RAPID METHOD OF DETERMINING CURRENT CONTENT OF HYDROCARBONS C IN BED GAS-CONDENSATE OF WELL Russian patent published in 2016 - IPC G01N7/00 G01K13/00 E21B43/00 

FIELD: gas industry.

SUBSTANCE: invention relates to analysis of gas condensate wells and can be used when determining hydrocarbon content (hereinafter-HC) C_5+B in bed gas directly during research works on gas condensate wells. Disclosed is rapid method of determining current content of hydrocarbons C_5+B in bed gas of condensate well, according to which value is calculated by commercial gas condensate factor GCF (cm³/m³). Value of coefficient of unstable gas condensate shrinkage k_us is determined by means of sampler container volume V_k (cm³) and volume of degassed condensate from sampler container V_dgk (cm³). Content of degassed condensate K_dgk (cm³/m³) is determined. Content of HC C_5+B in separation gas K_gs (g/m³) is determined using diagram of dependence of HC content C_5+B in separation gas K_gs (g/m³) from temperature separation t_c (°C) defined experimentally during earlier investigations, where on abscissa temperature separation is laid t_c (°C), and on ordinate - content of HC C_5+B in separation gas K_gs (g/m³). Points are applied on graph and approximate polynomial relationship in order to obtain line, on which is projected vertically value of current temperature separation, and horizontal projection of the value of the HC C_5+B in separation gas, followed by calculating HC content C_5+B in bed gas K_sce (g/m³).

EFFECT: technical result is increase of reliability of obtained data on content of HC C_5+B in bed gas by real-time monitoring for purpose of evaluating current gas-condensate characteristics during field researches.

1 cl, 2 dwg, 2 ex