我队在钻探工作中，为确保岩心采取率提高，以往都采用铁丝、碗片、石子、铁粒等卡取岩心。看到使用小圆柴棍卡岩心的经验后，我队各钻机即进行推广，效果良好，但其中还有些不足之处，即小圆柴往往都不直，制作困难，我队技术研究小组针对这一情况提出使用竹子卡岩心，经过试验效果常非好。 In our drilling work, in order to ensure the core rate to be taken up, our team used to take cores of wire, bowl, stone, iron particles and so on. After seeing the experience of using the small roundwood stick core, our rigs are carrying out the promotion with good results. However, there are some shortcomings, that is, the small roundwood is often not straight and the production is difficult. The team’s technical research team This situation raised the use of bamboo card core, after the test is often not good.