Method to Interpret Injection Profile of Water Injection Well Based on DTS
A method for interpreting the water injection profile based on Distributed Temperature Sensing (DTS) is proposed to address the technical challenges of diagnosing the water injection volume of each injection layer of water injection wells. Firstly, a temperature profile prediction model for water in...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Well Logging Technology
2024-08-01
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| Series: | Cejing jishu |
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| Online Access: | https://www.cnpcwlt.com/#/digest?ArticleID=5627 |
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| author | ZHANG Xiliang LI Ang WU Jie WANG Lijun ZUO Kai ZHANG Zhihu |
| author_facet | ZHANG Xiliang LI Ang WU Jie WANG Lijun ZUO Kai ZHANG Zhihu |
| author_sort | ZHANG Xiliang |
| collection | DOAJ |
| description | A method for interpreting the water injection profile based on Distributed Temperature Sensing (DTS) is proposed to address the technical challenges of diagnosing the water injection volume of each injection layer of water injection wells. Firstly, a temperature profile prediction model for water injection wells is established with considering the micro thermal effects. The influence of seven factors including water injection rate, water injection time, formation thermal conductivity etc. on the temperature profile is simulated and analyzed. Through orthogonal experiment analysis, it demonstrates that the sensitivity of temperature profile on different factors from strong to weak is water injection temperature, water injection time, water injection rate, wellbore radius, formation thermal conductivity, wellbore trajectory, formation permeability. Water injection temperature, water injection time, and water injection rate are the dominant parameters impacting the temperature profile of water injection wells. A simulated annealing (SA) algorithm is used to establish a DTS data inversion model for water injection wells. Using the inversion model, the DTS data of a field water injection well has been inverted and accurate water injection profile is obtained. The maximum inversion error of water absorption percentage of each layer is 14.25% and the average inversion error of water absorption percentage for all layers is 11.09% that validates the reliability of the inversion method in this paper. It can be seen that quantitative interpretation of water injection profiles can be achieved through DTS data inversion. It provides a direct basis for evaluating water injection effectiveness. |
| format | Article |
| id | doaj-art-8bf614fa4d6a4ca5a00ef3fc2aa56464 |
| institution | OA Journals |
| issn | 1004-1338 |
| language | zho |
| publishDate | 2024-08-01 |
| publisher | Editorial Office of Well Logging Technology |
| record_format | Article |
| series | Cejing jishu |
| spelling | doaj-art-8bf614fa4d6a4ca5a00ef3fc2aa564642025-08-20T01:55:26ZzhoEditorial Office of Well Logging TechnologyCejing jishu1004-13382024-08-0148453754710.16489/j.issn.1004-1338.2024.04.0141004-1338(2024)04-0537-11Method to Interpret Injection Profile of Water Injection Well Based on DTSZHANG Xiliang0LI Ang1WU Jie2WANG Lijun3ZUO Kai4ZHANG Zhihu5Engineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaEngineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaEngineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaEngineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaEngineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaEngineering Technology Branch, CNOOC Energy Development CO LTD, Tianjin 300452, ChinaA method for interpreting the water injection profile based on Distributed Temperature Sensing (DTS) is proposed to address the technical challenges of diagnosing the water injection volume of each injection layer of water injection wells. Firstly, a temperature profile prediction model for water injection wells is established with considering the micro thermal effects. The influence of seven factors including water injection rate, water injection time, formation thermal conductivity etc. on the temperature profile is simulated and analyzed. Through orthogonal experiment analysis, it demonstrates that the sensitivity of temperature profile on different factors from strong to weak is water injection temperature, water injection time, water injection rate, wellbore radius, formation thermal conductivity, wellbore trajectory, formation permeability. Water injection temperature, water injection time, and water injection rate are the dominant parameters impacting the temperature profile of water injection wells. A simulated annealing (SA) algorithm is used to establish a DTS data inversion model for water injection wells. Using the inversion model, the DTS data of a field water injection well has been inverted and accurate water injection profile is obtained. The maximum inversion error of water absorption percentage of each layer is 14.25% and the average inversion error of water absorption percentage for all layers is 11.09% that validates the reliability of the inversion method in this paper. It can be seen that quantitative interpretation of water injection profiles can be achieved through DTS data inversion. It provides a direct basis for evaluating water injection effectiveness.https://www.cnpcwlt.com/#/digest?ArticleID=5627water injection profiledistributed temperature sensing (dts)inversion modelwater injection wellsimulated annealing algorithmtemperature profile sensitivity |
| spellingShingle | ZHANG Xiliang LI Ang WU Jie WANG Lijun ZUO Kai ZHANG Zhihu Method to Interpret Injection Profile of Water Injection Well Based on DTS Cejing jishu water injection profile distributed temperature sensing (dts) inversion model water injection well simulated annealing algorithm temperature profile sensitivity |
| title | Method to Interpret Injection Profile of Water Injection Well Based on DTS |
| title_full | Method to Interpret Injection Profile of Water Injection Well Based on DTS |
| title_fullStr | Method to Interpret Injection Profile of Water Injection Well Based on DTS |
| title_full_unstemmed | Method to Interpret Injection Profile of Water Injection Well Based on DTS |
| title_short | Method to Interpret Injection Profile of Water Injection Well Based on DTS |
| title_sort | method to interpret injection profile of water injection well based on dts |
| topic | water injection profile distributed temperature sensing (dts) inversion model water injection well simulated annealing algorithm temperature profile sensitivity |
| url | https://www.cnpcwlt.com/#/digest?ArticleID=5627 |
| work_keys_str_mv | AT zhangxiliang methodtointerpretinjectionprofileofwaterinjectionwellbasedondts AT liang methodtointerpretinjectionprofileofwaterinjectionwellbasedondts AT wujie methodtointerpretinjectionprofileofwaterinjectionwellbasedondts AT wanglijun methodtointerpretinjectionprofileofwaterinjectionwellbasedondts AT zuokai methodtointerpretinjectionprofileofwaterinjectionwellbasedondts AT zhangzhihu methodtointerpretinjectionprofileofwaterinjectionwellbasedondts |