Results 31 to 40 of about 8,189 (339)

Typical misinterpretations and scientific concepts in well-logging geologic studies

open access: yesNatural Gas Industry B, 2023
The method and theoretical system of well logging geology have been widely used in the fields of basic geology, petroleum geology and engineering geology, but the different response sensitivity of different well logging series to geological information ...
Jin Lai   +7 more
doaj  

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

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

Fracture Characteristics of Mélange Complex Basement in Bantimala Area, South Sulawesi, Indonesia

open access: yesIndonesian Journal on Geoscience, 2017
DOI: 10.17014/ijog.4.3.121-141A detailed geological mapping and fracture characterization had been performed in Bantimala area, South Sulawesi, Indonesia.
Benyamin Sapiie   +3 more
doaj   +1 more source

A hybrid-mixed finite element method for single-phase Darcy flow in fractured porous media [PDF]

open access: yes, 2021
We present a hybrid-mixed finite element method for a novel hybrid-dimensional model of single-phase Darcy flow in a fractured porous media. In this model, the fracture is treated as an $(d-1)$-dimensional interface within the $d$-dimensional fractured porous domain, for $d=2, 3$.
arxiv   +1 more source

Review of discrete fracture network characterization for geothermal energy extraction

open access: yesFrontiers in Earth Science, 2023
Geothermal reservoirs are highly anisotropic and heterogeneous, and thus require a variety of structural geology, geomechanical, remote sensing, geophysical and hydraulic techniques to inform Discrete Fracture Network flow models.
Giacomo Medici   +2 more
doaj   +1 more source

Transport model for shale gas well leakage through the surrounding fractured zones of a longwall mine

open access: yesInternational Journal of Mining Science and Technology, 2020
The environmental risks associated with casing deformation in unconventional (shale) gas wells positioned in abutment pillars of longwall mines is a concern to many in the mining and gas well industry.
Kayode M. Ajayi, Steven J. Schatzel
doaj  

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

Effect of the Initial Support of the Tunnel on the Characteristics of Rockburst: Case Study and Mechanism Analysis

open access: yesAdvances in Civil Engineering, 2022
Rockburst is still a stubborn disease in the field of engineering geology. The present research pays more attention to the influence of geological conditions on rockburst and less to the influence of type and stiffness of engineering support on rockburst.
Chunchi Ma   +4 more
doaj   +1 more source

Structural analysis of the eruptive fissures at Mount Etna (Italy)

open access: yesAnnals of Geophysics, 2011
Mount Etna produces frequent eruptions from its summit craters and from fissures on its flanks. The flank fissures trend approximately radially to the summit, and are mainly concentrated in three rift zones that are located on the NE, S and W flanks ...
Francesco Mazzarini   +5 more
doaj   +1 more source

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