Summary In difficult wellbores, the traditional method for deploying liners was to run drillpipe. The case studies discussed in this paper detail an alternative method to deploy liners in a single trip on the tieback string so the operator can reduce the overall costs of deployment. Previously, this was not often practical because the tieback string weight could not overcome the wellbore friction in horizontal applications. In each case, a flotation collar is required to ensure there is enough hookload for the deployment of the liner system. The flotation collars used are an interventionless design using a tempered glass barrier that shatters at a predetermined applied pressure. The glass debris is between 5 and 10 mm in diameter and can be easily circulated through the well without damaging downhole components. This is done commonly on a cemented liner and cemented monobore installations, but more rarely with openhole multistage completions. The authors of this paper have overseen thousands of cemented applications of this technology in Western Canada, the US onshore, Latin America, and the Middle East. For openhole multistage completions, the initial installation typically requires a ball drop activation tool at the bottom of the well to set the hydraulically activated equipment above. The effects of circulating the glass debris through one specific style of activation tool were investigated. Activation tools typically have a limited flow area and could prematurely close if the glass debris accumulates. Premature closing of the tool would leave drilling fluids in contact with the reservoir, potentially harming production. The testing was successfully completed, and the activation tool showed no signs of loading. This resulted in a full-scale trial in the field, where a 52-stage, openhole multistage fracturing liner was deployed using this technology. Through close collaboration with the operator, an acceptable procedure was established to safely circulate the glass debris and further limit the risk of prematurely closing the activation tool. This paper discusses the openhole and cemented multistage fracturing completion deployment challenges, laboratory testing, and field qualification trials for the single trip deployed system. It also highlights operational procedures and best practices when deploying the system in this fashion.

中文翻译：

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通过使用无干预浮选环单程部署多级完井衬管

总结 在困难的井眼中，部署衬管的传统方法是下入钻杆。本文讨论的案例研究详细介绍了在回接管柱上单程部署班轮的替代方法，因此运营商可以降低部署的总体成本。以前，这通常不实用，因为回接管柱重量无法克服水平应用中的井筒摩擦力。在每种情况下，都需要一个漂浮环来确保有足够的钩载荷来部署衬管系统。使用的浮选项圈是一种无干预设计，使用钢化玻璃屏障，在预定的施加压力下破碎。玻璃碎片的直径在 5 到 10 毫米之间，可以很容易地在井中循环，而不会损坏井下部件。这通常在胶结衬管和胶结单孔装置上完成，但很少用于裸眼多级完井。本文的作者已经监督了该技术在加拿大西部、美国陆上、拉丁美洲和中东的数千个巩固应用。对于裸眼多级完井，初始安装通常需要在井底放置落球激活工具，以将液压激活设备设置在上方。研究了通过一种特定类型的激活工具循环玻璃碎片的效果。激活工具通常具有有限的流动面积，如果玻璃碎屑积聚，可能会过早关闭。工具的过早关闭会使钻井液与储层接触，从而可能损害生产。测试成功完成，激活工具没有加载的迹象。这导致了该领域的全面试验，其中使用该技术部署了 52 级裸眼多级压裂衬管。通过与操作员的密切合作，建立了一个可接受的程序来安全地循环玻璃碎片并进一步限制过早关闭激活工具的风险。本文讨论了单程部署系统的裸眼和胶结多级压裂完井部署挑战、实验室测试和现场鉴定试验。它还强调了以这种方式部署系统时的操作程序和最佳实践。这导致了该领域的全面试验，其中使用该技术部署了 52 级裸眼多级压裂衬管。通过与操作员的密切合作，建立了一个可接受的程序来安全地循环玻璃碎片并进一步限制过早关闭激活工具的风险。本文讨论了单程部署系统的裸眼和胶结多级压裂完井部署挑战、实验室测试和现场鉴定试验。它还强调了以这种方式部署系统时的操作程序和最佳实践。这导致了该领域的全面试验，其中使用该技术部署了 52 级裸眼多级压裂衬管。通过与操作员的密切合作，建立了一个可接受的程序来安全地循环玻璃碎片并进一步限制过早关闭激活工具的风险。本文讨论了单程部署系统的裸眼和胶结多级压裂完井部署挑战、实验室测试和现场鉴定试验。它还强调了以这种方式部署系统时的操作程序和最佳实践。建立了一个可接受的程序来安全地循环玻璃碎片并进一步限制过早关闭激活工具的风险。本文讨论了单程部署系统的裸眼和胶结多级压裂完井部署挑战、实验室测试和现场鉴定试验。它还强调了以这种方式部署系统时的操作程序和最佳实践。建立了一个可接受的程序来安全地循环玻璃碎片并进一步限制过早关闭激活工具的风险。本文讨论了单程部署系统的裸眼和胶结多级压裂完井部署挑战、实验室测试和现场鉴定试验。它还强调了以这种方式部署系统时的操作程序和最佳实践。