Wireline winch is used to fish the internal tube assembly full of cores out by using the lower overshot which goes into the bottom of holes. When caught in full leakage formations and dry holes, overshot or dry hole pumping mechanism is used to feed the internal tube assembly into the bottom of holes. The lower meters can be applied for borehole tests.
The overshot produced in our factory has reliable performance and long service life. We can provide various specifications of wireline winches with drilling depth of 1000~3000m and the engine of winch can be customized according to customer's specific requirements.