一项可防止试井车钢丝因超载断裂导致井下仪器落井的实用技术装置———试井车离合器自动摘挂装置,已由南阳石油机械厂研制成功,并于近期获得国家专利。在油田生产中,试井车完成井下作业后提升仪器时,有时会出现遇阻现象,悬挂井下仪器的钢丝常因负载超过自身承载能力而断裂,导 A practical technology device that can prevent the downhole instrument from falling down due to overloading and breaking of the steel wire of the test vehicle --- the automatic suspension device of the well test vehicle clutch has been successfully developed by Nanyang Petroleum Machinery Factory and obtained the national patent in the near future. In the production of oilfields, the well test vehicle sometimes encounters the phenomenon of resistance when the instrument is hoisted after it completes downhole operation. The steel wire hanging the downhole instrument often breaks due to the load exceeding its own carrying capacity