Author:
Ukwuigwe Onyinyechi Chizobam,Igbokoyi Alpheus O.
Abstract
AbstractDuring polymer flooding into the reservoir using shear-thinning non-Newtonian fluids, an interface exists between the in situ Newtonian crude oil in the reservoir and the injected polymer solution. This paper examines the application of non-Newtonian well test analysis techniques to develop an analytical solution to non-Newtonian/Newtonian fluids with different flow index composite reservoirs for estimating the interface boundary conditions in such reservoirs. Mathematical models were presented and solved analytically using the Laplace transform. The solution was inverted to real domain with the Stehfest algorithm (Stehfest Commun ACM, 1970). Solutions were obtained for three boundary conditions that are infinite acting, constant pressure and no-flow boundaries. New pressure and pressure derivative type curves are developed for naturally fractured reservoirs. A general solution was obtained, which is adaptable to the case of non-Newtonian/Newtonian fluid interface. Numerical examples are used to estimate the radius of investigation, reservoir and power-law flow parameters using type curve matching and Tiab’s direct synthesis technique.
Publisher
Springer Science and Business Media LLC
Subject
General Energy,Geotechnical Engineering and Engineering Geology
Reference17 articles.
1. Al-Fariss TF (1984) Non-Newtonian oil flow through porous media, PhD Dissertation, University of British Columbia
2. Ambastha AK (1988) Pressure transient analysis for composite system. Study done at Stanford University, Stanford
3. Ertekin T, Adewumi MA, Daud ME (1987) Pressure transient behaviour of non-Newtonian/Newtonian fluid composite systems in porous media with a finite conductivity vertical fracture. Soc Pet Eng J. https://doi.org/10.2118/17053-PA
4. Escobar FH, Martinez J, Montealegre-Madero M (2010) Pressure and pressure derivative analysis for a well in a radial composite reservoir with a non-Newtonian/Newtonian interface. CT&F – Ciencia Technologia y Futura 4(2):33–42
5. Gencer CS, Ikoku CU (1984) Well test analysis for two-phase flow of non-newtonian power-law and newtonian fluids. ASME J Energy Resour Technol 106:295–305
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献