非常规/复杂油藏

可溶解夹头在中国的现场测试证明可以节省时间和成本

在非常规完井中测试的可溶解筒夹现场,垂直段每级平均运行时间为 32 分钟,水平段每级平均运行时间为 19 分钟。

可溶解夹头
图 1——可溶解夹头可承受高温和低温 (100-350°F),额定压力为 10,000 psi。

在过去的几年中,可溶性压裂塞通过减少干预需求并降低总体完井时间和成本,有效解决了非常规完井挑战。然而,市场上大多数可溶解压裂塞均由复杂的组件组成,这增加了它们在井下、增产过程中或在清理前未完全溶解时发生故障的可能性。这导致了对老一代可溶解塞的怀疑和挑战。

为了解决这些问题,Vertechs 推出了一种新型可溶解夹头,可以承受高温和低温 (100-350°F),压力等级为 10,000 psi,长度小于 2.5 英寸(图 1)。

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Unconventional/complex reservoirs

China Field Test of Dissolvable Collet Demonstrates Time and Cost Savings

A dissolvable collet field tested in an unconventional completion led to an average running time of 32 minutes per stage in a vertical section and 19 minutes per stage in the horizontal section.

dissolvable collet
Fig. 1—The dissolvable collet can withstand high and low temperatures (100–350°F) and has a pressure rating of 10,000 psi.

Over the past few years, dissolvable frac plugs have been effective in addressing unconventional completion challenges by reducing the need for intervention and decreasing overall completion time and cost. However, the majority of dissolvable frac plugs on the market are made up of complex components, which increase their likelihood of failing when run in hole, during stimulation, or not fully dissolving before cleanout. This has resulted in skepticism and challenges with the older generation of dissolvable plugs.

To address these issues, Vertechs introduced a new dissolvable collet that can withstand high and low temperatures (100–350°F), has a pressure rating of 10,000 psi, and is less than 2.5 in. in length (Fig.

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