CLEANING EFFICIENCY EVALUATION OF MUD CAKE ADSORBED ON THE WELLBORE DURING THE CEMENTING PROCESS UNDER HIGH-TEMPERATURE CONDITIONS
To improve the cleaning efficiency during the cementing process in high-temperature and highpressure (HTHP) gas wells, a set of cleaning efficiency evaluation devices for flushing fluids was developed. Based on the downhole HTHP conditions of the LD10-1 block in the western South China Sea, the infl...
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| Veröffentlicht in: | Fresenius environmental bulletin 2023-03, Vol.32 (3), p.1742 |
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| container_title | Fresenius environmental bulletin |
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| creator | Luo, Ming Gao, Deli Liu, Shujie Xiao, Ping Li, Zhujun Wei, Anchao He, Lian Jiang, Donglei Fu, Qi Li, Chenglong Zeng, Chunmin Yang, Huanqiang |
| description | To improve the cleaning efficiency during the cementing process in high-temperature and highpressure (HTHP) gas wells, a set of cleaning efficiency evaluation devices for flushing fluids was developed. Based on the downhole HTHP conditions of the LD10-1 block in the western South China Sea, the influence of the annulus flow rate and flushing time of the flushing fluid on the cleaning efficiency was investigated by the evaluation device and numerical simulation method. The dosage of the key treatment agent W21L was optimized. The results show that the experimental method can well simulate the actual temperature and pressure difference conditions in the downhole, and the experimental repeatability is strong. Under the condition of constant flushing time and speed, the cleaning efficiency increases with increasing experimental temperature. When the flushing time is set to 15 minutes, the cleaning efficiency can reach 88.4% when the annulus flow rate is greater than 1.34 m/s and 76.8% when the flushing time is more than 25 minutes for a flushing speed of 0.75 m/s. For the cleaning agent W21L, the cleaning efficiency can reach 82.1% when the dosage is greater than 9%. The research results provide support for determining cementing process parameters to improve the cementing quality in the LD10-1 block. |
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Based on the downhole HTHP conditions of the LD10-1 block in the western South China Sea, the influence of the annulus flow rate and flushing time of the flushing fluid on the cleaning efficiency was investigated by the evaluation device and numerical simulation method. The dosage of the key treatment agent W21L was optimized. The results show that the experimental method can well simulate the actual temperature and pressure difference conditions in the downhole, and the experimental repeatability is strong. Under the condition of constant flushing time and speed, the cleaning efficiency increases with increasing experimental temperature. When the flushing time is set to 15 minutes, the cleaning efficiency can reach 88.4% when the annulus flow rate is greater than 1.34 m/s and 76.8% when the flushing time is more than 25 minutes for a flushing speed of 0.75 m/s. For the cleaning agent W21L, the cleaning efficiency can reach 82.1% when the dosage is greater than 9%. The research results provide support for determining cementing process parameters to improve the cementing quality in the LD10-1 block.</description><identifier>ISSN: 1018-4619</identifier><identifier>EISSN: 1610-2304</identifier><language>eng</language><publisher>Freising: Parlar Scientific Publications</publisher><subject>Annuli ; Cementing ; Cleaning ; Cleaning agents ; Dosage ; Efficiency ; Experimental methods ; Flow rates ; Flow velocity ; Flushing ; Gas wells ; High temperature ; Mathematical models ; Process parameters</subject><ispartof>Fresenius environmental bulletin, 2023-03, Vol.32 (3), p.1742</ispartof><rights>Copyright Parlar Scientific Publications Mar 2023</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids></links><search><creatorcontrib>Luo, Ming</creatorcontrib><creatorcontrib>Gao, Deli</creatorcontrib><creatorcontrib>Liu, Shujie</creatorcontrib><creatorcontrib>Xiao, Ping</creatorcontrib><creatorcontrib>Li, Zhujun</creatorcontrib><creatorcontrib>Wei, Anchao</creatorcontrib><creatorcontrib>He, Lian</creatorcontrib><creatorcontrib>Jiang, Donglei</creatorcontrib><creatorcontrib>Fu, Qi</creatorcontrib><creatorcontrib>Li, Chenglong</creatorcontrib><creatorcontrib>Zeng, Chunmin</creatorcontrib><creatorcontrib>Yang, Huanqiang</creatorcontrib><title>CLEANING EFFICIENCY EVALUATION OF MUD CAKE ADSORBED ON THE WELLBORE DURING THE CEMENTING PROCESS UNDER HIGH-TEMPERATURE CONDITIONS</title><title>Fresenius environmental bulletin</title><description>To improve the cleaning efficiency during the cementing process in high-temperature and highpressure (HTHP) gas wells, a set of cleaning efficiency evaluation devices for flushing fluids was developed. Based on the downhole HTHP conditions of the LD10-1 block in the western South China Sea, the influence of the annulus flow rate and flushing time of the flushing fluid on the cleaning efficiency was investigated by the evaluation device and numerical simulation method. The dosage of the key treatment agent W21L was optimized. The results show that the experimental method can well simulate the actual temperature and pressure difference conditions in the downhole, and the experimental repeatability is strong. Under the condition of constant flushing time and speed, the cleaning efficiency increases with increasing experimental temperature. When the flushing time is set to 15 minutes, the cleaning efficiency can reach 88.4% when the annulus flow rate is greater than 1.34 m/s and 76.8% when the flushing time is more than 25 minutes for a flushing speed of 0.75 m/s. For the cleaning agent W21L, the cleaning efficiency can reach 82.1% when the dosage is greater than 9%. The research results provide support for determining cementing process parameters to improve the cementing quality in the LD10-1 block.</description><subject>Annuli</subject><subject>Cementing</subject><subject>Cleaning</subject><subject>Cleaning agents</subject><subject>Dosage</subject><subject>Efficiency</subject><subject>Experimental methods</subject><subject>Flow rates</subject><subject>Flow velocity</subject><subject>Flushing</subject><subject>Gas wells</subject><subject>High temperature</subject><subject>Mathematical models</subject><subject>Process parameters</subject><issn>1018-4619</issn><issn>1610-2304</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqNTUsKwjAQDaKgqHcYcF1IW63tMiZTG2wTSRPFlbjQhYi_6gU8uSl4AN9m3mfeTIcMwiSkQRTTaddzGqbBNAmzPhk3zZl6JNE8SuIB-fASmZJqCZjnkktUfAe4YaVjVmoFOofKCeBshcBErc0CBXjfFghbLMuFNgjCmfZC63GsUNlWrY3mWNfglEADhVwWgcVqjYZZ5ztcKyHbF_WI9E6HS3Mc_-aQTHK0vAjuz9vjfWxe-_Pt_bz6aB_NM0ozOkvT-L-tL5SZRmQ</recordid><startdate>20230301</startdate><enddate>20230301</enddate><creator>Luo, Ming</creator><creator>Gao, Deli</creator><creator>Liu, Shujie</creator><creator>Xiao, Ping</creator><creator>Li, Zhujun</creator><creator>Wei, Anchao</creator><creator>He, Lian</creator><creator>Jiang, Donglei</creator><creator>Fu, Qi</creator><creator>Li, Chenglong</creator><creator>Zeng, Chunmin</creator><creator>Yang, Huanqiang</creator><general>Parlar Scientific Publications</general><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20230301</creationdate><title>CLEANING EFFICIENCY EVALUATION OF MUD CAKE ADSORBED ON THE WELLBORE DURING THE CEMENTING PROCESS UNDER HIGH-TEMPERATURE CONDITIONS</title><author>Luo, Ming ; Gao, Deli ; Liu, Shujie ; Xiao, Ping ; Li, Zhujun ; Wei, Anchao ; He, Lian ; Jiang, Donglei ; Fu, Qi ; Li, Chenglong ; Zeng, Chunmin ; Yang, Huanqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_27900905883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Annuli</topic><topic>Cementing</topic><topic>Cleaning</topic><topic>Cleaning agents</topic><topic>Dosage</topic><topic>Efficiency</topic><topic>Experimental methods</topic><topic>Flow rates</topic><topic>Flow velocity</topic><topic>Flushing</topic><topic>Gas wells</topic><topic>High temperature</topic><topic>Mathematical models</topic><topic>Process parameters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Luo, Ming</creatorcontrib><creatorcontrib>Gao, Deli</creatorcontrib><creatorcontrib>Liu, Shujie</creatorcontrib><creatorcontrib>Xiao, Ping</creatorcontrib><creatorcontrib>Li, Zhujun</creatorcontrib><creatorcontrib>Wei, Anchao</creatorcontrib><creatorcontrib>He, Lian</creatorcontrib><creatorcontrib>Jiang, Donglei</creatorcontrib><creatorcontrib>Fu, Qi</creatorcontrib><creatorcontrib>Li, Chenglong</creatorcontrib><creatorcontrib>Zeng, Chunmin</creatorcontrib><creatorcontrib>Yang, Huanqiang</creatorcontrib><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Fresenius environmental bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Luo, Ming</au><au>Gao, Deli</au><au>Liu, Shujie</au><au>Xiao, Ping</au><au>Li, Zhujun</au><au>Wei, Anchao</au><au>He, Lian</au><au>Jiang, Donglei</au><au>Fu, Qi</au><au>Li, Chenglong</au><au>Zeng, Chunmin</au><au>Yang, Huanqiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>CLEANING EFFICIENCY EVALUATION OF MUD CAKE ADSORBED ON THE WELLBORE DURING THE CEMENTING PROCESS UNDER HIGH-TEMPERATURE CONDITIONS</atitle><jtitle>Fresenius environmental bulletin</jtitle><date>2023-03-01</date><risdate>2023</risdate><volume>32</volume><issue>3</issue><spage>1742</spage><pages>1742-</pages><issn>1018-4619</issn><eissn>1610-2304</eissn><abstract>To improve the cleaning efficiency during the cementing process in high-temperature and highpressure (HTHP) gas wells, a set of cleaning efficiency evaluation devices for flushing fluids was developed. Based on the downhole HTHP conditions of the LD10-1 block in the western South China Sea, the influence of the annulus flow rate and flushing time of the flushing fluid on the cleaning efficiency was investigated by the evaluation device and numerical simulation method. The dosage of the key treatment agent W21L was optimized. The results show that the experimental method can well simulate the actual temperature and pressure difference conditions in the downhole, and the experimental repeatability is strong. Under the condition of constant flushing time and speed, the cleaning efficiency increases with increasing experimental temperature. When the flushing time is set to 15 minutes, the cleaning efficiency can reach 88.4% when the annulus flow rate is greater than 1.34 m/s and 76.8% when the flushing time is more than 25 minutes for a flushing speed of 0.75 m/s. For the cleaning agent W21L, the cleaning efficiency can reach 82.1% when the dosage is greater than 9%. The research results provide support for determining cementing process parameters to improve the cementing quality in the LD10-1 block.</abstract><cop>Freising</cop><pub>Parlar Scientific Publications</pub></addata></record> |
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| source | EZB-FREE-00999 freely available EZB journals |
| subjects | Annuli Cementing Cleaning Cleaning agents Dosage Efficiency Experimental methods Flow rates Flow velocity Flushing Gas wells High temperature Mathematical models Process parameters |
| title | CLEANING EFFICIENCY EVALUATION OF MUD CAKE ADSORBED ON THE WELLBORE DURING THE CEMENTING PROCESS UNDER HIGH-TEMPERATURE CONDITIONS |
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