FIELD: engines and pumps.
SUBSTANCE: liner and inlet bowl, packer and ejector case, arranged sequentially from bottom to top, are downed in tubing (OWT), packer and inlet bowl being arranged above pay top bed. Said inlet bowl is arranged above the bed top of lower productive bed. Packer is removed, perforator is lowered on log cable in OWT and movable geophysical ejector arranged there above. Perforator is arranged in the zone of said bed, while geophysical ejector is arranged in said supporting case. Then on forcing fluid, e.g. oil in OWT pipe space, depression on the pay in parker tail is created to drain and perforate said bed. Reaction products pumped out from the pay, fluid feed into aforesaid aerodynamic ejector nozzle is abruptly cut off, log cable and perforator are withdrawn from the well. Acid solution is forced into said bed via OWT and supporting case, log instrument and geophysical ejector are lowered into said bed. Then log instrument is arranged in said liner and geophysical ejector is arranged in supporting case, and, on forcing fluid, e.g. oil, OWT space and into hydrodynamic ejector device nozzle, depression on the pay is created to drain products of reaction between acid solution with the bed from its well zone. Note here that logging instrument is used to register pressure under parker, well yield and physical properties of extracted fluid. Reaction products and bed fluid pumped out and geophysical ejector operating, geophysical parametres are registered from inlet bowl to bottom hole and, further on, from bottom hole to inlet bowl, in the conditions of inflow from said bed. Then operation of geophysical ejector is terminated to remove complex geophysical instrument from the well on the surface. Then hydrodynamic ejector with self-contained pressure gage is dropped down into OWT. Then hydrodynamic ejector device with self-contained pressure gage arranged there below is mounted in aforesaid supporting case, and, on forcing fluid in OWT hole clearance and into hydrodynamic ejector device nozzle, depression on the tested lower pay is created in parker tail. After draining till inflow stabilisation, fluid feed in hydrodynamic ejector nozzle is abruptly terminated. Note here that hydrodynamic ejector check valve arranged in pumped fluid feed channel cuts off automatically to allow registration of bed tail pressure recovery curve (PRC). After PRC registration cables are used to withdraw hydrodynamic ejector on the surface. Grouting mortar is forced via OWT and supporting case to arranged cement bridge in the zone of said bed. Packer is removed, OWT with supporting case is lifted to mount inlet bowl above upper productive bed roof. Now, packer is installed and above described sequence of job is performed to develop top productive beds.
EFFECT: expanded performances.
