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在莫斯科国立地质勘探大学实验室对热力剥离碎岩方法进行的试验研究表明,不同类型岩石(岩浆岩、沉积岩、变质岩)的抗拉强度均随加热温度的升高而降低,且降低幅度较大,因此钻进速度明显提高。岩石破碎的形式与温度有关,当温度为500~600K时破碎是在组成岩石的矿物颗粒(晶粒)内部进行的;当温度超过600K时,破碎是在矿物颗粒间进行的。技术比较先进并有发展前景的加热升温方法是火焰喷射法、电子束法、等离子法和激光法。影响热力钻进发展的主要问题是没有合适的加热升温装置和碎岩工具,建议对此进行研究和开发。
The experimental study on thermal stripping and crushing methods in the laboratory of the National University of Geosciences in Moscow shows that the tensile strength of different types of rocks (magmatic rocks, sedimentary rocks and metamorphic rocks) decreases with the increase of heating temperature, Big, so the drilling speed is obviously improved. The form of rock fragmentation depends on temperature. When the temperature is 500-600 K, crushing is carried out inside the mineral grains (grains) that make up the rock. When the temperature exceeds 600 K, the crushing is carried out between the mineral grains. More technologically advanced and promising heating heating method is the flame spray method, electron beam method, plasma method and laser method. The main problem that affects the development of thermal drilling is the lack of suitable heating and cooling devices and rock breaking tools. It is suggested that this be researched and developed.