Reservoir characteristics and influences by diagenesis sedimentary environment of the Qingshuihe clastic formation Shinan area, Junggar Basin, are studied in this paper SEM, casting thin sections, X-ray diffraction, combining geology logging well data, providing a theoretical guide for further exploration development. The results show that Formation region interest was developed braided river f...

Porosity and permeability define the reservoir quality of a sandstone. are controlled by primary sedimentary characteristics subsequent diagenetic modification. Grain size, sorting, detrital mineralogy, matrix content defined at point deposition. Bioturbation, infiltration, continued alteration reactive minerals soft sediment deformation can occur soon after deposition and, together with charac...

Introduction: Careful characterization of terrestrial concretions and Mars “blueberries” yields important criteria for distinguishing their diagenetic origin in comparison to other models for small, spherical forms. The Jurassic Navajo Sandstone in the Grand Staircase Escalante National Monument (GSENM), southern Utah, contains many hydrous ferric oxide mineralization geometries (HFO phases inc...

The Upper Triassic Chang-7 Member of the Ordos Basin contains typical tight sandstone reservoirs. Reservoir quality is affected by diagenesis, which a critical factor in oil exploration. In this study, sandstones were studied variety experimental methods, including thin sections, scanning electron microscopy (SEM), and X-ray diffraction (XRD), to determine reservoir characteristics diagenesis d...

-The chemical composition of mixed-layer serpentine/chlorite (Sp/Ch) in Tuscaloosa Formation sandstone was analyzed by energy dispersive X-ray spectroscopy (EDX) in the scanning electron miscroscope (SEM) and by X-ray diffraction (XRD). EDX results indicate little depth-controlled variation in composition, whereas XRD results suggest distinct decreases in octahedral Fe and tetrahedral A1. XRDde...

The optimization of reservoir sweet spots is the key to efficient exploration and development low-permeability tight sandstone gas reservoirs. However, offshore deep, has characteristics large burial depth, diagenesis heterogeneity prominent importance diagenetic facies, which make it difficult predict spots. This work comprehensively used logging data, core observation, conventional analysis, ...

Diagenesis in the Permo-Triassic New Red Sandstone, Isle of Arran is characterized by early cementation hematite, clay, and calcite minerals, followed burial compaction, quartz, feldspar, pyrite cementation. Cataclasis post-dated quartz feldspar reduced grain pore aperture size deformed samples. Samples with cataclastic bands typically have 18% porosity 8.81 mD permeability on average. Whereas,...

The 1285 m thick MIS core offers an invaluable opportunity to obtain a detailed record of volcanism in McMurdo Sound. Volcanic stratigraphy and preliminary petrologic data on volcanic rocks in the AND-1B core are reported here. Remarkable volcanic deposits include: a) a phonolitic pumice layer found at ≈85 mbsf which is not correlated to any known vent onshore; b) a black well sorted volcanic s...

Cogoini, M and Elmore, R. D., 2002, Thermal Treatment of Clays Resulting in MagneticMineral Formation in a Smectite An Analogy to low Burial Conditions, AGU FallMeeting.Miller, A., Elmore, R. D., and Engel, M.H., 2002, Paleomagnetic Dating of Burial Diagenesis inthe Deseret Limestone, Utah, GSA Meeting, Denver.Blumstein, R., Elmore, R. D., Engel, M.H., and Parnell. J., 2002,...