الوصف

LHBZ mechanical drilling jar is a full mechanical drilling jar, it also can be used as fishing tool. It generates upward jarring as well as downward

jarring which can solve tight pull or sticking troubles during drilling. It is the first optional drilling jar for vertical well, deep well, directional well and

complicated well operations



The up-down jar tonnage can be adjusted for a large range.The drilling jar can be actuated by mechanical fully.The inner chamber can not produce high pressure.The change of oilliness can not impact jarring effect.The low sealing property can make the using life improve observably.The mounted special flexible joint can reduce the bending stress of jar body effectively.It should adopt the new special material as to insure the higher performance.It should be used for straight hole,deep hole,complicated hole and directional hole.