Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin
The dynamic physical simulation of natural gas accumulation process is one of the important means to reveal the mechanism of natural gas migration and accumulation and to summarize its distribution law. However, due to the characteristics of natural gas itself including "easy to leak, difficult...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Petroleum Geology and Experiment
2022-09-01
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| Series: | Shiyou shiyan dizhi |
| Subjects: | |
| Online Access: | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202205790 |
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| author | Qun LUO Shichen WANG Chun JIA Bing DAI Hongli ZHANG Fan WEN Zhaoxuan QIU |
| author_facet | Qun LUO Shichen WANG Chun JIA Bing DAI Hongli ZHANG Fan WEN Zhaoxuan QIU |
| author_sort | Qun LUO |
| collection | DOAJ |
| description | The dynamic physical simulation of natural gas accumulation process is one of the important means to reveal the mechanism of natural gas migration and accumulation and to summarize its distribution law. However, due to the characteristics of natural gas itself including "easy to leak, difficult to move and difficult to observe" have become holdbacks for the physical simulation of natural gas migration and accumulation. In order to reveal the migration and accumulation mechanisms of fault-controlled gas reservoirs, and to summarize the formation sequence and distribution pattern of gas reservoirs, typical reservoirs in Dongping, Mahai and Nanbaxian areas in the northwestern part of Tarim Basin were taken as examples to establish a geological evolution model for each reservoir. Aiming at the problems of gas reservoir simulation, an adjustable simulation device for gas migration and accumulation was designed, which could realize the dynamic process of structural change and clarify the phenomenon of gas charging and migration, and the formation process of typical gas reservoirs such as Dongping, and Mahai-Nanbaxian, etc. was successfully simulated. It is clear that the fault not only acts as a channel for gas migration and power transmission, but also controls the evolution sequence and distribution pattern. The formation and evolution sequence models of two different types of natural gas reservoirs, named "late accumulation" and "long-term accumulation", were proposed, the mechanism of natural gas migration and accumulation driven by "fault transmission and high pressure" was revealed, and the vertical preservation sequence featured by "co-existence of natural gas in both deep and shallow formations, and the deeper formations are more favorable for preservation" was concluded. A new concept of natural gas exploration was put forward that "if there are shallow gas reservoirs, there must be deep ones", and we can find natural gas from shallow to deep formations. |
| first_indexed | 2024-03-07T15:47:45Z |
| format | Article |
| id | doaj.art-a97e1d3177b045bc98d3a73030d4002b |
| institution | Directory Open Access Journal |
| issn | 1001-6112 |
| language | zho |
| last_indexed | 2024-03-07T15:47:45Z |
| publishDate | 2022-09-01 |
| publisher | Editorial Office of Petroleum Geology and Experiment |
| record_format | Article |
| series | Shiyou shiyan dizhi |
| spelling | doaj.art-a97e1d3177b045bc98d3a73030d4002b2024-03-05T04:28:24ZzhoEditorial Office of Petroleum Geology and ExperimentShiyou shiyan dizhi1001-61122022-09-0144579080310.11781/sysydz202205790sysydz-44-5-790Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam BasinQun LUO0Shichen WANG1Chun JIA2Bing DAI3Hongli ZHANG4Fan WEN5Zhaoxuan QIU6State Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum (Beijing), Beijing 102249, ChinaSichuan Provincial Bureau of Geology and Mineral Exploration and Development, Chengdu, Sichuan 610100, China202 Geological Team, Sichuan Provincial Bureau of Geology and Mineral Exploration and Development, Yibing, Sichuan 644002, ChinaState Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Exploration, China University of Petroleum (Beijing), Beijing 102249, ChinaThe dynamic physical simulation of natural gas accumulation process is one of the important means to reveal the mechanism of natural gas migration and accumulation and to summarize its distribution law. However, due to the characteristics of natural gas itself including "easy to leak, difficult to move and difficult to observe" have become holdbacks for the physical simulation of natural gas migration and accumulation. In order to reveal the migration and accumulation mechanisms of fault-controlled gas reservoirs, and to summarize the formation sequence and distribution pattern of gas reservoirs, typical reservoirs in Dongping, Mahai and Nanbaxian areas in the northwestern part of Tarim Basin were taken as examples to establish a geological evolution model for each reservoir. Aiming at the problems of gas reservoir simulation, an adjustable simulation device for gas migration and accumulation was designed, which could realize the dynamic process of structural change and clarify the phenomenon of gas charging and migration, and the formation process of typical gas reservoirs such as Dongping, and Mahai-Nanbaxian, etc. was successfully simulated. It is clear that the fault not only acts as a channel for gas migration and power transmission, but also controls the evolution sequence and distribution pattern. The formation and evolution sequence models of two different types of natural gas reservoirs, named "late accumulation" and "long-term accumulation", were proposed, the mechanism of natural gas migration and accumulation driven by "fault transmission and high pressure" was revealed, and the vertical preservation sequence featured by "co-existence of natural gas in both deep and shallow formations, and the deeper formations are more favorable for preservation" was concluded. A new concept of natural gas exploration was put forward that "if there are shallow gas reservoirs, there must be deep ones", and we can find natural gas from shallow to deep formations.https://www.sysydz.net/cn/article/doi/10.11781/sysydz202205790fault-controlled gas reservoirnatural gas accumulationphysical simulationqaidam basin |
| spellingShingle | Qun LUO Shichen WANG Chun JIA Bing DAI Hongli ZHANG Fan WEN Zhaoxuan QIU Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin Shiyou shiyan dizhi fault-controlled gas reservoir natural gas accumulation physical simulation qaidam basin |
| title | Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin |
| title_full | Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin |
| title_fullStr | Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin |
| title_full_unstemmed | Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin |
| title_short | Physical simulation of dynamic accumulation of fault-controlled gas reservoirs and its implications: a case study of typical gas reservoirs in northwestern part of Qaidam Basin |
| title_sort | physical simulation of dynamic accumulation of fault controlled gas reservoirs and its implications a case study of typical gas reservoirs in northwestern part of qaidam basin |
| topic | fault-controlled gas reservoir natural gas accumulation physical simulation qaidam basin |
| url | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202205790 |
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