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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Numerical simulation of oil and gas pipeline corrosion based on single- or coupled-factor modeling: A critical review
October 2023
Numerical simulation is an effective research approach to assess the condition and predict the remaining service life of process pipelines suffering corrosion hazards. This work comprises a critical...
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Pore-scale numerical simulation of supercritical CO2-brine two-phase flow based on VOF method
October 2023
CO2 capture and storage technology is favorable for the reduction of CO2 emissions. In recent years, a great number of research achievements have been obtained on CO2 geological storage from nano scale...
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A multi-scale geological–engineering sweet spot evaluation method for tight sandstone gas reservoirs
October 2023
Exploration and development practices have proved that staged volumetric fracturing stimulation in horizontal wells is a key technology for tight sandstone gas development, and reservoir sweet spot...
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Types and sedimentary genesis of barriers and interlayers in the composite turbidite sand bodies of a deep-water canyon: A case study of the Central Canyon in the Qiongdongnan Basin
October 2023
Deep-water oil and gas is currently the hot spot and difficulty of global oil and gas exploration, and the complex flow process inside the turbidite channels of deep-water canyons makes it difficult...
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New method for the transient simulation of natural gas pipeline networks based on the fracture-dimension-reduction algorithm
October 2023
The transient simulation technology of natural gas pipeline networks plays an increasingly prominent role in the scheduling management of natural gas pipeline network system. The increasingly large...
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Optimizing the thermal energy storage performance of shallow aquifers based on gray correlation analysis and multi-objective optimization
October 2023
The operation parameters and well layout parameters of aquifer thermal energy storage (ATES) system directly influence the thermal energy storage performance. How to optimize the parameters to obtain...
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China's CO2 pipeline development strategy under carbon neutrality
October 2023
Under China's goal of carbon neutrality, there is a huge demand for carbon dioxide (CO2) capture, utilization, and storage technology (CCUS). CO2 transport, as a crucial link in the CCUS industrial...
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Experimental study on the acoustic wave propagation characteristics of bedding shales under changes in temperature and pressure
October 2023
To determine the acoustic wave propagation characteristics of bedded shales under different confining pressures and temperatures, shales from the Longmaxi Formation in the Sichuan Basin are taken as...
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Optimal rotor blade swirl law for the last stage of a stationary turbine with an axial diffuser
October 2023
The flow kinetic-energy conversion into the pressure-forces field in the outlet turbine diffuser increases the heat drop to the last stage, generating additional power. The recovery properties of the...
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An automatic extraction method for geothermal radiation sources based on an LST retrieval algorithm and semantic network
October 2023
Geothermal resources are efficient, renewable and clean energy sources, and their reservoirs are usually closely associated with high-temperature regions of the land surface. Current exploration methods...
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Thermal‒hydraulic‒mechanical‒chemical coupling analysis of enhanced geothermal systems based on an embedded discrete fracture model
October 2023
Enhanced geothermal system (EGS) is subject to the comprehensive effects of multiple physical fields during the long-term heat extraction process, including hydraulic (H), thermal (T), mechanical (M)...
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Fracturing fluid imbibition impact on gas-water two phase flow in shale fracture-matrix system
August 2023
A large amount of fracturing fluid in hydraulic fracturing is imbibed into the shale fracture/matrix, which leads to significant uncertainty in gas recovery evaluation. The mechanism of imbibition impact...
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EOR technologies for fractured-vuggy carbonate condensate gas reservoirs
August 2023
There are abundant marine carbonate rock resources in China, which are dominated by fractured-vuggy carbonate oil and gas reservoirs accounting for over two thirds of proved reserves. The fractured-vuggy...
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Enhanced gas recovery: Theory, technology, and prospects
August 2023
Research on the enhanced gas recovery (EGR) technology is urgently needed in most of China's major gas fields due to low recovery in their late development stages. To promote progress in ERG theory...
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Life-cycle deliquification techniques and their application for deep shale gas reservoirs
August 2023
Deep shale gas resources in the Sichuan Basin have great potential, and this is a major area for future shale gas exploration and development. Deep shale gas wells face problems with liquid loading...
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Microscopic gas displacement efficiency of enhanced gas recovery in carbonate gas reservoirs with edge and bottom water
August 2023
Carbonate gas reservoirs with edge and bottom water contain abundant reserves, making them key production targets in the Tarim Basin, Sichuan Basin, Ordos Basin, and other petroleum provinces. Water...
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Numerical simulation of proppant transport from a horizontal well into a perforation using computational fluid dynamics
August 2023
With the increasing global demand for oil and gas, the development of unconventional resources such as shale gas is becoming ever more important. The key to developing unconventional oil and gas resources...
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Characterizing multi-scale shale pore structure based on multi-experimental imaging and machine learning
August 2023
An accurate and comprehensive understanding of shale pore structure is fundamental and critical for accurate reserves evaluation and efficient hydrocarbon development. Thus, by taking the shale of Paleogene...
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