| Gas Flow in a Stratified Porous Medium with Crossflow |
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| 引用本文： | Sun Hedong,Gao Chengtai,Qian Huanqun,Zhou Fangde (State Key Laboratory of Multiphase Flow in Power Engineering Xi''''an Jiaotong University,Xi''''an 710049,China) (Department of Petroleum Engineering,Xi''''an Petroleum Institute,Xi''''an 710065,China). Gas Flow in a Stratified Porous Medium with Crossflow[J]. 热科学学报(英文版), 2002, 11(1): 35-40. DOI: 10.1007/s11630-002-0019-z |
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| 作者姓名： | Sun Hedong Gao Chengtai Qian Huanqun Zhou Fangde (State Key Laboratory of Multiphase Flow in Power Engineering Xi''''an Jiaotong University Xi''''an 710049 China) (Department of Petroleum Engineering Xi''''an Petroleum Institute Xi''''an 710065 China) |
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| 作者单位： | Sun Hedong，Gao Chengtai，Qian Huanqun，Zhou Fangde (State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University，Xi'an 710049，China) (Department of Petroleum Engineering，Xi'an Petroleum Institute，Xi'an 710065，China) |
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| 基金项目： | the National NatualScience Foundation of China (No.59995460). |
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| 摘 要： | IntroductionMany ..servoirs are stratified in nature due to thevarying energy level of the original depositionaIenvironment. The transporting medium softs the sourcematerial depositing one layer at a time in any givenenvironment. When the depositionaI energy levelschange, the subsequent overiying layers may be differentin composition and texture, fOrming a series of dissindlarunits of strata. Such fOrmations are calIed multilayersystems. In many cases some of the layers have such lowpermeab…
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Gas flow in a stratified porous medium with crossflow |
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| Hedong Sun,Chengtai Gao,Huanqun Qian,Fangde Zhou. Gas flow in a stratified porous medium with crossflow[J]. Journal of Thermal Science, 2002, 11(1): 35-40. DOI: 10.1007/s11630-002-0019-z |
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| Authors: | Hedong Sun Chengtai Gao Huanqun Qian Fangde Zhou |
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| Affiliation: | (1) State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University, 710049 Xi’an, China;(2) Department of Petroleum Engineering, Xi’an Petroleum Institute, 710065 Xi’an, China |
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| Abstract: | A new model called semi-permeable wall model is presented for multilayer gas reservoir. The model is used to study the influence of crossflow on pressure transient well tests and other single-phase flow problems. It is suggested here to use this model to approximate the actual multilayer gas reservoir, so that the problem is greatly simplified mathematically. Its differential equation is established here for multilayer gas reservoirs, and is linearized by normalized pseudo pressure and pseudo time. Simulation program is developed by finite-difference method when all layers are perforated. The feature of wellbore pressure and rate is clarified by analyzing the results of numerical simulation. |
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| Keywords: | multi-layer gas reservoir semi-permeable wall model numerical simulation transient well-test wellbore storage skin factor. |
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