Statistical assessment of the financial performance of shale-gas wells coupling stochastic and numerical simulation
Available online 20 July 2024
We present a new methodology to statistically determine the net present value (NPV) and internal rate of return (IRR) as financial estimators of shale gas investments. Our method allows us to forecast,...
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Sedimentary architecture of a sandy braided river: insights from a flume experiment
Available online 19 July 2024
Sandy braided river deposits are widely preserved in ancient stratigraphic records and act as a significant type of hydrocarbon reservoir. Due to the frequent and rapid migration of channels within...
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Study of the liquid resistance effect of water-in-oil emulsions in porous media
Available online 19 July 2024
During heavy oil recovery in the Bohai Oilfield, substantial emulsification of oil and water occurred, primarily forming water-in-oil (W/O) emulsions. This phenomenon could alter fluid dynamics within...
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Architectural characterization of carbonate tidal channels in the Mishrif Formation, H Oilfield, Iraq
Available online 18 July 2024
For a better understanding of the strong heterogeneities of the Mishrif Formation in the H Oilfield of southeast Iraq, the characterization of the carbonate architectures has become one of the key research...
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Evaluation of SC-CO2–brine on the micro-mechanical properties of lamina shales by micro-scratch test
Available online 18 July 2024
The mechanism of SC-CO2–brine–rock interaction (SCBRI) and its effect on the mechanical properties of shale are crucial for shale oil development and CO2 sequestration. To clarify the influence of SCBRI...
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Integrating well-logs, 3D seismic, and earthquake data for the comprehensive prediction of 3D in-situ stress orientations: A case study from the Weiyuan area in the Sichuan Basin, China.
Available online 17 July 2024
Determining the orientation of in-situ stresses is crucial for various geoscience and engineering applications. Conventional methods for estimating these stress orientations often depend on focal mechanism...
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Evaluation of the combined influence of geological layer property and in-situ stresses on fracture height growth for layered formations
Available online 14 July 2024
Fracture geometry is important when stimulating low-permeability reservoirs for natural gas or oil production. The geological layer (GL) properties and contrasts in in-situ stress are the two most important...
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Exceptional functionalized dual-acidic ionic liquid: High-efficiency catalytic reaction medium for oxidation desulfurization
Available online 11 July 2024
The development of highly active functionalized ionic liquids (ILs) as both extractants and catalysts for use in achieving deep desulfurization continues to pose challenges. In this study, a highly...
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Characterization of petrophysical and seismic properties for CO2 storage with sensitivity analysis
Available online 9 July 2024
Saline aquifers are considered as highly favored reservoirs for CO2 sequestration due to their favorable properties. Understanding the impact of saline aquifer properties on the migration and distribution...
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The evolution of clay mineral and its indication of hydrocarbons under overpressure: An example from the shale of the Qingshankou Formation in the Gulong Sag
Available online 9 July 2024
The enrichment and development of shale oil are significantly influenced by the evolution of clay minerals. In this paper, the mineralogy and clay mineral crystallinity of shale samples from Wells X1,...
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3D reverse-time migration for pure P-wave in orthorhombic media
Available online 9 July 2024
Compared with the transverse isotropic (TI) medium, the orthorhombic anisotropic medium has both horizontal and vertical symmetry axes and it can be approximated as a set of vertical fissures developed...
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Potential application of wet-phase modified expandable graphite particles as a novel in-depth profile control agent in carbonate reservoirs
Available online 6 July 2024
Novel wet-phase modified expandable graphite (WMEG) particles were developed for in-depth profile control in carbonate reservoirs. The harsh environment of carbonate reservoirs (≥ 130 °C, ≥ 22 × 104...
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Review of carbonated water injection as a promising technology to enhance oil recovery in the petroleum industry: Challenges and prospects
Available online 6 July 2024
Carbonated water injection (CWI) is a promising enhanced oil recovery (EOR) technology that has received much attention in co-optimizing CO2 storage and oil recovery. This study provides a comprehensive...
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SeisResoDiff: Seismic resolution enhancement based on a diffusion model
Available online 6 July 2024
High resolution of post-stack seismic data assists in better interpretation of subsurface structures as well as high accuracy of impedance inversion. Therefore, geophysicists consistently strive to...
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Selection and Application of Wavelet Transform in High-frequency Sequence Stratigraphy Analysis of Coarse-grained Sediment in Rift Basin
Available online 4 July 2024
Wavelet transformation is a widely used method in high-frequency sequence stratigraphic analysis. However, the application is problematic since different wavelets always return the same sequence analysis...
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Sedimentological and geochemical characteristics of Lower Cambrian Qiongzhusi shale in the Sichuan Basin and its periphery, SW China: Implications for differences in organic matter enrichment
Available online 3 July 2024
Few studies have systematically investigated the factors controlling organic matter enrichment in shales from the Qiongzhusi Formation, within and surrounding the Sichuan Basin, under different depositional...
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High-temperature resistant polymer nanocomposites with exfoliated organic-modified montmorillonite nanosheets strongly adsorbed on polymer chains
Available online 2 July 2024
It has been demonstrated that almost all polymer-clay nanocomposites show higher temperature stability than that of pure polymer, which is attributed to the active exfoliated clay nanosheet firmly adsorbed...
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Pore-scale probing CO2 huff-n-puff in extracting shale oil from different types of pores using online T1–T2 nuclear magnetic resonance spectroscopy
Available online 2 July 2024
CO2 huff-n-puff shows great potential to promote shale oil recovery after primary depletion. However, the extracting process of shale oil residing in different types of pores induced by the injected...
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A new method for fluid identification and saturation calculation of low contrast tight sandstone reservoir
Available online 2 July 2024
The resistivity difference between oil and gas layers and the water layers in low contrast tight sandstone reservoirs is subtle. Fluid identification and saturation calculation based on conventional...
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Experimental deformation of shales at elevated temperature and pressure: Pore-crack system evolution and its effects on shale gas reservoirs
Available online 2 July 2024
Although many studies based on naturally deformed samples have been carried out to investigate the pore-crack characteristics of shales, studies based on high temperature (T) and high pressure (P) deformation...
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Proppant transport in rough fracture networks using supercritical CO2
June 2024
Proppant transport within fractures is one of the most critical tasks in oil, gas and geothermal reservoir stimulation, as it largely determines the ultimate performance of the operating well. Proppant...
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Influence of filler characteristics on particle removal in fluid catalytic cracking slurry under an alternating electric field
June 2024
The characteristics of the packing material under an alternating electric field are an important factor in the removal of FCCS particles. In this study, the electric field distribution of a separation...
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Molecular investigation into the transformation of recalcitrant dissolved organic sulfur in refinery sour water during stripping process
June 2024
Refinery sour water primarily originates from the tops of towers in various units and coker condensate, and cannot be discharged directly to a wastewater treatment plant due to high levels of chemical...
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Experimental study of the influencing factors and mechanisms of the pressure-reduction and augmented injection effect by nanoparticles in ultra-low permeability reservoirs
June 2024
Nanoparticles (NPs) have gained significant attention as a functional material due to their ability to effectively enhance pressure reduction in injection processes in ultra-low permeability reservoirs....
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The mechanisms of thermal solidification agent promoting steam diversion in heavy oil reservoirs
June 2024
At high cycles of steam huff & puff, oil distribution in reservoirs becomes stronger heterogeneity due to steam channeling. Thermal solidification agent can be used to solve this problem. Its solution...
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