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Drilling Jar Type BZ is full mechanical type drilling jar and releasing stuck tool. The Drilling Jar integrates the upward jarring with the downward jarring so that it can release from the tight pull or the sticking etc. during drilling. The load(jarring force)scope of the ...
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ipes mechanically. It owns some advantages of simple structure,reliable performance,high cutting efficiency.In order not to cut casings,tubing couplings,before run in hole,the cutter shall be kept away from collar position,if condition is allowed,it can be used with collar ...
General Introduction of Oilfield and Petroleum Equipments Drilling Tools Mechanical Fishing Jar Type JS70 The down hole jarring blow is adjustable without any rig floor adjustments necessary prior to the run. The tool can work in high temperature or high pressure deep well, ...