Abstract
Oil-water relative permeability curves are the characteristic curves of evaluating the oil-water infiltrating fluid and also are an important part of reservoir engineering studies. Through a large number of core flooding experiments, based on the establishment of oil-water relative permeability calculation models, the use of the function of the relative permeability curves divided these into the water phase concave, water phase convex and a water phase linear categories. The relationship between different types of relative permeability curves with reservoir characteristics, moisture content, common infiltration points, common permeation range and oil displacement efficiency have been evaluated. Analysis the distribution of the reservoir usable remaining oil and reservoir irreducible oil of different types of relative permeability curves.
Highlights
Oil-water relative permeability curves are the basis for evaluation of oil-water two-phase flow capability and one of the most basic parametric curves in reservoir development, are the indispensable data of reservoir engineering parameters calculating, dynamic data analysis, numerical simulation and so on [1,2,3]
From different types of relative permeability curves of moisture content and water saturation curve shows in Fig. (4): the water moisture of water phase concave relative permeability curves rise slower in the early water injection, with an increase in the moisture content of water injection rate began to rise greatly, and the rise amplitude of final moisture content gradually decreased again
The same moisture content, the usable remaining oil saturation of water phase concave highest, and the aqueous phase convex followed by aqueous phase linear
Summary
Oil-water relative permeability curves are the basis for evaluation of oil-water two-phase flow capability and one of the most basic parametric curves in reservoir development, are the indispensable data of reservoir engineering parameters calculating, dynamic data analysis, numerical simulation and so on [1,2,3]. We have more research about oil and water relative permeability curves, but less research on different types of relative permeability curves and reservoir characteristics of remaining oil distribution relationships [4, 5]. This study collected a total of 68 cores results of water displacing oil, based on the establishment of oil-water relative permeability calculation model [6] to classify the relative permeability curves. The relationship between different types of relative permeability curves with reservoir characteristics, common infiltration points, common permeation range, oil displacement efficiency and moisture content have been evaluated. Summarizes the reservoir usable remaining oil and reservoir irreducible oil of different types of relative permeability curves
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call