Off-the-shelf CFD software is available from firms such as AEA Technology Engineering Software, a Waterloo, Ont., firm that recently introduced drillpressspeedschart and drillpressspeedschart an updated version of its CFX-TASCflow, which features a greatly enhanced cavitation model. Cavitation is the primary cause of pump failure, Jones points out. CFD software was more geared to hydraulic flows in pumps and inducers in turbomachinery when Alfa Laval embraced the technology. The payoff has been centrifugal pumps that create less sheer and can handle some pumping jobs previously reserved for positive displacement pumps.

movers--four drillpressspeedschart CTA 3612; Rotary Table--Emsco T-3750.DERRICK: Emsco/MH1157''; 1,333 kips.BOP SYSTEM: 10,000 psi.CRANES: Two 20 t.MOORING: Four x 20t.REMARKS: Formerly Hakuryu VI.WORK AREA: Bohai Bay.China Offshore OilSouthern Drilling Co. (COSDC)NAN HAI NO. 1RIG DESIGN: ETA/Robin Loh; Robray-300CONSTRUCTION: drillpressspeedschart Robin Loh, Singapore, 1976. Upgraded 1999.PERFORMANCE: Water depth--165''; Drilling depth--20,000''.QUARTERS: 100 persons.HULL: 213'' x 212'' x 27''.VARIABLE LOAD: 1,688 mt.HELIPORT: 75'' diameter, S-61.

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