Introduction：

The surface iar is a mechanical downhole jar designed for fishing operations, capable of performing downward jarring only. This tool allows for adjustment of the impact force at the wellsite, delivering powerful and stable jarring performance. It enables rapid and effective resolution of stuck pipe incidents, such as drill string jamming or obstruction, during fishing and coring operations.

Features and Benefits：

★ The impact force can be directly adjusted at the wellhead, providing convenient and precise operation.

★ Purely mechanical structure delivers a powerful, stable, and reliable impact force.

★ It enables rapid and effective resolution of stuck pipe incidents during fishing and coring operations.