| 3D PRESSURE TRANSIENT ANALYSIS MODEL OF FRACTURED-CAVED RESERVOIR BASED ON SEISMIC CHARACTERIZATION | |
Wan YZ1,2 ; Wu NY1,2; Liu CL1,2; Chen Q1,2; Liu YW(刘曰武)3
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| Corresponding Author | Wan, Yizhao(wanyizhao@mail.cgs.gov.cn) |
| Source Publication | JOURNAL OF POROUS MEDIA
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| 2019 | |
| Volume | 22Issue:11Pages:1351-1370 |
| ISSN | 1091-028X |
| Abstract | Large-scale fractures and cavities cause difficulties of geological modeling, which in turn makes the fluid flow simulation difficult. In this paper, a geological modeling process based on three-dimensional (3D) seismic characterization is proposed to model real reservoirs, and then a 3D pressure transient analysis model is developed to model the fluid flow in the fractured-caved reservoirs. In this model, the reservoir is characterized as three types of media explicitly: cavities simplified as irregular polyhedrons, fractures represented by slabs, and the matrix of the rest. A finite-element method is implemented to obtain the solutions of the governing equations. Two idealized cases of fractures and cavities are presented using the model. The results show fractures and cavities play the dominant role in the fluid flow. In the fractures case, the log-log type curves can be divided into six stages, and the bilinear flow is the main feature. A larger permeability of fractures causes a longer period of bilinear flow. The log-log type curves of the cavity case are also divided into six stages. The larger permeability of cavities, the lower the horizontal line of the pressure derivative, but the influence of cavities not connected with the wellbore is limited. Comparison with the radial-composite model shows that the radial-composite model gets a volume-equivalent radius of the cavity, but a higher permeability and a negative skin factor. The developed model is also applied for the well test analysis of a field case, which shows a significant ability to characterize the fluid flow of fractured-caved reservoirs. |
| Keyword | fractured-caved reservoirs 3D seismic characterization finite-element method pressure analysis numerical well testing |
| DOI | 10.1615/JPorMedia.2019024313 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000499635600002 |
| WOS Keyword | TARIM BASIN ; SIMULATION ; PERMEABILITY ; FLOW |
| WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| Funding Project | Shandong Provincial Natural Science Foundation[ZR2019BD058] ; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology[MMRZZ201807] ; National Key R&D Program of China[2018YFC0309204] ; Marine Geological Survey Program[DD20190231] |
| Funding Organization | Shandong Provincial Natural Science Foundation ; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology ; National Key R&D Program of China ; Marine Geological Survey Program |
| Classification | Q3 |
| Ranking | 5+ |
| Contributor | Wan, Yizhao |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81201 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Qingdao Inst Marine Geol, Key Lab Gas Hydrate, Minist Nat Resources Peoples Republ China, Qingdao 266071, Shandong, Peoples R China; 2.Qingdao Pilot Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Shandong, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wan YZ,Wu NY,Liu CL,et al. 3D PRESSURE TRANSIENT ANALYSIS MODEL OF FRACTURED-CAVED RESERVOIR BASED ON SEISMIC CHARACTERIZATION[J]. JOURNAL OF POROUS MEDIA,2019,22,11,:1351-1370. |
| APA | Wan YZ,Wu NY,Liu CL,Chen Q,&刘曰武.(2019).3D PRESSURE TRANSIENT ANALYSIS MODEL OF FRACTURED-CAVED RESERVOIR BASED ON SEISMIC CHARACTERIZATION.JOURNAL OF POROUS MEDIA,22(11),1351-1370. |
| MLA | Wan YZ,et al."3D PRESSURE TRANSIENT ANALYSIS MODEL OF FRACTURED-CAVED RESERVOIR BASED ON SEISMIC CHARACTERIZATION".JOURNAL OF POROUS MEDIA 22.11(2019):1351-1370. |
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| Jp2019551.pdf（2019KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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