Analysis of calculation of the horizontal gas well critical carrying liquid production in Sulige gas field

Technology of horizontal well development, as an important means of enhancing oil recovery, is gradually large scale implemented in Sulige gas field. In production process of the gas reservoir in horizontal well, when the gas output can not continuously carries the liquid out of the wellhead, loading liquid is generated in horizontal well bore which increases back pressure to the gas reservoir, limiting the gas well production capacity severely, and even causing the gas well water flooding, affecting the normal production of gas well. Based on the straight well continuous carrying liquid model, used angle related Lee Min continuous carrying liquid theory, the horizontal gas well critical carrying liquid production is determined, and combining with a single horizontal gas wells production dynamic, applicability and accuracy of this method in calculation to the horizontal gas well critical carrying liquid production in Sulige gas field is proved, which has important guiding significance of horizontal well's production.