METHOD FOR CONSERVATION OF GAS CONDENSATE WELL UNDER CONDITIONS OF ABNORMAL LOW BED PRESSURE Russian patent published in 2008 - IPC E21B33/13 

FIELD: oil and gas industry.

SUBSTANCE: method includes filling borehole of gas condensate well with liquid through well control equipment, shutting gates of the well control equipment and leaving the gas condensate well under pressure. At that, volume of liquid is determined on the basis of the inside diameter of a producing column, on the height of interval of perforation holes, on the depth of a bottomhole, on the height of liquid column above the interval of perforation holes facilitating counter pressure onto a production bed not exceeding the bed pressure for more, than 10%. As liquid an inert non-freezing liquid is used, such as, for instance, methanol water or other water-spirit solutions. The invention withdraws contamination from a producing bed and facilitates drawing out of gas from a producing bed after completion of conservation period of well.

EFFECT: withdrawing contamination from producing bed and facilitating drawing out of gas from producing bed after completion of conservation period of well.

1 dwg, 1 ex