FIELD: pumping equipment, mainly well jet plants for extraction of oil from wells.
SUBSTANCE: in accordance to the invention, jet pump is lowered into well on tubing pipes, pump having stepped through-pass channel in its body, below jet pump packer and tail piece with inlet cone are positioned. Packer release is performed. Through pipes column and stepped pass-through channel, pipes column of lesser diameter is lowered into the well with geophysical device held on lower end of the column, and then logging cable with cable tip installed on its end, let through pressurizing unit, is lowered through pipes column of lesser diameter. By means of cable tip, geophysical device is connected to logging cable. Upper end of lesser diameter pipes column by means of a clamp is held on logging cable and by means of the latter lesser diameter pipes column with geophysical device under its own weight is lowered into horizontal section of the well. During lowering of geophysical device, registration of geophysical parameters of well is performed. Geophysical device is positioned in face of horizontal section of well, and sealing unit is installed in stepped through-pass channel of jet pump body. Working substance is injected into jet pump nozzle, creating a set of depressions of varying values in sub-packer space of well, and well debit and well pressure are measured for each value of depression. Then during operation of jet pump by means of logging cable the lesser diameter pipes column is lifted together with geophysical device and registration of geophysical parameters of formations is performed along the shaft of well from the face to inlet cone of pipes column. By logging cable the geophysical device with lesser diameter pipes column and the sealing unit are lifted to the surface. Depression insert is installed in stepped through-pass channel of jet pump body, having reverse valve and autonomous device suspended on it for registration of parameters of parameters of substance extracted from well and pressure. Liquid working substance is injected into jet pump nozzle and depression is created in sub-packer space of well. Then injection of liquid working substance is stopped and registration of formation pressure restoration curve in sub-packer space is performed, and then depression insert is lifted to the surface.
EFFECT: reduced time cost and cost of equipment which is mounted in the well during organization of operations concerning research, testing and preparation of horizontal and greater curvature wells.
2 cl, 3 dwg
