Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin
Located in the Sichuan Basin, the Yuanba Gasfield is the deepest marine sour gas field among those developed in China so far. Its biohermal gas reservoir of the Upper Permian Changxing Fm is characterized by ultra depth, high content of hydrogen sulfide, medium–low porosity and permeability, and sma...
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| Aineistotyyppi: | Artikkeli |
| Kieli: | English |
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KeAi Communications Co., Ltd.
2016-12-01
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| Sarja: | Natural Gas Industry B |
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| Linkit: | http://www.sciencedirect.com/science/article/pii/S2352854017300396 |
| _version_ | 1827265493355986944 |
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| author | Jin Xu |
| author_facet | Jin Xu |
| author_sort | Jin Xu |
| collection | DOAJ |
| description | Located in the Sichuan Basin, the Yuanba Gasfield is the deepest marine sour gas field among those developed in China so far. Its biohermal gas reservoir of the Upper Permian Changxing Fm is characterized by ultra depth, high content of hydrogen sulfide, medium–low porosity and permeability, and small reservoir thickness. Economic evaluation on it shows that horizontal well drilling is the only way to develop this gas reservoir efficiently and to reduce the total development investment. At present, the petroleum engineering technology for this type of ultra-deep sour gas reservoir is less applied in the world, so an ultra-deep horizontal well is subject to a series of petroleum engineering technology difficulties, such as safe and fast well drilling and completion, mud logging, well logging, downhole operation, safety and environmental protection. Based on the successful development experience of the Puguang Gasfield, therefore, Sinopec Southwest Petroleum Engineering Co., Ltd. took the advantage of integrated engineering geology method to carry out specific technical research and perform practice diligently for 7 years. As a result, 18 key items of technologies for ultra-deep sour gas reservoirs were developed, including horizontal-well drilling speed increasing technology, horizontal-well mud logging and well logging technology, downhole operation technology, and safety and environmental protection technology. These technologies were applied in 40 wells during the first and second phases of productivity construction of the Yuanba Gasfield. All the 40 wells have been built into commercial gas wells, and the productivity construction goal of 3.4 billion m3 purified gas has also been achieved. These petroleum engineering technologies for ultra-deep sour gas fields play a reference role in exploring and developing similar gas reservoirs at home and abroad. |
| first_indexed | 2024-03-07T17:51:47Z |
| format | Article |
| id | doaj.art-606ba11c164241d1ab291461de3d240b |
| institution | Directory Open Access Journal |
| issn | 2352-8540 |
| language | English |
| last_indexed | 2025-03-22T04:02:50Z |
| publishDate | 2016-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Natural Gas Industry B |
| spelling | doaj.art-606ba11c164241d1ab291461de3d240b2024-04-28T10:02:22ZengKeAi Communications Co., Ltd.Natural Gas Industry B2352-85402016-12-013655256210.1016/j.ngib.2017.05.005Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan BasinJin XuLocated in the Sichuan Basin, the Yuanba Gasfield is the deepest marine sour gas field among those developed in China so far. Its biohermal gas reservoir of the Upper Permian Changxing Fm is characterized by ultra depth, high content of hydrogen sulfide, medium–low porosity and permeability, and small reservoir thickness. Economic evaluation on it shows that horizontal well drilling is the only way to develop this gas reservoir efficiently and to reduce the total development investment. At present, the petroleum engineering technology for this type of ultra-deep sour gas reservoir is less applied in the world, so an ultra-deep horizontal well is subject to a series of petroleum engineering technology difficulties, such as safe and fast well drilling and completion, mud logging, well logging, downhole operation, safety and environmental protection. Based on the successful development experience of the Puguang Gasfield, therefore, Sinopec Southwest Petroleum Engineering Co., Ltd. took the advantage of integrated engineering geology method to carry out specific technical research and perform practice diligently for 7 years. As a result, 18 key items of technologies for ultra-deep sour gas reservoirs were developed, including horizontal-well drilling speed increasing technology, horizontal-well mud logging and well logging technology, downhole operation technology, and safety and environmental protection technology. These technologies were applied in 40 wells during the first and second phases of productivity construction of the Yuanba Gasfield. All the 40 wells have been built into commercial gas wells, and the productivity construction goal of 3.4 billion m3 purified gas has also been achieved. These petroleum engineering technologies for ultra-deep sour gas fields play a reference role in exploring and developing similar gas reservoirs at home and abroad.http://www.sciencedirect.com/science/article/pii/S2352854017300396Sichuan BasinYuanba GasfieldLate PermianBiohermSour gas reservoirUltra-deep horizontal wellPetroleum engineeringSafetyEnvironmental protection |
| spellingShingle | Jin Xu Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin Natural Gas Industry B Sichuan Basin Yuanba Gasfield Late Permian Bioherm Sour gas reservoir Ultra-deep horizontal well Petroleum engineering Safety Environmental protection |
| title | Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin |
| title_full | Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin |
| title_fullStr | Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin |
| title_full_unstemmed | Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin |
| title_short | Practices and prospect of petroleum engineering technologies in ultra-deep sour gas reservoirs, Yuanba Gasfield, Sichuan Basin |
| title_sort | practices and prospect of petroleum engineering technologies in ultra deep sour gas reservoirs yuanba gasfield sichuan basin |
| topic | Sichuan Basin Yuanba Gasfield Late Permian Bioherm Sour gas reservoir Ultra-deep horizontal well Petroleum engineering Safety Environmental protection |
| url | http://www.sciencedirect.com/science/article/pii/S2352854017300396 |
| work_keys_str_mv | AT jinxu practicesandprospectofpetroleumengineeringtechnologiesinultradeepsourgasreservoirsyuanbagasfieldsichuanbasin |