多模式岩心钻探堵漏试验装置的构想及设计

The Conception and Design of Multi-Mode Core Drilling Leak Plugging Test Device

因钻孔内部情况千变万化,钻探堵漏至今仍是一项世界性技术难题,市场满足安全、便捷、可靠的堵漏产品不多,岩心钻探行业可进行相关数据测试的试验装置也不尽完善。在分析市场现有试验装置及相关专利的基础上,结合岩心钻探堵漏自身特点进行试验装置的构想及设计。该试验装置可方便快捷地实现单一缝宽试验、n条不同缝宽逐一试验、n条不同缝宽组合试验三种测试模式,每种模式仅一次填料装配就能实现整个流程,能在缝宽1mm~8mm、缝长35mm、缝深350mm的大尺度范围模拟地层缝隙,可测试收集裂缝宽度B、试验压力p、承压时间t、材料封堵深度L、滤失量V等试验数据,增加销“假堵”功能,利于科学钻探堵漏研究及数据评价。

Borehole plugging is still a worldwide technical problem.There are not many safe,convenient and reliable leak plugging products and the test equipment for related data test is not perfect.This study tries the concept and design of the core drilling leak-stopping test device.The test device can realize three test modes conveniently and quickly and simulate the formation fractures in a large scale range of 1-8 mm in width and 35 mm in length and 350 mm in depth.It can test and collect the test data of crack width B,test pressure P,bearing time T material plugging depth L and filtrate volume V,and eliminate fake plugging and is helpful to the research of plugging and data evaluation in scientific drilling.