The drilling jar is designed and used to help solving drill string stuck incidents by applying push-pull loads on the selected part of the BHA.
Hydraulic Jars HJ Series
Maximum efficiency in wells with complex trajectory profiles and with high deviation from vertical, horizontal and slant wells, ERD wells.
Hydro-mechanical jars HMJ series
Down strokes use the mechanical part of the jar, while upward strokes use the hydraulic part with hydraulic delay.
The actuation force of the mechanical latch can be adjusted and is set during the assembly of the jar at the request of the customer.