PUP Riser Brush

The PUP* Riser Brush utilizes three aggressive stainless steel brush rings to remove debris from the marine riser or outer production riser ID. The design of the tool provides a flow path through the brush-ring carrier, with the major ity of the flow passing  through 65 in.2 (41,935 mm2) of flow area in the brush carrier, minimizing pressure drops above and below the tool.

Features and Benefits

• Safety Feature: The tool design incorporates an integral pup joint to facilitate tool pickup with standard drill-pipe elevators and slips
• Aggressive, non-rotating stainless steel brushes (synthetic brushes available)
• Workstring can be rotated and reciprocated with the PUP Riser Brush in the workstring
• Debris can be effectively circulated through and around the tool
• The large mandrel ID enhances circulation
• – Available in 133⁄8- through 24-in. OD
  – Large flow-through area reduces the probability of swabbing/surging in the hole or pulling out of the hole
  – Eliminates the need for a junk basket tool above the Riser Brush
  – Can be run as a stand-alone tool, and it is typically run in conjunction with the PUP Quick-Trip Boot Basket or PUP Finger Basket to protect the well from debris re-entering the wellbore while jetting the BOP