method,theexplicitequationsshouldbetheanalyticalsolutionsofanimplicitpolynomialequation,namely,implicitcurve-fittingmodel.Soitisveryimportanttoconstructthecurve-fittingmodelforthefastcalculationofsupercriticalCO2thermodynamicproperties.Thecurve-fittingmodelshouldbebadonthecurvefigure,andFig.1showsthepressure-enthalpychart....
CO2 gauge pressure, temperature, and carbonation level reference chartVol. Co22.12.22.32.42.52.62.72.82.93.03.1 Temp. F psi psi psi psi psi psi psi psi psi psi psi 33 5.0 6.0 6.9 7.9 8.8 9.8 10.7 11.7 12.6 13.6 14.5 34 5.2 6.2 7.2 8.1 9.1 10.1 11.1 12.0 13.0 14.0 15.0 35 5.6 6.6...
thetemperatureandpressureofcarbondioxidewillgreatlychangefromwellboretoreservoir. TheC02viscosityisanimportantfluidpropertyparameter.WefoundaC02viscositymodelbasedon stateequationintermsof thecomparabilityof尸-l 一 chartand chart.ThemodelintroducestheCardanformulatosolveandexpressesthesolutionas aform oftrigonometric...
Fig-4: The bottom temperature vs the injecting times Fig-5: TheCO2phase state chart of CAO-8 well under injecting Fig-6: The bottom pressure vs different injection rates Table 1 The parameters and process ofinjecting of CAO-8 Well Table 2 The data of forcasting pressure and temperature of...
A CO2viscositymodelandsolution SuJjngFanXiangyuChenLin (1.OilWellLoggingLaboratory.SouthwestPetroleumUniversity,Chengdu610500,China; 2.CentralSichuanOilandGasField, SouthwestOilandGasFieldCompany,CNPC,Suining629000,China) Intheprocessofgasinjection,thetemperatureandpressureofcarbondioxidewillgreatlychan gefrom...
thetemperatureandpressureofcarbondioxidewillgreatlychangefromwellboretoreservoir. TheC02viscosityisanimportantfluidpropertyparameter.WefoundaC02viscositymodelbasedon stateequationintermsof thecomparabilityof尸l- 一 chartand chart.ThemodelintroducestheCardanformulatosolveandexpressesthesolutionas aformoftrigonometric...
Ø "CHART" with 2 Alarm indicate the status of CO2 records up to 24 hours.Ø The Large LCD clearly displays the CO2, temperature, relative humidity and real-time clockØ "ECO" saving power function darken the LCD backlight (22:00pm to 6:00am).Ø 3-col...
Trend Chart Zoom:Below is a table that show the available Zoom Levels for all parameters CO2, as well as the duration of each division for corresponding Zoom Levels:Auto Detect Day/Night:The built-in Photo-Cell sensor can automatically detect whether it is Day or Ni...
19、s vs the different pressures and tempreturesFig-2:The CO2 densities vs the the different pressures and tempreturesFig-3: The CO2 viscosties vs the the different pressures and tempreturesFig-4: The bottom temperature vs the injecting timesFig-5: The CO2 phase state chart of CAO-8 well...
When the operation pressure is 20.0–24.0 MPa, the physical parameters of S–CO2 are presented in Fig. 3 [40]. It can be seen that for the S–CO2 pressure range of 20.0–24.0 MPa, with the S–CO2 temperature increased, the dynamic viscosity and thermal conductivity of S–CO2 both incre...