Results 71 to 80 of about 9,505,035 (271)

Characterising the heterogeneous nature of tufa mounds by integrating petrographic, petrophysical, acoustic and electromagnetic measurements

The Depositional Record
Determination of the physical properties of subsurface geological bodies is essential for georesource management and geotechnical applications. In the absence of direct measurements, this usually passes via geophysical methods such as seismic and ground ...
S. Schröder, J. P. Corella, X. M. Pellicer, P. Rook, A. Kara, X. Comas   +5 more
doaj   +1 more source

Anisotropy in the Petrophysical Properties of Deformation Bands

2nd EAGE International Conference on Fault and Top Seals - From Pore to Basin Scale 2009, 2009
Microscopic examination of deformation bands reveals that the internal microstructure of different types of deformation bands varies along the bands at micro-scale. The variation can result in variations in petrophysical properties such as porosity and permeability.
A. Torabi, H. Fossen
openaire   +2 more sources

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

Near Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball, Karl E. Butler, Jonathan E. Chambers, Paul B. Wilkinson, Andrew Binley   +4 more
wiley   +1 more source

A comprehensive analysis on the relationships between elastic wave velocities and petrophysical properties of sedimentary rocks based on laboratory measurements

Journal of Petroleum Exploration and Production Technology, 2019
This paper is an attempt to find the interdependence existing between petrophysical properties and ultrasonic wave velocities. Porosity and permeability, apart from other properties, are the two fundamental physical properties of rock responsible for ...
S. Garia, A. K. Pal, K. Ravi, A. Nair
semanticscholar   +1 more source

Imaging Point Source Groundwater Discharges in a Confined Coastal Aquifer Using Electrical Resistivity

Groundwater, EarlyView.
Marine electrical resistivity tomography (ERT) is applied to characterize point‐source submarine groundwater discharge (PSGD) along NW Yucatán. ERT observations and forward modeling constrain conduit detectability under varying hydrogeological conditions.
Mariana Gómez‐Nicolás, Armando Huitzilt‐Rodriguez, Enrique Iñiguez, Roger Pacheco‐Castro, Marco Pérez‐Flores, Paulo Salles, Fiona Whitaker   +6 more
wiley   +1 more source

Tight Chalks - How Does Microtexture Affect Petrophysical and Geomechanical Properties?

, 2016
High porosity chalks have been extensively studied over the past decades. Only recently, there has been an increasing interest in the understanding of low permeability chalks, forming potential unconventional reservoirs or intra-reservoir seals. In order
F. Descamps, Swennen, Rudy, B. Caline, R. Swennen, Vandycke, Sara, Caline, Bruno, O. Faÿ-Gomord, Descamps, Fanny, S. Vandycke, Fay Gomord, Ophélie   +9 more
core   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor, Sanelisiwe Mhlambi, Nimuno Achu Teumahji, Wasiu Adedayo Sonibare, Jan van Bever Donker   +4 more
wiley   +1 more source

Petrophysical evaluation of well log data and rock physics modeling for characterization of Eocene reservoir in Chandmari oil field of Assam-Arakan basin, India

Journal of Petroleum Exploration and Production Technology, 2017
Petrophysical evaluation of well log data has always been crucial for identification and assessment of hydrocarbon bearing zones. In present paper, petrophysical evaluation of well log data from cluster of six wells in the study area is carried out in ...
Mithilesh Kumar, R. Dasgupta, Dip Kumar Singha, N. P. Singh   +3 more
doaj   +1 more source

Indirect Methods for Validating Shallow Geothermal Potential Using Advanced Laboratory Measurements from a Regional to Local Scale—A Case Study from Poland

Energies, 2020
This paper presents a broad overview of laboratory methods for measuring thermal properties and petrophysical parameters of carbonate rocks, and analytical methods for interpreting the obtained data.
Marek Hajto, Anna Przelaskowska, Grzegorz Machowski, Katarzyna Drabik, Gabriel Ząbek   +4 more
doaj   +1 more source

Influence of diagenetic features on petrophysical properties of fine-grained rocks of Oligocene strata in the Lower Indus Basin, Pakistan

Open Geosciences, 2021
Nari Formation is considered as one of the most important oil and gas exploration targets. These fine-grained tight sandstone reservoirs face enormous challenges due to their extremely low matrix porosity and permeability.
Shar Abdul Majeed, Mahesar Aftab Ahmed, Abbasi Ghazanfer Raza, Narejo Asad Ali, Hakro Asghar Ali Alias Daahar   +4 more
doaj   +1 more source