新技术的推行和管理工作的改进，是提高效率的关键。我队21号钻机，就是由于抓住了这个关键。而从五七年开始几乎日日完成和超额完成钻探任务，很少出事故。最近又创造了10天钻进316公尺和14台班钻进202公尺的新纪录（其中0—80公尺为黄土流砂粘土夹砾石层，80—110公尺为风化砂质页岩。以下均为砂岩页岩互层）。 The promotion of new technologies and management work is the key to improving efficiency. Our team on the 21st drilling rig, is due to grasp this key. From the beginning of the five or seven years, it almost completed its task of drilling and overcompensated it with few accidents. It has recently created a new record of drilling 202 meters at 316 meters for 10 days and drilling 14 classes (of which 0-80 meters are gravel layers of loess sand sand clay and 80-110 meters of weathered sandy shale. The following are sandstone shale interbed).