Drilling & Completion

Rotary Kelly

Rotary Kelly
Product description: Kelly is main driver of the whole drill string. It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole.
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Features and Benefits

● Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHn and a minimum average Charpy impact value of 40 ft-lbs;

● Ends and drive sections, IDs and connections machined and inspected to API specifications;

● Ultrasonic inspection is performed on all sections;

● Shipped in a protective steel-cased scabbard;

When ordering please specify:

● Kelly type (square or hexagonal);

● nominal size and overall length;

● Upper and lower connections.