A5035720467- Hydraulic Fracturing and Reservoir Analysis
- Seismic Imaging and Inversion Techniques
- Drilling and Well Engineering
- Groundwater flow and contamination studies
- Hydrocarbon exploration and reservoir analysis
- Catalytic Processes in Materials Science
- Radioactive element chemistry and processing
- Laser-induced spectroscopy and plasma
- CO2 Sequestration and Geologic Interactions
- Groundwater and Isotope Geochemistry
- Atmospheric and Environmental Gas Dynamics
- Seismic Waves and Analysis
- Reservoir Engineering and Simulation Methods
- Advanced battery technologies research
- Advanced Materials Characterization Techniques
- Regional Development and Environment
- Geophysical and Geoelectrical Methods
- Water Quality Monitoring and Analysis
- Enhanced Oil Recovery Techniques
- Supercapacitor Materials and Fabrication
- Transition Metal Oxide Nanomaterials
- Mercury impact and mitigation studies
- Agriculture, Soil, Plant Science
- Radioactive contamination and transfer
- Botany and Plant Ecology Studies
Shell (United States)
2018-2025
China Three Gorges University
2025
Ningbo University
2024
Shell (Netherlands)
2018-2023
Pennsylvania State University
1987-2017
Beijing Institute of Geology for Mineral Resources
2009
Peking University
2009
Liaoning University
2006
Research Article| May 01, 2010 Magmatic and metamorphic events during the early Paleozoic Wuyi‑Yunkai orogeny, southeastern South China: New age constraints pressure-temperature conditions Zheng-Xiang Li; Li † 1Institute for Geoscience Research, Department of Applied Geology, Curtin University Technology, GPO Box U1987, Perth, WA 6845, Australia †E-mail: z.li@curtin.edu.au Search other works by this author on: GSW Google Scholar Xian-Hua 2State Key Laboratory Lithospheric Evolution,...
Abstract Why do solute concentrations in streams remain largely constant while discharge varies by orders of magnitude? We used a new hydrological land surface and reactive transport code, RT‐Flux‐PIHM, to understand this long‐standing puzzle. focus on the nonreactive chloride (Cl) magnesium (Mg) Susquehanna Shale Hills Critical Zone Observatory (SSHCZO). Simulation results show that stream comes from runoff (Q s ), soil lateral flow L deeper groundwater G with Q contributing >70%. In...
Abstract Model development in hydrology and geochemistry has been advancing separately with limited integration. We developed a watershed hydrogeochemical code RT‐Flux‐PIHM to understand complex interactions between hydrological processes (PIHM), land‐surface (FLUX—Noah Land Surface Model), multicomponent subsurface reactive transport (RT). The RT module simulates geochemical including aqueous complexation, surface mineral dissolution precipitation, cation exchange. is verified against the...
We aim to understand the scale-dependent evolution of uranium bioreduction during a field experiment at former mill site near Rifle, Colorado. Acetate was injected stimulate Fe-reducing bacteria (FeRB) and immobilize aqueous U(VI) insoluble U(IV). Bicarbonate coinjected in half domain mobilize sorbed U(VI). used reactive transport modeling integrate hydraulic geochemical data quantify rates grid block (0.25 m) experimental scale (tens meters). Although local varied by orders magnitude...
Several Schiff-base ligands readily form complexes with methyltrioxorhenium(VII) (MTO) by undergoing a hydrogen transfer from ligand-bound OH group to ligand N atom. The resulting are stable at room temperature and can be handled stored in air without problems. Due the steric demands of they display distorted trigonal-bipyramidal structures solid state, as shown X-ray crystallography, O(-) moiety binding Lewis acidic Re atom Re-bound methyl being located either cis or trans position Schiff...
Geologic carbon sequestration represents a promising option for mitigation. Injected CO2, however, can potentially leak into water systems, increase acidity, and mobilize metals. This study used column experiments to quantify the effects of environmental controls on cadmium desorption during CO2 leakage in subsurface systems without ambient flow. Results show that fast rates are responsible earlier larger amounts Cd desorption. Long weathering time laden clay leads low Calcite content as 10%...
Time-lapse seismic data play a key role in hydrocarbon field monitoring and infill opportunity development. In several deepwater hydrocarbon-producing reservoirs, time-lapse softening changes have been observed at the oil-water contact. Here, we refer to this as contact softening. Contact occurs when acoustically softer hydrocarbons above invade replace stiffer brine pore space below This typically pressure depletion from production elsewhere is transmitted through shared aquifer, causing...
Abstract Fipronil is a chiral phenylpyrazole insecticide that effective for control of wide range agricultural and domestic pests at low application rates. Wide fipronil also causes poisoning some nontarget insects, such as honeybees. In the present study, toxicities enantiomers racemate to honeybee Apis mellifera L. were determined examine whether using formulations single or enriched enantiomer possible option reduce risks bees. Contact toxicity tests yielded median lethal doses (LD50)...
Surface chemistry and bulk structure jointly play crucial roles in achieving high-performance supercapacitors. Here, the synergistic effect of surface properties (vacancy phosphorization) structure-derived (hollow hydrangea-like structure) on energy storage is explored by treatment architecture design nanostructures. The theoretical calculations experiments prove that modulation capable improving electronic conductivity electrolyte wettability. structural engineering both hollow nanosheets...
Abstract Preparing fracturing fluids from low-quality water such as hard is an environmentally friendly option in field operations and therefore highly desirable. However, fluid viscosity can be significantly reduced when mixed rather than fresh water, requiring the addition of stabilizers to mitigate hardness damages. Although some have already been identified experiments, systematic studies help optimize based on chemical compositions produced properties polymer are still needed. In this...
ABSTRACT The measured geophysical response of sand – shale sequences is an average over multiple layers when the tool resolution (seismic or well log) coarser than scale mixing. Shale can be found within as laminations, dispersed in pores, load bearing clasts. We present a rock physics framework to model seismic/sonic properties sub‐resolution interbedded shaly sands using so‐called solid and mineral substitution models. This modelling approach stays consistent with conceptual Thomas–Stieber...
In situ carbon-coated CoS 2 micro/nano-spheres were successfully prepared by sulfuric calcination using the solvothermal method with glycerol as carbon source without introducing extraneous carbon.
Spectral decomposition is a proven tool in seismic interpretation. It helps interpreters highlight channels and map temporal bed thickness other geologic discontinuities. In spectrally decomposed data, amplitude spectra contain notch patterns. The period of these patterns inversely correlates to the reservoir layer’s and/or its interval velocity. Additional cepstral will directly extract time or arrival under simple reflectivity setups. Based on observations, we have adopted new workflow for...
Abstract The ongoing low oil price environment has profound impact on all the operators and service providers. Efficiency improvements cost reductions are two key strategies to capture opportunities in current situation. It is now imperative for engineers improve engineering practices gain efficiency drive down cost. However, well stimulation practices, it vital stakeholders obtain fracturing fluids with desirable fluid viscosity, thermal chemical properties as reasonably possible. Preparing...