河北工业科技2018，Vol.35Issue(1)：31-36,6.DOI:10.7535/hbgykj.2018yx01006
缝洞型碳酸盐岩油藏试井分析模型研究
Research of the fractured vuggy type carbonate reservoirs well test analysis model
摘要
Abstract
The fractured vuggy type carbonate reservoirs follow the structure and karst function processes,large scale caves and fractures are mature,and there's little difference in scale.Therefore,the formation of caves and fractures can be regarded as a double porosity model.Considering the flow of fluid in fracture and cave,a double porosity of single permeability well test model with sealed boundary reservoir is established considering the influence of wellbore storage and skin factor.The mathe-matical model is solved by Laplace transform and Stehfest numerical inversion algorithm,and the solution of dimensionless well bottom pressure in real space is obtained.The typical curves of well test are plotted and analyzed.The characteristics of well test typical curves and the influence of sensitivity with different formation parameters to well test pressure response curves are analyzed.The results of well test analysis model established in this paper can reflect the characteristics of reservoir and flow mechanism of fluid in fractured vuggy carbonate reservoir.It lays a theoretical foundation for further improving and developing well test model of fractured vuggy carbonate reservoir and enriching well test interpretation method.关键词
渗流力学/缝洞/碳酸盐岩/试井分析/双孔单渗Key words
mechanics of flow through porous media/fractured vuggy/carbonate reservoir/well test analysis/double porosity and single permeability分类
能源科技引用本文复制引用
邢翠巧,尹洪军,李兴科,赵梓瑜,付京..缝洞型碳酸盐岩油藏试井分析模型研究[J].河北工业科技,2018,35(1):31-36,6.基金项目
黑龙江省自然科学基金(E2016015) （E2016015）
