ReAct Clean Out Valve

The ReAct Clean Out Valve unloads mud and cleans up the wellbore as an integral part of the completion string.

ReAct Clean Out Valve product on stands, with a wall of Completion Tools products in the background
Description

Certain sections of some wellbores, particularly laterals, require many sections of sand screens to prevent the influx of sand into the completion. The great cost associated with this hardware and rig time for installation of the completion can be dramatically reduced by only completing a short section of the motherbore with screens. However, the success of this may be jeopardized due to mud and solids unloading through the screens and permanently plugging them off.

The ReAct™ Clean Out Valve (RCOV) presents large, open flow ports for unloading drilling mud, solids, or lost-circulation material (LCM). Following a delay of up to 150 days and once the well flow is clean and stable, a ReAct electronic timer system actuates a mechanism that allows well pressure to flood an atmospheric chamber and provide a large closing force to shut off these flow ports. A chamber containing a tracer fluid is opened at this time and gives a surface indication that the tool has functioned.

In so doing, the clean well flow is now directed through the sand screens in the main bore for the remainder of the lifetime of the well.

The device is an integral part of the tubing string and features premium threaded connections. The timer features two electronic units that are independent of each other for full redundancy.

A manual override feature is provided within the RCOV and can be actuated by wireline/coiled tubing intervention. A prong will unlock the ported sleeve from the hydraulic piston assembly, allowing the ported sleeve to be positioned manually to the closed position.

Features

  • Accurate time delay mechanism
  • Independent backup electronics
  • Mechanical override
  • Large flow areas
  • Available with tracer pocket for activation confirmation
  • Field-proven electronics
  • Delayed closure for up to 150 days

Benefits

  • Increased cleanup of the wellbore
  • Enhances well production
  • Minimizes plugging of sand screens
  • Reduces length of sand screens required in completion

Applications

  • Deployed with sand screens.
  • Cleanup across multilateral junctions
Specifications

ReAct Clean Out Valve Specifications

Tool size 6.625 in.
End connections 6⅝-in. premium
Material 80 ksi
OD 7.675 in. max.
ID 3.50 in. min.*
Length 92.00 in.
Flow area through ports 48 in.2
Tensile rating 465,000 lb
Working pressure rating 6,000 psi
Temperature rating Up to 135 °C  
Time delay Programmable up to 178 days
Actuating force per 1,000 psi 14,800 lb

*Larger ID can be supplied upon request.

Other sizes and ratings are available upon request.

Resources
  • ReAct Clean Out Valve Data Sheet

  • ReAct Clean Out Valve Eliminates Plugging of Screens in the North Sea Case Study

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