|
|
Go
Mar 27, 2024Open Access
Geological disasters occur frequently in China, and large-scale debris flow events have caused serious threats to people’s lives and property. Debris flow has the characteristics of high density and high velocity, especially the presence of large block in debris flow, which makes debris flow a great threat to engineering structures. In order to investigate the movement patterns of flat-shaped block in debris flow, a small-scale flume experiment with precise control was carried out. In the experi...
Apr 20, 2023Open Access
In order to serve the research of shale gas reservoir gas content and improve the prediction effect of shale gas reservoir gas content, this paper compares the factors influencing the gas content of shale gas reservoir and general prediction methods, and carries out the analysis of the factors influencing the gas content of shale gas and the response of sensitive logs in M1 well area, determines the main controlling factors of shale gas content, and establishes the prediction model of shale gas ...
Sep 14, 2022Open Access
This paper presents the results of research that evaluated the wind potential based on the growing trend of the search for green energy and prospects for the exploitation of this type of energy source in different municipalities in Rio de Janeiro state, Brazil. Average wind speed data were collected daily from 17 automatic stations provided by the Instituto Nacional de Meteorologia (INMET) for one year, from September 22, 2020 to September 22, 2021; it calculated, in sequence, the seasonal avera...
Jul 20, 2022Open Access
This paper aims to study the magnetic data collected in block 10B of the central basin in the Democratic Republic of Congo. This block includes lineaments mainly of internal geodynamic origin. This is work that further deepens knowledge of the lineaments of the central basin, although analyzes and maps for oil research purposes remain complex (location, detection techniques, and enhancements). The lineaments play great importance in mining prospecting than in oil prospecting. Because often the l...
Apr 30, 2021Open Access
We met terrain as the core of our existence therefore good understanding of the topography and other environmental settings improves safety. Mapping and visualization of terrain variable are the bedrock for understanding, protection, management and meaningful development of the physical environment. Integration of remote sensing (RS) and geographic information system (GIS) techniques has proved to be force for sustainable development. Therefore, the aim of this study is to demonstrate how RS and...
Aug 24, 2020Open Access
This paper presents the analysis of temporal variations of the geomagnetic field in the municipality of Macaé, Brazil. Current and historical magnetic field from the IGRF (International Geomagnetic Reference Field) and Gufm1 models were used to construct two-dimensional maps from 1590 to 2019. Analysis of the maps revealed that there was a large decrease in total magnetic field magnitude from around 48,000 nT in 1590 to 23,000 nT in 2019, i.e., a decrease of more than 50%. This decrease was inte...
Oct 10, 2019Open Access
In this study, a certain zone of Libra oil field of the pre-salt region was se-lected to be analyzed for didactic purposes in order to simulate AVO re-sponses. The region was modeled using seismic data, setting up a typical oil system with source rock (shale), reservoir rock (sandstone), and seal rock (salt). Thus, a set of parameters such as seismic wave velocity, density and Poisson’s ratio for the studied zone w ...
Jul 30, 2019Open Access
This work presents the geomagnetic characterization of the municipality of Macaé, Brazil. Data from IGRF12 (twelfth edition of International Geomag-netic Reference Field) were used. Through the data collected in a regular grid of 0.1 degrees of the components, north, east and vertical were generated maps of components, inclination, declination, horizontal component and geomagnetic total field. The results showed important relative ...
Apr 29, 2019Open Access
This work presents the analysis of magnetometric data of an aerial survey conducted in the Rio do Peixe Sedimentary Basin, which is a promising oil producing region in the state of Paraíba, Brazil. The collected aeromagne-tometric data allowed the preparation of maps regarding magnetic anomaly, horizontal and vertical derivatives, analytical signal and Euler Decon-volution that were compared w ...
Aug 23, 2018Open Access
Self-Organizing
Map (SOM) analysis is used to perform optical characteri- zation of both Aerosol Optical Depth (AOD) and
Angstrom Exponent (AE) retrieved from Moderate-resolution
Imaging Spectroradiometer (MODIS) in relation to Precipitation Rate (PR)
from Tropical Rainfall Measurement Mission (TRMM) over selected East African
sites from 2000 to 2014 and further diagnose climate change over the region if
any. SOM reveals a marked ...
Go
|
|
|
