Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well
Abstract The prediction of production capacity in tight gas wells is greatly influenced by the characteristics of gas–water two-phase flow and the fracture network permeability parameters. However, traditional analytical models simplify the nonlinear problems of two-phase flow equations to a large e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-09-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13202-023-01696-1 |
| _version_ | 1797275775967166464 |
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| author | Min Lv Bo Xue Weipeng Guo Jing Li Bin Guan |
| author_facet | Min Lv Bo Xue Weipeng Guo Jing Li Bin Guan |
| author_sort | Min Lv |
| collection | DOAJ |
| description | Abstract The prediction of production capacity in tight gas wells is greatly influenced by the characteristics of gas–water two-phase flow and the fracture network permeability parameters. However, traditional analytical models simplify the nonlinear problems of two-phase flow equations to a large extent, resulting in significant errors in dynamic analysis results. To address this issue, this study considers the characteristics of gas–water two-phase flow in the reservoir and fracture network, utilizes a trilinear flow model to characterize the effects of hydraulic fracturing, and takes into account the stress sensitivity of the reservoir and fractures. A predictive model for gas–water two-phase production in tight fractured horizontal wells is established. By combining the mass balance equation with the Newton–Raphson iteration method, the nonlinear parameters of the flow model are updated step by step using the average reservoir pressure. The accuracy of the model is validated through comparisons with results from commercial numerical simulation software and field case applications. The research results demonstrate that the established semi-analytical solution method efficiently handles the nonlinear two-phase flow problems, allowing for the rapid and accurate prediction of production capacity in tight gas wells. Water production significantly affects gas well productivity, and appropriate fracture network parameters are crucial for improving gas well productivity. The findings of this work could provide more clear understanding of the gas production performance from the fractured tight-gas horizontal well. |
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| id | doaj.art-b804fbd63af84187bf0b2974c75c1c12 |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-03-07T15:19:18Z |
| publishDate | 2023-09-01 |
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| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-b804fbd63af84187bf0b2974c75c1c122024-03-05T17:45:30ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662023-09-0114125526910.1007/s13202-023-01696-1Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal wellMin Lv0Bo Xue1Weipeng Guo2Jing Li3Bin Guan4No.1 Gas Production Plant, Shaanxi YanChang Petroleum Co., Ltd.No.1 Gas Production Plant, Shaanxi YanChang Petroleum Co., Ltd.No.1 Gas Production Plant, Shaanxi YanChang Petroleum Co., Ltd.Yanchang Petroleum Group Exploration CompanyYanchang Petroleum Group Exploration CompanyAbstract The prediction of production capacity in tight gas wells is greatly influenced by the characteristics of gas–water two-phase flow and the fracture network permeability parameters. However, traditional analytical models simplify the nonlinear problems of two-phase flow equations to a large extent, resulting in significant errors in dynamic analysis results. To address this issue, this study considers the characteristics of gas–water two-phase flow in the reservoir and fracture network, utilizes a trilinear flow model to characterize the effects of hydraulic fracturing, and takes into account the stress sensitivity of the reservoir and fractures. A predictive model for gas–water two-phase production in tight fractured horizontal wells is established. By combining the mass balance equation with the Newton–Raphson iteration method, the nonlinear parameters of the flow model are updated step by step using the average reservoir pressure. The accuracy of the model is validated through comparisons with results from commercial numerical simulation software and field case applications. The research results demonstrate that the established semi-analytical solution method efficiently handles the nonlinear two-phase flow problems, allowing for the rapid and accurate prediction of production capacity in tight gas wells. Water production significantly affects gas well productivity, and appropriate fracture network parameters are crucial for improving gas well productivity. The findings of this work could provide more clear understanding of the gas production performance from the fractured tight-gas horizontal well.https://doi.org/10.1007/s13202-023-01696-1Tight gasFractured horizontal wellGas–water two-phaseStress sensitivityProduction prediction |
| spellingShingle | Min Lv Bo Xue Weipeng Guo Jing Li Bin Guan Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well Journal of Petroleum Exploration and Production Technology Tight gas Fractured horizontal well Gas–water two-phase Stress sensitivity Production prediction |
| title | Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well |
| title_full | Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well |
| title_fullStr | Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well |
| title_full_unstemmed | Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well |
| title_short | Novel calculation method to predict gas–water two-phase production for the fractured tight-gas horizontal well |
| title_sort | novel calculation method to predict gas water two phase production for the fractured tight gas horizontal well |
| topic | Tight gas Fractured horizontal well Gas–water two-phase Stress sensitivity Production prediction |
| url | https://doi.org/10.1007/s13202-023-01696-1 |
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