| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: facility is designed for extracting of oil from wells and can be employed to determine conditional values of filtration-capacity parameters of reservoirs at different stages of oil and gas deposits development and to intensify oil extraction. The facility incorporates a packer and a jet pump installed at the pipe string from bottom up; the said pump consists of a case with an active nozzle and a mixing chamber arranged along the pipe string, and also it consists of pumped-off medium supply channel and a step-by-step pass-through channel both assembled in the case coaxially to the pipe string where the step-by-step pass-through channel is installed above the supply channel of pumped-off medium; the step-by-step pass-through channel is equipped with a seat to receive an insertion for registering curves of pressure build-up. In the registering curves of pressure build-up insertion there are upper and lower rods; the said rods have apertures through which there runs an electrical connection between an instrument head tied with the upper rod and a cable tag tied to the lower rod. Positions of the upper and lower rods in the case are fixed with a spring, while a spring loaded valve is located at the lower rod. ^ EFFECT: reduced time of operation. ^ 2 cl, 1 dwg |
