A5101869193- Enhanced Oil Recovery Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Drilling and Well Engineering
- Petroleum Processing and Analysis
- Groundwater flow and contamination studies
- Reservoir Engineering and Simulation Methods
- Phosphorus and nutrient management
- Layered Double Hydroxides Synthesis and Applications
- Food composition and properties
- Rock Mechanics and Modeling
- Magnetic and Electromagnetic Effects
- Adsorption and biosorption for pollutant removal
- Agricultural Engineering and Mechanization
- Fluid Dynamics and Mixing
- Electrostatics and Colloid Interactions
- Advanced Cellulose Research Studies
- Geological formations and processes
- Hydrogels: synthesis, properties, applications
- Oil and Gas Production Techniques
- Seismic Imaging and Inversion Techniques
- Atmospheric and Environmental Gas Dynamics
- Geophysical and Geoelectrical Methods
- Natural Fiber Reinforced Composites
- Advanced Computing and Algorithms
Northeast Petroleum University
2014-2025
Xi'an Shiyou University
2021-2022
Ministry of Agriculture and Rural Affairs
2020
Agro-Environmental Protection Institute
2020
China University of Mining and Technology
2017
Jinggangshan University
2011
Huangshan University
2011
Summary In this paper, the reservoir characteristics and fluid properties of a Bohai Sea oil field were taken as research platform. It was confirmed that there exists compatibility between hydrophobically-associating-polymer (HAP) molecular aggregation pore-throat size. The experiment for displacement in heterogeneous cores indicated applicability HAP can be influenced by polymer concentration. parallel demonstrated effect concentration on heterogeneity from two aspects dynamic behavior...
Taking reservoir rocks and fluids of the Daqing, Dagang Changqing oilfields as research objects, EOR mechanisms technical approach polymer flooding were discussed. By comparing displacement performances ordinary polymer, glycerol, in “sheet-net” structure heterogeneous weak gel at same viscosity concentration, relationship between agents performance was demonstrated, method improving effect worked out. The main mechanism to increase oil recovery is swept volume expansion water injection due...
Summary The objective of this work was to explore the dynamic imbibition effect a surfactant solution in microcracks reservoir at high temperature (83.3°C) and low permeability (2 × 10−3 µm2), as well relative influencing factors. This study considered Fuyu Reservoir Toutai Oil Field Daqing, China, which has high-temperature low-permeability characteristics, research platform. First, optimal type concentration were selected by evaluating recovery through adhesion-work-reduction factor ratio...
The quantitative characterization of adsorbed gas and free in shale reservoirs is a key issue exploration development gas. Thus, the aforementioned topic great significance to evaluation reserves, screening favorable target areas, formulation plans. However, research on our current understanding quantities deep still lacking. To address this problem, shales from Longmaxi Formation southern China were collected conduct high-pressure isothermal adsorption experiments. model was used describe...
Summary Bohai offshore oil fields have reached the stages of high and ultrahigh water content, resulting in a significant amount remaining within reservoirs after long-term waterflooding. For typical characterized by wide well spacing sparse networks, river facies composite sand bodies pose challenge. It remains unclear how configuration these affects spatial sweep characteristics injection agents, as formation distribution residual oil. This study employs seismic-guided method, integrating...
Water invasion in unconsolidated sandstone gas reservoirs affects sand and production. With changes displacement pressure difference, production permeability variation characteristics different sandstones also change, primarily influenced by three factors: clay mineral content, cementation strength, pore throat size. The classification of is determined analyzing during water flooding, identifying types: type I—permeability increases after production, II—permeability decreases...
Abstract Preparing biochar from tobacco stalks modified with Mg is a feasible way to utilize as resource. However, the capacity of phosphate removal Mg-biochar affected greatly increasing pH. In present work, produced was via addition and eggshells during preparation for improving adsorption performance at higher The results revealed that theoretical maximum increased 110.62 272.37 mg P/g when mass ratio stalk 0.12:1 0.48:1 (M-C). 0.3:1 (M-C2) more than 200 in pH range 3 7 but further...
There have been some studies conducted about the single factor viscoelasticity of polymer solution or wettability effect on micro-flow mechanism flooding. In this paper, flow in dual heterogeneous reservoir considering and gravity was studied. The influences rock particle shape characteristics were studied based saturation pressure distribution. Compared with simulation results flooding three different shapes porous media, oil displacement efficiency circular model is highest at 91.57%,...
Water plugging and profile control are becoming increasingly important in water-flooding oilfields. In this study, the experiments were conducted to determine microscopic mechanisms effects of water plugging, control, 'water + control'. Initially, starch graft copolymer polymer gel used showed only slight changes viscosity. However, within 12 h, viscosities exceeded 100,000 mPa·s, which indicated that two agents had good effects. When agent was copolymer, oil recovery with 2% 0.8% higher...
In this article, we developed a new composite gel for plugging dominant fluid flow channels in offshore oilfields. The was synthesized by organic and inorganic networks interpenetrating into compact three-dimensional spatial network structure, resulting good effect. performance of the evaluated from aspects gelling characteristics microstructure, while effect through core experiments. results showed that influencing order each component on acrylamide > cross-linking agent urea initiator...
In order to explore the influence of water dilution on performance Cr3+ polymer weak gel in porous medium, performances pure solution and were studied according laboratory testing viscosity, micro-structure (polymer molecule aggregate dimension, configuration Zeta potential), seepage characteristics oil displacement effect under condition dilution. The results indicated that, after diluting by water, had an almost same but there obvious differences characteristics. Different with solution,...