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,
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|