities of packer device.

3 cl, 3 dwg