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Cement slurry optimization and assessment of additives according to a proposed plan

机译：根据拟议计划优化水泥浆并评估添加剂

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Wellbore cementing is an essential part of every completion plan. The primary target of a cement job is zonal isolation and avoiding formation fluids to invade the well. Failure of cements in this important task result in disasters, significant financial damages and many more consequences. Good Cement slurry design is the key factor of having a gas resistant cement column. The aim of the study was to optimize slurry formulations following a determined checklist of criteria. The performance of two anti-gas migration and thixotropic agents were also assessed. As the final stage of the slurry optimization plan the results were verified using fluid migration analysis (FMA) test. According to the results, total gas migration flow rate of cement slurry optimized using the presented checklist was recorded as 0.23 ml/min. It was also observed that thixotropic agents improved gel strength profile, filtration control, waiting on cement time (WOC), critical hydration time and cement transition time significantly. (C) 2015 Elsevier B.V. All rights reserved.
机译：井眼固井是每个完井计划的重要组成部分。固井作业的主要目标是地层隔离，并避免地层流体侵入井中。水泥在这一重要任务中的失败会导致灾难，重大的经济损失以及更多后果。良好的水泥浆设计是拥有耐气水泥塔的关键因素。该研究的目的是按照确定的标准清单优化浆液配方。还评估了两种抗气体迁移和触变剂的性能。作为泥浆优化计划的最后阶段，使用流体迁移分析（FMA）测试验证了结果。根据结果​​，使用提出的清单优化的水泥浆的总气体迁移流速记录为0.23 ml / min。还观察到触变剂显着改善了凝胶强度曲线，过滤控制，等待水泥时间（WOC），临界水化时间和水泥转变时间。 （C）2015 Elsevier B.V.保留所有权利。

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