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    • 43. 发明授权
    • Methods of forming acid particle based packers for wellbores
    • 形成用于井筒的基于酸性颗粒的包装机的方法
    • US08230936B2
    • 2012-07-31
    • US11424676
    • 2006-06-16
    • Stephen DaviesFrank EspinosaJohn W. StillJean-Louis Pessin
    • Stephen DaviesFrank EspinosaJohn W. StillJean-Louis Pessin
    • E21B33/12
    • E21B33/1208C09K8/516
    • Methods for creating packers at a desired location or locations within a wellbore for use in specific wellbore applications. A slurry of fluid medium and hydrolysable particulate matter is flowed to a downhole position and dehydrated. At this location, the particulate matter is released from the fluid medium and accumulated. The continual accumulation of the slurry and consequent deposition of particulate matter creates a degradable packer at the desired location within the wellbore. The particulate matter may be formed of an acid particle which may be removable, degradable, or hydrolysable under certain conditions of temperature, time, hydration, pH, and/or pressure. Either simultaneous with or subsequent to a wellbore activity, the packer is partially or completely removed from the wellbore.
    • 在井眼中的期望位置或位置处创建包装器以用于特定井眼应用的方法。 流体介质和可水解颗粒物质的浆液流入井下位置并脱水。 在这个位置,颗粒物质从流体介质中释放并积聚。 浆料的持续积累和随之而来的颗粒物质的沉积在井眼内的所需位置产生可降解的封隔器。 颗粒物质可以由在特定温度,时间,水合,pH和/或压力条件下可去除,可降解或可水解的酸性颗粒形成。 与井眼活动同时或之后,封隔器部分或完全从井筒中移除。