A novel unstructured-grid generator using upscaling applied to a compositional reservoir simulator
June 2026
This work introduces a novel unstructured grid generator using an upscaling technique and the Element-based Finite Volume Method (EbFVM). The proposed grid generator can either replicate the original...
Cenozoic morphological evolution of the Tanintharyi Shelf carbonate platform, Andaman Sea Basin: Implications for hydrocarbon reservoir potential
June 2026
The Tanintharyi Shelf in the Andaman Sea Basin hosts a significant yet largely underexplored Cenozoic carbonate platform with substantial hydrocarbon potential. This study utilizes an integrated analysis...
Grain-size control on lacustrine fan-delta architecture in source-to-sink steep-slope zones: Insights from field surveys and flume-tank experiments
June 2026
Lacustrine fan deltas, key depositional systems at basin margins, serve as crucial hydrocarbon accumulation sites. Previous studies have largely focused on depositional slope, overlooking the role of...
Paleoenvironmental and paleoclimatic evolution of the Piçarras Formation, Santos Basin, Brazil, from cuttings and well logs
June 2026
Reconstructing syn-rift paleoenvironmental systems requires an understanding of the complex interplay among tectonics, climate, and lacustrine sedimentation, which is crucial for petroleum exploration....
Residual magnetic fields from magnetic flux leaking detection accelerate microbiologically influenced corrosion of X80 pipeline steel induced by Desulfovibrio desulfuricans in sea mud environment
June 2026
Subsea pipelines buried in marine sediments are highly susceptible to microbiologically influenced corrosion (MIC). Although magnetic flux leakage (MFL) inspection is widely employed for pipeline integrity...
Co-pyrolysis of oily sludge and lignin for fabrication of high-performance adsorbent for oily wastewater treatment
June 2026
Oily sludge, a hazardous by-product of the petroleum industry, poses significant environmental risks due to its elevated levels of hydrocarbons and heavy metals. As conventional disposal methods often...
Stress characteristics and sealing mechanism of steel-titanium heterogeneous drill pipe joints
June 2026
Titanium alloy drill pipes exhibit promising potential for ultra-deep well drilling due to their high specific strength and superior corrosion resistance. However, the engagement surfaces of the pin...
Assessment of VOC mitigation from equipment leaks in petroleum refining in Guangdong, China: Insights from a long-term leak detection and repair (LDAR) implementation
June 2026
Fugitive volatile organic compound (VOC) emissions from equipment leaks in the petroleum refining industry threaten ambient air quality and human health. The impact of a long-term leak detection and...
Performance of multifunctional viscous slickwater for enhanced oil recovery in tight oil reservoirs
June 2026
Economically recovering oil from tight/shale reservoirs requires extensively developed propped fracture networks and rock matrix with sufficient oil mobility, which imposes higher demands on the fracturing...
A facies-constrained flow-network model for fast history matching and production optimization of polymer flooding reservoirs
June 2026
With the rising water cut in mature oil fields, polymer flooding has emerged as a critical Enhanced Oil Recovery (EOR) technique. However, high-fidelity numerical simulations for history matching and...
Mechanisms of miscible gas injection for ultra-low permeability carbonate reservoirs: A case study of the S reservoir in the H oilfield, Iraq
June 2026
The S reservoir is a typical Middle Eastern carbonate formation characterized by a formation temperature of 89 °C, salinity of 200,000 mg/L, and permeability below 1 mD. It exhibits low and continuously...
Genesis of lamina combinations and intelligent well-logging interpretation in the upper Xiaganchaigou Formation, Yingxi area, Qaidam Basin, China
June 2026
The laminar sedimentary structures of saline lacustrine mixed rocks affect both organic matter enrichment and reservoir storage performance. However, due to the small-scale nature of laminae, large-scale...
OFC
June 2026
Miscibility enhancing agents for improving oil recovery of CO2 flooding in low-permeability reservoirs: A study based on core displacement and nuclear magnetic resonance
June 2026
CO2 miscible flooding is a key method to improve oil recovery. However, under most petroleum reservoir conditions, CO2 cannot achieve miscibility with crude oil. Therefore, reducing the minimum miscible...
Phase-based polarized direct envelope inversion with total variation regularization for simultaneous source seismic data: Application to SEG 2014 Chevron blind test dataset
June 2026
In subsalt hydrocarbon exploration, the strong velocity contrast associated with salt structures poses significant challenges to conventional full waveform inversion (FWI) method. While direct envelope...
Mechanisms of CO2 nanobubble-enhanced oil recovery: Interfacial regulation and flow behavior control in porous media
June 2026
Nanobubbles (NBs) have unique physicochemical properties, including a large specific surface area and high mass transfer efficiency. They can be produced using environmentally friendly, low-cost physical...
Insight into the role of masking agents in inhibiting water-based mud contamination of oil well cement slurry
June 2026
During cementing operations, unavoidable contact between water-based mud (WBM) and oil well cement (OWC) often degrades OWC performance. This is particularly problematic in natural gas or offshore wells,...
Multi-spherical interactions driving the generation, accumulation and distribution of natural gases and CO2 resources in the Changling Fault Depression, Songliao Basin, China
June 2026
This study systematically investigates the genesis, migration, accumulation, and distribution patterns of natural gas and CO2 in the Changling Fault Depression of the Songliao Basin through an interdisciplinary...
In-situ combustion of heavy oil within a vuggy carbonate reservoir: Part II—Mechanism of permeability inversion and rock fabric transformation
June 2026
Predicting the performance of in-situ combustion (ISC) in carbonate reservoirs is notoriously challenging. This study reveals a paradoxical permeability inversion phenomenon: initially high-permeability...
Dynamic evolution of stress interference during the multi-layer exploitation of sand-shale interacted continental shale oil reservoirs
June 2026
Accurate prediction of stress evolution induced by production pressure depletion after hydraulic fracturing is essential for efficient development of stacked continental shale reservoirs. This study...
Artificial intelligence in petroleum and natural gas prospect evaluation and prediction
June 2026
Artificial intelligence has shown great performance and considerable potential in petroleum and natural gas prospect evaluation and prediction (PPEP). Multiple machine learning (ML) and deep learning...
A data augmentation method for lacustrine shale lithofacies classification based on a conditional diffusion probabilistic model: A case study from the Dongying Depression, Bohai Bay Basin, China
June 2026
Accurate identification of lithofacies is critical for shale hydrocarbon exploration and development. Although machine learning (ML) is one of the most effective approaches for predicting shale lithofacies,...
A critical review of analytical oil flow rate models for vapor extraction and its non-condensable gas-based hybrids
Available online 30 June 2026
Analytical models are the preliminary reservoir engineering processes performance prediction tools that are quick and less costly compared with experiments and simulations when sufficiently modelled...
Numerical investigation of the mechanisms of fluid pressure drop induced by rod centralizer in progressing cavity pump wellbore annulus
Available online 30 June 2026
To elucidate the pressure drop characteristics and underlying mechanisms induced by a rod centralizer in a progressing cavity pump (PCP) wellbore annulus, a CFD-based multiphase flow numerical model...
