FIELD: gas industry.
SUBSTANCE: invention relates to production of methane from coal beds and can be used in studying of separate formations developed coal multilayer field. Method for selective analysis of separate formations coal-methanol wells consists in lowering of a tubing string (TS) with screw pump and pressure and temperature sensor. Control of screw pump is realized by means of a pump control station with a frequency converter. By means of two layout of the tubing string are separated one from the abdomen formations of the analysed methanol well. After launching the downhole pumping equipment well fluid with extracted formation, at that, gas is fed across space between tubing string of smaller and greater diameters to production tree, providing a possibility of additional suspension production tubing string.
EFFECT: technical result consists in reduction of power consumption, higher accuracy of survey of separate formations in order to determine reservoir properties.
1 cl, 1 dwg
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