Enhanced productivity of coal seam gas wells by continuous gas circulation

该项目旨在开发泡沫辅助连续气体循环，用于新井和现有煤层气井的降水。这种新方法的潜在好处包括提高天然气产量、更好地控制油井、降低成本和更好的环境效益。建议的解决方案消除了对机械泵的需求，这些机械泵目前用于脱水，并且由于气体和固体在生产井内积累而经常发生故障。持续的气体循环可以显著节省停机时间和维护成本。此外，减少现场维护将最大限度地减少对维护钻机的进入要求，这些维护钻机扰乱了油井所在的农村活动，从而缓解了当地交通，并减少了与油井修井相关的环境影响。

This project aims to develop foam assisted continuous gas circulation for dewatering new and existing coal seam gas wells. The potential benefits of this new method include enhanced gas production, better well control, reduced costs and better environmental effectiveness. The proposed solution eliminates the need for mechanical pumps which are currently used for dewatering, and which fail regularly due to gas and solids accumulation within the production wells. Continuous gas circulation could achieve significant savings in downtime and maintenance costs. In addition, reducing onsite maintenance will minimise access requirements for maintenance rigs which disrupt rural activities where the wells are located, thus easing local traffic and reduce the environmental impacts that are associated with well workovers.