Research on optimal production distribution of tight sandstone gas reservoir
The determination of dynamic reserves is an important basis for rational production allocation. Based on the Yan’an Gas Field, the modified flowing material balance equation is established considering the changes of gas viscosity and compressibility. At the same time, a reasonable production allocat...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S235248472100915X |
| _version_ | 1819174483342131200 |
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| author | Jie He Xiangdong Guo Hongjun Cui Kaiyu Lei Yanyun Lei Lin Zhou Qinghai Liu Yushuang Zhu Linyu Liu |
| author_facet | Jie He Xiangdong Guo Hongjun Cui Kaiyu Lei Yanyun Lei Lin Zhou Qinghai Liu Yushuang Zhu Linyu Liu |
| author_sort | Jie He |
| collection | DOAJ |
| description | The determination of dynamic reserves is an important basis for rational production allocation. Based on the Yan’an Gas Field, the modified flowing material balance equation is established considering the changes of gas viscosity and compressibility. At the same time, a reasonable production allocation method for gas wells is developed. The result shows: ① μgCg decreases with pressure and increases with temperature. ② The error of the modified flowing material balance method is smaller compared with the flow material balance method, and the error is 1.25 %. ③ The great change of the production will affect the accuracy of the modified flow material balance method, especially the shut-in for a long time before the pressure drop production is calculated at a certain time, so the points with relatively constant should be selected as far as possible. ④ When the dynamic reserves are used for allocation, the initial decline rate decreases by 74.65 % on average, and the stable production period increases by 21.28 % and the stable production period increases by 1.79 % compared with the allocation method of open flow rate. ⑤ When there is a large error of dynamic reserves, it will lead to production deviation from the reasonable value. The findings of this study can help for the accurate evaluation of dynamic reserves and reasonable production allocation of tight gas wells in the Yan’an gas field, and is an important guide for the formulation of a rational plan for the gas reservoir and its economic and efficient development. |
| first_indexed | 2024-12-22T20:39:41Z |
| format | Article |
| id | doaj.art-408c225970ac4dfb9ccb8ee38a739ca6 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-12-22T20:39:41Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-408c225970ac4dfb9ccb8ee38a739ca62022-12-21T18:13:21ZengElsevierEnergy Reports2352-48472021-11-01771497156Research on optimal production distribution of tight sandstone gas reservoirJie He0Xiangdong Guo1Hongjun Cui2Kaiyu Lei3Yanyun Lei4Lin Zhou5Qinghai Liu6Yushuang Zhu7Linyu Liu8State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi’an, 710069, China; Corresponding authors.No. 1 Gas Production Plant, Yanchang Oilfield Oil and Gas Exploration Company, Yan’an 716000, ChinaNo. 1 Gas Production Plant, Yanchang Oilfield Oil and Gas Exploration Company, Yan’an 716000, ChinaNo. 1 Gas Production Plant, Yanchang Oilfield Oil and Gas Exploration Company, Yan’an 716000, ChinaNo. 1 Gas Production Plant, Yanchang Oilfield Oil and Gas Exploration Company, Yan’an 716000, ChinaState Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi’an, 710069, ChinaState Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi’an, 710069, ChinaState Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi’an, 710069, China; Corresponding authors.State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi’an, 710069, ChinaThe determination of dynamic reserves is an important basis for rational production allocation. Based on the Yan’an Gas Field, the modified flowing material balance equation is established considering the changes of gas viscosity and compressibility. At the same time, a reasonable production allocation method for gas wells is developed. The result shows: ① μgCg decreases with pressure and increases with temperature. ② The error of the modified flowing material balance method is smaller compared with the flow material balance method, and the error is 1.25 %. ③ The great change of the production will affect the accuracy of the modified flow material balance method, especially the shut-in for a long time before the pressure drop production is calculated at a certain time, so the points with relatively constant should be selected as far as possible. ④ When the dynamic reserves are used for allocation, the initial decline rate decreases by 74.65 % on average, and the stable production period increases by 21.28 % and the stable production period increases by 1.79 % compared with the allocation method of open flow rate. ⑤ When there is a large error of dynamic reserves, it will lead to production deviation from the reasonable value. The findings of this study can help for the accurate evaluation of dynamic reserves and reasonable production allocation of tight gas wells in the Yan’an gas field, and is an important guide for the formulation of a rational plan for the gas reservoir and its economic and efficient development.http://www.sciencedirect.com/science/article/pii/S235248472100915XProduction distributionTight gas reservoirYan’an gas fieldOrdos basinDynamic reserve |
| spellingShingle | Jie He Xiangdong Guo Hongjun Cui Kaiyu Lei Yanyun Lei Lin Zhou Qinghai Liu Yushuang Zhu Linyu Liu Research on optimal production distribution of tight sandstone gas reservoir Energy Reports Production distribution Tight gas reservoir Yan’an gas field Ordos basin Dynamic reserve |
| title | Research on optimal production distribution of tight sandstone gas reservoir |
| title_full | Research on optimal production distribution of tight sandstone gas reservoir |
| title_fullStr | Research on optimal production distribution of tight sandstone gas reservoir |
| title_full_unstemmed | Research on optimal production distribution of tight sandstone gas reservoir |
| title_short | Research on optimal production distribution of tight sandstone gas reservoir |
| title_sort | research on optimal production distribution of tight sandstone gas reservoir |
| topic | Production distribution Tight gas reservoir Yan’an gas field Ordos basin Dynamic reserve |
| url | http://www.sciencedirect.com/science/article/pii/S235248472100915X |
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