OALib Journal
  OALib Journal is an all-in-one open access journal (ISSN Print: 2333-9705, ISSN Online: 2333-9721). It accepts a manuscript for the peer-review processing, typesetting, publication and then allocated to one of the 322 subject areas. The article processing charge for publishing in OALib journal is Only $99. For more details, please contact service@oalib.com. Submit now
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Mar 13, 2023Open    Access

Landslide Susceptibility Assessment Based on Slope Unit and BP Neural Network

Miao Wang, Caiyan Wu, Xiao Liu, Qihao Wei
The result of landslide susceptibility assessment (LSA) can be used for landslide hazard management and emergency rescue. Lixian County in Sichuan Province is selected to be the study area for its frequent landslides. Based on the correlation analysis and geological environment interpretation, a total of 9 controlling factors of landslide were selected (i.e., lithology, elevation, slope curvature, slope angle, aspect, normalized difference vegetation index (NDVI), slope length, distance to river...
Open Access Library J.   Vol.10, 2023

Feb 27, 2023Open    Access

Sedimentary Reservoir Characteristics and Reservoir Classification Evaluation of Benxi Formation in Well Da-Ning Area, Ordos Basin

Yuqing Gu
Several sets of sandstones are developed in the Benxi Formation of Carboniferous in the Upper Paleozoic in the Ordos Basin, which are transitional facies of Marine and continental facies and have significant unconventional natural gas potential. In order to reveal the sedimentary reservoir characteristics of the Upper Carboniferous Benxi Formation in the southeastern Ordos Basin, this paper makes comprehensive use of drilling and logging data, combined with various experiments, and conducts an i...
Open Access Library J.   Vol.10, 2023

Jan 31, 2023Open    Access

Study on Evaluation of Chang-6 Tight Sandstone Reservoir Characteristics in Zhangjiatan, Ordos Basin

Mengmeng Lu
The resource potential of the Triassic Yanchang Formation’s Chang 6 reservoir in the southeastern part of the Ordos Basin’s slope is large, whereas it is poor levels of exploration, and reservoir evaluation is not perfect enough, so that, limiting future exploration in this area. It is underpinned by core of detailed observations and descriptions of the Chang 6 reservoir system, typical samples of various sample, oil-bearing properties, and sedimentary structures were collected, and further anal...
Open Access Library J.   Vol.10, 2023

Jan 04, 2023Open    Access

Application of Fluid Inclusions in Reservoir Formation: A Case Study of Qilicun Oilfield in Ordos Basin

Jingwen Zhu, Shanshan Chen, Yuxuan Zhang
The formation time of the Chang 6 reservoir was determined semi-quantitatively by petrographic observation, fluorescence spectral analysis, homogeneous temperature test and salinity calculation of fluid inclusions in the Chang 6 reservoir of the Qilicun oilfield, as well as sonic time difference method to recover the stripping thickness of the strata at the end of the Early Cretaceous, based on the study method of burial-thermal evolution history map with homogeneous temperature cast points of i...
Open Access Library J.   Vol.9, 2022

Jan 04, 2023Open    Access

Characteristics of Jurassic/Triassic Unconformity Structure in Ordos Basin and Its Effect on Oil and Gas

Yile Duan, Yuanhao Li, Tingyu Ma, Shouliang Wang
Longdong area is located on the southwest edge of the Ordos basin. As the Indosinian movement at the end of the Triassic led to the uplift and erosion of the Ordos basin, the pre Jurassic ancient landform in Longdong area was formed. The erosion weathering time, erosion depth, late filling, etc. of different geomorphic units are obviously different, forming the unconformity structure of different geomorphic units. After studying the logging curve, element geochemistry, physical property and othe...
Open Access Library J.   Vol.9, 2022

Aug 30, 2022Open    Access

Groundwater Residence Time Modelling in the Aquifers of the Ampasindava Peninsula, Northwestern of Madagascar

Lahimamy Paul Fareze, Joel Rajaobelison, Voahirana Ramaroson, Falintsoa Fanantenana Asombola Razafitsalama, Christian Ulrich Rakotomalala
This study concerns the use of isotope techniques to assess groundwater resource management in mining area. The objective of the study is first to estimate the groundwater residence time in the peninsula of Ampasindava and secondly to determine the relationship between wastewater from mining activity and groundwater resource in the study area by using environmental isotopes. It will contribute to clarifying the impact of the mining activity waste water on the groundwater in the study area. The s...
Open Access Library J.   Vol.9, 2022

Apr 14, 2022Open    Access

Impacts of Soil Salinity on Irrigation Potential: In the Case of Middle Awash, Ethiopian Review

Fikadu Robi Borena, Jemal Mohammed Hassen
Salt-affected soils are widespread in arid and semi-arid areas irrigated around the world, where low-quality irrigation water is common. Every minute, the world loses at least ten hectares (ha) of arable land, three hectares of which are due to salinization issues, particularly in the irrigated desert and semi-arid regions. The cost of soil salinization for agriculture is now estimated at more than $12 billion per year and is expected to increase as soils are increasingly impacted by irrigation ...
Open Access Library J.   Vol.9, 2022

Jan 14, 2022Open    Access

Trace Element Evaluation of Groundwater in Douala, Cameroon

Ngwese Sharon Ntube, Aduck Jovens Nyangang, Ma-Effeti Ngale Agbor, Akoachere Richard Ayuk II
Douala, situated between latitude 4.00 - 4.15 and longitude 9.65 - 9.95, is the economic capital of Cameroon in the Littoral Region and it hosts more than 80% of the industries in the Country. Increased urbanization and agricultural activities have a potential for trace metal contamination as such, the trace metal evaluation of groundwater in Douala begs our attention. This study investigated the trace metal content of groundwater sources; determined estimates of the health hazard and pollution ...
Open Access Library J.   Vol.9, 2022

Dec 30, 2021Open    Access

Hydrogeochemical and Biological Evaluation of Packaged Groundwater Sold in Douala City, Cameroon

Ma-Effeti Ngale Agbor, Ngwese Sharon Ntube, Aduck Jovens Nyangang, Akoachere Richard Ayuk II
Douala is the economic capital of Cameroon situated between latitude 4.00 - 4.15 and longitude 9.65 - 9.95 with an estimated population of over two million and 65,000 households connected to the water supply network. The Douala/Kribi-Campo Basin is a divergent, marginal rift basin and one of the two Atlantic coastal basins of Cameroon, the other being the Rio del Rey Basin. This study evaluates the quality of packaged (Bottled/Sachet/Refilled) groundwater in Douala using hydrogeochemical tools: ...
Open Access Library J.   Vol.8, 2021

Nov 23, 2021Open    Access

A Review on the Deposit Geology and Mineralization Mechanism of Tsumeb Polymetallic Deposit, Namibia

Regean Pumulo Pitiya, Lubang Jacob Peter
The Tsumeb polymetallic deposit of Otavi Mountain Land (OML), Namibia, is a prominent deposit of remarkable and complex mineral species with the accreditation of about 337 valid minerals. A total of 72 species of these minerals are of Tsumeb as the type of locality. The deposit was first prospected in 1893 by the South West Africa Company and it was mined from the year 1897 to 1996, yielding a total of about 30 Mt of ore with the grade of 10% Pb, 4.3% Cu, and 3.5% Zn along with ore minerals of A...
Open Access Library J.   Vol.8, 2021


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