绳索取芯钻进方法,可借助于钢丝绳从钻具内把每回次所钻岩芯提取到地面,省去了许多上下钻具工序,从而能够较大幅度地提高纯钻率和台月效率,并带来一系列其他好处,尤其是深孔钻进,优越性更为明显.因此,在一些钻探技术发达的国家中,绳索取芯技术得到了较普遍地推广应用. 近年来,我国也开始推广应用这项新工艺,并取得了很好的经济效益.但在绳索取芯钻进过程中,由于钻头唇部厚度比普通钻头厚,钻头刻岩面积也 Cord coring drilling method, can be used by wire rope from the drill every time to drill the core extracted to the ground, eliminating the need for many up and down drilling process, which can greatly improve the rate of pure diamond and Taiwan efficiency , And bring a series of other benefits, especially deep hole drilling, the more obvious superiority.Therefore, in some countries with advanced drilling technology, rope coring technology has been more widely applied.In recent years, our country Began to promote the use of this new technology, and achieved good economic benefits.But in the coring process of rope coring, due to the thickness of the drill bit lip thicker than the average drill bit rock area