论文部分内容阅读
钻孔电视是一种专用的工业电视，主要用于对清水钻孔的孔壁和孔底进行观察，从而直观的进行地质分层、寻找矿脉和了解孔内故障等情况。在勘察部门中运用钻孔电视，可以直观的解决一些钻探、物探所难以解决的问题。如在工程地质工作中，采用钻探取岩芯的方法来查明地质情况，但在破碎带、裂隙或松软岩层中钻进，往往由于采取率低，对工程地质条件的分析判断带来很大困难，用钻孔电视设备直接观察，就有可能克服上述困难，对破碎带、裂隙发育情况、产状要素等作出较正确的定性定量分析，提供较可靠的资料。又如在水文地质工作中，可在清水钻孔中划分含水层种类和判断孔内故障，对已投产的供水井可以检查滤水管损坏及堵塞情况，因此在勘察部门运用钻孔电视是有实际意义的。
Bored TV is a dedicated industrial television, mainly used for observation of the hole wall and hole bottom of clear water drilling, so as to intuitively conduct geological stratification, find veins and understand the situation of hole failure. The use of drilling television in surveying departments can intuitively solve some problems that drilling and geophysical exploration can not solve. For example, in engineering geological work, the method of drilling cores is used to ascertain geological conditions. However, drilling in fractured zones, fractures or soft rock formations often leads to large analysis and judgment of engineering geological conditions due to low adoption rate Difficulties, direct observation with the drilling television equipment, it is possible to overcome the above difficulties, the fracture zone, the development of fissures, factors such as production to make a more accurate qualitative and quantitative analysis to provide more reliable information. In another example, in hydrogeological work, the types of aquifers can be divided into clear water boreholes and faults in the wells can be determined. Damaged and blocked drainage pipes can be checked for the water supply wells which have already been put into operation. Therefore, it is practicable to use drilling television in the investigation departments meaningful.