A model for predicting gas well performance of free gas zone beneath hydrate layer
文献类型：期刊论文
| 作者 | Su, Z.1,2; Cao, Y.1,3; Wu, N.1,2 |
| 刊名 | journal of petroleum science and engineering
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 71期号:3-4页码:179-186 |
| 关键词 | free gas zone gas production numerical simulation Blake Ridge |
| 英文摘要 | free gas beneath hydrate is an important natural gas resource and may be more feasible to exploit than dispersed hydrate of low hydrate saturation. here we construct a single well production model of subhydrate free gas in which pressure and pressure gradient at any node of a finite element are expressed by gas density and density increment at the point. the model is used to predict the reservoir pressure and cumulative production by depressurization from a single vertical well. gas production capacity correlates with well fluid pressure, gas saturation, permeability, and of course exploitation time. the model is tested by using the production data from the dako trial reservoir tests. the simulation shows that gas production rate is almost constant over the course of production (e.g., there is very little decline) in the case of a 100% gas reservoir. the numerical computation also indicates that the free gas reservoir beneath the hydrates at the blake ridge may be of economic value for industry production. for a 69 m thick gas reservoir with 20% gas saturation, 8.65 x 10(8) m(3) (similar to 618 thousand tons) of gas can be extracted within 10 years for a permeability of 10 md, and the mass fraction of the gas in the fluids produced at the well during production period is 46%. (c) 2010 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | energy & fuels ; engineering, petroleum |
| 研究领域[WOS] | energy & fuels ; engineering |
| 关键词[WOS] | constraints ; sediments |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000277650000012 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10330]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Z.,Cao, Y.,Wu, N.. A model for predicting gas well performance of free gas zone beneath hydrate layer[J]. journal of petroleum science and engineering,2010,71(3-4):179-186. |
| APA | Su, Z.,Cao, Y.,&Wu, N..(2010).A model for predicting gas well performance of free gas zone beneath hydrate layer.journal of petroleum science and engineering,71(3-4),179-186. |
| MLA | Su, Z.,et al."A model for predicting gas well performance of free gas zone beneath hydrate layer".journal of petroleum science and engineering 71.3-4(2010):179-186. |
入库方式： OAI收割
来源：广州能源研究所
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