Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir
A condensate gas reservoir is an important special oil and gas reservoir between oil reservoir and natural gas reservoir. Gas injection production is the most commonly used development method for this type of gas reservoir, but serious retrograde condensation usually occurs in the later stages of de...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/7698970 |
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| author | Yiming Wu Kun Yao Yan Liu Xiangyun Li Mimi Wu Ronghong Cheng Bo Wang |
| author_facet | Yiming Wu Kun Yao Yan Liu Xiangyun Li Mimi Wu Ronghong Cheng Bo Wang |
| author_sort | Yiming Wu |
| collection | DOAJ |
| description | A condensate gas reservoir is an important special oil and gas reservoir between oil reservoir and natural gas reservoir. Gas injection production is the most commonly used development method for this type of gas reservoir, but serious retrograde condensation usually occurs in the later stages of development. To improve the recovery efficiency of condensate oil in the middle and late stages of production of a condensate gas reservoir, a gas injection parameter optimization test study was carried out, taking the Yaha gas condensate reservoir in China as an example. On the premise that the physical experimental model and key parameters met the actual conditions of the formation, the injection method, injection medium, injection-production ratio, and other parameters of the condensate gas reservoir were studied. Research on the injection method showed that the top injection method had a lower gas-oil ratio and higher condensate oil recovery. The study of injection medium showed that the production effect of carbon dioxide (CO2) injection was the best injection medium, and the maximum recovery rate of condensate oil was 95.11%. The injection-production ratio study showed that the injection-production ratio was approximately inversely proportional to the recovery factor of condensate gas and approximately proportional to the recovery factor of condensate oil. When the injection-production ratio was 1 : 1, the maximum recovery rate of condensate oil was 83.31%. In summary, in the later stage of gas injection development of the Yaha condensate gas reservoir, it was recommended to choose the development plan of CO2 injection at the top position with an injection-production ratio of 1 : 1. This research can not only provide guidance for the later formulation of gas injection plans for Yaha condensate gas reservoirs but also lay a foundation for the research of gas injection migration characteristics of other condensate gas reservoirs. |
| format | Article |
| id | doaj-art-1fbeb144a7564a5cb30f2463d3a378ff |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-1fbeb144a7564a5cb30f2463d3a378ff2025-02-03T06:10:47ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/76989707698970Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas ReservoirYiming Wu0Kun Yao1Yan Liu2Xiangyun Li3Mimi Wu4Ronghong Cheng5Bo Wang6Research Institute of Exploration and Exploitation, Petro-China Tarim Oilfield Company, Korla 841000, ChinaResearch Institute of Exploration and Exploitation, Petro-China Tarim Oilfield Company, Korla 841000, ChinaResearch Institute of Exploration and Exploitation, Petro-China Tarim Oilfield Company, Korla 841000, ChinaCNPC USA Corporation, Beijing 100028, ChinaResearch Institute of Exploration and Exploitation, Petro-China Tarim Oilfield Company, Korla 841000, ChinaResearch Institute of Exploration and Exploitation, Petro-China Tarim Oilfield Company, Korla 841000, ChinaPetroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, CanadaA condensate gas reservoir is an important special oil and gas reservoir between oil reservoir and natural gas reservoir. Gas injection production is the most commonly used development method for this type of gas reservoir, but serious retrograde condensation usually occurs in the later stages of development. To improve the recovery efficiency of condensate oil in the middle and late stages of production of a condensate gas reservoir, a gas injection parameter optimization test study was carried out, taking the Yaha gas condensate reservoir in China as an example. On the premise that the physical experimental model and key parameters met the actual conditions of the formation, the injection method, injection medium, injection-production ratio, and other parameters of the condensate gas reservoir were studied. Research on the injection method showed that the top injection method had a lower gas-oil ratio and higher condensate oil recovery. The study of injection medium showed that the production effect of carbon dioxide (CO2) injection was the best injection medium, and the maximum recovery rate of condensate oil was 95.11%. The injection-production ratio study showed that the injection-production ratio was approximately inversely proportional to the recovery factor of condensate gas and approximately proportional to the recovery factor of condensate oil. When the injection-production ratio was 1 : 1, the maximum recovery rate of condensate oil was 83.31%. In summary, in the later stage of gas injection development of the Yaha condensate gas reservoir, it was recommended to choose the development plan of CO2 injection at the top position with an injection-production ratio of 1 : 1. This research can not only provide guidance for the later formulation of gas injection plans for Yaha condensate gas reservoirs but also lay a foundation for the research of gas injection migration characteristics of other condensate gas reservoirs.http://dx.doi.org/10.1155/2021/7698970 |
| spellingShingle | Yiming Wu Kun Yao Yan Liu Xiangyun Li Mimi Wu Ronghong Cheng Bo Wang Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir Geofluids |
| title | Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir |
| title_full | Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir |
| title_fullStr | Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir |
| title_full_unstemmed | Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir |
| title_short | Experimental Study on Enhanced Condensate Recovery by Gas Injection in Yaha Condensate Gas Reservoir |
| title_sort | experimental study on enhanced condensate recovery by gas injection in yaha condensate gas reservoir |
| url | http://dx.doi.org/10.1155/2021/7698970 |
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