Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
A novel inversion approach for fracture parameters and inflow rates diagnosis in multistage fractured horizontal wells | |
Luo, Hongwen1; Li, Haitao1; Tan, Yongsheng2; Li, Ying1; Jiang, Beibei1; Lu, Yu1; Cui, Xiaojiang1 | |
2020 | |
发表期刊 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING |
ISSN | 0920-4105 |
卷号 | 184期号:-页码:13 |
摘要 | Significant difficulties still exist in fracture parameters and inflow rates diagnosis for multistage fractured horizontal wells (MFHWs) using conventional method. The newly developed distributed temperature sensing (DTS) technology which can monitor the real-time downhole conditions for MFHWs provides enormous potential to solve this problem. However, due to the lack of robust inversion approaches, it's hard to quantitatively translate the DTS data to fracture parameters and inflow rates. In this work, firstly, a comprehensive inversion system combined with a forward and inversion model is proposed. The forward temperature model is developed to simulate the temperature behavior of an MFHW. The inversion model derived from the Markov Chain Monte Carlo(MCMC) algorithm is used to decrease the differences between the measured temperature and the predicted temperature iteratively. Subsequently, a synthetic case is presented to analyze the temperature characteristics and the application of this inversion approach. It has been found that any temperature drop (Delta T) corresponds to a created fracture and the Delta T are basically proportional to the inflow rates. According to that, a convenient equation is formulated to assign the initial inflow rate distribution to improve the computational efficiency of the inversion procedure. Finally, a field application (Well FH_1) is provided to demonstrate the capability of the developed inversion system to diagnose fracture parameters and inflow rates. Satisfactory inversion results are obtained within finite inversion iterations for this MHFW. The maximum temperature errors corresponding to each fractures are less than 0.02K. The inversed total production rate is 10.329 x 10(4) m(3)/d which matches the measured production rate (10.33 x 10(4)m(3)/d) very well that just validates the accuracy of the developed inversion system. The findings of this study can help for better understanding of fracture parameters and inflow rates diagnosis from the downhole temperature measurements for MFHWs. |
关键词 | Inversion model Distributed temperature sensing Fracture parameters Inflow rates Markov Chain Monte Carlo Multistage fractured horizontal well |
DOI | 10.1016/j.petrol.2019.106585 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Science and Technology Major Project of China[2016ZX05021-005-009HZ] ; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University |
WOS研究方向 | Energy & Fuels ; Engineering |
WOS类目 | Energy & Fuels ; Engineering, Petroleum |
WOS记录号 | WOS:000501599800019 |
出版者 | ELSEVIER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.198/handle/2S6PX9GI/23192 |
专题 | 中科院武汉岩土力学所 |
作者单位 | 1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Luo, Hongwen,Li, Haitao,Tan, Yongsheng,et al. A novel inversion approach for fracture parameters and inflow rates diagnosis in multistage fractured horizontal wells[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,184(-):13. |
APA | Luo, Hongwen.,Li, Haitao.,Tan, Yongsheng.,Li, Ying.,Jiang, Beibei.,...&Cui, Xiaojiang.(2020).A novel inversion approach for fracture parameters and inflow rates diagnosis in multistage fractured horizontal wells.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,184(-),13. |
MLA | Luo, Hongwen,et al."A novel inversion approach for fracture parameters and inflow rates diagnosis in multistage fractured horizontal wells".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 184.-(2020):13. |
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