The Well Commander Mitigate drilling hazards with the industry s most versatile drilling valve Todd Gooding Business Development Manager
WELL COMMANDER A COMPLETE redesign of the ball-activated Centurion Circulating Valve (CCV): greatly improved reliability and increased applicability A drilling specialist s ideal tool for mitigating drilling hazards It is a drilling valve for use in operations that may encounter lost circulation, wellbore instability or hole-cleaning challenges. - 5-in., 7-in., 8 ¼-in. and limited 9 ½-in. OD sizes to cover every hole size - Short one-piece body with no internal threads (no bucking machine needed) - Features an oil-filled chamber with a floating piston that isolates the toolactivation mechanism from drilling fluids and debris
WELL COMMANDER A drilling valve that is activated via steel ball, offering a variety of options to the operator: Reduced pressure drop allows greatly increased pump rates to aid cuttings-beds removal with higher fluid-flow velocities Coarse lost-circulation or wellbore-strengthening materials can bypass sensitive downhole drilling tools and be easily placed in the loss zone Kill-weight fluid can be pumped in underbalanced or managed-pressure drilling applications before initiating a trip Excellent for hole cleaning during underreaming, hole-opening, or coring operations The tool can condition fluid at high flow rates in any drilling or displacement string Helps fill or drain the drillstring during trips to control surge and swab pressures and to enhance tripping operations by minimizing fluid discharge Often referred to as a Drilling By-Pass Sub Valve or Circulating Valve
WELL COMMANDER Primary Applications & Rig Time Savers Boosting Annular Velocity Cuttings and debris removal for enhanced hole cleaning, especially in ERD wells Higher flow rates above BHA restrictions Underreaming / milling operations Riser/BOP Washing Spotting LCM Eliminate trips for redress or open ended drillpipe Medium- and coarse-lcm compatible Other Applications Displacements and cleanouts Conditioning fluids Specialized coring techniques Through-bore maintained > Tandem run options > Free-point access > Tripping Dry Pipe The automatic locking mechanism gives enhanced options for improved pipe drainage or filling, especially with small pipe or restrictive BHAs
WELL COMMANDER - Improved Technical Limits See animation
WELL COMMANDER - Open and close sequence Main body Proprietary upper ball seat
WELL COMMANDER Utilizing Shut off Ball Main body Lower ball seat
Ball Catcher Technology Bypass Ball Catcher All Well Commander balls are collected in the ball catcher Through-bore maintained Access below the tool for smaller-ball-activated tools Option to activate tools independently Select wireline access below Well Commander Note: accessibility may depend on wireline tool dimensions and number of balls in the ball catcher
WELL COMMANDER ByPass Ball Catcher
WELL COMMANDER Technical Data WELL COMMANDER (size in.) 9½ 8¼ 7 5 Material AISI 4145 AISI 4145 AISI 4145 AISI 4145 OD (in.) 9.50 8.25 7.00 5.00 Min ID Lower ball seat 2,40 2.40 1.985 1.610 Length (ft) 18.2 18.1 13.7 (incl. catcher) 11.8 (incl. catcher) Number of circulating ports (in. x in.) 5 5 5 (1.35 x 0.65) 5 (1.10 x 0.50) Total circulating area through ports (TFA) 6.43 sq. in. 6.43 sq. in. 3.93 sq. in 2.48 sq. in. Max circ rates (closed/open) 1344/1680 gpm 1344/1680 gpm 840/1050 gpm 672/840 gpm Opening/closing pressure (Operating and shut-off balls) 1,600psi (+/-20%) And 800 max 1,600psi (+/-20%) And 800 max 2,000psi (+/-20%) And 650 max 2,000psi (+/-20%) and 430 max Cycles (ball capacity of catcher) 7 (14) 7 (14) 7 (14) 7 (14) O.D. Opening / Closing Ball (in.) 2.500 2.500 2.125 (2 1/8) 1.760 O.D. BHA Shut-off Ball (in.) 2.430 2.430 2.063 Connection, Up standard tool (in.) 7-5/8 REG Box 6-5/8 REG Box 4 ½ IF Box (XT57 also) 1.698 (shot blasted) 3 ½ IF Box (NC38) Connection, Down (in.) 7-5/8 REG Pin 6-5/8 REG Pin 4 ½ IF Pin (XT57 also) 3 ½ IF Pin (NC38)
WELL COMMANDER Enhancements Well Commander enhancements over other multi-activation circulating tools and bypass systems Shorter one-piece body with no internal threads Activation sleeve housed in protected oil-filled chamber as a barrier against debris in solids-laden fluids Floating piston fitted to compensate hydrostatic pressures experienced downhole Improved exit-port design reduces erosion potential on the main body of the tool Rotational motion of the activation sleeve reduces friction and allows smoother operation Can be fitted with jets to enhance washing
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