最近,在“地质与勘探”杂誌上发表了一系列的关于对鑽粒鑽进时岩石破坏原理的文章,大家的争论很多,意见也不很统一,这里发表一些我个人的意见。我们知道,鑽粒(包括铁砂和钢粒)在井底只可能有两种形状存在:破碎的和完整的。因此,也就只可能有两种基本的破坏岩石的方法:以破碎的鑽粒来破坏岩石,和以完整的鑽粒来破坏岩石。这样就必须阐明两个问题:一、破碎的鑽粒和完整的鑽粒是如何来破坏岩石的;二、在鑽粒鑽进实际生产过程中,鑽粒(包括铁砂和钢粒)主要是以什么样的形状(当然也就牵涉到以什么作用)来破坏岩石的。一、破碎的鑽粒和完整的鑽粒是如何来破坏岩 Recently, a series of articles on the principle of rock failure in the drilling of diamonds have been published in the magazine Geology and Exploration. There is a lot of controversy and the views are not uniform. Here are my personal opinions. We know that drill particles (including iron sand and steel particles) can only exist in two shapes at the bottom of the well: broken and complete. Therefore, there are only two basic methods of destroying the rock: destroying the rock with broken diamonds, and destroying the rock with intact drill bits. In this way, two issues must be clarified: First, how broken diamonds and intact drill grains destroy rocks; Second, in the process of drilling and drilling the actual production, the drill grains (including iron sand and steel grains) are mainly What kind of shape (of course, what role is involved) to destroy the rock. First, how broken diamonds and intact drill grains destroy rocks