China University of Petroleum, Beijing

A Data–Physics Dual-Driven Intelligent Diagnostic Method for Downhole Drilling Risks

Safe drilling in hydrate-bearing sediments is essential for environmentally responsible natural gas hydrate development. Complex pressure variations, fluid migration, and mechanical disturbances during drilling may increase the risks of gas influx, lost circulation, pipe sticking...

Low-Carbon Valorization of Waste PE Mulch Film: A Carbon Footprint Comparative Analysis of Typical End-of-Life Treatment Pathways

Widespread polyethylene (PE) mulch film application has caused severe farmland plastic pollution and greenhouse gas emissions. To identify low-carbon end-of-life pathways for waste agricultural mulch film, this study established a full life-cycle carbon footprint model comparing...

Stratigraphy-guided Ensemble Smoother Multi-Data Assimilation for poststack seismic inversion

Abstract Poststack seismic acoustic impedance inversion is of vital significance in reservoir prediction. Nonetheless, conventional poststack seismic inversion approaches linearize the relationship between seismic response and acoustic impedance, which restricts their adaptation...

Do National Eco-Industrial Demonstration Parks Promote Corporate Green Innovation? The Role of the Green Innovation Ecosystem

The establishment of National Eco-industrial Demonstration Parks (NEIDPs) represents a prominent industrial policy for fostering green development in China, yet its causal effects on corporate green innovation (CGI) remain underexplored. This study investigates the impact of NEID...

Cross-scale Data-Driven Heat Flow Prediction in the Ordos Basin and Adjacent Areas: An XGBoost Model with SHAP Interpretability

Summary Terrestrial heat flow is a fundamental parameter characterizing the thermal regime of sedimentary basins, but sparse and unevenly distributed measurements limit regional heat flow mapping. This study integrated cross-scale geological and geophysical features to compare XG...

Bottom-Hole Pressure Optimization in Marine-Continental Transitional Shale Gas Reservoir Considering Stress Sensitivity

Abstract The bottom-hole pressure (BHP) directly affects the stress state in formation, which in turn affects the productivity of hydraulically fractured horizontal wells. In this study, the porosity and permeability stress sensitivity experiments were conducted on different mari...

Seismic wave attenuation in saturated porous media: A new fractal double-porosity perspective

Summary The influence of rock microstructure makes quantifying seismic wave dispersion and attenuation in saturated rock a fundamental challenge. This challenge arises from the multiscale heterogeneity of the pore distribution and the consequent fluid distribution, which gives ri...

Properties and calculation of pythagorean triples

Pythagorean triples, which are sets of three natural numbers (a,b,c) satisfying the equation a2+b2=c2, are among the oldest and most fascinating subjects in number theory. This paper is motivated by the potential of Pythagorean triples as a vehicle for curriculum enrichment at va...

A New Understanding of Stratigraphic Development in Subsurface Arid Alluvial Fans: Implications From the Northwest Margin of the Junggar Basin, China

ABSTRACT Alluvial fans are common sedimentary deposits on Earth and serve as crucial reservoirs for underground oil and gas. However, our understanding of the stratigraphic development and sedimentary evolution of different alluvial fan types remains limited. This study examines...

Durable superhydrophobic materials: Advanced fabrication, applications, and industrial challenges

Superhydrophobic materials feature exceptional water repellency, anti-fouling, self-cleaning and corrosion resistance, serving as promising candidates across defense, industrial and civilian scenarios. Superhydrophobic materials with static water contact angles above 150° have be...

A co-optimization qubit mapping algorithm via two-stage search and bidirectional look

Abstract Current quantum devices typically lack full qubit connectivity, making it difficult to directly execute logical circuits on quantum devices. This limitation necessitates quantum circuit mapping algorithms to insert SWAP gates, dynamically remapping logical qubits to phys...

Managing hydraulic fracturing-induced seismicity in the Duvernay shale: Triggering mechanisms, influencing factors, and practice-oriented mitigation strategies

Abstract This review provides a Duvernay-focused synthesis of hydraulic fracturing (HF)-induced seismicity, integrating geological datasets, case studies of significant events, coupled poroelastic simulations, and machine-learning-based factor ranking. While the three underlying...

Silica Nanoparticle-Reinforced Wormlike Micellar Gels for High-Temperature Flow Redistribution in Heterogeneous Porous Media

Maintaining the rheological performance of wormlike micellar fluids at elevated temperatures remains challenging. Conventional viscoelastic surfactant (VES) systems may undergo thermally induced micellar scission and loss of gel-like viscoelasticity at elevated temperatures. In t...

A Mathematical Model for Predicting the Viscosity of Oil Emulsions as a Function of Water Cut

The formation of oil–water emulsions following reservoir-water breakthrough is widely observed during oil production. The viscosity of these polydisperse systems may increase sharply with increasing water cut, creating substantial operational difficulties in well-gathering system...

A superelastic titanium alloy showing nearly temperature-independent high strength and elastic modulus

Lightweight superelastic alloys with temperature-insensitive properties are critical for deep-space exploration devices, yet their development is hindered by the challenge of simultaneously balancing strength, recoverable strain, and temperature sensitivity. Here, we overcome the...

Deformation and Failure Mechanisms of Extra-Deep Carbonate Rocks Under In Situ Conditions: An Experimental Study

The exploration of oil and gas resources is shifting toward ultra-deep and extra-deep reservoirs, including in the Tarim Basin, where various types of carbonate rocks are buried. Owing to the extreme burial depths, the mechanical behavior of these rocks under extra-deep condition...

Hydrodynamic and mass transfer behaviors of NH 3 microbubbles in ionic liquids

Abstract Ionic liquids enable efficient ammonia‐containing gas separation, but conventional absorption towers suffer from limited interfacial area and mass transfer efficiency. Microchannels overcome this owing to their large specific surface area. This study investigated the hyd...

Numerical Investigation of Drilling Process for Complex Polar Ice Interlayers: An F-DEM Study

Subglacial drilling through polar ice–rock transitional zones is frequently hindered by severe load fluctuations and instability induced by strong formation heterogeneity. This study investigates the coupled drilling mechanics across pure ice, an ice–rock mixture, and bedrock usi...

Temporal Fusion Transformer for Fracture Evolution Prediction in Hot Dry Rock Hydraulic Fracturing

Hot dry rock (HDR) represents a highly promising sustainable clean energy resource for the future, with the fracture network induced by hydraulic fracturing serving as the cornerstone for thermal energy extraction efficiency. However, conventional numerical simulation tools are c...

Infrastructure‐Constrained Pathways for Large‐Scale CO 2 Mitigation via CCUS in China's Coal‐Fired Power Sector

ABSTRACT Carbon capture, utilization, and storage (CCUS) is essential for decarbonizing coal‐dominated power systems, yet its large‐scale deployment in China is constrained by high costs, uneven storage resources, and limited transport infrastructure. This study develops a plant‐...