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What is VMS? Assemblages of mostly sulfide minerals that develop on the seafloor at locations of concentrated hydrothermal discharge, relates to a kind of ore deposit that’s mined from existing oceanic crust formed underwater are Volcanogenic Massive Sulfides (VMS) Deposit. ...
Geology 101 is the study of the Earth and its materials, structures, processes, and history. It is a broad field that encompasses many different disciplines, including mineralogy, petrology, paleontology, and geophysics. Geologists study the Earth’s physical features, including its rocks, ...
Andesite: A Comprehensive Guide Andesite, derived from the Andes Mountains in South America, is an igneous rock that holds a significant place in the geological world. Its composition, formation, and various uses make it a fascinating subject for study. In ...
When we think about tunneling, we often picture massive machines and skilled laborers hard at work underground. While these elements are undoubtedly essential, there’s an unsung hero behind every successful tunneling project: the geologist. In this article, we’ll explore the ...
In geology, joints are fractures or cracks in rocks along which there has been no significant movement parallel to the fracture surface. These fractures are typically a result of stress within the Earth’s crust and occur due to various geological ...
Porosity Definition Porosity refers to the amount of empty space or voids within a material or substance. It is often expressed as a percentage of the total volume of the material, with the remaining percentage being occupied by the solid ...
Mississippi Valley-Type (MVT) Deposits: Unveiling the Secrets of Shallow Marine Mineralization Introduction: Mississippi Valley-Type (MVT) deposits stand as unique geological formations, characterized by the accumulation of lead and zinc minerals in shallow marine settings. Named after the prolific occurrences in ...
Metamorphic rocks are classified based on their texture, mineralogy, and composition. The facies classification of metamorphic rocks is based on the conditions of temperature and pressure under which the rock formed. The following are the facies classification of metamorphic rocks: ...
Black metamorphic rock is a fascinating type of rock that has undergone intent transformation due to the presence of heat and pressure. This unique rock type is composed of minerals that have been subjected to high temperatures and pressures, leading ...
Minerals are homogeneous, naturally occurring, inorganic solids that have a definite crystalline structure and chemical composition. In 1995, the World Minerals Organization put another definition saying that “a mineral is an element or a chemical compound that is naturally crystalline ...
What is geology definition? Geology is the scientific study of the Earth, its rocks, minerals, and the processes that shape it. It is a branch of Earth science that focuses on understanding the Earth’s history, structure, and the processes that ...
Geologists use a wide range of tools and techniques to study the Earth’s physical properties, composition, and structure. Some of the most common tools used by geologists include: Geologists use a variety of specialized tools and equipment to study and ...
Logging While Drilling: • Logging while drilling (LWD) is an oilfield service that provides a tool within the drill string that transmits real-time formation information. The LWD tools are located near the end of the drillstring. The measurements recorded provide drilling engineers with critical welRead more
Logging While Drilling:
• Logging while drilling (LWD) is an oilfield service that provides a tool within the drill string that transmits real-time formation information. The LWD tools are located near the end of the drillstring. The measurements recorded provide drilling engineers with critical well information so they may make time sensitive decisions about future well operations.
• LWD is the most effective tool for measuring physical properties, where standard wireline systems previously acquired either no data or poor-quality data. LWD acquires a continuous log of physical properties from directly above the drill bit, where hole conditions are optimal for logging.
• LWD measurement ensures that some measurement of the subsurface is captured in the event that wireline operations are not possible. Timely LWD data can also be
used to guide well placement so that the wellbore remains within the zone of interest which is called as Geosteering.
• LWD tools consists of Gamma Ray Log, Resistivity log, Neutron porosity and density porosity logs which tells us whether the zone is shaly or non shaly, whether the
See lesszone consists of hydrocarbon or water and tells how porous the zone is.