Determining the connectivity of fluids in hydrocarbon reservoirs is a key challenge during appraisal stage. Such information critical for assessing economic viability and planning reservoir development. Although several tools exist to determine static fluid column organisation post-hydrocarbon emplacement, it extremely difficult extent between different phases. Conventional studies on Tormore f...

The report summarizes recent research and practice of using materials with high absorption ability to noble gases to measure their radioactive isotopes. Most of the studies employ bisphenol-A based polycarbonates, because of their remarkably high absorption ability to noble gases. This is the material of which commercial CDs/DVDs are made and they may serve as serendipitous, already available i...

Gamma-ray positron annihilation spectra of the noble gases are simulated using computational chemistry tools for the bound electron wavefunctions and plane-wave approximation for the low-energy positron. The present annihilation line shapes, i.e. the full width at half maximum, ε, of the γ -ray annihilation spectra for He and Ar (valence) agree well with available independent atomic calculation...

A theoretical derivation is given for the formula describing N -electron ionization of atom by a dc field and laser radiation in tunneling regime. Numerical examples are presented for noble gases atoms. PACS numbers: 32.80.Fb, 87.64.Lg.

High-resolution transmission electron microscopy, shows that carbon in the Allende carbonaceous chondrite meteorite is predominantly a poorly crystalline graphite. Such material is of interest as an important carrier of the isotopically anomalous noble gases found in carbonaceous chondrites.

Study of commercially produced volcanic CO2 gas associated with the Colorado Plateau, USA, has revealed substantial new information about the noble gas isotopic composition and elemental abundance pattern of the mantle. Combined with published data from mid-ocean ridge basalts, it is now clear that the convecting mantle has a maximum (20)Ne/(22)Ne isotopic composition, indistinguishable from th...

Introduction: Previous elemental ratios of light solar noble gases were determined from the SWC Experiments on Apollo [1] with collection time ranging from 77 minutes (July 1969) to 45 hours (April 1972). These exposures were too short to collect measurable amounts of less abundant heavy noble gases and contamination with fractionated solar wind-rich dust remained a problem. However, the 853 da...

Introduction: Itqiy is a unique coarse-grained, metal-rich enstatite meteorite that was recovered from Western Sahara in July 2000 [1,2]. The dominating mineral phase is a low Ca pyroxene that partly resembles EL chondritic enstatite. The other main constituent (about 25 vol%) is kamacite, which shows EH chondritic compositional characteristics. Additionally, a few tiny intergrowths of differen...

Geochemical monitoring of groundwater and soil gas emission pointed out precursor and/or coseismic anomalies of noble gases associated with earthquakes, but there was lack of plausible physico-chemical basis. A laboratory experiment of rock fracturing and noble gas emission was conducted, but there is no quantitative connection between the laboratory results and observation in field. We report ...