Reservoir formation damage during hydrate dissociation in sand-clay sediment from Qilian Mountain permafrost, China
文献类型：期刊论文
| 作者 | Wang, Yi2,3,4,5; Pan, Mengdi1,4; Mayanna, Sathish4; Schleicher, Anja M.4; Spangenberg, Erik4; Schicks, Judith M.4 |
| 刊名 | APPLIED ENERGY
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 263页码:10 |
| 关键词 | Gas hydrate Reservoir formation damage Qilian Mountain Hydrate dissociation Gas production |
| ISSN号 | 0306-2619 |
| DOI | 10.1016/j.apenergy.2020.114619 |
| 通讯作者 | Wang, Yi(wangyi@ms.giec.ac.cn) ; Schicks, Judith M.(schick@gfz-potsdam.de) |
| 英文摘要 | Permeability is known as a key factor affecting the gas production effectiveness from the natural gas hydrate-bearing reservoir. We studied the permeability behavior of natural clayey sand core samples from a natural hydrate-bearing reservoir in the Qilian Mountain permafrost before and after hydrate formation, as well as after hydrate decomposition. We found a substantially lower permeability after hydrate decomposition and assumed a formation damage process involving fines mobilization, migration and deposition at pore throats. The assumption was proved by SEM analysis of the filter paper separating the sample and the end caps containing the fluid ports. The analysis showed fines trapped in the paper from the outlet side. Fines migration and resulting formation damage is known from enhanced oil recovery by low salinity water flooding, but was unexpected for hydrate decomposition. The underlying mechanism was identified by a series of different permeability tests. The results indicate that fresh water released from the hydrate dissociation causes the fines mobilization, migration and redeposition at pore throats leading to the observed permeability decrease. Obviously the large volume of released methane gas displaces the remaining saline water and separates it from the fresh water released from the hydrate. The fresh water in contact with parts of the grain framework causes the detachment of clay particles by increased electrostatic forces and clay swelling, if swellable clays are present. This is an important mechanism that has to be taken into account in the planning of gas production from low-permeability clayey hydrate-bearing formations. |
| WOS关键词 | METHANE HYDRATE ; GAS-PRODUCTION ; PERMEABILITY ; QINGHAI ; VERIFICATION ; SANDSTONES ; EXCHANGE ; SYSTEM ; WELL |
| 资助项目 | National Natural Science Foundation of China[51676190] ; Youth Innovation Promotion Association CAS[2018382] ; International S&T Cooperation Program of China[2015DFA61790] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; National Key Research and Development Plan of China[2016YFC0304002] ; National Key Research and Development Plan of China[2017YFC0307306] ; Youth Science and Technology Innovation Talent of Guangdong[2016TQ03Z862] ; Natural Science Foundation of Guangdong[2017A030313313] ; China Scholarship Council[201704910817] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000520402600055 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; International S&T Cooperation Program of China ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; Youth Science and Technology Innovation Talent of Guangdong ; Natural Science Foundation of Guangdong ; China Scholarship Council |
| 源URL | [http://ir.giec.ac.cn/handle/344007/26754]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Yi; Schicks, Judith M. |
| 作者单位 | 1.Univ Potsdam, Dept Earth & Environm Sci, D-14476 Potsdam, Germany 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 4.GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yi,Pan, Mengdi,Mayanna, Sathish,et al. Reservoir formation damage during hydrate dissociation in sand-clay sediment from Qilian Mountain permafrost, China[J]. APPLIED ENERGY,2020,263:10. |
| APA | Wang, Yi,Pan, Mengdi,Mayanna, Sathish,Schleicher, Anja M.,Spangenberg, Erik,&Schicks, Judith M..(2020).Reservoir formation damage during hydrate dissociation in sand-clay sediment from Qilian Mountain permafrost, China.APPLIED ENERGY,263,10. |
| MLA | Wang, Yi,et al."Reservoir formation damage during hydrate dissociation in sand-clay sediment from Qilian Mountain permafrost, China".APPLIED ENERGY 263(2020):10. |
入库方式： OAI收割
来源：广州能源研究所
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