A5065726455- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Coal Properties and Utilization
- Geological Studies and Exploration
- Geology and Paleoclimatology Research
- Geoscience and Mining Technology
- Geochemistry and Geologic Mapping
- Isotope Analysis in Ecology
- Geochemistry and Geochronology of Asian Mineral Deposits
- Coal and Its By-products
- Subcritical and Supercritical Water Processes
- CO2 Sequestration and Geologic Interactions
- Aerodynamics and Fluid Dynamics Research
- Neuroinflammation and Neurodegeneration Mechanisms
- Refrigeration and Air Conditioning Technologies
- Geomechanics and Mining Engineering
- Ferroptosis and cancer prognosis
- Hydraulic Fracturing and Reservoir Analysis
- Enhanced Oil Recovery Techniques
- Hydraulic and Pneumatic Systems
- Mercury impact and mitigation studies
- Epigenetics and DNA Methylation
- Geological and Geophysical Studies
- NMR spectroscopy and applications
Ningxia Medical University
2025
China University of Petroleum, East China
2017-2024
Qingdao National Laboratory for Marine Science and Technology
2018-2024
Research Institute of Petroleum Exploration and Development
2015-2017
A comprehensive analysis was carried out on the geochemical characteristics of 15 shale gas samples from Changning area to study carbon isotopic composition features and reversal cause in post-mature Silurian Longmaxi Formation area, Sichuan Basin. Through alkane component composition, combining with research Fuling Weiyuan areas Basin, methane accounts for 97.11% 99.45%, average wetness is 0.49% representing typical dry gas, abnormal δ13C1 value as −28.2‰ δ13C2 values −33.2‰, view...
The carbon isotopic series of alkane gases were divided into three types: (1) positive series: δ13C values increased with increasing numbers among the C1–C4 alkanes, which is a typical characteristic for primary gases; (2) negative decreased alkanes; and (3) partial reversal, had no or decreasing relationship between numbers. Negative further secondary origins. abiogenic gases, while result alteration imposed on biogenic usually observed in over-mature shale gas coal-derived gas. Previous...
Among the world's 10 major gas producing countries, only United States (USA), Russia and Iran have annual production of 250 × 109 m3 or more. China is expected to output in 2025. There are three advantages for great development natural industry China. Firstly, resources rich proved rate low 8.6%, so it has resource advantage faster development; Secondly, over past 35 years, continues grow, with growth Finally, since 2006, remaining recoverable reserves been increasing year by year, showing...
Based on the geochemical characteristics of Lower Paleozoic gases from 154 most recently drilled wells and their genetic type, in combination with organic abundance evaluation 733 core samples Paleozoic, origin Ordos Basin was discussed. According to carbon isotope data paraffin gas geological background, are divided into three types four sub-types: (1) coal-derived generated Upper coaly source rock; (2) oil-associated sourced rock, (3) mixing originated rock limestone, can be two sub-types,...
Light hydrocarbons (LHs) are an important component of natural gas whose chemical and isotopic compositions play a vital role in identifying genetic type, thermal maturity, gas–gas correlation, gas–source migration direction phase, secondary alterations (such as evaporative fractionation, biodegradation, thermochemical sulfate reduction) experienced by the pool. Through review geochemical research into LHs over recent decades, analysis gases condensates from more than 40 fields China, we...
Compared with the globe valves and other on-off valves, cavitation noise are more severe in throttle control valve of refrigerating system due to higher saturated vapor pressure refrigerant. A short tube (STTV) is an important component easily occurs because drop caused by flow throttling. To suppress noise, this paper proposed a numerical investigation verified experimental data into characteristics inside STTV. Three kinds typical structures study. The field STTV under different...
Microglial activation is the initial pathological event that occurs in demyelination, a prevalent feature various neurological diseases. G protein-coupled estrogen receptor (GPER1), which highly expressed microglia, has been reported to reduce myelin damage. However, precise molecular mechanisms involved remain unclear. In this study, cuprizone (CPZ) -induced demyelination model was used investigate relationship between GPER1 and sheath injury its mechanism. The results demonstrated...
Owing to its limited homologous, simple structure, small molecular weight and radius, natural gas could diffuse easily migrate in a long distance, which greatly increases the difficulties of study source rock maturity. So this paper we relationship between wetness Based on 49 coal-derived samples from Ordos, Sichuan, Bohai Bay, Qiongdongnan, Junggar Turpan–Hami basins China with integral series, it is discovered that decreases maturity (Ro) rock. The negative correlation was established....
Based on the geochemical parameters and analytical data, heat conservation equation, mass balance law, Rayleigh fractionation model other methods were used to quantify in-situ yield external flux of crust-derived helium, initial He concentration thermal driving mechanism mantle-derived in Ledong Diapir area, Yinggehai Basin, order understand genetic source, migration accumulation mechanisms helium under deep fluid activities. The average content is only 0.001 4%, 3He/4He value...
The significantly different geological processes experienced by the shales in southern Sichuan Basin provide a means for comparing their pore characteristics and supercritical methane adsorption capacities. In this study, we analyzed Wufeng Formation (O3w)–Longmaxi (S1l) using multiple analytical methods, including mineralogy, field emission scanning electron microscopy (FE-SEM), mercury intrusion capillary pressure (MICP), low-pressure gas (LPGA), high-pressure adsorption. Four types of...
Light hydrocarbon has abundant geochemical information, but there are few studies on it in Shenmu gas field. Taking Upper Paleozoic field as an example, authors use chromatography technology to study light systematically. The results show that (1) is mainly coal-derived gas, which mixed by partial oil-derived due the experiment data. (2) Based K 1 , 2 parameter and Halpern star chart, belongs same petroleum system depositional environment of natural source rocks should be homologous. (3)...
This paper focuses on Longmaxi shale gas geochemistry and carbon isotopic reversal in Changning Fuling fields through comparative study of composition hydrogen isotopes North America fields. exhibits the features dry gas. Specifically, average methane (CH 4 ) content is 98.72 98.17%, respectively. The humidity less than 0.5%. Nonhydrocarbon gases include a small amount CO 2 N . Extremely heavy δ 13 C 1 value, value −33.3 −34.6‰ for Fuling, sapropelic organic matter indicate properties...
The graptolitic shale of the Wufeng–Longmaxi Formations is widely deposited across Ordovician and Silurian transition in South China, which target gas exploration development within China. contribution graptolites to organic enrichment reservoir discussed below based on statistics nearly 1000 samples from Wufeng Formation bottom part Longmaxi southern northern margins Yangtze plate. assessment involves abundance, total carbon (TOC) content analyses, different scales scanning electron...