DX SURFACE BUMPER JAR
Surface bumper jar is releasing stuck for down hole tools on the ground, It apply to release stuck which need downward jarring like key slot、shrink neck、fall off block、sticking to suck etc. it also can relieve down hole fishing tools. Surface bumper jar is working on wellhead, no matter what part was stuck of drill stem、slips down hole tools stuck、fishing tools stuck、or testing、well repairing、well washing tools stuck, it all can use surface bumper jar to release stuck. DX surface bumper jar is a new type mechanical surface bumper jar, it overcome its former friction type’s defect like slips easy to burn、adjusting not exact, it can adjust jarring release force at any time, and easy、exact、stable to adjust.
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