China Auto Density Control Double Pump Cementing Skid

Skid mounted cementing equipment is mainly utilized in offshore or remote areas on land, such as desert where the vehicles are difficult to reach. Three kinds of major cementing plunger pumps of TPA400, TPH400 or TPB600 and variety of plunger size can be selected according to different operating conditions. The unit is fully considered the anticorrosion for offshore application. Zone-II explosion-proof unit is also developed, for the characteris­tics of offshore platform
I.Overview
Model PCS-521B double pump cementing skid equipped with TPH400 pumps is new generation of cementing unit developed in recent years.
The input shaft of TPH400 pump is paralleled with centre line of engine, so the fluid end is at the rear of unit. This inline installation feature makes the maintenance and service of pumps easier.Compared with other cementing plunger pumps with same plunger size, TPH400 pump has features of maximum operation pressure, long stroke and high self-priming capacity.The high energy mixing system is powered by the transmissions PTOs. The skid is very compact, so it is applicable for the areas with strict requirements for space, such as offshore drilling platform, etc.
This unit is mainly utilized in cementing job, acidizing job, oil well pressure testing, and other fluid pumping job in offshore, on land or desert oilfield.
2. General specification
Max. working pressure: (14,000 PSi W/ 4" Fluid End)
Max. flow: 3.04m3/min (w/two 4 1/2" fluid ends)
Density range: 1.3-2.5g/cm3
Auto control precision: +/-0.02g/cm3
Mixing capacity: 0.3-2.3m3/min
Working ambient temperature: -20°C - 50°C
Overall dimension (mm): 7200(L) x 2500 (W) x 3250 (H)
Net weight: 22000kg

Technical specificationEngineCaterpillar C13 475 HP@2100 RPM (2 sets)Caterpillar C15 540 HP@2100 RPM (optional)Detroit S60 475HP@2100RPM (optional)TransmissionAllision 4700OFS (5 forward gears + neutral gear) (2sets)Hydraulic systemDriven by transmission PTO, closed loop for c-pumps, open loop for agitatorsTriplex pump (2 sets)Model/typeSERVA TPH400 Reciprocal, horizontal single action plunger pumpStroke8"(203.2mm)Max. B.H.P.600 BHP (447Kw)Gear ratio8.6:1Fluid End3 3/8"4"4 1/2"Rated pressure138MPa96MPa77MPaMax. flow0.86 m3/min1.2 m3/min1.52 m3/minACM-IV.1mixing systemMixerHigh energy recirculating mixerDry cement valveoff-center bulk cement metering valveMixing water pumpSERVA 4X3 (1.5 m3/min@0.78MPa)Recirculating/pressure pumpSERVA RA56 (3.7 m3/min@0.45MPa) (two sets)DensitometerMicro Motion 3" F300 non-radioactive densitometerComputer systemAB PLCOthersMixing tank12 BBL (2 m3)Fuel tank900 Ldisplacement tank2x10 BBL (2 x1.5 m3)Hydraulic oil tank170 L Air tank80L

3. FeaturesHigh energy recirculating jet mixing system.Off-center dry cement valve avoids bulk cement from choking.Emergency kill system of air inlet shutoff.Plunger pump overpressure protection system.SPS non-leakage packing system.Emergency mixing system.F300 Non-radioactive densitometer is easy to wash, safe and reliable.Simplify operation, adapts to working habits in oilfield.10" operation screen, convenient to monitor the working data.Portable wireless / wired data acquisition system available.ZONE-ll Explosion-proof kit is available for application to hazardous areas.Engine auxiliary cold start, pneumatic or hydraulic start available.Fan radiator or sea water heat exchanger is available.C7 auxiliary power unit is available.