Research and application of supporting technologies for improving success rate of water injection well testing

To address the challenges of test instrument obstruction and the suboptimal deployment of concentric stratified water injection in the Subei complex fracture block oilfields, an innovative approach involving the use of a hollow rod for pipe cleaning was introduced. This method focused on two key are...

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Main Author: XU Guochen, LIU Xiaowen
Format: Article
Language:zho
Published: Editorial Department of Petroleum Reservoir Evaluation and Development 2023-12-01
Series:Youqicang pingjia yu kaifa
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Online Access:https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252630060-17977469.pdf
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author XU Guochen, LIU Xiaowen
author_facet XU Guochen, LIU Xiaowen
author_sort XU Guochen, LIU Xiaowen
collection DOAJ
description To address the challenges of test instrument obstruction and the suboptimal deployment of concentric stratified water injection in the Subei complex fracture block oilfields, an innovative approach involving the use of a hollow rod for pipe cleaning was introduced. This method focused on two key areas: the implementation of a flowback preventing water dispenser and the application of chemical sand control technology to maintain the cleanliness of the water injection pipe. In addition, a polymer gel profile control system was designed to mitigate the disparities between layers, aiming to minimize the influence of stratum grade differences on measurement and adjustment processes. This suite of supporting technologies has been applied to testing wells a total of thirteen times. The on-site tests have demonstrated that this approach is effective in preventing the obstruction of testing instruments and in simplifying the deployment process for layered water injection. Notably, the success rate of testing wells for these annual supporting measures reached 100 %, marking a significant achievement. Furthermore, the overall success rate of concentric layered water injection wells increased from 74.4 % to 84.4 %. The implementation of this method offers a dual advantage of reducing costs and enhancing efficiency, particularly in the context of optimizing fine water injection.
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spelling doaj-art-a03e50d6745c449ab470454d8c005e402025-08-20T03:19:19ZzhoEditorial Department of Petroleum Reservoir Evaluation and DevelopmentYouqicang pingjia yu kaifa2095-14262023-12-0113677378010.13809/j.cnki.cn32-1825/te.2023.06.008Research and application of supporting technologies for improving success rate of water injection well testingXU Guochen, LIU Xiaowen0Taizhou Oil Production Plant, Sinopec East China Oil & Gas Company, Taizhou, Jiangsu 225300, ChinaTo address the challenges of test instrument obstruction and the suboptimal deployment of concentric stratified water injection in the Subei complex fracture block oilfields, an innovative approach involving the use of a hollow rod for pipe cleaning was introduced. This method focused on two key areas: the implementation of a flowback preventing water dispenser and the application of chemical sand control technology to maintain the cleanliness of the water injection pipe. In addition, a polymer gel profile control system was designed to mitigate the disparities between layers, aiming to minimize the influence of stratum grade differences on measurement and adjustment processes. This suite of supporting technologies has been applied to testing wells a total of thirteen times. The on-site tests have demonstrated that this approach is effective in preventing the obstruction of testing instruments and in simplifying the deployment process for layered water injection. Notably, the success rate of testing wells for these annual supporting measures reached 100 %, marking a significant achievement. Furthermore, the overall success rate of concentric layered water injection wells increased from 74.4 % to 84.4 %. The implementation of this method offers a dual advantage of reducing costs and enhancing efficiency, particularly in the context of optimizing fine water injection.https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252630060-17977469.pdf|concentric stratified water injection|low testing success rate|hollow rod cleaning|sand control|flowback preventing water dispenser|polymer gel profile control
spellingShingle XU Guochen, LIU Xiaowen
Research and application of supporting technologies for improving success rate of water injection well testing
Youqicang pingjia yu kaifa
|concentric stratified water injection|low testing success rate|hollow rod cleaning|sand control|flowback preventing water dispenser|polymer gel profile control
title Research and application of supporting technologies for improving success rate of water injection well testing
title_full Research and application of supporting technologies for improving success rate of water injection well testing
title_fullStr Research and application of supporting technologies for improving success rate of water injection well testing
title_full_unstemmed Research and application of supporting technologies for improving success rate of water injection well testing
title_short Research and application of supporting technologies for improving success rate of water injection well testing
title_sort research and application of supporting technologies for improving success rate of water injection well testing
topic |concentric stratified water injection|low testing success rate|hollow rod cleaning|sand control|flowback preventing water dispenser|polymer gel profile control
url https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252630060-17977469.pdf
work_keys_str_mv AT xuguochenliuxiaowen researchandapplicationofsupportingtechnologiesforimprovingsuccessrateofwaterinjectionwelltesting