Investigation of Relationship of Interfacial Tension (IFT) And Velocity Dependent Relative Permeability (VDRP) To Liquid Saturation In Wellbores In Gas Condensate Reservoirs Under Dynamic Conditions

Putra, Dike Fitriansyah and Hidayat, Fiki and Agustin, Dita Audina (2020) Investigation of Relationship of Interfacial Tension (IFT) And Velocity Dependent Relative Permeability (VDRP) To Liquid Saturation In Wellbores In Gas Condensate Reservoirs Under Dynamic Conditions. Solid State Technology, 63 (1s). pp. 1367-1375. ISSN 0038-111X

Text SIET_2020_Paper_79 -- AL.pdf - Published Version Download (318kB)

Abstract

The study aims to understand the effects of interfacial tension (IFT) and velocity dependent relative permeability (VDRP) to gas production, especially once the wellbore pressure is below the dew point under dynamic conditions beyond the conventional steady-state assumptions. The main impact of this occurrence is liquid loading in the wellbore that may block the gas influx. The interfacial tension (IFT) and velocity dependent relative permeability (VDRP) alteration along with the liquid filling will affect gas production process. A realistic conceptual simulation model is developed by activating the IFT and VDRP options in the base case. The analysis enables us to outline how critical the effects of both parameters to liquid production. Firstly, the liquid drop-out from gas phase, then accumulation, while still immobile until they establish a condensate banking and block a part of the wellbore region so that the gas cannot flow up to the surface, resulting in impairment in well deliverability. This study uses three parameters of IFT, for instance, IFT 1, IFT 5, and IFT 10 as well as activates the VDRP option for another parameter in the scenarios. The scenario IFT 1 shows that liquid production increases up to 0.205%, scenario IFT 5 increases up to 0.371%, and scenario IFT 10 increases up to 0.422%. Meanwhile, the VDRP option exhibits that liquid production increase by up to 57.40%. The analysis indicates that liquid production significantly escalates while the IFT is getting higher, and VDRP options display the liquid loading even more due to the effects of IFT. The novelty of this study is the ability to analyze the dynamic condition of fluid behavior in the wellbore compared to the steady-state condition that has been investigated by several authors in the literature.

Actions (login required)

View Item