A5066160741- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- CO2 Sequestration and Geologic Interactions
- Cyclone Separators and Fluid Dynamics
- Rheology and Fluid Dynamics Studies
- Lattice Boltzmann Simulation Studies
- Rock Mechanics and Modeling
- Dam Engineering and Safety
- Heat and Mass Transfer in Porous Media
- Oil and Gas Production Techniques
- Coal Properties and Utilization
- Reservoir Engineering and Simulation Methods
- NMR spectroscopy and applications
- Seismic Imaging and Inversion Techniques
- Geoscience and Mining Technology
- Groundwater flow and contamination studies
- Drilling and Well Engineering
- Heat transfer and supercritical fluids
China University of Petroleum, Beijing
2023-2024
Currently, research surrounding low-salinity water flooding predominantly focuses on medium- to high-permeability sandstone reservoirs. Nevertheless, further investigation is necessary implement this technique with regard tight The present study comprises a series of experiments conducted the crude oil and core Ordos Chang 6 reservoir investigate influence ionic composition in change wettability rock surface was analyzed by using contact angle experiment. recovery rate displacement reaction...
Based on the tortuous capillary network model, relationship between anisotropic permeability and rock normal strain, namely dynamic model (ADPM), was derived established. The verified using pore-scale flow simulation. uniaxial strain process calculated main factors affecting changes in different directions deformation were analyzed. In of during exploitation layered oil gas reservoirs, effect effective surface porosity all is consistent. With decrease porosity, sensitivity to increases....
Abstract To solve problems such as inadequate proppant carrying capacity, a complex viscosity changing process, and limited environmental friendliness associated with traditional slick water fracturing fluids, variable friction reducer called Jianghan (JHFR) low damage, high drag reduction, strong proppant‐carrying capacity is prepared by inverse emulsion polymerization. The properties of JHFR are investigated viscometer, JHFR‐II high‐temperature high‐pressure reduction rate tester, surface...
Fractures in low and ultra-low permeability reservoirs create a complex network, affecting fluid flow patterns pressure propagation. However, limited research exists on the impact of fracture properties within these networks. To address this, we introduce shadow area penetration ratio concepts derived from studying single reservoirs. Using sophisticated model analyze how various influence reservoir pressure. are classified into five categories based development level. Through orthogonal...
ABSTRACT: The tight sandstone reservoirs present a viable option for geological CO2 storage. stability and safety of the reservoir rock are fundamental long-term However, injection may lead to interactions between H2O, CO2, rock, potentially impacting mineral composition physical properties reservoir. This ultimately leads decrease in mechanical disrupts high-pressure environments. In this study, mechanics experiments, nuclear magnetic resonance (NMR) scanning electron microscopy (SEM)...
The micropore-throat structure is a controlling factor on the capacity of storage and seepage for tight sandstone reservoirs. Therefore, quantitatively analyzing pore-throat crucial realizing oil accumulated in To study micropore-throat, battery experiments such as casting thin sections, scanning electron microscopy, high-pressure mercury injection, petrophysical characteristics reservoirs were conducted ten samples gathered Late Triassic Chang 63 sublayer Southeast Ordos Basin, China. main...
Reservoir sensitivity can lead to the physical or chemical reactions block pore throat. It is helpful for reducing damage on tight sandstone reservoir study and its controlling factors. This paper mainly focuses of Chang 4+5 6 reservoirs Yanchang Formation in Nanniwan Oilfield, Ordos Basin. The characteristics were evaluated through core experiment after petrological petrophysical analysis structure study. influencing factors discussed from several aspects, such as clay mineral composition,...
Tight sandstone reservoirs have huge potential for geological storage of CO2. In the process CO2 injection, stability and safety reservoir pore structure physical properties are basis storage. However, due to interaction between CO2-water-rocks, mineral composition can be affected, leading changes in rocks destabilizing under high-pressure environments. The distribution, rock surface microstructure, mechanical cores with different compositions treated carbonated water confining pressures...
ABSTRACT: Hydraulic fracturing is an essential stimulation technique for the effective exploitation of tight oil and gas reservoirs. The performance closely related to degree reservoir remodeling. However, mechanical mechanisms fracture propagation permeability enhancement under different differential stresses natural configurations remain elusive. To elucidate physical processes basic hydraulic sandstones stress differentials, we conducted simulation experiments on representative sandstone...
Accurate prediction of fracture volume and morphology in horizontal wells is essential for optimizing reservoir development. Traditional methods struggle to capture the intricate relationships between fracturing effects, geological variables, operational factors, leading reduced accuracy. To address these limitations, this paper introduces a multi-task model designed forecast outcomes. The based on comprehensive dataset derived from simulations within Long 4 + 5 6 reservoirs, incorporating...
Tight reservoirs, with their nanoscale pore structures and limited permeability, present significant challenges for oil recovery. Composite fracturing fluids that combine both recovery capabilities show great potential to address these challenges. This study investigates the performance of a slickwater-based fluid, combined high-efficiency biological displacement agent (HE-BIO), which offers production enhancement environmental compatibility. Key experiments included tests on single-phase...
Water injection is a primary method for developing sandstone reservoirs, and its efficacy depends on water quality. Field observations reveal that pollutants, such as Suspended solids emulsified oil in injected water, can obstruct reservoir pores. Over time, the permeability of changes due to influence quality, necessitating redefinition permeability. In this study, we conducted indoor experiments using cores with varying permeabilities, establishing sample database encompassing history,...