Zhengxiao Xu

Formation of Oil Bank during SP Flooding and Its Impact on Infill Drilling Timing in Heterogeneous Reservoirs

Lei Tao, Haichi Shang, Wenyang Shi, Jiajia Bai et autres

cn (code pays fourni par la source)

Mechanisms of Mobility Control and Enhanced Oil Recovery of Weak Gels in Heterogeneous Reservoirs

Zhengxiao Xu, Ming Sun, Lei Tao, Jiajia Bai et autres

At present, most oilfields in China have entered the late, high-water-cut stage, commonly facing declining single-well productivity and increasingly pronounced reservoir heterogeneity. Prolonged waterflooding has further exacerbated permeability contrast, yielding complex, hard-to-produce residual-oil distributions. Accordingly, the development of efficient enhanced oil recovery …

cn (code pays fourni par la source)

Enhancing predictions of coal strength variations induced by CO2 exposure through advanced deep learning and machine learning techniques

Mohammad-Reza Mohammadi, Zhaomin Li, Fahimeh Hadavimoghaddam, Zhengxiao Xu et autres

ir, cn, ru, kw, ca (code pays fourni par la source)

Research on Foam Flooding of Fractured Vuggy Reservoirs Based on Experimental Analysis and Simulations

Zhengxiao Xu, Tongtong Zhang, Lei Tao, Meng Li et autres

Abstract Foam flooding is an effective enhanced oil recovery method for deep fractured vuggy carbonate reservoirs, but its application is limited by reservoir heterogeneity and foam stability. We systematically investigated the foam flow behavior and displacement characteristics in fractured vuggy carbonate reservoirs …

cn, us (code pays fourni par la source)

Foam flow evolution in fractured vuggy reservoirs: Comprehensive analysis of experiments and simulations

Zhengxiao Xu, Lei Tao, Wenyang Shi, Jiajia Bai et autres

Foam flooding is essential for enhancing oil recovery in fractured vuggy carbonate reservoirs, combining gas flooding's profile control and water flooding's stability. However, strong reservoir heterogeneity leads to problems such as crossflow and poor foam stability, which restrict its effectiveness. This research …

cn (code pays fourni par la source)

Research on sensitivity analysis methods for production dynamics in heavy oil polymer flooding using proxy model

Lei Tao, Tingting Zhang, Wenyang Shi, Jiajia Bai et autres

In heavy oil polymer flooding development, accurately identifying dominant control parameters and their impacts on production performance is crucial for enhancing development efficiency. To overcome the limitations of conventional numerical simulation methods characterized by time-consuming computations and low efficiency, this study employs …

cn (code pays fourni par la source)

Research on Foam Flow and Flooding Characteristics of Fractured Vuggy Reservoirs

Zhengxiao Xu, Faqiang Dang, Tong Yu, Kang Yang et autres

Abstract Foam flooding is an effective enhanced oil recovery method for deep fractured vuggy carbonate reservoir. This paper systematically investigates the flow behavior and displacement characteristics of foam in fractured vuggy carbonate reservoirs. A multi factor fracture visualization models were constructed through …

cn (code pays fourni par la source)

Foam stabilization mechanism of core-shell particles: Insights from the gas-liquid interface theory

Zhengxiao Xu, Guangzhe Ding, Lei Tao, Wenyang Shi et autres

To improve oil displacement efficiency under deep reservoir conditions, foam flooding technology represents a critical strategy through the establishment of a stable, long-lasting foam system. A central challenge in this application is to characterize the evolution dynamics of foam under extreme reservoir …

cn, ca (code pays fourni par la source)

Investigation of Foam Mobility Control Mechanisms in Parallel Fractures

Xiongwei Liu, Yibo Feng, Bo Wang, Jianhai Wang et autres

Fractured vuggy reservoirs exhibit intricate fracture networks, where large fractures impose significant shielding effects on smaller ones, posing formidable challenges for efficient exploitation. A systematic evaluation of foaming volume, drainage half-life, decay behavior, and viscosity under varying temperatures and salinities was conducted …

cn (code pays fourni par la source)

Visualization study on migration characteristics of high-stability gel foam in fractures of fractured-vuggy reservoirs

Binfei Li, Yong-Jin Song, Jianhai Wang, Mengyuan Zhang et autres

cn, cz (code pays fourni par la source)

Simulation of Flue Gas Flooding and Sensitivity Analysis in Low-Permeability Reservoirs Considering Miscible Effects: Core Experiments and Lattice Boltzmann Simulations

Aiqing Cao, Di Zhu, Zhaomin Li, Zhengxiao Xu et autres

As an important enhanced oil recovery (EOR) method, flue gas flooding enhances reservoir energy, reduces the crude oil viscosity, and improves the flow capability of the crude oil. This technique significantly optimizes crude oil extraction performance, achieving a higher oil recovery factor …

cn (code pays fourni par la source)

The Enhanced Oil Recovery Mechanisms in Heavy Oil Reservoirs by Chemical Compound Flooding after Multiple Cycles of Huff-n-Puff

Jiajia Bai, Tianshuai GU, Lei Tao, Zhangxin Chen et autres

Due to the serious gas channeling, high water cut, and poor thermal recovery efficiency in heavy oil reservoirs after multiple cycles of huff-n-puff, it is a challenging process to recover oil from heavy oil reservoirs after multiple cycles of huff-n-puff. Chemical compound …

id, cn, nz (code pays fourni par la source)