... dimension and lacunarity was measured throughout a single thin section as well as whole samples. A statistical analysis was carried out between fractal parameters and porosity. Various indicators such as mean, median or standard deviation were calculated as measures of central tendency. They allowed...

... in developing quality data and then applying these concepts to IGSCC crack initiation data. Since the distribution of time to crack initiation tends to be highly skewed, these time to failure data are not well represented by measures of central tendency such as the mean time to failure. Data from creviced...

... the statistics is an important tool of research in this area. In a statistical study the random variables can be described approximately in terms of parameters, as the measures of central tendency and measures of dispersion (mean and standard deviation respectively). Also we can use the distribution...

... of rules to conform to the meaning and intent of the definitions. Instead, classifying first and reporting a measure of central tendency solves the problem consistently and clearly. Probabilistic methods are most suitable to aid the user of the reserve calculation in understanding the uncertainty...

... is statistical characterization of discontinuity properties such as orientation (dip and dip direction), lengths, spacing and strength for pertinent sets within the rock mass. Each of these parameters is best described by a distribution of values having a central tendency and some variation around that central...

... reached a quasi-steady state during testing by recording measurements daily until no additional systemic change was noted; however, variations were still present and under some cases the potentials were found to oscillate about a central point. Concentration dominated polarization effects were noted...

... to measure the performance metrics. The application spectrum was extended beyond the fluid loss control in high-permeability rock to aid in screening out multiple fractures and natural fractures, reducing poroelastic tendency of tight, tectonically influenced formations. An advanced numerical modeling...

...; on the contrary, there was a tendency toward decreasing of the settlement. In Fig. 1 the results of the forecast by the numerical analysis are also shown, and rather good agreement between the measured and calculated settlement was found in both total values and time history. The largest values of the total...

... in the direction to be coincident with the maximum principal stress, in order to minimize the stress concentration around the cavern. RÉSUMÉ: La measure de la contrainte initiale de la massif rocheux pour conception de configuration et orientation d'une cavite d'une centrale electrique souterraine situee à 550...

.... The technological unit employed is the mpy (roil per year) or the mm/y in the metric system. Laboratory measurements of corrosion rates rarely involve either roils or mm, It is therefore essential to convert the raw measurement units to mm/y. Unfortunately, there is an increasing tendency to publish unconverted...

... is a major factor that influence decisions among other related factors such as cost, delivery, etc. It is common to use central tendency parameters such as average run life, and mean time between failures, to quantify or estimate ESP reliability, or to compare between different ESP performances, but those...

... ABSTRACT: A number of techniques including weight loss coupons and corrosion probes have been used to study mild steel corrosion in system water typically used in domestic central heating systems. The corrosion in domestic central heating systems can be controlled by correct system...

..., shaken and placed into a water bath at 60°C. The amount of water visible over a 60 minute period was measured and recorded. Tests were carried out using aged samples of crude oil onshore. 14 The foaming tendency testing was carried out by sparging 100 ml of synthetic brine in a 1000 ml measuring cylinder...

... Preliminary water quality measurements were made at the field and the scaling tendencies of the water in steam generation investigated. A pilot ion exchange plant was then developed to prevent scale deposition in a test steam generator. Successful prevent scale deposition in a test steam generator. Successful...

... of up to 15.2 MPa In compression and 12.6 MPa In tension. It was found that within the column there Is a tendency for a concentric zoning of the mean principal stresses with compressive domains In both the central and the outer parts of the sample and with a tensile domain In the Intermediate part...

... conduction during desaturation processes. Resistivity index effect has been observed after wettability measurement showing oil-wet tendency. From the results obtained, a good relation between resistivity and type of pores (macro and micro pore system) was observed. When oil begins to penetrate micro-pore...

... interfacial tension (IFT) measurements, polymer viscosity measurements, wetting tendency measurements, and sandpack coreflood tests. The experimental results showed that the equilibrium interfacial tension between reservoir oil and formation brine could be lowered to an ultralow level (0.05 mN/m) by adding...