FIELD: oil and gas industry.
SUBSTANCE: invention relates to methods for assessment of efficiency of intensification of oil production from carbonate reservoirs by method of hydrochloric-acid effect and can be used for rapid assessment of efficiency of acid treatment. Method for evaluating the efficiency of hydrochloric-acid treatment of a well, used in wells equipped with a rod well pump, involves removal of HPC from well during its development by swabbing, in which registration of information on change of bottomhole pressure is carried out with a downhole measuring system. At that, the deep measuring complex is preliminarily placed into a copper cup filled with a corrosion inhibitor, which prevents harmful effect of aggressive liquid remaining in the well after hydrochloric-acid treatment.
EFFECT: technical result consists in high accuracy of recording in online mode the value of bottomhole pressure during development, which enables to obtain a reliable curve of pressure change at the well bottom with subsequent interpretation.
1 cl, 2 dwg
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