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绳索取心钻进技术是目前较先进的技术,而软地层、水敏性地层以及软硬互层和强研磨性地层是目前我国绳钻技术不能普遍推广的主要因素之一,它们对绳钻技术推广的影响主要表现在没有与之相适应的高效长寿命钻头;当阳石膏矿地层就属于这一类型的地层。为改变该矿区钻探落后面貌,我公司决定在该矿进行绳钻试验。为解决石膏矿地层开展绳钻试验的关键问题——钻头,我们曾多方联系,未能解决。后知局地质研究所正在研制复合片钻头,且已进行了多年孔
Rope coring drilling technology is currently more advanced technology, and soft formation, water-sensitive strata and hard and soft interbedded layer and strong abrasive formations is currently China’s rope drilling technology can not be widely promoted one of the main factors that they rope The impact of technology promotion is mainly reflected in the absence of high-performance long-life drill bit; Dangyang gypsum mine strata belong to this type of strata. In order to change the backwardness of drilling in the mine, our company decided to carry out rope drilling test in the mine. In order to solve the key problem of rope drilling test in gypsum mine strata - drill bit, we have many contacts and can not be solved. After known as Institute of Geology is developing composite chip bit, and has been for many years hole