Tool Introduction

The safety joint is connected to the top end of the layered fracturing operation column, which is a reverse buckle. Once the column is stuck in the well, the left-hand thread of the safety joint can be disengaged by rotating the column clockwise. After removing the upper column, the well repair and salvage operation can be carried out.

Structural characteristics

① Full diameter, suitable for later pitching and other assignments;

② Left turn connection thread design ensures reliable release.

operation

Full joint is a type of left-hand joint used in layered fracturing operation strings, connected to the top of the operation string. Once the string fails to lift up, the left-hand thread of the safety joint can be disengaged by rotating the string clockwise, and the upper string can be removed before carrying out well repair and salvage operations; Cannot transmit right-handed torque.

technical parameter