Study the effect of nitrogen gas on phase behavior of gas condensate systems and dispersion of retrograde condensate
The effect of nitrogen gas on the phase transformation of gas condensate systems and its efficiency as a «working agent» for the production of precipitated retrograde condensate has been analyzed. Experimental studies on the pVT bomb based on a special methodology have clarified some contradictions that still exist in this area. Thus, the physical-thermodynamic nature of the different ways effect of nitrogen gas on the retrograde condensation pressure of the formation system or the stability of its dispersed state depending on the temperature range is explained. The research surveys are also studied the effect of nitrogen gas on gas phase dispersion in the precipitated retrograde condensate and liquid-gas interfacial exchange processes under different thermo-baric conditions. It was defined that if nitrogen gas is used to develop the wellbore zone of a gas condensate well, its efficiency should be specified depending on the degree of wellbore saturation with retrograde condensate, the amount of nitrogen in the working agent, formation temperature and number of cycles affecting the wellbore.