Pore-scale investigation of bottom water invasion dynamics in carbonate gas reservoirs with different interlayer distributions
Available online 17 April 2024
During the development of carbonate reservoirs, the risk of bottom water invasion is a frequent concern. Pore-scale simulation methods are commonly acknowledged as effective tools for investigating...
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Cause of granite in Lancang County and its geothermal implications
Available online 17 April 2024
Geothermal energy is a clean, abundant, and dependable energy source. Because the formation of a geothermal field is often closely linked to the distribution and development of granite, it is crucial...
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Distribution of geothermal resources in Eryuan County based on entropy weight TOPSIS and AHP‒TOPSIS methods
Available online 16 April 2024
Geothermal resources have a very broad development prospect owing to their clean nature; accurate evaluation of their potential is an important basis for the realization of fine zoning and large-scale...
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Simulating the impact of complex fracture networks on the heat extraction performance of hot-dry rock masses
Available online 15 April 2024
The complex network of fractures formed by randomly distributed natural fractures in hot-dry rocks (HDRs) complicates the heat transfer regularity of injected fluid. On the basis of the fracture network,...
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Diagenesis and reservoir property variations of tight sandstone with burial depths ranging from shallow to ultra-deep in the Kuqa Depression, Tarim Basin, China
Available online 14 April 2024
The Lower Cretaceous Bashijiqike Formation, which is an important gas exploration target in the Kuqa Depression, Tarim Basin, China, is an excellent case illustrating the diagenesis and reservoir property...
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Application of wide-field electromagnetic method for favorable target optimization in the Heishan granite geothermal area of Yunnan Province
February 2024
The Heishan geothermal area is positioned above the sole Yunnan–Tibet high-temperature geothermal belt, where huge geothermal energy resources are available. Utilizing the characteristics of large exploration...
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Experiments and analysis of hydraulic fracturing in hot dry rock geothermal reservoirs using an improved large-size high-temperature true triaxial apparatus
February 2024
Hydraulic fracturing has become the main technology for the efficient development of geothermal energy in hot dry rock (HDR), however, few studies on the propagation behavior and mechanism of HDR hydraulic...
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Development simulation in Gucheng County, Hebei Province: Comparative study of the thermal storage development of clastic and carbonate rocks
February 2024
There are two sets of thermal reservoirs with different rock types in the Gucheng geothermal field of Hebei Province, namely the Ordovician fractured carbonate thermal reservoir and the Neogene Guantao...
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Reinjection modeling in sandstone geothermal reservoirs: A case study of Dezhou geothermal heating demonstration project
February 2024
To ensure the long-term and sustainable development and utilization of geothermal resources, the extracted geothermal water should be reinjected. Considering Guantao Formation in the Dezhou Area, the...
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Geothermal resource distribution and prospects for development and utilization in China
February 2024
China is tectonically composed of a series of plates and orogenic belts and has been influenced by the Pacific and Indian plates since the Late Paleozoic, forming a regular distribution of Mesozoic...
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Analysis of a wide field electromagnetic method for deep geothermal factors in Sanying Basin, western Yunnan, China
February 2024
Geothermal energy is a renewable energy with large scale and wide distribution. Geothermal resources are abundant in western Yunnan, China, but the work is less. In this study, a wide field electromagnetic...
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Evaluation of the development potential of hot dry rock in Hainan Island
February 2024
Hainan Island is located in the northwestern South China Sea at the boundary of two tectonic plates. Surface features and actual drilling have confirmed that there are rich geothermal resources in the...
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Geothermal model and development area of a fault-controlled geothermal zone along the Fujian coastal area of southeastern China
February 2024
China is rich in geothermal resources, especially in Fujian Province, where 207 exposed hot springs have been discovered. The maximum temperature recorded in geothermal wells is above 121 °C in this...
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Fluid–space–solid three-terminal thermal storage classification
February 2024
Thermal storage has not yet been classified in a unified way. By analyzing the factors of thermal storage and the interactions of fluids, spaces, and solids, this study proposes a three-level classification...
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An integrated approach to analyze the formation models of geothermal resources in complicated areas with low exploration: A case study of the Midu County in Yunnan Province, China
February 2024
As an important component of the exploration and evaluation of geothermal resources, the formation model has unique formation and distribution rule in different regions. Reliable geological models need...
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The fast-growing geothermal industry in China
February 2024
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Key technologies and orientation of EGR for the Sulige tight sandstone gas field in the Ordos Basin
December 2023
The Sulige Gas Field in the Ordos Basin is the largest tight gas field in China, with proved reserves exceeding 2 × 1012 m3. As the main contributor to gas production in PetroChina Changqing Oilfield...
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Research progress on corrosion and hydrogen embrittlement in hydrogen–natural gas pipeline transportation
December 2023
Hydrogen, clean, efficient and zero-carbon, is seen as a most promising energy source. The use of existing gas pipelines for hydrogen–natural gas transportation is considered to be an effective way...
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A viscosity-soluble type biomimetic self-healing cement slurry system
December 2023
With the development of cementing slurry technology, cementing self-healing has become one of the most effective technologies to prevent and treat oil and gas channeling and improve long-term sealing...
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Optimization of fracturing stages/clusters in horizontal well based on unsupervised clustering of bottomhole mechanical specific energy on the bit
December 2023
Multi-cluster perforation and multi-staged fracturing of horizontal well is one of the main technologies in volumetric fracturing stimulation of unconventional oil and gas reservoirs, but unconventional...
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Progress in and research direction of key technologies for normal-pressure shale gas exploration and development
December 2023
Normal-pressure shale gas is an important object of shale gas reserves and production increase with broad resource prospects in China, but its large-scale benefit development is still confronted with...
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Brazilian splitting experiment and finite element simulation analysis of the influence of bedding loading angle on shale fracture mode
December 2023
During the diagenetic processes of compaction and cementation, shale forms multiple beddings, significantly effecting the rock anisotropy. Therefore, it is important to study the effect of bedding on...
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Energy analysis of a flue gas hydrate-based desalination system with liquefied natural gas cold energy
December 2023
A three-stage flue gas hydrate-based desalination system was designed using liquefied natural gas (LNG) cold energy. This system could increase the CO2 amount-of-substance fraction in the flue gas from...
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Modelling underground coal gasification: What to start with
December 2023
Underground coal gasification (UCG) is widely regarded as a clean coal technology that holds enormous potential to decarbonize the world's coal industry. It converts coal underground into combustible...
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Evaluation of the controlling effect of new annulus materials on casing deformation in shale gas wells
December 2023
Shale gas horizontal wells have severe problems of casing deformation and failure due to formation displacement during fracturing. Statistics show that casing deformation problems occur frequently in...
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