An enhanced geothermal system (EGS) is a crucial means of extracting thermal energy from hot dry rock reservoirs, and the pattern of well plays a key role in influencing heat extraction efficiency. Currently, there is limited research on pattern of well considering fractured reservoir explo...
Thermal energy storage and CO2 sequestration in depleted oil and gas reservoirs can not only solve the problem of seasonal solar thermal energy storage but also increase the share of renewable energy space heating and enhance the economy of CO2 geological sequestration.
With high reservoir temperature, good lithology and high water content, the Qingshankou Formation is the best geothermal reservoir of Daqingzijing area, the saddle of the Changling Depression. Therefore, elucidating the genetic model of geothermal water is of great significance for the sust...
Yishu fault zone geothermal field and central Shandong uplift geothermal field are typical geothermal fields in south central Shandong Province. In order to investigated the distribution characteristics and mechanisms of fluorine enrichment in the geothermal water of the this area,
Enhancing the heat transfer performance of heat transfer media is an effective means of efficiently exploiting geothermal resources. Numerous studies have shown that the addition of nanoscale metals or metal oxides to fluids can effectively improve the heat transfer capacity of the fluid. T...
In well-trapped hydrothermal geothermal reservoirs, the research on injecting CO2 into reservoirs simultaneously with recharge water is carried out, which has both economic and environmental benefits for carbon sequestration.
Methods
A 3D reservoir model was established to study the CO2 break...
Abstract: <p>Hydrogeochemical studies of geothermal fluid are widely used to determine the formation mechanism and occurrence environment and predict favourable exploration areas for geothermal resources.</p></sec><sec><title>Objective
As a newly discovered source rock in the Fuman area of the Tarim Basin, the source rock of the Tumuxiuke Formation has good petroleum exploration prospects, and the geochemical evaluation of the source rock is conducive to guiding exploration.
Abstract: <p>Low-maturity shale oil has great resource potential in Jiyang Depression and has become an important field after the successful breakthrough of medium- to high-maturity shale oil.</p></sec><sec><title>Objective
The purpose of this paper is to clarify the pore and frac...
The Côte d'Ivoire Basin, which is located in the equatorial section of West Africa and features large-scale strike-slip transform zones, is a typical transformed passive continental margin basin. This area is currently a hot spot for oil and gas exploration and has great exploration potenti...
To reveal the structures and evolutionary patterns of faults in the central and northern parts of Tazhong Uplift, Tarim Basin,
Methods
this paper systematically discusses the types of fault structures, geometric characteristics, differential activity mechanisms, and tectonic evolution process...
Abstract: <p>The Qianyingzi Coalmine is located on the west of the Suxian Mining area of the Huaibei Coalfield, adjacent to the outer edge of the southern segment of the Xu-Su Arc Nappe Belt.</p></sec><sec><title>Methods
Based on the latest geological exploration and production da...
To achieve carbon peak and carbon neutrality goals, carbon dioxide flooding and storage are the main technical means for carbon emission reduction. It is crucial to clarify the main controlling factors of carbon dioxide flooding and storage under reservoir conditions, which provides the bas...
Abstract: <p>Since 2020, with in-depth research on the Shuangji structural belt in the Jimsar Depression, Junggar Basin and high-yield oil flow data obtained from the Triassic Jingjingzigou Formation in the Well Satan 1, it has been demonstrated that the Jimsar and Jinan depressions have promising poten...
Fractures commonly occur in the marine carbonate reservoirs of Permian Maokou Formation in Zigong area of Sichuan Basin and have important impacts on reservoir properties, seepage patterns and hydrocarbon enrichment.
Methods
Cores, thin sections, image logs and experimental test data were use...
Landslide susceptibility evaluation is an important means for landslide disaster prevention and control. Unreasonable negative landslide samples will affect landslide susceptibility evaluation, thereby affecting landslide disaster prevention and control. Therefore, it is particularly critic...
Impregnated diamond bits (IDBs) have been widely used in various hard rock drilling activities, especially deep drilling. Drilling process with IDBs relies on diamond edge wrapped by metal matrices to break the rock formation, which means the wear pattern of the diamond bit reflects the...
Rainfall disasters are one of the most common disasters on loess slopes in northern Shaanxi, and revealing the effects of rainfall on loess slope stability is beneficial for preventing and controlling such disasters.
Methods
This research studied the mechanical properties of Q2 loess in north...
To reveal the deformation evolution of the Xinhua landslide in Luding County, Sichuan Province under the comprehensive effects of reservoir impoundment, reservoir water level fluctuations and seasonal rainfall, and to explore the progressive cumulative effect of the strength degradation of ...
Abstract: <p>Guizhou Province is located in Southwest of China, with many mountains and hills, and is a typical karst topography and geomorphology area with frequent geological disasters such as collapses and landslides. The existing dangerous rock mass in the Xiaotunyan collapse zone in Sinan County ha...
Strong earthquake-induced landslides are characterized by large number, wide distribution and large scale, and seriously threaten people's lives and property. Landslide susceptibility mapping (LSM) can quickly predict the spatial distribution of prone areas, which is highly important for re...
The resurrections of ancient landslide deposits are one of the primary geological hazards in the Qinghai-Tibet Plateau and surrounding areas of China and pose significant safety threats to major transportation and water conservancy projects under construction in western China. Therefore, it...
Bedding deep cutting slopes containing weak interlayers are commonly found in slope engineering, whose stability is influenced by two key factors: The strength of the sliding zone soil and the reserved thickness of the base (the distance from the base of an excavated slope to the weak inter...
Fluid-solid interactions in reactive solute transport processes, governed by physical and chemical heterogeneities, dictate the evolution of subsurface geomaterials, resulting in nonlinear behaviours and multiscale features. It has become increasingly evident that examining the feedback ...
In the central Yunnan region, the geological structure is complex and karst formations are prevalent. Sudden water gushing and attenuation of spring flow are among the most difficult problems in tunnel construction. The Mengkuanggou karst water system exhibits a high degree of karst conduit...
Abstract: <p>The special topography of karst areas allows organochlorine pesticides (OCPs) from the surface environment to easily infiltrate the underground environment, posing a threat to groundwater security.</p></sec><sec><title>Methods
To systematically address problems related to the interpretation and evaluation of image logs and expand their application range in geology and engineering fields, firstly, the development history, data processing steps and interpretation process of image log acquisition series are revie...
In geothermal exploration, a clay cap is a typical hydrothermal geothermal system, and its depth and distribution range can provide crucial information for delineating the scope of geothermal resources and determining the location of geothermal drilling. Clay caps are usually composed of a ...
The embedded granularity of target minerals refers to their particle size and distribution in ore, which directly influences the design and effectiveness of ore beneficiation processes. Therefore, the measurement of embedded granularity of target minerals is a crucial task in process minera...
