Oil and Gas Center

Synthesis study of formation bioavtur-type hydrocarbons from waste cooking oil-derived biodiesel (FAME) through sub-micron bubbles ozonolysis reactor

The fossil fuel crisis has encouraged the development of biofuels as a renewable alternative fuel for the aviation sector. This study examines the ozonolysis method using a sub-micron bubble reactor to convert waste cooking oil-derived biodiesel (fatty acid methyl esters, FAME) i...

Effects of Cr, Al, and Mo on the Mechanical Properties and CO2 Corrosion Resistance of Cr-Al Alloyed Oil Well Tubular Steel

CO2 corrosion is one of the major failure mechanisms affecting oil well tubular steels during oil and gas extraction. Although high-Cr stainless steels exhibit excellent corrosion resistance, their high cost limits practical applications. Therefore, developing economical low-Cr s...

Two-phase flow simulation in low-permeability heterogeneous reservoirs with a fully implicit scheme-based enriched physics-informed neural network

Two-phase flow simulation in low-permeability heterogeneous reservoirs is challenging because low-velocity non-Darcy flow, capillary pressure, fractures, and heterogeneity produce tightly coupled and highly nonlinear pressure–saturation equations. A Fully Implicit Scheme-based En...

Hydrocarbon Generation Kinetics and History of the Middle Jurassic Yangye Formation in the Southwestern Tarim Basin Piedmont, Northwest China

Abstract Shale gas discovered in the Middle Jurassic Yangye Formation (Well TNY1) confirms the hydrocarbon generation potential of the Southwestern Tarim Basin Piedmont (SWTBP), yet its hydrocarbon generation patterns, processes, and potential require clarification. This study co...

Pressure-Controlled Drainage Strategy for Deep Coalbed Methane Wells Considering Stress Sensitivity

China’s deep coalbed methane (CBM) resources hold significant development potential, yet their commercial exploitation remains hindered by four interrelated reservoir challenges: substantial burial depth, elevated in situ stress, ultra-low matrix permeability, and pronounced stre...

Geomechanical Characteristics of Cretaceous Ultra-Deep Sandstone Reservoirs in the Southern Keshen Area, Kuqa Depression: Implications for Exploration and Development

Significant progress has been made in exploring ultra-deep tight sandstone gas in the Tarim Basin, but sweet spot prediction remains challenging in the Keshen block of the Kuqa Depression. Based on integrated geological, experimental, and seismic data, this study characterizes th...

Spray‐Driven Corrosion‐Resistant Superhydrophobic Coating With Multiscale Particles Reinforcement and Its Applicability to Various Environments

ABSTRACT Insufficient mechanical strength and tedious preparation processes of corrosion‐resistant superhydrophobic coatings have long restricted their practical application. In this work, a superhydrophobic coating is proposed through the incorporation of multiscale micro‐glass...

Integrated Dynamic Evaluation and Prospect Screening for Infill-Well Optimization in a Tight Sandstone Gas Reservoir

As a typical tight sandstone gas reservoir, the study area has entered a production-decline stage after years of development, and well pattern infilling has become a key means of improving the recovery factor. A cluster-analysis-based classification divided the reservoir into thr...

Mechanisms and safety assessment of support tilting for arch crossing pipelines in saline-alkali environments

To address the 3°-4° tilting issue of an arch crossing gas pipeline support structure in a saline-alkali wetland environment, a comprehensive quality evaluation of the pipeline and welds was performed using multiple non-destructive testing (NDT) techniques, including high-precisi...

The Significance of Diagenetic System Evolution to the Formation and Preservation of Hydrothermal Dolomite Reservoirs: A Case Study of the Permian Qixia Formation, Southwestern Sichuan, China

Abstract Understanding the evolution of diagenetic systems is crucial for elucidating the formation mechanisms of high-quality carbonate reservoirs. This study focuses on hydrothermal dolomite reservoirs developed in the platform margin zone of the Qixia Formation in the southwes...

Research on the Evolution of Wellbore Pressure During Managed Pressure Casing Running

With the continuous advancement of deep and ultra-deep well drilling technologies, formations with complex pressure windows are becoming increasingly common. During casing running operations, it is necessary to ensure both leak prevention in loss-prone formations and pressure sta...

Enhanced 3D Gravity Inversion Using ResU-Net with Density Logging Constraints: A Dual-Phase Training Approach

Abstract Gravity exploration has become an important geophysical method due to its low cost and high efficiency. With the rise of artificial intelligence, data-driven gravity inversion methods based on deep learning (DL) possess physical property recovery capabilities that conven...

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

ABSTRACT In the field of mining, conventional methods that rely on protective coal pillars result in significant wastage of coal resources. To achieve the dual objectives of resource recovery and roadway stability control, this study utilizes theoretical analysis, numerical simul...

Effect ofFracture Aperture and Water Saturation onthe In Situ Conversion of Tar-Rich Coal

Abstract With abundant coal resources globally, in situ conversion technology, an emerging unconventional energy development method, is a crucial pathway for achieving efficient and clean utilization of tar-rich coal. However, its application is challenged by the heterogeneity of...