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contributor authorWenhong Li
contributor authorCai Deng
contributor authorWen Xu
contributor authorXurong Zhao
date accessioned2025-04-20T10:26:39Z
date available2025-04-20T10:26:39Z
date copyright9/9/2024 12:00:00 AM
date issued2024
identifier otherJLEED9.EYENG-5446.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4304733
description abstractFracture geometries and drainage radius are essential parameters for developing a reasonable development plan for a single fractured well. However, owing to fracture hits, the complex fracture geometries bring challenges for parameter estimations. This paper establishes a well testing based model for a finite-conductivity fractured vertical well in radial composite reservoirs with dynamic supply and fracture networks. Based on the successive steady-state method, the point source function, pressure superposition principle, and boundary element method are used to solve the reservoir model, and the methods of discrete fracture and pressure superposition are used to solve the fracture model. By introducing the rate-normalized pseudopressure and material balance time, the variable fluid flux is equivalent to the constant fluid flux. The drainage radius value and fracture geometries are solved by fitting the log-log curves of pressure response, and case studies are performed. The results show that the drainage radius increases with the increase of production time and finally tends to a specific value, and it has an excellent exponential relationship with time. Also, the fracture geometries of the typical well are multiple-radial fracture networks. Through the study of dynamic drainage radius, the controlled reserves of single wells in unconventional gas reservoirs can be better determined, and it can also provide a theoretical basis for fracture evaluation, productivity prediction, and enhanced recovery study of the same type of tight gas reservoir.
publisherAmerican Society of Civil Engineers
titleIdentifications of Complex Fracture Geometry and Changing Drainage Radius in Tight Gas Reservoirs
typeJournal Article
journal volume150
journal issue6
journal titleJournal of Energy Engineering
identifier doi10.1061/JLEED9.EYENG-5446
journal fristpage04024030-1
journal lastpage04024030-8
page8
treeJournal of Energy Engineering:;2024:;Volume ( 150 ):;issue: 006
contenttypeFulltext


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