Results 51 to 60 of about 76,676 (363)

Estimation of the Fracturing Parameters and Reservoir Permeability Using Diagnostic Fracturing Injection Test

open access: yesIraqi Geological Journal, 2023
The term "tight reservoir" is commonly used to refer to reservoirs with low permeability. Tight oil reservoirs have caused worry owing to its considerable influence upon oil output throughout the petroleum sector.
Hiba Hasan, Sameera Hamd-Allah
doaj   +1 more source

Exploration methods for granitic natural stones - Geological and topographical aspects from case studies in Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2014
Regional and local geological constraints for location of natural stone deposits in glaciated terrains of southern and central Finland have been studied and applied to practical exploration for natural stone.
O. Selonen   +3 more
doaj   +1 more source

Productivity Prediction of Fractured-Vuggy Reservoirs under Time-Varied Flow Rates and Bottom Hole Flow Pressures

open access: yesGeofluids, 2022
Fracture-vuggy oil reservoirs contain micrometer-sized dissolved secondary pores, fractures, and meter-sized karst caves. Generally, the researches on the flow mechanism of fractured-vuggy reservoirs are based on the assumption of karst cave-fracture ...
Shan Tao   +4 more
doaj   +1 more source

A Geomechanical Study of the Mississippian Boone Formation [PDF]

open access: yes, 2013
The Boone Formation in northwest Arkansas is a chert-limestone sequence analogous to the subsurface Mississippi Lime reservoir in parts of Oklahoma and Kansas. It has low permeability and produces via horizontal drilling and hydraulic fracturing.
Buckland, Karen Nicole Mason
core   +2 more sources

Parsimonious numerical modelling of deep geothermal reservoirs [PDF]

open access: yes, 2015
Numerical modelling has been undertaken to help improve understanding of a deep geothermal system being considered for development in the vicinity of Eastgate (Weardale, County Durham, UK).
Fairs, Tim H.   +2 more
core   +1 more source

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

open access: yesAdvanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell   +4 more
wiley   +1 more source

Introducing standardized field methods for fracture-focused surface process research [PDF]

open access: yesEarth Surface Dynamics
Rock fractures are a key contributor to a broad array of Earth surface processes due to their direct control on rock strength as well as rock porosity and permeability.
M. C. Eppes   +12 more
doaj   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Calibration of Complex Discrete Fracture Network Using Microseismic Events and Fracture Propagation Modelling with Seamless Reservoir Production Simulation

open access: yesLithosphere, 2022
During the unconventional reservoir development, a proper modelling of the underground fracture networks and their effects on production is crucial for reservoir development potential and realistic economic analysis.
Yanchao Li   +5 more
doaj   +1 more source

Characterizing groundwater flow and heat transport in fractured rock using Fiber-Optic Distributed Temperature Sensing [PDF]

open access: yes, 2013
International audienceWe show how fully distributed space-time measurements with Fiber-Optic Distributed Temperature Sensing (FO-DTS) can be used to investigate groundwater flow and heat transport in fractured media.
Anderson   +30 more
core   +3 more sources

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