A5100717920- Hydrocarbon exploration and reservoir analysis
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Oil and Gas Production Techniques
- Reservoir Engineering and Simulation Methods
- Geological Studies and Exploration
- Grey System Theory Applications
- Advanced Sensor and Energy Harvesting Materials
- Geological and Geophysical Studies
- Fluid Dynamics and Mixing
- Enhanced Oil Recovery Techniques
- Conducting polymers and applications
- Reliability and Maintenance Optimization
- Geological formations and processes
- Methane Hydrates and Related Phenomena
- Advanced Algorithms and Applications
- Geoscience and Mining Technology
- NMR spectroscopy and applications
- Coal Properties and Utilization
- Non-Invasive Vital Sign Monitoring
- Rock Mechanics and Modeling
- Engineering Diagnostics and Reliability
- Pulsed Power Technology Applications
- Terahertz technology and applications
- Gyrotron and Vacuum Electronics Research
Sinopec (China)
2015-2025
Ocean University of China
2025
Nanchang Hangkong University
2024
Shijiazhuang Tiedao University
2022-2024
Henan Polytechnic University
2023-2024
Daqing Oilfield General Hospital
2022-2024
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2022-2024
Research Institute of Petroleum Exploration and Development
2024
Yangtze University
2009-2023
Xuzhou Medical College
2023
Abstract The cuffless blood pressure (BP) monitoring device has attracted much attention because of its comfortable and real‐time monitoring. Inspired by the physical structure human epidermis, an ultra‐sensitive flexible resistive sensor with a double strain layer crack is prepared screen printing in this study. material mainly blending Poly(3,4‐ethylenedioxythiophene) :poly(styrenesulfonate) (PEDOT:PSS) waterborne polyurethane reduced graphene oxide. exhibits high gauge factor (GF, ≈1682),...
Abstract The staged and layered fracturing technology plays an important role in unconventional tight reservoirs. And the gas well completion integration is core component to realize process, which can of acid later drainage production so as reduce secondary pollution reservoir. packer rubber barrel’s performance directly affects long-term effective sealing reliability itself high temperature pressure environment. In this paper, constitutive model tested from curing kettle simulate...
The oil content of shale reservoirs is a key parameter for reserve evaluation and “sweet spot” selection. However, discrepancies in the contents obtained by different methods have led to considerable disparities selection exploration well locations development strategies oil. This study focuses on low moderately mature sealed coring samples from Dongying Depression Bohai Bay Basin. Three methods—NMR, Dean–Stark, Rock-Eval—were employed measure shale. results indicate that NMR highest,...
Abstract This study investigates the interannual variability of North Pacific Central Mode Water (CMW) under phase relationship El Niño–Southern Oscillation (ENSO) and Decadal (PDO), based on multiple observational data sets. Peaks troughs CMW are primarily observed when ENSO PDO in phase, but only moderate variation out phase. In Niño spring during positive PDO, extreme ventilation takes place central (180°–155°W, 30°–40°N), where no local occurs for other cases. Such induces stronger...
Abstract Radiative thermal management has attracted increasing attention for the advantages of energy saving and carbon emission reduction. Infrared radiation coatings are widely adopted to alleviate low infrared emissivity commonly used metal alloy electrothermal materials. However, traditional faced with issues unsteady waveband emissivity, interfacial adhesion substrates, poor long‐term stability. Herein, a bush‐shaped vertical graphene (BVG) grown on nichrome (Ni–Cr) wire is...
In the process of constructing deep natural gas wells in Sichuan and Chongqing, encounter various technical challenges such as high temperature, pressure, a corrosive environment containing H2S CO2. The corrosion rubber materials these acidic environments can easily lead to seal failure downhole tools. To better investigate resistance environments, we utilized dynamic cyclic experimental device capable simulating service conditions experienced by tools under high-temperature, high-pressure...
This paper proposes a novel particle swarm optimization algorithm: Multi-Swarm and Multi-Best algorithm. The algorithm divides initialized particles into several populations randomly. After calculating certain generations respectively, every population is combined one continues to calculate until the stop condition satisfied. At same time, updates particles' velocities positions by following multi-gbest multi-pbest instead of single gbest pbest. not only generalization basic optimization,...
Availability is a main feature of design and operation all engineering system. Recently, availability evaluation periodical inspection systems with different structures at the center attention due to wide application in engineering. In this paper, an analytical probabilistic model for system proposed by new recursively algorithm, which can achieve limiting average instantaneous under arbitrary lifetime repair-time distributions. Then three examples are presented, respectively fellow...
Based on Vail sequence stratigraphic theory and analysis of seismic logging information, the in Paleogene Liushagang Weizhou formations Weixi'nan Sag is classified, strata framework defined established, characteristics structure are analyzed distribution non-structural traps revealed. One first-order boundary, two second-order boundaries, eight third-order boundaries ten sequences identified Formations. According to boundary structure, can be divided into three types: type T1, T2, T3. And...
Porosity, a key parameter in assessing the physical properties of shale reservoirs and reserves, is great significance to selection evaluation sweet spots. There are many methods at present characterize porosity, most which aimed post-core cleaning shale, such as those involving helium saturated fluid (namely liquid-involved porosimetry). However, due low efficiency core possible effect pore structure during process, it's hard guarantee accuracy porosity measurement. In this regard, we...
Abstract Chinese coal reservoirs are characterized by low pressure and permeability, which need to be enhanced so as increase production. However, conventional methods for permeability enhancement can only the in fractures, but not ultra‐low matrices. Attempts enhance such impermeable structures lead rapid attenuation of gas production, especially late stage extraction. Thermal stimulation injecting high‐temperature steam is a promising method The critical scientific challenges that still...
<title>Abstract</title> Although deep learning has achieved revolutionary progress in may application fields including image processing and fault diagnosis scenarios, the extremely high computation cost with long running time non-interpretability of black box mechanism seriously downgrades its applicability some areas especially real tasks. To overcome these drawbacks, lightweight neural networks quick training less computational cost, which include randomly weighted such as RVFL...
Here we report on a new architecture for potentiometric NO2 sensors that features thin 8YSZ electrolytes sandwiched between two porous (La0.8Sr0.2)0.95MnO3 (LSM95) layers-one thick and the other thin-fabricated by tape casting co-firing techniques. Measurements of their sensing characteristics show reducing porosity supporting LSM95 reference electrodes can increase response voltages. In meanwhile, layers perform better than Pt as electrode since former provide higher voltages linear...
In view of the limited conditions previous inclined multiphase pipe flow experiments (diameter and flow) with no reliable adaptability calculation method which is obtained from this experimental when using are beyond scope experiment (such as a middle to large diameter flow), gas-liquid two-phase was carried out air water medium different angles 0°, 15°, 30°, 45°, 60°, 75° 90° in paper.The analysis variation liquid holdup pressure drop gas quantities inclination obtained.The applicability...
Phenolic compounds are phytochemicals present in vegetables which contribute to human health. Although nitrogen deficiency and sucrose (Suc) linked phenolic production vegetables, the relationship between them regulation of biosynthesis remains unknown. This study investigated potential role Suc regulating lettuce under low-nitrogen (LN) conditions.
摘要:...
Background: The histaminergic neurons in the hypothalamic tuberomammillary nucleus (TMN) have been suggested to play a vital role maintaining rising state. But neuronal types of TMN are debate and GABAergic remains unclear. Methods: In present study, we examined general anesthesia using chemogenetics optogenetics strategies regulate activity neurons. Results: results indicated that either chemogenetic or optogenetic activation mice decreased effect sevoflurane propofol anesthesia. contrast,...
A delayed crosslinked polymer gel was developed for in-depth water control in mature oilfields. The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI investigated, sodium citrate (NaCit) selected as a new retarder to prolong the time. performance NPAM/PEI system can be adjusted by varying NPAM or concentration, quadratic model is statistical analysis, which predicts time system. obtained shows high significance good reliability, suggested F-ratio 175.16 R-square value...
Purpose In practical engineering, there are various sequences. The purpose of this paper is to improve and put forward a new model. Design/methodology/approach Based on the generalized accumulated generating operation, improved GM(1,1) cosine model proposed GAGM(1,1) Findings It found that can satisfy many kinds periodic sequences precision higher than Originality/value shows has important theoretic significance.