For a reverse circulation operation using a dual-walled drill string, the initiating pressure will be at the exit from the blooey line that is connected to the top of the inside pipe flow space of the dual wall drill pipe. The calculation will proceed in reverse, down flow space of the ...
Direct calculation of compressibility factors After four decades of existence, the Standing-Katz z-factor chart is still widely used as a practical source of natural gas compressibility factors. As a result, there has been an apparent need for a simple mathematical description of that chart. Severa...
In this section, we show a complete flowchart for the calculation of physics loss functions for the engine problem. In Fig. 3, we show the flow chart for calculating the physics-informed loss for the present problem. Note that we have not shown the data loss and the self-adaptive weights...
enterprise; (2) Insert the model index into the ERP (Enterprise Resource Planning) self-made parts material scheduling module to convert the process capability; (3) the process capability is adjusted by bringing the environmental prediction index in one cycle into the process capability calculation....
The modeling and multi-energy flow calculation of an integrated energy system (IES) are the bases of its operation and planning. This paper establishes the models of various energy sub-systems and the coupling equipment for an electricity-gas-thermal IES, and an integrated multi-energy flow calcu...
Under the pressure of 110 MPa and 127 MPa, the theoretical calculation value of the GTSS is slightly higher than the actual value. The reason for this phenomenon is that the volume change of the spring cylinder and other cavities is not considered in the theoretical calculation. Figure 10 ...
Royalty Percentage and Calculation:You always want your royalties calculated off the wellhead, if they are not, sometimes there is a loophole for operators to make you share burden in "transportation" of the hydrocarbons. When in doubt, its highly recommended you seek competent legal counsel prior...
MQResistanceCalculation(self.adc.read(mq_pin)) time.sleep(self.CALIBRATION_SAMPLE_INTERVAL/1000.0) val = val/self.CALIBARAION_SAMPLE_TIMES # calculate the average value val = val/self.RO_CLEAN_AIR_FACTOR # divided by RO_CLEAN_AIR_FACTOR yields the Ro # according to the chart in the ...
The calculation results showed that the correlation coefficient R2 between the mineral volume content calculated with the optimized inversion method and the X-ray diffraction measurement results was between 0.80 and 0.89, which was higher than those of the multiple regression model based on core data ...
There is no calculation model for transition flow in Fluent, and therefore we set the theoretical model of fluid in the transition state as the laminar flow model for solution and calculation. Table 1. Related parameters of gas–water two-phase flow with 5% and 10% gas holdup. 4.1. Gas...