Mechanism of the Production Impact in Shale Gas Wells Caused by Water Invasion during Interwell Interference
文献类型：期刊论文
| 作者 | Wang, Ke4; Ye, Kairui1; Jiang, Beibei2; Li, Haitao2; Tan, Yongsheng3 |
| 刊名 | ACS OMEGA
 |
| 出版日期 | 2021-12-15 |
| 页码 | 9 |
| ISSN号 | 2470-1343 |
| DOI | 10.1021/acsomega.1c05993 |
| 英文摘要 | Interwell interference is a universal problem in shale gas development and can cause severe reductions in the productivity of producing wells. Studies have attempted to identify the root cause of interference in producing wells, but the mechanisms of production reduction and recovery in impacted wells are still not clear. Thus, an effective preventive strategy is needed for producing wells when fracturing is performed in adjacent wells. According to the mechanism of spontaneous imbibition and water drainage in shale mico- and nanoscale pores, this paper introduces the water-gas distribution during fracturing and production and reveals that water drainage in micro- and nanoscale pores is mainly controlled by the amount of stored gas and follows the order of pore size. Based on this analysis, the mechanism by which interwell interference impacts the production of producing wells is explained for the first time. It is concluded that the secondary water invasion caused by interwell interference completely blocks the pores associated with long-term gas production but has little influence on the pores that have not yet drained or have produced only a small amount of gas, and smaller pores face a greater risk of water blockage. The proportion of drained pores formed during long-term gas production determines the effect of interwell interference on production; when more pores are drained by long-term gas production, greater damage occurs to the productivity of the producing well. The suggestion for preventing interwell interference is to reduce the time interval between fracturing operations at two adjacent wells, thereby diminishing the reduction in production. |
| 资助项目 | Guizhou University[702825] ; Chuanqing Drilling Engineering Co., Ltd. ; CNPC (research on the optimization of shale gas well production system based on the imbibition mechanism)[cqxn-2020-10] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000733819600001 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/30892]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Ke |
| 作者单位 | 1.CNPC Chuanqing Drilling Engn Co Ltd, Shale Gas Explorat & Dev Dept, Chengdu 610051, Sichuan, Peoples R China 2.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 4.Guizhou Univ, Key Lab Karst Georesources & Environm, Coll Resources & Environm Engn, Minist Educ, Guiyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ke,Ye, Kairui,Jiang, Beibei,et al. Mechanism of the Production Impact in Shale Gas Wells Caused by Water Invasion during Interwell Interference[J]. ACS OMEGA,2021:9. |
| APA | Wang, Ke,Ye, Kairui,Jiang, Beibei,Li, Haitao,&Tan, Yongsheng.(2021).Mechanism of the Production Impact in Shale Gas Wells Caused by Water Invasion during Interwell Interference.ACS OMEGA,9. |
| MLA | Wang, Ke,et al."Mechanism of the Production Impact in Shale Gas Wells Caused by Water Invasion during Interwell Interference".ACS OMEGA (2021):9. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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