Xiaopeng Zhai
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View article: Low-density workover fluid technology designed to lower the required sealing strength for operations in the fractured reservoirs of the Ordos Basin
Low-density workover fluid technology designed to lower the required sealing strength for operations in the fractured reservoirs of the Ordos Basin Open
The tight Upper Paleozoic sandstone reservoirs and Lower Paleozoic carbonate reservoirs in the Ordos Basin necessitate fracturing or acidizing to generate artificial fractures prior to production, classifying them as typical fractured rese…
View article: Mechanism of Co2 Nanobubble-Driven Enhanced Oil Recovery in Tight Shale Oil Reservoirs
Mechanism of Co2 Nanobubble-Driven Enhanced Oil Recovery in Tight Shale Oil Reservoirs Open
View article: Quantitative Characterization Method of Additional Resistance Based on Suspended Particle Migration and Deposition Model
Quantitative Characterization Method of Additional Resistance Based on Suspended Particle Migration and Deposition Model Open
The phenomenon of pore blockage caused by injected suspended particles significantly impacts the efficiency of water injection and production capacity release in offshore oilfields, leading to increased additional resistance during the inj…
View article: Experimental Evaluation of Blockage Resistance and Position Caused by Microparticle Migration in Water Injection Wells
Experimental Evaluation of Blockage Resistance and Position Caused by Microparticle Migration in Water Injection Wells Open
Offshore oil field loose sandstone reservoirs have high permeability. However, during the water injection process, water injection blockage occurs, causing an increase in injection pressure, making it impossible to continue injecting water…
View article: Modified guanidine gel fracturing fluid system and performance optimization for ultra-deep and ultra-high temperature oil and gas reservoirs
Modified guanidine gel fracturing fluid system and performance optimization for ultra-deep and ultra-high temperature oil and gas reservoirs Open
The development of deep high-temperature oil and gas reservoirs gives rise to a rise in reservoir temperature along with the depth of the oil reservoir, thereby imposing higher requirements on the heat resistance of fracturing fluid. Guar …
View article: Skin Factor Test Experiment of the Combined Structure of Blind and Screen Pipes
Skin Factor Test Experiment of the Combined Structure of Blind and Screen Pipes Open
During the drilling process of horizontal wells in offshore oil fields, when encountering highly clayey shale or sandy shale sections, a common practice is to use a combination of blank pipes and screen pipes in the completion column to is…
View article: Development and Characterization of Thermoresponsive Smart Self-Adaptive Chitosan-Based Polymer for Wellbore Plugging
Development and Characterization of Thermoresponsive Smart Self-Adaptive Chitosan-Based Polymer for Wellbore Plugging Open
To meet the escalating demand for oil and gas exploration in microporous reservoirs, it has become increasingly crucial to develop high-performance plugging materials. Through free radical grafting polymerization technology, a carboxymethy…
View article: Erosion Life Prediction of Metal Mesh Screen Pipes in Oil Wells Based on Numerical Simulation of Discrete Particle Flow
Erosion Life Prediction of Metal Mesh Screen Pipes in Oil Wells Based on Numerical Simulation of Discrete Particle Flow Open
High-speed fluid-carried sand particles pose a significant challenge to oil well screen pipes, leading to sand control failure and adversely affecting the well's production and recovery rates. This research targets the commonly used metal …
View article: Fuzzy-Ball Fluids Enhance the Production of Oil and Gas Wells: A Historical Review
Fuzzy-Ball Fluids Enhance the Production of Oil and Gas Wells: A Historical Review Open
Advancements in drilling technology are pivotal to optimizing the production and sustainability of oil and gas wells. One of the emerging innovations is the application of a specialized fluid known as “Fuzzy-ball” fluid. This paper compreh…
View article: Development and Characterization of CO<sub>2</sub>–Responsive Intelligent Polymer Sealant
Development and Characterization of CO<sub>2</sub>–Responsive Intelligent Polymer Sealant Open
In this study, we present an innovative intelligent polymer sealant designed to mitigate CO2 leakage during underground geological storage (CCUS). This sealant is formulated by cross-linking CO2-responsive polymers, s…
View article: Prediction of Leakage Pressure in Fractured Carbonate Reservoirs Based on PSO-LSTM Neural Network
Prediction of Leakage Pressure in Fractured Carbonate Reservoirs Based on PSO-LSTM Neural Network Open
Shunbei Oilfield is a fractured carbonate reservoir with complex geological structures that are influenced by fault movements and prone to collapse and leak incidents. Precisely predicting leakage pressure is crucial for conducting fractur…
View article: Synergy of two lower hybrid waves with different frequencies on EAST
Synergy of two lower hybrid waves with different frequencies on EAST Open
Lower hybrid current drive (LHCD) is one of the major approaches maintaining long pulse discharges on EAST. There are two lower hybrid (LH) systems on EAST launching waves at 4.6 GHz and 2.45 GHz into the plasma, respectively, and the inpu…
View article: Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs
Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs Open
The plugging of nanopores in low-permeability coal reservoirs is an important factor that affects productivity reduction. However, the mechanism of plugging of the nanopores in coal reservoirs remains unclear. In this study, the coal sampl…
View article: Investor Sentiment and IPOs Anomalies: An Agent-Based Computational Finance
Investor Sentiment and IPOs Anomalies: An Agent-Based Computational Finance Open
It is worthwhile to investigate abnormal performance of IPOs by incorporating investor sentiment. Using the method of Agent-based Computational Finance (ACF), we analyze the effect from different kinds of investor sentiment on IPOs first-d…
View article: Performance of a modified particle swarm optimization in determining the thickness of the liquid layer outside a well casing pipe
Performance of a modified particle swarm optimization in determining the thickness of the liquid layer outside a well casing pipe Open
The liquid layer outside a well casing develops from flaws along the cement–casing interface, which have been identified as leakage pathways in wellbores. The thickness of the liquid layer is one of the important parameters for determining…