Repair of irregularly shaped salt cavern gas storage by re-leaching under gas blanket
文献类型：期刊论文
| 作者 | Li, Yinping2; Wang, Tongtao2; Ma, Hongling2; Shi, Hui2; Liu, Jiqin1; Li, Jianjun1; Li, Jinlong2,3; Shi, Xilin2; Yang, Chunhe2 |
| 刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2017 |
| 卷号 | 45页码:848-859 |
| 关键词 | Salt cavern Underground gas storage Cavern repair Mathematical model Shape irregularity |
| ISSN号 | 1875-5100 |
| DOI | 10.1016/j.jngse.2017.07.004 |
| 英文摘要 | During cavern leaching for salt cavern gas storage in China, cavern shape irregularity has become a growing problem. It reduces cavern volume and the utilization ratio of the salt formations. The collapse of the irregular parts may cause downhole accidents and threaten cavern stability. In this paper, shape repair of an irregular salt cavern by re-leaching under gas blanket is proposed for the first time in China. The technological process of the cavern repair under gas blanket is introduced. A mathematical model is set up to predict the real-time three-dimensional shape of the salt cavern during the repair process. The upper and lower limit of the gas-brine interface, the depth of the leaching tubing and the salt-brine mass transfer rates are included in the model. The coupled equations for shape prediction are derived, which consider the effects of brine concentration and velocity. A VC++ program is developed based on these equations. To verify the proposed model, the repair process of a gourd-shaped salt cavern is carried out in the laboratory and is simulated by the program. The comparison of the experimental and simulation results shows that the proposed model has a high accuracy. The prediction model and the VC++ program are used in the field repair work of JT86 cavern of Jintan underground gas storage. The irregular parts are well repaired, and the cavern is enlarged by about 9000 m(3). The sonar imaging and injection-production data of the repaired cavern coincide well with the simulation results obtained by the proposed model, which further validates the reliability and precision of the model. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000409150200062 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4134]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.PetroChina Co Ltd, Gas Storage Project Dept, West East Gas Pipeline Co 2.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 3.Univ Chinese Acad Sci ; |
| 推荐引用方式 GB/T 7714 | Li, Yinping,Wang, Tongtao,Ma, Hongling,et al. Repair of irregularly shaped salt cavern gas storage by re-leaching under gas blanket[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2017,45:848-859. |
| APA | Li, Yinping.,Wang, Tongtao.,Ma, Hongling.,Shi, Hui.,Liu, Jiqin.,...&Yang, Chunhe.(2017).Repair of irregularly shaped salt cavern gas storage by re-leaching under gas blanket.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,45,848-859. |
| MLA | Li, Yinping,et al."Repair of irregularly shaped salt cavern gas storage by re-leaching under gas blanket".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 45(2017):848-859. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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