Hevi-Wate Drill Pipe is the industry standard for an intermediate-weight drill stem member, and is available in standard, spiraled and non-magnetic designs, making it useful in a number of applications. It has drill pipe dimensions for easier handling. Hevi-Wate Drill Pipe utilizes a unique center upset or wear pad to increase tube life while reducing hole drag and differential sticking problems.

• Long tool joints provide ample space to recut the connections, reduce the wear rate on the OD and extend the service life
• The center upset protects the tube from OD wear by keeping the tube away from the hole wall, while at the same time reducing the risk of differential sticking
• The API Bore Back Box feature is standard for the box connection on 4 inch Hevi-Wate Drill Pipe and larger, helping to extend the service life of the connection
• Cold rolling the thread roots on all Hevi-Wate Drill Pipe connections increases the connection’s ability to resist fatigue cracking
• Hevi-Wate Drill Pipe can be picked up with the drill pipe elevators for fast, efficient handling on the rig floor

• Hardbanding placed on the tool joints and center wear pad will increase abrasion resistance and extend service life
• The API Stress-relief Groove feature on the pin connection for sizes 4 inches and larger

• An effective weight-on-bit member in extended reach, horizontal and conventional directional well designs
• Improves directional control by reducing torque and drag
• The center upset helps reduce the risk of differential sticking

• Use as an active weight-on-bit member in place of a portion of the drill collar string to reduce torque and shorten trip time
• Hevi-Wate Drill Pipe can be used to provide a portion of the anticipated drilling weight when using soft formation PDC rock bits
• Hevi-Wate Drill Pipe should not be used as bit weight in vertical holes larger than those listed in the table below.

• 18 to 21 joints of Hevi-Wate Drill Pipe run above the drill collars will reduce the risk of drill pipe fatigue failure

• Hevi-Wate Drill Pipe should be used in the crossover area of the drill stem when the bending strength ratio (ratio of I/C or section modulus) between the drill collars and the drill pipe exceeds 5.5. Hevi-Wate Drill Pipe will provide a gradual transition in stiffness between the drill collars and drill pipe, reducing fatigue damage to the drill pipe. Refer to table “Bending Strength Ratios” for maximum drill collar size to be run directly below Hevi-Wate Drill Pipe. Also refer to the “Drilling Assembly Handbook” for additional information