FIELD: oil and gas industry.
SUBSTANCE: facility comprises jet pump (JP) and packer. In the case of JP a nozzle and a mixing chamber with a diffuser are coaxially installed, also there are arranged a stepped through channel (STC) narrowing top-down with a seat between steps, a channel supplying (CS) medium pumped off the well and communicating with STC below the seat, a SC of active working medium communicating with a nozzle from the side of output from it, while from the side of input into SC it communicates with annulus space. STC is coaxial to a tube column and communicates with the latter. SC of medium pumped off the well and SC of active medium are each equipped with a back valve and an arrester of locking body of the valve traveling up against a saddle of the valve. A pressurising unit in form of a hollow stepped case with a sealing element can be installed in STC. An axial channel is made in the sealing element to receive rigid logging cable with a logging apparatus. Above STC and coaxially to it there is installed a guiding bushing-separator in the case of JP, which is overhung secured with its upper end in the upper part of the JP case. Longitudinal slits are made in a wall of the guiding bushing-separator. Ratios of facility components are specified.
EFFECT: there is achieved upgraded reliability and efficiency of facility operation at carrying out test of well and optimisation of operations sequence at test.
4 cl, 4 dwg
