Solids Control

FEATURESBalanced Scroll Design thatincreases recovery capacity.High Centrifugal Force generatescentrifugal force of 500 Gs at itsoperating speed of 1,600 RPM whileprocessing up to 140 GPM.Efficient Operation processes up to140 GPM with a 6- to 10-micron cuton weighted mud systems; processesup to 250 gpm with a 5- to 7-microncut point on unweighted mud.Stainless Steel bowl, scroll compart-ment and cover to resist corrosionand abrasion. Tungsten Carbide Scroll Pointswith wide spacing flights at the narrow end create a finer layer ofconveyed solids for more uniformseparation under high G forces.

Precision Balanced to run at highRPMs for extended periods withgreater efficiency, minimizingmaintenance and downtime.Operating Safety Controls includeself-limiting vibration and torqueswitches to protect against cata-strophic failure.Engineered and Manufactured to established ISO 9001 standards.Variable Speed electro-hydraulicbackdrive is available as an optionfor the 414 Centrifuge.

The SWACO 414 Centrifuge delivers high performance and lowoperating costs for oilfield and industrial mud and fluidshandling applications. This highly efficient decanting cen-trifuge recovers 95% of barite and returns it to the active sys-tem, while rejecting finer, low-gravity solids. The advanceddesign of the stainless steel bowl and scroll maintains aneven layer of conveyed solids for more uniform separationand maximum solids control efficiency.

SWACOT414 CENTRIFUGEE

The SWACO 414 Centrifuge preci-sion equipment engineered to handlerugged oilfield service.

BENEFITS

FIELD-PROVEN RESULTS

Recovers 95% of barite, minimiz-ing costly additions while main-taining prescribed mud weights

Rejects finer, low gravity solidsfrom drilling fluids

Cost-efficient operation reducesdiscard volume versus dilution dis-placement alternatives 30% to 60%depending upon mud weights

Ideal for use with weighted orunweighted mud systems

Rugged construction and corrosion-resistant materials provide longservice life and low maintenancecosts in the toughest oilfield environments

Field test comparisons prove theSWACO 414 Centrifuge reduces discardvolume 30% to 60% (depending onmud weight) versus dilution/displace-ment alternatives. At higher mudweights, it reduces discard volume up to 45%.

Cost Efficiency414 Centrifuge Vs.Dilution/DisplacementMud Weights Increased Efficiency11 13 lb/gal 30%13 18 lb/gal 40% 60%18 lb/gal 45%

HOW IT WORKSThe heart of a SWACO Centrifuge isits high-speed, precision-balancedrotating stainless steel bowl. Insidethe bowl, a double lead spiral screwconveyor rotates in the same direc-tion as the bowl but at a slightlyslower RPM.

Feed slurry enters through a hol-low axle at the narrow end and is

distributed to the bowl. Centrifugalforce as high as 500 Gs at 1,600 RPMholds the slurry against the bowl wallin a pool. Trapped silt and sand-sized particles settle and spreadagainst the bowl wall where they arescraped and conveyed to the solidsunderflow discharge ports by thetungsten carbide-tipped scroll flights.Silt and sand particles exit damp, butwith no free liquid. The free liquidphase carries colloidal (clay sized) particles through the nonpluggingstainless steel and tungsten carbidehardfaced discharge ports. Wide spac-ing of the scroll flights at the narrowend of the centrifuge increase thebarite recovery capacity up to 95%,maximizing solids control efficiency.

SPECIFICATIONSBowl Size Length Width Height Weight hp

14 x 34 in. 95.4 in. 70 in. 34.1 in. 4,040 lbs 25 hp/356 x 864 mm 2,423 mm 1,778 mm 866 mm 1,832 kg 7.5 hp

1999 SWACO, A Division of M-I L.L.C. All rights reserved. SWACO is a registered trademark of M-I L.L.C.414 Centrifuge is a trademark of SWACO, A Division of M-I L.L.C.SW-6054 2.5M 9/99 Litho in U.S.A.

Liquid zone Drying zone

Liquid return to active Pool Beach Solids discard

Wholemud feed

This information is supplied solely for informational purposes and SWACO makes no guar-antees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale or Standard Terms of Equipment Rental.

A Smith/Schlumberger Company

P.O. Box 42842Houston, Texas 77242-2842Tel: 7133089455

18006540660Fax: 7133089463www.swaco.midf.com