【作者】 戴学恕； 鄢泰宁； 补家武； 叶敦范；

【Author】 Dai Xueshu;Yan Taining;Bu Jiawu;Ye Dunfan;China university of Geosciences;

【机构】 中国地质大学；

【摘要】 DDW钻探微机多功能监测系统由传感器、接口电路、工业微机、输出与报警设备组成。可随钻监测和记录钻进过程,对孔内异常工况报警,跟踪钻孔轨迹,从而改变凭经验打钻的现状,提高钻探效率,降低事故率,保证好的地质效果。更多还原

【Abstract】 In order to improve driling efficiency and ensure geological survey quality,undex assist financially of geologicl science-technical development fund a Drill Microcomputer Monitoring System had been developed.Which consists of 7 sensors,interface circuit,industrial micro-computer,output and alarm devices is successfully developed.With this system,9 ways of drilling parameters can be real-timely monitored and recorded while 4-6 drilling curves be drawn simultaneously.With the expert experience and constraint conditions that originally fed into the system and it can give out light and sound alarm.Besides the funtion of tracking well trajectory and predicting hiting the targit of derectional holes,the system also has the capacity of creating a database.With the information such as prompt in Chinese or English and curves,which shows on the screen,field staff can easily distinguish change of formations(hard,soft,integrated,fissured etc.) and predict the drilling in mineral deposits,thus ensure geological survey quality.It can also aid in optimizing drilling parameters and distinguishing some abnormal working conditions-in-hole including burning of bit,core jam and twist-offs pipe etc,therefor,drilling accidents reduced and penetration rate improved.This achievement being applyed to field cases in rcent years,not only is accident centage decreased by 12 points from the original centageand efficiency is raise by more than38%of meterage per rig-month,but also gain perfect geological survey quality,it was honored with "1992 national-class new product" and won MGMR’S second prize in 1993.更多还原