Shenhua Group (China)

Competitive Behavior of Polar and Nonpolar Shale Oil During CO2-Induced Mobilization in Water-Bearing Nanopores

Abstract The efficiency of CO2-enhanced oil recovery (EOR) in shale reservoirs is critically influenced by formation water and the complex chemistry of the crude oil. However, the roles of components in shale oil and its underlying mechanisms are lacking. In this work, molecular...

Prediction method for the formation drillability based on improved Bi-LSTM

Rock drillability serves as a comprehensive parameter reflecting the difficulty of rock fragmentation during drilling. To address the challenges, this study introduces a Bi-LSTM and Stacked Autoencoder (SAE) hybrid model for predicting the drillability of deep undrilled formation...

Oxygen-vacancy-rich AgBiO3/Bi5O7I heterojunction for antibiotic photodegradation

Semiconductor photocatalysis antibiotic degradation technology has garnered significant advantages such as efficient energy consumption, environmental remediation and high security. To date, advanced strategies for constructing materials with oxygen vacancies and heterogeneous in...

Study on Roof‐Control Technology for Gob‐Side Entry Retaining Under Composite Roofs

ABSTRACT This paper addresses the challenge of roof control during gob‐side entry retaining under a composite roof. Taking the 15210 working face of Hecaogou No. 1 Mine as the engineering background, borehole‐camera exploration, numerical simulation, and field measurements are in...

Calculation of water storage space and changes in underground coal mine reservoirs

In view of the limited limited water storage space and unstable structure in traditional caving mining, and the invisibility of goaf leads to the difficulty of accurate calculation of water storage space, this paper proposes a comprehensive technical method for the digitization o...

Analysis of mid-infrared spectral characteristics and recognition models of coal with different particle sizes

As a core energy source, the accurate identification of coal particle size is a critical part in the quality control of raw coal mining, separation and processing, storage and transportation, and quality upgrading. The differences in physical and chemical properties of coal with...