METHOD OF HYDRATION CONTROL IN INTRAFIELD FLOWLINES OF GAS AND GAS-CONDENSATE POOLS IN FAR NORTH Russian patent published in 2008 - IPC E21B43/00 F17D3/00 

FIELD: mining.

SUBSTANCE: method includes indication of starting moment of hydration process in flowline by means of temperature control of gas transmitted to the inlet of gas processing facility from flowline and supply of inhibitor to well clusters via the separate pipeline. In this case, actual temperature (t_u) of gas at the output of flowline, gas temperature (t_H) at the well mouth and ambient temperature (t₀) are measured. According to the values of t_H and t₀, value of gas temperature at the output from flowline (t_p) is calculated and momentum of its variation in time is compared with momentum of the actual gas temperature variation (t_u). Depending on the result of the said comparison, hydration starting moment and necessity for hydrate inhibitor supply into flowline are defined.

EFFECT: more accurate indication of hydration starting moment and reduced hydrate inhibitor loss.

2 cl, 1 dwg