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ISSN: 1995-8226

Coking behavior during the cooling process of cracked hydrocarbon fuels: Characterization of coke and elucidation of condensation coking mechanism

The active cooling technology of endothermic hydrocarbon fuels is a key way to solve the thermal protection of high-speed aircraft engines, but the condensation coking problem during engine shutdown...

Method for determining the installation interval of vortexing cuttings removal tool and its mechanism

Recent advancements in drilling technology have driven substantial progress in cuttings removal tool development, particularly for addressing borehole cleaning challenges in highly deviated directional...

Deep feature learning for anomaly detection in gas well deliquification using plunger lift: A novel CNN-based approach

Timely anomaly detection is critical for optimizing gas production in plunger lift systems, where equipment failures and operational issues can cause significant disruptions. This paper introduces a...

Quantitative evaluation of lateral sealing of faults in metamorphic rocks: A case study of Bohai Bay Basin in China

The Archean buried-hill metamorphic reservoirs in the Bohai Bay Basin are examples of metamorphic rocks having faults with diverse strikes as a consequence of multi-phase tectonic evolution. For faults...

Improved probabilistic seismic AVO inversion constrained by instantaneous phase using quadratic PP-reflectivity approximation and IA2RMS-Gibbs algorithm

Seismic amplitude variation with offset (AVO) inversion is a cornerstone of oil and gas reservoir prediction, enabling the estimation of subsurface elastic parameters and characterization of stratigraphic...

Modification of the bubble drag force model and prediction of gas-liquid two-phase flow dynamics in blade-type multiphase pumps

In multiphase pumps transporting gas-liquid two-phase flows, the high-speed rotation of the impeller induces complex deformations in bubble shapes within the flow domain, making the prediction of gas-liquid...

Focusing mechanism and anisotropy correction of array induction logging responses for shale reservoirs in horizontal wells

We have developed a novel method for correcting resistivity anisotropy in array induction logging (AIL) for shale reservoirs drilled with horizontal wells. This method is featured by two aspects: simplifying...

Automated labeling and segmentation based on segment anything model: Quantitative analysis of bubbles in gas–liquid flow

The quantitative analysis of dispersed phases (bubbles, droplets, and particles) in multiphase flow systems represents a persistent technological challenge in petroleum engineering applications, including...

Terrestrial paleoenvironmental response of Early Eocene Climate Optimum: implications for organic matter enrichment in the South China Sea

The Early Eocene Climate Optimum (EECO) represents the peak of the early Paleogene greenhouse climate. However, a comprehensive understanding of the terrestrial paleoenvironmental response to the EECO...

Quantitative evaluation of brittleness anisotropy and its influencing factors in terrestrial shale

Brittleness is pivotal in predicting shale reservoir quality and designing hydraulic fracturing strategies. However, intricate diagenetic environment of shale, characterized by distinct bedding structures,...

Joint PP and PS seismic inversion using predicted PS waves from deep learning

Seismic AVO/AVA (amplitude-versus-offset or amplitude-versus-angle) analysis, based on prestack seismic angle gathers and the Zoeppritz equation, has been widely used in seismic exploration. However,...

A cascaded pipeline defect detection and size estimation method based on the YOLOv11 and physics-informed network using the MFL data

Long-distance oil and gas pipelines are crucial in the global energy network. However, due to complex internal and external environments, defects can be formed on a pipeline’s surface, posing severe...

The formation mechanism of high-quality clastic rock reservoir controlled by coupling of "structure-lithofacies-fluid" in the foreland thrust belt in northern Kuqa, Tarim Basin, Northwestern China

The formation mechanisms of deep high-quality reservoirs in the Dibei area of Kuqa Depression foreland thrust belt were investigated through an integrated multidisciplinary approach combining petrographic...

Analysis on adsorption capacity of coal, gas content and methane carbon isotope characteristics in coal: A case study from Southwestern Qinshui Basin,China

The methane adsorption capacity, gas content, and carbon isotope characteristics of coal are crucial parameters that determine the productivity of coalbed methane (CBM) wells and their development potential....

Enhanced oil recovery with a thermo-thickening viscoelastic surfactant: A comparison with polymer

High-molecular-weight partially hydrolyzed polyacrylamide (HPAM) has extensively used in enhanced oil recovery (EOR) process; however, it suffers from poor injectivity into low-permeability oil reservoirs...

Incremental dimensionality reduction for efficiently solving Bayesian inverse problems

The inversion of large sparse matrices poses a major challenge in geophysics, particularly in Bayesian seismic inversion, significantly limiting computational efficiency and practical applicability...

Self-sealing control principle and technology of in-situ temperature pressure preserved coring for deep oil and gas

Accurately evaluating the quality and scale of deep oil and gas reservoirs is the key to effectively exploring and developing deep oil and gas resources. Changes in temperature and pressure can cause...

A novel fusion of interpretable boosting algorithm and feature selection for predicting casing damage

Casing damage resulting from sand production in unconsolidated sandstone reservoirs can significantly impact the average production of oil wells. However, the prediction task remains challenging due...

Effects of natural fractures in cap rock on CO2 geological storage: Sanduo Formation and Dainan Formation of the early Eocene epoch in the Gaoyou Sag of the Subei Basin

During the CO2 injection and geological storage process, the integrity of the cap rock significantly influences the long-term safety of CO2 storage. Natural fractures within the cap rock serve as potential...

An experimental study on Huff-and-Puff oil recovery for tight-tuff heavy oil reservoirs by synergistic with viscosity reducer and CO2 utilizing online NMR technology

The tight-tuff heavy oil reservoir exhibits severe heterogeneity and is characterized by high density, high viscosity, and a high wax content, posing significant challenges for its development. While...

The genetic mechanism of salt minerals in Fengcheng Formation in Hashan area, northwestern margin of Junggar Basin

The Fengcheng Formation in the Hashan area, located on the northwestern margin of the Junggar Basin, represents a saline-alkaline lake facies with fine-grained mixed sedimentation. This formation is...

Geochemistry and genesis of marine shallow gas in the Pearl River Mouth Basin (PRMB), South China Sea

In the Pearl River Mouth Basin of the northern South China Sea, extensive commercial shallow gas reservoirs have recently been discovered. However, their formation mechanisms remain poorly constrained....

Thermal Maturity Effect on the Microscopic Pore Structure and Gas Adsorption Capacity of Shale Gas Reservoirs: A Review

Organic matter (OM) is the primary gas occurrence carrier in shale reservoirs due to their abundant nanopores. To reveal the OM pore structure, adsorption capacity and evolution during thermal maturation,...

Preparation and performance evaluation of a sand inhibiting and water control agent based on supramolecular interactions

To address two key challenges (sand production and high water cut) in the development of loose sandstone reservoirs, a supramolecular sand inhibiting and water control agent, PDKM, was prepared using...

Structural determinants of asphaltenes behavior: heteroatom-driven aggregation dynamics and viscosity enhancement in heavy oil systems

Heavy oil, constituting a significant portion of global oil reserves, presents unique challenges in extraction and processing due to its high viscosity, largely influenced by asphaltenes and their heteroatom...

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