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CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
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The Well Commander
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander
Mitigate drilling hazards with the industry’s most versatile drilling valve.
Spot pills and increase circulation exactly where you want, with no impact on the BHA, logging tools or the bit……..
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Features• Run in Directional Drilling Assembly above
turbine/mud motor or other BHA components• Generous flow-through area via multiple ports• Ball catcher has a 14 or 18 ball capacity (7 or
9 complete cycles)• Patented Ball Seat Technology utilizes the
same-size ball opens and closes the ports to simplify operating procedures
• Available in 5”, 7” 8-1/4” & 9-1/2” OD w. variety of connections inc. standard & premium
• No internal tool connections• Tool activation mechanism locks into open or
closed position• Tool activation mechanism isolated from
circulating fluids• Ball catcher permits smaller ball and/or
limited wire-line access below tool• Optional shut-off ball prevents coarse LCM
from entering sensitive bottom hole components
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Benefits• Easy spotting of LCM or WSM while drilling• Cuttings-beds removal, enhanced hole cleaning
and efficient fluid displacement by boosting annular velocities in conjunction with pipe rotation
• Will not function prematurely from high circulation or tripping rates
• Saves tripping time; multiple trips without redressing the tool
• Simplifies reverse circulation through the tool• Boosts annular velocities above an under-reamer
for enhanced hole cleaning• Elevates circulation rates with minimal pressure
drop• Functions in water or invert-emulsion drilling
fluids as well as clear brines• Provides jetting functionality in the BOP• Permits running other ball-activated tools below• Permits limited wire-line access for free-point
indicators or other elements• Promotes filling or draining the work-string while
tripping4
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Function• Activation ball is pumped down and
lands on ball seat• Pressure is applied which compresses
the internal spring and indexes the tool
Features M-I SWACO patented Ball Seat Technology
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Function• Activation ball is pumped down and
lands on ball seat• Pressure is applied which compresses
the internal spring and indexes the tool
• The ball seat deforms and the ball is ejected into the Bypass Ball Catcher
• The circulation ports are now open to the annulus allowing increased circulation
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Function• Activation ball is pumped down and
lands on ball seat• Pressure is applied which compresses
the internal spring and indexes the tool
• The ball seat deforms and the ball is ejected into the Bypass Ball Catcher
• The circulation ports are now open to the annulus allowing increased circulation
• The BHA Shut-Off Ball can be dropped if required to isolate the lower BHA
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander Function• Activation ball is pumped down and
lands on ball seat• Pressure is applied which compresses
the internal spring and indexes the tool
• The ball seat deforms and the ball is ejected into the Bypass Ball Catcher
• The circulation ports are now open to the annulus allowing increased circulation
• The BHA Shut-Off Ball can be dropped if required to isolate the lower BHA
• To resume drilling to Activation ball is pumped to the tool and pressure applied
• As the Activation Ball shears through the tool it clears the BHA Shut-Off ball
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Advanced Ball Catcher Function• The Bypass Ball Catcher collects the
Activation and BHA Shut-Off Balls
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Advanced Ball Catcher Function• The Bypass Ball Catcher collects the
Activation and BHA Shut-Off Balls• A smaller ball is dropped to activate
another BHA component (under-reamer)
• The ball passes through the Ball Seats without effect
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Advanced Ball Catcher Function• The Bypass Ball Catcher collects the
Activation and BHA Shut-Off Balls• A smaller ball is dropped to activate
another BHA component (under-reamer)
• The ball passes through the Ball Seats without effect
• The ball passes through the Bypass Ball Catcher to activate the lower BHA component
• Restricted access with slick-line tools is also possible with balls in the catcher
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander - Animation
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander - Key Design Features
13
• Short one piece mandrel with no internal connections• Seals remain stationary and port slides past sleeves for increased
reliability• Rotational motion of activation sleeve reduced internal friction• Disc springs provide high compressive strength• Tool internals are oil filled in workshop• Floating Piston equalized tool internal pressure to ensure no ingress of
drilling mud and solids• Floating Piston design prevents possibility of hydraulic locking• Exit port design reduced erosion potential• 4330V material ensures tools high strength confirmed by Finite
Element Analysis
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.14
Well Commander Size 9½” Size 8¼” Size 7” Size 5”
Material 4330V 4330V 4330V 4330V
OD 9.50” 8.25” 7.00” 5.00”
Min ID Lower ball seat 2,40” 2.40” 1.985” 1.610”
Length (inc. Ball Catcher) 18.2’ 18.1’ 13.7’ 11.8’
Number & Diameter of circulating ports
5 5 5 x 1.35” 5 x 1.10”
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) 840/1050 gpm 672/840gpm
Opening/closing pressure (+/-20%) 2,000 psi 2,000 psi
Cycles (ball capacity of catcher) 7 (14) 7 (14) 7 (14) 7 (14)
O.D. Opening / Closing Ball 2.500” 2.500” 2.125” 1.760”
O.D. BHA Shut-off Ball 2.430” 2.430” 2.063” 1.698”
Connection, Up (standard tool) 7-5/8” REG Box 6-5/8” REG Box 4 ½” IF Box 3 ½” IF Box
Connection, Down 7-5/8” REG Pin 6-5/8” REG Pin 4 ½” IF Pin 3 ½” IF Pin
Well Commander - Technical Data
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Total runs to date 44Max cycles on one tool 14 total, 28 balls: multiple tripsMax deviation at tool 90ºMax bottom-hole temperature 212º F (100º C)Max lbs/gal OBM 13.88 lb/gal (1.67 sg)Max lbs/gal WBM 13.85 lb/gal (1.66 sg)Max pump rate through tool 18.8 bpm (2989 L/min)Operations Milling, LCM spotting, AV boosting, drilling Activity Areas North Sea, UK and AlaskaTotal reported circulating time on valve 89 hours before re-
dressing
15
Case Histories – Dec 2009
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Well Commander SummaryA P P L I C A T I O N SExtended-reach drilling, spotting Lost-Circulation Material (LCM) or kill-weight fluid, under-reaming, underbalanced and managed-pressure drilling, conditioning or displacing at high flow ratesP R O B L E M SRestrictive BHAs can limit flow rate and annular velocity preventing effective hole cleaning while drilling or displacing wellbore fluids.These BHAs can also limit the size and concentration of LCM or Wellbore-Strengthening Material (WSM) that can be placed in troublesome zonesS O L U T I O N S The Well Commander mitigates drilling hazards by providing large bypass flow area and up to seven open-and-close cycles in one trip.E C O N O M I C SThe high flow rates reduce circulating time saving money when in spotting effective LCM/WSM treatments or kill-weight fluids and during displacements. High flow rates assist removal of cuttings beds preventing packoffs in extended-reach wells.E N V I R O N M E N T A LWork-strings can be drained or filled during tripping by bypassing BHA. Slugs can work at any angle avoiding spills and promoting a safer work environment.
CONFIDENTIAL INFORMATION ©2009 M-I L.L.C.
Questions?
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