A STUDY ON TRANSIENT FLUID FLOW OF HORIZONTAL WELLS IN DUAL-PERMEABILITY MEDIA

作者：Wang Xiao dong^*; Zhou Ying fang; Luo Wan jing

来源：Journal of Hydrodynamics, 2010, 22(1): 44-50.

DOI：10.1016/S1001-6058(09)60026-3

• horizontal well
• dual-permeability media
• fluid flow in 3-D porous media
• transient pressure analysis
• Laplace transformation

To adopt horizontal wells in dual media reservoirs, a good understanding of the related fluid flows is necessary. Most of the recent studies focus on dual porosity media instead of dual permeability media. In this article, through both integral transformation and sink-source superposition, a new Laplace-domain solution is obtained for the slightly-compressible fluid flow in the 3-D dual-permeability media in which the horizontal well is operating in a constant rate of production. Major asymptotic characteristics of diagnosis curves of dimensionless downhole pressure are analyzed by the limited analysis. Effects of parameters of dual-permeability media including mobility ratio kappa, storativity ratio omega and inter-porosity flow parameter kappa on the downhole pressure are studied by using the Laplace numerical inversion. The new solution obtained in this article includes and improves the previous results and then can be used as a basis for either pressure transient analysis or formation behavior evaluation for the typical reservoir with horizontal wells.

• 出版日期2010-2
• 单位中国地质大学（北京）