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| DOI | 10.1016/j.advwatres.2020.103604 |
| Transient flow to a finite-radius well with wellbore storage and skin effect in a poroelastic confined aquifer | |
| Fan Z.; Parashar R. | |
| 发表日期 | 2020 |
| ISSN | 0309-1708 |
| 卷号 | 142 |
| 英文摘要 | This paper presents analytical solutions for pumping from a poroelastic, confined aquifer where the combined effects of a finite-thickness skin zone and the wellbore storage are fully incorporated. The pumping-induced axisymmetric stress, plane strain deformation, and pore pressure are derived in the Laplace transform domain. Time-domain solutions are obtained using the Stehfest inversion algorithm. Numerical examples are presented to investigate the effects of hydromechanical coupling and poroelasticity on the hydraulic drawdown at the pumping well and at an observation well. The results show that traditional methods substantially underestimate the drawdown at the pumping well in a low-permeability hard rock compared with the drawdown predicted using the fully coupled poroelastic theory. The difference becomes more pronounced when a finite-thickness positive skin is present with a permeability that is lower than the permeability of the formation. For finite-radius pumping wells with storage, the effects of poroelasticity on drawdown are masked by the effects associated with wellbore storage. © 2020 Elsevier Ltd |
| 关键词 | AquifersBoreholesLaplace transformsStrainWell pumpsConfined aquifersFinite-thickness skinHydromechanical couplingInversion algorithmObservation wellsPoroelastic theoryTime domain solutionWell bore storageOil field equipmentconfined aquiferdeformationdrawdownhydromechanicspermeabilityplane strainpore pressureporoelasticitypumpingtransient flowwater storagewell water |
| 语种 | 英语 |
| 来源机构 | Advances in Water Resources |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131779 |
| 推荐引用方式 GB/T 7714 | Fan Z.,Parashar R.. Transient flow to a finite-radius well with wellbore storage and skin effect in a poroelastic confined aquifer[J]. Advances in Water Resources,2020,142. |
| APA | Fan Z.,&Parashar R..(2020).Transient flow to a finite-radius well with wellbore storage and skin effect in a poroelastic confined aquifer.,142. |
| MLA | Fan Z.,et al."Transient flow to a finite-radius well with wellbore storage and skin effect in a poroelastic confined aquifer".142(2020). |
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