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Innovative Through-Tubing Cement Packer Technique

机译:创新的通过管道水泥包装机技术

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Cement packers have been used for many years to access behind-pipe reserves above existing completions in wells with multiple completion targets. The basic function of the cement packer is to create a new annular barrier between an existing production packer and surface. They are typically used when it is not possible to set the production packer above the next zone of interest. Most cement packer operations are performed rigless to minimize cost. However, in many of these operations, coiled tubing or hydraulic workover services are used for the placement of the cement packer. Although these costs are significantly less than the cost of a rig, they still represent a major source of the total cost to perform the cement packer operation. In certain circumstances, coiled tubing and hydraulic workover services may not be possible because of space limitations, equipment availability, or cost restrictions. Elimination of these services can significantly reduce the cost and complexity of the operation, and improve the economics for the project. This paper presents a technique that can be used to perform a cement packer using only wireline (slickline and electric line) and pumping services. A case study of several successful cement packer recompletions using this technique is also presented at the end of the paper. The technique has been proven successful in wellbores with gas lift mandrels, in cases where the circulating holes for the cement packer are above or below the zone of interest, in producers and injectors, and in deviated wellbores.
机译:使用多年的水泥包装机已使用多年来访问在具有多个完成目标的井中的井中的现有完成后的储备。水泥包装机的基本功能是在现有的生产封隔器和表面之间创建新的环形屏障。通常在不可能将生产封隔器设置在下一个感兴趣区域之上时,通常使用它们。大多数水泥包装器操作都是严格的,以最大限度地减少成本。然而,在许多这些操作中,盘管或液压器械服务用于放置水泥封隔器。虽然这些成本明显低于钻机的成本,但它们仍然代表了执行水泥包装器操作的总成本的主要来源。在某些情况下,由于空间限制,设备可用性或成本限制,因此可能无法提供盘管和液压器服务。消除这些服务可以显着降低运营的成本和复杂性,并改善项目的经济学。本文介绍了一种可用于仅使用有线(SLICKLINE和电线)和泵送服务来执行水泥包装器的技术。使用该技术的几个成功的水泥封端重新完成使用该技术的案例研究也在纸张的末尾呈现。该技术已被证明是在霍韦尔伯勒斯的井筒中成功,其中水泥包装机的循环孔高于或低于感兴趣的区域,生产者和注射器,以及偏离井筒。

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