Improvement Components for Electro-Hydraulic Pulse System

生产油气藏需要使用许多工艺。这些过程可能会在井筒内分解或产生碎片，造成堵塞。堵塞是昂贵的，为了避免堵塞，定期维护是必要的。由Blue Spark开发的一种新工具是有线应用刺激脉冲或WASP。这种高功率声波装置用于水力压裂后井筒应用，当井筒射孔周围的油流被碎屑降解和结垢时，WASP的工作原理是在水和盐(盐水)的传输介质中产生高功率电液流量(EHD)。产生的机械波的大小足以粉碎油井套管射孔中积聚的水垢。它通过重新打开由射孔药包压实并釉化的相邻井岩来改善流动，延长井筒生命周期。WASP是一项确保现有油井高效运转的技术，直到所有可用储量被开采出来。Blue Spark是WASP的开发商，他们已经在许多国际环境中成功部署了该系统，并在2015年获得了两个最佳石油和天然气技术开发奖。 Blue Spark正在寻求与南艾伯塔省理工学院(SAIT)进行第二个合作应用研究项目，以开发对WASP特定组件的改进。WASP使用的方法在销毁井筒周围的碎屑方面非常有效，但对WASP组件来说，这一过程非常困难。电极和绝缘衬垫(防止污染物到达电极)在过程中受到电弧产生和降解的不利影响。这些部件的退化归因于井下环境的极端条件、EHD波过程的破坏性机理以及对电极保持相对清洁和与工具周围环境机械耦合的要求。

Many processes are used to produce an oil and gas reservoir. These processes can break down or create debris inside the wellbore creating blockages. Blockages are expensive and to avoid them, regular maintenance is necessary. A new tool developed by Blue Spark is the Wireline Applied Stimulation Pulse or WASP. This high-power acoustic wave device is used for post-fracking wellbore applications when the flow of oil is degraded by debris and scale build-up around wellbore perforations The WASP works by generating a high power electro-hydraulic discharge (EHD) within a transmission medium of water and salt (brine). The mechanical waves produced have a magnitude that pulverizes the built-up scale in the perforations of the well casing. It improves flow by re-opening adjacent well rock glazed and compacted by perforation charges, extending the wellbore lifecycle. WASP is a technology that ensures that existing wells function efficiently until all the available reserves are extracted. Blue Spark is the WASP developer and they have successfully deployed the system in many international settings and won two awards for the best technology development for oil and gas in 2015. Blue Spark is seeking a second collaborative applied research project with the Southern Alberta Institute of Technology (SAIT) to develop improvements to specific components of the WASP. The method that WASP employs is very effective at destroying debris around the well casing but the process is extremely hard on the WASP components. The electrodes and an isolating liner (that prevents contaminants from reaching the electrodes) are adversely impacted by the arc generation and degrade during the process. The degradation of these components is attributed to the extreme conditions in the downhole environment, the destructive mechanics of the EHD wave process and the requirement for electrodes to remain relatively clean and mechanically coupled to the environment around the tool.