Summary. The behavior of fluids in nanometer-scale pores can have a strong functional dependence on the pore size. In mature organic-shale reservoirs, the nuclear-magnetic-resonance (NMR) signal from methane decays by surface relaxation. The methane NMR spectrum provides an uncalibrated pore-size distribution for the pores that …
The Geochemistry of Archean shales derived from a mafic volcanic sequence, Belingwe greenstone belt, Zimbabwe: Provenance, source area unroofing and submarine versus …
Explore the top 5 World Heritage Sites in Zimbabwe, including the ancient ruins of Great Zimbabwe, Matobo Hills' rock art, and the breath
At the pressure−temperature conditions of shale reservoirs, CO2 is a supercritical fluid. Supercritical CO2 (scCO2) is known to interact both physically and chemically with many of the constituents of shale rocks. scCO2 can adsorb on clay minerals and organic matter.
Laboratory testing of shale gas reservoir rocks reveal varying amounts of time-dependent viscous deformation in response to applied differential stress. The time-dependent deformation is an inherent property of the dry rock as it occurs in the absence of pore fluid.
In this study, using Mancos shale samples, the rock mineralogy, total organic carbon and cation exchange capacity of the Mancos shale samples were determined in order to characterize the shale. Adsorption tests to study the interaction of the shale and aqueous fluid mixture were also carried out using surface tension measurements.
(a) Regional geological setting of the Zimbabwe craton. (b) Geological map of the Belingwe greenstone belt and simplified stratigraphic column of the Ngezi Group. (c) Geological map of the central ...
10 Balanced Rocks to Visit Around the World. Balanced Rock in Arches National Park, Utah, USA. Balancing Rock in Nova Scotia, Canada. Golden Rock in Kyaiktiyo Hill, Myanmar. Idol Rock in Brimham, UK. Devils Marbles in Australia. Peyro-Clabado in Sidobre, France. Mother and Child Rock in Zimbabwe. Balanced Rock in …
Sedimentary rocks are formed from the accumulation and consolidation of sediments, which can be clastic, chemical, or organic in origin. Learn about the classification, formation, and features of sedimentary rocks in this chapter of Geosciences LibreTexts, a free online textbook for earth science students.
The Geochemistry of Archean shales derived from a mafic volcanic sequence, Belingwe greenstone belt, Zimbabwe: Provenance, source area unroofing and submarine versus subaerial weathering
In the vibrant heart of Harare, Zimbabwe, a geological wonder has intrigued generations—the Chiremba Balancing Rocks. These captivating formations, scattered …
Because of ultra-low permeability of shale rocks, capillary pressure is very high. Wettability not only determines the value of capillary pressure, but, more importantly, it also determines whether the capillary pressure is a driving force or a resistance to fluid flow. This paper is to address the wettability characteristics of shale rocks. First, the common …
The spatial distribution of rock art in Zimbabwe helps to show that geology was the influential factor in choosing whether to paint or to engrave. In terms of subject matter, …
Fossils from the period have been preserved in rocks at more than 50 known sites worldwide, the most famous of which is Canada's Burgess Shale, discovered in 1909.
Igneous, sedimentary, and metamorphic rocks are the three types of rocks. Rocks fall into one of these categories depending on how they form and are then further subcategorized according to formation, composition, and other properties.
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Abstract and Figures. This study was conducted to characterize the aquifer and evaluate the ground water potential in the formation of sedimentary rocks. Electrical resistivity and drilling ...
Simulations are performed at the field scale, on a simplified geologically-informed model of the Heletz pilot test site, Israel, in the framework of the EU-sponsored TRUST project. The potential reactivation and growth of pre-existing natural fractures is investigated. During cold injection, changes in the strain field around the well are tracked.
Matobo Hills, in southern Zimbabwe, are home to more than 300,000 rock paintings. Matobo Hills in southern Zimbabwe, where British politician Cecil Rhodes is buried on the cloud-tickling World's View escarpment, has more than 300,000 paintings with the oldest …
The Archean Zimbabwe craton is made of a number of distinct tectonostratigraphic terranes assembled by plate tectonic processes. The central Tokwe terrane consists of 3.5–2.95 Ga gneissic rocks and structurally complex inliers of possibly older greenstone belts. These are overlain unconformably by a 2.9–2.8 Ga assemblage …
The spatial distribution of rock art in Zimbabwe helps to show that geology was the influential factor in choosing whether to paint or to engrave. In terms of subject matter, the rock art of Zimbabwe is mostly dominated by what is known as hunter-gatherer art, with a few sites having what has been termed "farmer art."
Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals, especially quartz and calcite. Characteristic properties of shale is breaks along thin laminae or parallel layering or bedding called fissility. It is most abundant sedimentary rock. The composition (silt and clay) of shale in …
List of 494 Zimbabwe mountains showing elevation, prominence, and popularity.
The varied mechanisms of shale slope stability are outlined and their importance highlighted by reference to international shale slope failures. Stability analysis and modelling of anisotropic rock slope masses are briefly discussed and the potential role of brittle rock fracture and damage highlighted.
The name refers to the haystack shaped hills in the valley which were thought by some to be Indian burial mounds. These hills, however, are erosional remnants of the once much more extensive Pierre Shale …
The study aims to assess groundwater resources in Sinai's central area using remote sensing, geoelectric, and well-logging data, utilising techniques for modelling hydrogeological frameworks and ...
Ben Lomond Mountain. Rising prominently amidst the scenic landscape, Ben Lomond Mountain offers a wealth of geological wonders to its visitors. It's known for its unique rock formations, including sandstone and shale layers that date back millions of years, providing a rich tapestry of rocks, minerals, and fossils.
Are you new or visiting the Tennessee area? Are you a rockhound? Here are some must see rockhounding sites in Tennessee.
In the heart of Zimbabwe's bustling capital, Harare, lies a geological marvel that has intrigued generations: the Chiremba Balancing Rocks.
Summary. Phase behavior is important in the calculation of hydrocarbons in place and in the flow of phases through the rocks. Pore sizes can be on the order of nanometers for shale and tight-rock formations. Such small pores can affect the phase behavior of in-situ oil and gas because of increased capillary pressure. Not accounting …
The Balancing Rocks are located in Matapos National Park. These balancing rocks make for an amazing wonder of nature from the country of Zimbabwe.
The experimental determination of petrophysical properties for shale rocks is dependent on measurement techniques and often produces inconsistent results. Alternatively, high-resolution three-dimensional imaging techniques coupled with image analysis and direct numerical simulations have been employed to estimate these …
