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Drilling and well servicing equipment



DRILLING AND WELL SERVICING EQUIPMENT

 
PKNM, Ltd. manufactures drilling and well servicing equipment: Drill Collars, Kellys, HWDP, Non-magnetic Drill Collars,
Subs and Pup-joints.


PKNM, Ltd. has the certificates of the QMS conformity to API Spec. Q1, ISO 9001:2008 and licenses that give a right to put
monograms of API 7‑1. Also the company has the drill pipes, subs and pup-joints’ conformity certificates that meet the
Russian normative documents’ requirements.

 
The mechanical characteristics of Drill Collars, Kellys, and HWDP correspond to API Spec. 7 – 1.

 
MECHANICAL CHARACTERISTICS OF DRILL COLLAR, KELLY AND HWDP

OD, inch Ultimate Strength,
psi, min
Yield point,
psi, min
Relative elongation,
% min
Brinell Hardness,
НВW min

From 3 1/8

up to 6 7/8

140 000 110 000 13 285
From 7 up to 11 135 000 100 000 13 285

 

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