FIELD: oil and gas industry.
SUBSTANCE: invention relates to jet machinery. The facility operation method is as follows: a set of equipment is dropped down into the well in a pump and compressor tube (PCT) column on a flexible pump and compressor tube (FPCT). The ejector pump is installed in the axial channel of the support having a bypass channel with a check valve. In the pump housing a channel is arranged with two mounting seats (sized larger and smaller) positioned above and below the supply channel of the pumped-out medium pump. Below the PCT within the productive stratum zone a caviator is installed. An acid solution is pumped into the stratum. The operating fluid is supplied to the caviator and the stratum is treated with decolmatation. The packer is released. Into the FPCT two balls are dropped, with a larger and a smaller diametre, for mounting on the mounting seats and performance of functions of a check valve and the pump switchover to the operating mode. One supplies operating fluid to the pump nozzle and performs draining. After the medium has been pumped out supply of the operating fluid is dramatically decreased. The both valves are shut off. The stratum pressure recovery curves are registered. Through pumping between the PCT and the FPCT through the nozzle and the FPCT the fluid is replaced with gas, the packer is released in the PCT and the FPCT set is lifted. The well is commissioned according to the fountain method.
EFFECT: increased performance of the facility during productive stratum treatment.
2 dwg
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Authors
Dates
2010-06-20—Published
2009-05-25—Filed