API 7-1 Drilling Use Heave Weight Drill Pipe

LAKE Drill Collar has been approved by the NS-1 certification which is made from one-piece 4145H modified quenched and tempered steel. It designed for tough drilling environments in vertical and directional wells; for vertical wells, LAKE HWDP is a transition member; for directional holes it is a weight member and provides additional stiffness to prevent buckling.

Features and Benefits:

1. A centre upset or wear pad to increase tube life, reduce hole drag and differential sticking problems;

2. Connections are completed(phosphate coated) to protect them from the elements after machining and to help prevent galling uponinitial make-up;

3. Thread roots are cold rolled on API and H-90 connections. And pressed steel thread protectors are supplied for standard connections;

4. Hardbanding and Internal Coating can be provided on customer’s request.