...%) and carbonates (3±6%). The rock quality is severely affected by the pore filling chlorite (~20%) in the formation. The MICP and NMR data shows bimodal distribution of pore throat size and T 2 distribution, indicating presence of two types of pore system. We utilized principal component analysis and K means...

... Reservoir Characterization rock fragment petrofacies Upstream Oil & Gas Siltstone reservoir quality porosity volcanic rock fragment cement compaction chlorite Feldspar burial history sediment fragment thin section structural geology microporosity rock property sandstone...

... and old, with the potential of extending the life of many assets currently in the post-plateau stage of production. information upstream oil & gas capture spectroscopy help resolve producibility log analysis porosity society of petroleum engineers permeability chlorite spe 96609...

... remediation oilfield chemistry hydrate remediation scale inhibition hcl scale remediation asphaltene inhibition hydrate inhibition acid system precipitate production chemistry upstream oil & gas formation stimulation chlorite drilling fluids and materials permeability drilling fluid...

... as two distinct crystal structures i.e., cubic and pyramidal. SEM examination showed that most cores exhibited severe alteration of illite and chlorite to yield a significant quantify of clay residue including fines. The residue, severely degraded potassium feldspar (microcline) and quartz fines created...

... determined also on these fractions. Abstract Chlorite bearing sandstones usually give low resistivity signals, and are thus erroneously identified as non pay zones, even if they exhibit good preserved porosities at depth. The purpose of the paper is to provide petrophysical and mineralogical laboratory...

.... The <5-millisecond components likely correspond with <5-μm sized pores typically trapped within the flakes of detrital illite. Features in the 5- to 20-millisecond range are also likely associated with the authigenic aggregates of kaolinite and chlorite that enclose 5- to 30-μm sized pores. T 2...

... Abstract The laminated, structural and grain-coating primary clays in the Lower Wilcox Sand, Lobo 6, tend to be potassium-bearing illite and some smectite, whereas diagentic clays, the cause of pore-throat plugging, are largely potassium-deficient kaolinite and chlorite. Presence...

.... In response, testing of rock permeability before and after exposure to fracturing fluids at pH levels in the 3 to 10 range was completed with normally water-sensitive formations. chlorite flow in porous media permeability coating upstream oil & gas fluid dynamics hydraulic fracturing...

..., and depth of focus far exceeding petrographic thin section capabilities. Several recent papers have described and discussed the importance of dispersed clays in sandstones. This paper defines "dispersed" clay as silicate clay minerals (e.g., kaolinite, illite, smectite, chlorite) developed within the rock...