| Multiphysics coupling study of near-wellbore and reservoir models in ultra-deep natural gas reservoirs | |
Cheng PD(程鹏达); Shen WJ(沈伟军) ; Xu,Qingyan; Lu XB(鲁晓兵); Qian,Chao; Cui,Yue
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| Corresponding Author | Shen, Weijun([email protected]) |
| Source Publication | JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
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| 2022-01-16 | |
| Pages | 10 |
| ISSN | 2190-0558 |
| Abstract | Understanding the changes of the near-wellbore pore pressure associated with the reservoir depletion is greatly significant for the development of ultra-deep natural gas reservoirs. However, there is still a great challenge for the fluid flow and geomechanics in the reservoir depletion. In this study, a fully coupled model was developed to simulate the near-wellbore and reservoir physics caused by pore pressure in ultra-deep natural gas reservoirs. The stress-dependent porosity and permeability models as well as geomechanics deformation induced by pore pressure were considered in this model, and the COMSOL Multiphysics was used to implement and solve the problem. The numerical model was validated by the reservoir depletion from Dabei gas field in China, and the effects of reservoir properties and production parameters on gas production, near-wellbore pore pressure and permeability evolution were discussed. The results show that the gas production rate increases nonlinearly with the increase in porosity, permeability and Young's modulus. The lower reservoir porosity will result in the greater near-wellbore pore pressure and the larger rock deformation. The permeability changes have little effect on geomechanics deformation while it affects greatly the gas production rate in the reservoir depletion. With the increase in the gas production rate, the near-wellbore pore pressure and permeability decrease rapidly and tend to balance with time. The reservoir rocks with higher deformation capacity will cause the greater near-wellbore pore pressure. |
| Keyword | Ultra-deep formation Natural gas extraction Coupled model Two-phase flow Rock deformation Near-wellbore pore pressure |
| DOI | 10.1007/s13202-021-01424-7 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000742984700001 |
| WOS Keyword | FLUID-FLOW ; TARIM BASIN ; OIL ; GEOMECHANICS ; SIMULATION ; FORMULATION ; DIRECTIONS ; EVOLUTION ; MEDIA |
| WOS Research Area | Energy & Fuels ; Engineering ; Geology |
| WOS Subject | Energy & Fuels ; Engineering, Petroleum ; Geosciences, Multidisciplinary |
| Funding Project | National Natural Science Foundation of China[U1762216] ; National Natural Science Foundation of China[11802312] ; National Natural Science Foundation of China[11802313] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Shen, Weijun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88388 |
| Collection | 流固耦合系统力学重点实验室 |
| Recommended Citation GB/T 7714 | Cheng PD,Shen WJ,Xu,Qingyan,et al. Multiphysics coupling study of near-wellbore and reservoir models in ultra-deep natural gas reservoirs[J]. JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY,2022:10.Rp_Au:Shen, Weijun |
| APA | 程鹏达,沈伟军,Xu,Qingyan,鲁晓兵,Qian,Chao,&Cui,Yue.(2022).Multiphysics coupling study of near-wellbore and reservoir models in ultra-deep natural gas reservoirs.JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY,10. |
| MLA | 程鹏达,et al."Multiphysics coupling study of near-wellbore and reservoir models in ultra-deep natural gas reservoirs".JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY (2022):10. |
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| Jp2022FA555_2022_Mul（2468KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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