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    • 10. 发明授权
    • Anti-channeling pack-off particles used in a production section of an oil-gas well, and completion method and production method using such particles
    • 在油气井的生产部分中使用的防窜流包装颗粒,以及使用这种颗粒的完成方法和制造方法
    • US09080426B2
    • 2015-07-14
    • US13514494
    • 2010-12-10
    • Bailin PeiFeng Zhang
    • Bailin PeiFeng Zhang
    • E21B33/13E21B43/04C08L23/06C09K8/508C09K8/516
    • E21B43/04C08L23/06C08L2207/062C08L2312/00C09K8/508C09K8/516E21B33/13Y10T428/2982C08L25/02
    • Anti-channeling pack-off particles used in a production section of an oil-gas well, a completion method, and a production method are provided. The anti-channeling pack-off particles are macromolecule polymer particles having an average particle diameter of 0.05-1.0 mm and a real density of 0.8-1.4 g/cm3. The particles are compactly filled into a space of the oil-gas well, which is required to be filled and packed off so that there is no channeling path after filling, thus effectively pack-off or sectioning the oil-gas well into multiple, relatively independent regions for production from the oil-gas well, and thus improving the production efficiency of the oil-gas well. Even if a channeling path occurs, a very small flow of channeling fluid of a carrier medium will move some of the anti-channeling pack-off particles in a direction towards the channeling path and accumulate those particles until the channeling path is filled, thereby achieving favorable effects of anti-channeling, packing-off, and sectional flow control.
    • 提供了在油气井的生产部分中使用的防窜流包装颗粒,完井方法和生产方法。 抗通道包装颗粒是平均粒径为0.05-1.0mm,实际密度为0.8-1.4g / cm 3的高分子聚合物颗粒。 颗粒被紧密地填充到油气井的空间中,这需要填充和包装,使得在填充之后不存在通道,从而有效地将油气井打包或分成多个相对 独立的油气井生产区,从而提高了油气井的生产效率。 即使发生通道路径,载体介质的非常小的通道流动流将沿着朝向通道的方向移动一些反向通道的包装颗粒,并且累积这些颗粒,直到通道通道被填充,从而实现 反渠道,包装和截面流量控制的有利效果。