Northeast Petroleum University

Dual-Mode Responsive Dynamic Afterglow Color in CarbonDots and Carbon Nitride Composite for Advanced Optical Informationand Temperature Sensors

Abstract Responsive dynamic afterglow carbon dot (CD) materials, which can continuously emit light of dynamically varying color after excitation cessation, promise broad applications in advanced information encryption and related fields. However, as most reported CD-based aftergl...

Field-Scale Simulation of CO2 Water-Alternating-Gas Enhanced Oil Recovery in a Mature Waterflooded, Low-Permeability, and Highly Heterogeneous Reservoir

Water flooding in low-permeability, highly heterogeneous reservoirs often causes a rapid increase in water cut and inefficient pressure maintenance because injected water preferentially flows through high-permeability channels. In this study, a field-scale compositional simulatio...

Counterfeit Governance Strategies in E-Commerce Platforms from a Systems Perspective: An Evolutionary Game and System Dynamics Approach

Background: Counterfeit governance in e-commerce platforms is a real-world problem characterized by strategic interdependence, information asymmetry and dynamic feedback among platforms, merchants and consumers. Linear or single-actor regulatory approaches are often insufficient...

Research on Calculation Methods for Flow Distribution and Pressure Loss of Reaming-While-Drilling (RWD) Tools

As global oil and gas exploration advances into deep reservoirs, reaming-while-drilling (RWD) tools (hereinafter referred to as the reamer) are widely used to enlarge wellbores for unconventional well structures, prevent stuck pipe caused by formation shrinkage, and improve cemen...

Three-Dimensional Identification of In Situ and Migrated Organic Matter in Shale Based on Micro-CT

Accurate differentiation of in situ organic matter (IOM) from migrated organic matter (MOM) and their three-dimensional characterization are fundamental for understanding hydrocarbon generation, migration, and accumulation in shale reservoirs. However, conventional micro-computed...