| Analysis method of pulse decay tests for dual-porosity cores | |
Han GF(韩国锋) ; Sun L; Liu YW(刘曰武); Zhou SW
| |
| Source Publication | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 2018-11-01 | |
| Volume | 59Pages:274-286 |
| ISSN | 1875-5100 |
| Abstract | Homogeneous models are typically used to analyze the results of pulse-decay tests for low permeability cores. However, this poses a problem because some samples are dual-porosity media with microcracks/macropores and micropores. In this study, numerical simulations were conducted and the results showed that the pulse decay curves of the dual-porosity models are different from those for the homogeneous model. The results indicated that the volumes of the upstream and downstream vessels play an important role in identifying dual-porosity media and the early time and late time are mainly influenced by the storativity ratio and interporosity flow coefficient, respectively. A pressure derivative method was proposed in this work in order to identify dualporosity media at the early time and distinguish the interporosity flow models. This method is applicable for vessel volumes within one-tenth to ten times the pore volume. The proposed method was verified against the experimental data of other researchers. |
| Keyword | Pulse decay test Transient dual-porosity model Pseudosteady-state dual-porosity model Permeability |
| DOI | 10.1016/j.jngse.2018.09.006 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000448677300022 |
| WOS Keyword | TRANSIENT LABORATORY METHOD ; TIGHT ROCKS ; PERMEABILITY MEASUREMENT ; HYDRAULIC-PROPERTIES ; PRESSURE ; GAS ; SHALE ; ADSORPTION ; DIFFUSION ; TRANSPORT |
| WOS Research Area | Energy & Fuels ; Engineering, Chemical |
| WOS Subject | Energy & Fuels ; Engineering |
| Funding Organization | Key Laboratory for Mechanics in Fluid solid Coupling Systems, CAS ; National Natural Science Foundation of China [11602276] |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78162 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China |
| Recommended Citation GB/T 7714 | Han GF,Sun L,Liu YW,et al. Analysis method of pulse decay tests for dual-porosity cores[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2018,59:274-286. |
| APA | 韩国锋,Sun L,刘曰武,&Zhou SW.(2018).Analysis method of pulse decay tests for dual-porosity cores.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,59,274-286. |
| MLA | 韩国锋,et al."Analysis method of pulse decay tests for dual-porosity cores".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 59(2018):274-286. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| irJ2018091.pdf（2391KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
| IrJ2018385.pdf（2391KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment