This paper presents a study on pseudo-analytic techniques for modeling electromagnetic sensors used in geophysical well logging. Logging-while-drilling (LWD) tools are typically the exploration of hydrocarbons reservoirs and usually immersed complex formations (inhomogeneous, dissipative, anisotropic), resulting challenging problem conventional computational techniques. The environment is treat...

In conventional wireline and LWD/MWD formation testing, downhole predictions for rock fluid properties are based on simplified Darcy flow models, but only mathematical expediency. These require initially constant pressures that uniform throughout the reservoir. This limitation precludes common applications in overbalanced drilling, so supercharge or near-well invasion effects - associated with ...

During Leg 204, we cored and logged nine sites on the Oregon continental margin to determine the distribution and concentration of gas hydrates in an accretionary ridge and adjacent slope basin, investigate the mechanisms that transport methane and other gases into the gas hydrate stability zone (GHSZ), and obtain constraints on physical properties of gas hydrates in situ. A three-dimensional s...

AbstractIn this era of globalization, technology is increasingly being used in all areas life which has a major impact on social interactions among people. This marked by the existence changes communication carried out community both directly and cyberspace through digital platforms such as media applications. Over time, use not only means communication, but also carrying digital-based movement...