Relationships between the intensity of incident light, sample thickness, concentration and intensity of transmitted light are embodied in Beer s law and Lambert s law. [Pg.9]

The relationship between the pressure drop across the interface AP, the interfacial tension o, and the radius of the droplet, r, is [Pg.121]

The relationship between the flowrate (Q) towards the well and the pressure drawdown is approximately linear, and is defined by the productivity index (PI). [Pg.216]

The relationship between heat exchanger area and overall heat transfer coefficient U is given by [Pg.448]

The relationship between the tubing performance and reservoir performance is more fully explained in Section 9.5. [Pg.339]

The relationship between image contrast and resolution was modelled [Pg.211]

Figure 5.18 Relationship between heat load and level in simple and prefractionator sequences. (From Smith and linnhoff, Trans. IChemE, ChERD, 66 195, 1988 reproduced by permission of the Institution of Chemical Engineers.) |

In the example above the relationship between four activities of different duration is shown. In this case the critical path is indicated by the lowest route (six days), since the last activity cannot start until all the previous activities have been completed. [Pg.296]

Freundlich isotherm The empirical relationship between the amount of a substance adsorbed and the concentration of the solute [Pg.182]

Recall that the recovery factor (RF) defines the relationship between the hydrocarbons initially in place (HCIIP) and the ultimate recovery for the field. [Pg.206]

The following diagram represents underground volumes of fluid produced. The relationship between the underground volumes (measured in reservoir barrels) and the volumes at surface conditions is discussed in Section 5.2. The relationships were denoted by [Pg.184]

The step response function h(x) is also determined by the integral equation (1). The relationship between step response h(x) and the impulse response g(x) is represented by [Pg.366]

It is common practice within oil companies to use expectation curves to express ranges of uncertainty. The relationship between probability density functions and expectation curves is a simple one. [Pg.159]

Constant steps are not necessary, but they simplify the matrix g of eq.(6). Eq.(5) and eq.(6) respectively show the relationship between input and output signal for discrete signal processing. It is given by a linear equation system, which can easily be solved. [Pg.367]

In a reservoir at initial conditions, an equilibrium exists between buoyancy forces and capillary forces. These forces determine the initial distribution of fluids, and hence the volumes of fluid in place. An understanding of the relationship between these forces is useful in calculating volumetries, and in explaining the difference between free water level (FWL) and oil-water contact (OWC) introduced in the last section. [Pg.120]

Starting at condition A with the ethane in the liquid phase, and assuming isothermal depletion, then as the pressure is reduced so the specific volume increases as the molecules move further apart. The relationship between pressure and volume is governed by the compressibility of the liquid ethane. [Pg.98]

The SPATE technique is based on measurement of the thermoelastic effect. Within the elastic range, a body subjected to tensile or compressive stresses experiences a reversible conversion between mechanical and thermal energy. Provided adiabatic conditions are maintained, the relationship between the reversible temperature change and the corresponding change in the sum of the principal stresses is linear and indipendent of the load frequency. [Pg.409]

For a three-component mixture, there are only two alternative sequences. The complexity increases dramatically as the number of components increases. Figure 5.2 shows the alternative sequences for a five-component mixture. Table 5.1 shows the relationship between the number of products and the number of possible sequences for simple columns. [Pg.130]

Nearly all reservoirs are water bearing prior to hydrocarbon charge. As hydrocarbons migrate into a trap they displace the water from the reservoir, but not completely. Water remains trapped in small pore throats and pore spaces. In 1942 Arch/ e developed an equation describing the relationship between the electrical conductivity of reservoir rock and the properties of its pore system and pore fluids. [Pg.147]

The analysis of the curves obtained in the thin-skin regime ean lead to a simple determination of slot length depending on the dimension of the probe chosen for the inspection. If the size of the probe (outer diameter) is smaller than the defect length we can notice 5 zones relative to the relationship between the position of the probe, the interaction of the induced eddy current and the slot, and the impedance change for the probe. [Pg.146]

Equation (1) is of little practical use unless the fuga-cities can be related to the experimentally accessible quantities X, y, T, and P, where x stands for the composition (expressed in mole fraction) of the liquid phase, y for the composition (also expressed in mole fraction) of the vapor phase, T for the absolute temperature, and P for the total pressure, assumed to be the same for both phases. The desired relationship between fugacities and experimentally accessible quantities is facilitated by two auxiliary functions which are given the symbols (f [Pg.14]

In preparation for a field wide quick look correlation, all well logs need to be corrected for borehole inclination. This is done routinely with software which uses the measured depth below the derrick floor ( alonghole depth below derrick floor AHBDFor measured depth , MD) and the acquired directional surveys to calculate the true vertical depth subsea (TVSS). This is the vertical distance of a point below a common reference level, for instance chart datum (CD) or mean sea level (MSL). Figure 5.41 shows the relationship between the different depth measurements. [Pg.137]

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