New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support
For gas reservoirs with strong bottom or edge aquifer support, the most important thing is avoiding aquifer breakthrough in a gas well. Water production in gas wells does not only result in processing problems in surface facilities, but it also explicitly reduces well productivity and reservoir reco...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2016-10-01
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| Series: | Journal of Natural Gas Geoscience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468256X16300621 |
| _version_ | 1797712981270724608 |
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| author | Yong Li Baozhu Li Jing Xia Jing Zhang Kai Guo Yunpeng Hu |
| author_facet | Yong Li Baozhu Li Jing Xia Jing Zhang Kai Guo Yunpeng Hu |
| author_sort | Yong Li |
| collection | DOAJ |
| description | For gas reservoirs with strong bottom or edge aquifer support, the most important thing is avoiding aquifer breakthrough in a gas well. Water production in gas wells does not only result in processing problems in surface facilities, but it also explicitly reduces well productivity and reservoir recovery. There are a lot of studies on the prediction of water breakthrough time, but they are not completely practicable due to reservoir heterogeneity. This paper provides a new method together with three diagnostic curves to identify aquifer influx status for single gas wells; the aforementioned curves are based on well production and pressure data. The whole production period of a gas well can be classified into three periods based on the diagnostic curves: no aquifer influx period, early aquifer influx period, and middle-late aquifer influx period. This new method has been used for actual gas well analysis to accurately identify gas well aquifer influx status and the water breakthrough sequence of all wells in the same gas field. Additionally, the evaluation results are significantly beneficial for well production rate optimization and development of an effective gas field. |
| first_indexed | 2024-03-12T07:29:48Z |
| format | Article |
| id | doaj.art-fc320f9eba7b4bf29369ca5c33a4d245 |
| institution | Directory Open Access Journal |
| issn | 2468-256X |
| language | English |
| last_indexed | 2024-03-12T07:29:48Z |
| publishDate | 2016-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Natural Gas Geoscience |
| spelling | doaj.art-fc320f9eba7b4bf29369ca5c33a4d2452023-09-02T21:57:08ZengKeAi Communications Co., Ltd.Journal of Natural Gas Geoscience2468-256X2016-10-011540741110.1016/j.jnggs.2016.10.005New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer supportYong Li0Baozhu Li1Jing Xia2Jing Zhang3Kai Guo4Yunpeng Hu5Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 10083, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 10083, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 10083, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 10083, ChinaPetroChina Natural Gas and Pipeline Company, Beijing 100007, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 10083, ChinaFor gas reservoirs with strong bottom or edge aquifer support, the most important thing is avoiding aquifer breakthrough in a gas well. Water production in gas wells does not only result in processing problems in surface facilities, but it also explicitly reduces well productivity and reservoir recovery. There are a lot of studies on the prediction of water breakthrough time, but they are not completely practicable due to reservoir heterogeneity. This paper provides a new method together with three diagnostic curves to identify aquifer influx status for single gas wells; the aforementioned curves are based on well production and pressure data. The whole production period of a gas well can be classified into three periods based on the diagnostic curves: no aquifer influx period, early aquifer influx period, and middle-late aquifer influx period. This new method has been used for actual gas well analysis to accurately identify gas well aquifer influx status and the water breakthrough sequence of all wells in the same gas field. Additionally, the evaluation results are significantly beneficial for well production rate optimization and development of an effective gas field.http://www.sciencedirect.com/science/article/pii/S2468256X16300621Gas reservoirAquifer influx statusDiagnostic curvesClassification methodRate transient analysis |
| spellingShingle | Yong Li Baozhu Li Jing Xia Jing Zhang Kai Guo Yunpeng Hu New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support Journal of Natural Gas Geoscience Gas reservoir Aquifer influx status Diagnostic curves Classification method Rate transient analysis |
| title | New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| title_full | New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| title_fullStr | New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| title_full_unstemmed | New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| title_short | New methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| title_sort | new methodology for aquifer influx status classification for single wells in a gas reservoir with aquifer support |
| topic | Gas reservoir Aquifer influx status Diagnostic curves Classification method Rate transient analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2468256X16300621 |
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