Introducing a New Experimental Method for Efficient Pinpointing of Minimum Miscible Pressure Parameter

فاقد چكيده فارسي

Accurate experimental measuring of minimum miscible pressure parameter using slim tube devices is always demanding but crucial and problematic test. By the passage of time, different methods have been raised but there is no complete agreement on experimental pinpointing of this important parameter. In other words, the results are always depends on final recovery factors measured roughly in each pressure steps. This experimental research aims to introduce the results of slim tube experimental set up commingled with continuous high pressure density meter apparatus. Using this complementary device, effluent high pressure phase density was measured continuously and density curves were interpreted precisely in each pressure step. The results showed that coming close to minimum miscible pressure leads to appear a new transition zone in density- pressure curve which is so called mixed density zone. During slim tube tests, constructing of density profiles of effluent phase for some Iranian oil samples was considered. Using these important density profiles one can determine precise estimation of minimum miscible pressure so that true miscible or immiscible gas injection scenarios could be figure out.