Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin
Centralized and group well deployment and factory-like fracturing techniques are adopted for low-permeability tight sandstone reservoirs in the Sulige Gasfield, Ordos Basin, so as to realize its efficient and economic development. However, environmental protection is faced with grim situations becau...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2015-11-01
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| Series: | Natural Gas Industry B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854016000115 |
| _version_ | 1797283359604342784 |
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| author | Mingfang He Xuan'ang Lai Ningjun Li Yuanxiang Xiao Lei Shen Xiaorui Liu Zhanguo Ma Yajuan Wang |
| author_facet | Mingfang He Xuan'ang Lai Ningjun Li Yuanxiang Xiao Lei Shen Xiaorui Liu Zhanguo Ma Yajuan Wang |
| author_sort | Mingfang He |
| collection | DOAJ |
| description | Centralized and group well deployment and factory-like fracturing techniques are adopted for low-permeability tight sandstone reservoirs in the Sulige Gasfield, Ordos Basin, so as to realize its efficient and economic development. However, environmental protection is faced with grim situations because fluid delivery rises abruptly on site in a short time due to centralized fracturing of the well group. Based on the characteristics of gas testing after fracturing in this gas field, a fracturing flowback fluid recovery and treatment method suitable for the Sulige Gasfield has been developed with the landform features of this area taken into account. Firstly, a high-efficiency well-to-well fracturing flowback fluid recovery and reutilization technique was developed with multi-effect surfactant polymer recoverable fracturing fluid system as the core, and in virtue of this technique, the treatment efficiency of conventional guar gum fracturing fluid system is increased. Secondly, for recovering and treating the end fluids on the well sites, a fine fracturing flowback fluid recovery and treatment technique has been worked out with “coagulation and precipitation, filtration and disinfection, and sludge dewatering” as the main part. Owing to the application of this method, the on-site water resource utilization ratio has been increased and environmental protection pressure concerned with fracturing operation has been relieved. In 2014, field tests were performed in 62 wells of 10 well groups, with 32980 m3 cumulative treated flowback fluid, 17160 m3 reutilization volume and reutilization ratio over 70%. Obviously, remarkable social and economical benefits are thus realized. |
| first_indexed | 2024-03-07T17:30:35Z |
| format | Article |
| id | doaj.art-ef449889e1514146961edf4bdf717106 |
| institution | Directory Open Access Journal |
| issn | 2352-8540 |
| language | English |
| last_indexed | 2024-03-07T17:30:35Z |
| publishDate | 2015-11-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Natural Gas Industry B |
| spelling | doaj.art-ef449889e1514146961edf4bdf7171062024-03-02T18:10:19ZengKeAi Communications Co., Ltd.Natural Gas Industry B2352-85402015-11-012546747210.1016/j.ngib.2015.09.024Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos BasinMingfang He0Xuan'ang Lai1Ningjun Li2Yuanxiang Xiao3Lei Shen4Xiaorui Liu5Zhanguo Ma6Yajuan Wang7State Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaState Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi, 710018, ChinaCentralized and group well deployment and factory-like fracturing techniques are adopted for low-permeability tight sandstone reservoirs in the Sulige Gasfield, Ordos Basin, so as to realize its efficient and economic development. However, environmental protection is faced with grim situations because fluid delivery rises abruptly on site in a short time due to centralized fracturing of the well group. Based on the characteristics of gas testing after fracturing in this gas field, a fracturing flowback fluid recovery and treatment method suitable for the Sulige Gasfield has been developed with the landform features of this area taken into account. Firstly, a high-efficiency well-to-well fracturing flowback fluid recovery and reutilization technique was developed with multi-effect surfactant polymer recoverable fracturing fluid system as the core, and in virtue of this technique, the treatment efficiency of conventional guar gum fracturing fluid system is increased. Secondly, for recovering and treating the end fluids on the well sites, a fine fracturing flowback fluid recovery and treatment technique has been worked out with “coagulation and precipitation, filtration and disinfection, and sludge dewatering” as the main part. Owing to the application of this method, the on-site water resource utilization ratio has been increased and environmental protection pressure concerned with fracturing operation has been relieved. In 2014, field tests were performed in 62 wells of 10 well groups, with 32980 m3 cumulative treated flowback fluid, 17160 m3 reutilization volume and reutilization ratio over 70%. Obviously, remarkable social and economical benefits are thus realized.http://www.sciencedirect.com/science/article/pii/S2352854016000115Ordos BasinSulige GasfieldEnvironmental protectionMultiwell clusterFlowback fluidWell-to-well reutilizationRecoverable fracturing fluidWater standardTreatment processEnd fluid treatment |
| spellingShingle | Mingfang He Xuan'ang Lai Ningjun Li Yuanxiang Xiao Lei Shen Xiaorui Liu Zhanguo Ma Yajuan Wang Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin Natural Gas Industry B Ordos Basin Sulige Gasfield Environmental protection Multiwell cluster Flowback fluid Well-to-well reutilization Recoverable fracturing fluid Water standard Treatment process End fluid treatment |
| title | Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin |
| title_full | Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin |
| title_fullStr | Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin |
| title_full_unstemmed | Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin |
| title_short | Recovery and treatment of fracturing flowback fluids in the Sulige Gasfield, Ordos Basin |
| title_sort | recovery and treatment of fracturing flowback fluids in the sulige gasfield ordos basin |
| topic | Ordos Basin Sulige Gasfield Environmental protection Multiwell cluster Flowback fluid Well-to-well reutilization Recoverable fracturing fluid Water standard Treatment process End fluid treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2352854016000115 |
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