Global warming and climate change challenge us to implement sustainable energy systems. Urcuqui, located in the Imbabura province in the North of Ecuador, is one of the cities with the most promising renewable energy resources. Therefore, analyzing the energy potential of Urcuqui at the micro and macro scales will provide valuable information for the national efforts to pursue the Sustainable Development Goals and the 2030 Agenda. This work aims to identify strategic points with high viability to implement renewable energy systems by collecting information from local governments, such as Municipio de Urcuqui and Prefectura de Imbabura, and implementing advanced methodologies like GIS and mul... More >

The Paleogene-Neogene lacustrine source rocks in the Mangai area of the Qaidam Basin are significant exploration targets. A comprehensive evaluation of four major intervals (E$_3^2$, N$_1$, N$_2^1$, N$_2^2$) was conducted through systematic organic geochemistry, maceral identification, thermal maturity analysis, and burial-thermal history modeling. Results show TOC contents of 0.203~1.28% (avg. 0.74%), chloroform bitumen "A" of 0.0164~0.2495% (avg. 0.132%), and total hydrocarbon contents of 69.29~1637.48 $\mu$g/g (avg. 853.39 $\mu$g/g), indicating fair to good quality. Kerogen elemental analysis (H/C=0.97~1.21), maceral composition (sapropelinite+exinite=70~98%), and saturated hydrocarbon ch... More >

Shale gas, as a typical low-quality marginal hydrocarbon resource, faces persistently high drilling costs, which have become one of the main bottlenecks restricting its large-scale development. The Southern Sichuan region of China holds enormous shale gas reserves and is a strategically important area for achieving cost-effective large-scale development. However, as production capacity construction intensifies and the volume of investment and cost data increases, traditional data processing methods can no longer meet the timeliness and accuracy requirements for handling massive data. Accurate prediction of oil and gas drilling costs will help in making scientific decisions and evaluations. I... More >

The ultra-deep tight sandstone gas reservoirs in the Tarim Basin, exemplified by the Keshen A gas reservoir, face escalating challenges of water invasion and pressure maintenance after years of production. Interlayers within these reservoirs serve as critical geological barriers, yet their spatial distribution remains poorly resolved due to limitations in conventional identification methods. This study integrates core, logging, 3D seismic, and production data within a sequence stratigraphic and reservoir geology framework to establish a ``core-logging-seismic'' collaborative identification system for argillaceous interlayers. Two main interlayer types—argillaceous and physical—are identi... More >

The Africa-Atlantic Gas Pipeline (AAGP), also known as the Nigeria-Morocco Gas Pipeline, is a major transcontinental infrastructure project poised to connect West African gas reserves with North African networks and European markets, potentially reshaping regional energy dynamics, boosting economic development, and enhancing energy security. Its strategic importance has grown amid Europe’s urgent need to diversify away from Russian gas imports and Africa’s dual challenge of resource-based development and sustainable local energy access. Despite increasing interest, there is a lack of integrated, quantitative evaluation of competing gas transit strategies considering technical, economic,... More >

The deep shale gas ($\geq 3500$ m) in the Z205 well area is a critical exploration and development target in the Sichuan Basin. The shale gas reservoirs of the Upper Ordovician Wufeng Formation -- Lower Silurian Longmaxi Formation (Long 1$_1$ submember) in this area are characterized by deep burial and significant vertical and lateral heterogeneity. The Long 1$_1$ submember is subdivided into the Wufeng Formation, Long 1$_1^1$, Long 1$_1^2$, Long 1$_1^3$, and Long 1$_1^4$. This study conducts a detailed stratigraphic comparison based on integrated logging, core analysis, and analytical test data from the well area, clarifying the longitudinal and lateral distribution patterns of the reservoi... More >

The widespread adoption of Battery Energy Storage Systems (BESS) is crucial for integrating intermittent renewable sources like solar and wind into the power grid, thereby advancing the goals of green energy. Deploying BESS underground offers a sustainable solution to land constraints and safety concerns. However, the dynamic and complex thermal environment underground severely challenges the accurate State-of-Charge (SOC) estimation, which is vital for the safety, longevity, and operational efficiency of BESS. Data-driven SOC models often suffer from performance degradation due to data distribution shifts caused by temperature fluctuations, especially when operational data for specific unde... More >

Danxia landform, recognized for its steep cliffs and red coloration, has drawn significant scientific attention. While Chinese Danxia Landforms are UNESCO World Heritage Sites, their genesis and evolution, particularly in less-explored regions, remain under study. The southern Sichuan Basin, one of China's three largest Danxia outcrop areas, offers a unique case study due to its distinct geological setting and limited research. This study investigates the genesis of Danxia landforms in the southern Sichuan Basin using a multi-faceted approach. Field observations documented geomorphological characteristics and stratigraphy of the Danxia formations. Tectonic analysis, using regional structural... More >