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我队从事水文水井钻探、孔深一般300米左右,孔径230毫米至530毫米。钻机使用的φ114钻杆与石油钻的钻杆相同,这种钻杆抗压、抗拉、抗扭、抗弯等强度很大,钻进时不易折断,进尺较快,能打出深度大,口径大,质量高的水井。使用φ114钻杆优点很多,但钻机上一般却没有这种钻杆的专门打捞工具。井内一旦发生严重的坍塌、挤夹等事故时。只有用以往的老办法进行处理。为了防止和处理这类事故,我队钻探技师孙殿友同志构思了一种比较理想的反事故安全钻杆接头,后经毛敬云同志进一步整理和设计,比较完善,并制成了第一套反事故安全钻杆接头(见图)。经在地面和在邯郸市峰峰矿区自来水公司水源
Our team is engaged in the drilling of hydrology wells with a hole depth of about 300 meters and an aperture of 230 mm to 530 mm. The φ114 drill pipe used in drilling rigs is the same as the oil drill pipe. This kind of drill pipe has great strength such as compression resistance, tensile strength, torsion resistance, and bending resistance. It is not easy to break when drilling, and the footage is fast, and it can play a large depth and caliber. Large, high quality wells. There are many advantages to using the φ114 drill pipe, but there is generally no dedicated fishing tool for this type of drill pipe. Once a serious accident such as collapse or pinching occurred in the well. Only use the old methods to deal with. In order to prevent and deal with such accidents, Comrade Sun Dianyou, our drilling technician, conceived an ideal anti-accident safety drill pipe joint. After further consolidation and design by Comrade Mao Jingyun, it was relatively complete and made the first set of anti-accident safety. Drill pipe joint (see figure). After being on the ground and at the Fengfeng Mining Area of Handan City, the water supply company