A5100418396- Reservoir Engineering and Simulation Methods
- Oil and Gas Production Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Geophysics and Sensor Technology
- Coal Properties and Utilization
- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- Photonic and Optical Devices
- Geoscience and Mining Technology
- Underwater Vehicles and Communication Systems
- Advanced Fiber Optic Sensors
- Mechanical and Optical Resonators
- Underwater Acoustics Research
- Geomechanics and Mining Engineering
- Energy Harvesting in Wireless Networks
- Inertial Sensor and Navigation
- Automated Road and Building Extraction
- Wave and Wind Energy Systems
- Coastal and Marine Dynamics
- Advanced MEMS and NEMS Technologies
- Traffic and Road Safety
- Fluid Dynamics and Vibration Analysis
- Environmental Changes in China
- Full-Duplex Wireless Communications
Fuzhou University
2021-2024
Xinjiang University
2024
China National Petroleum Corporation (China)
2016-2023
Xi'an Technological University
2023
ConocoPhillips (United States)
2023
Tsinghua University
2010-2022
Aalborg University
2022
China Coal Research Institute (China)
2018
China Coal Technology and Engineering Group Corp (China)
2018
Stanford University
2016
Applications such as autonomous driving or real-time route recommendations require up-to-date and accurate digital maps. However, manually creating updating maps is too costly to meet the rising demands. As large collections of GPS trajectories become widely available, constructing using trajectory can greatly reduce cost Unfortunately, due noise varying sampling rates, inferring from be very challenging. In this paper, we present a framework create with rich knowledge collections. Starting...
The adsorption of the CO2/CH4 mixture in coal affects CO2-enhanced coalbed methane recovery project. To gain a better understanding CH4 and CO2 interaction with middle-rank coal, we developed molecular concept support for sorption on Ximing-8 (XM-8) (1.8% vitrinite reflectance). A XM-8 model was built by using dynamic (MD) simulations. simulations were established Grand Canonical Monte Carlo MD methods to study effects temperature, pressure, species bulk mole fraction pure component...
Abstract Extended footage capabilities and high rate of penetration give PDC bits a distinct advantage over rollercone in many applications. However, the fixed element creates an inherent limitation because only small portion cutter contacts formation, as cutters wear/chip drilling efficiency declines. The industry requires new technology that can effectively utilize entire 360° diamond cutting edge to reduce frictional heat/wear while increasing bit life. A plan was initiated rotate...
This paper summarizes and classifies the theory technology of various tilt sensors, introduces solid pendulum liquid gas micro-electro-mechanical system (MEMS) compounding including several kinds sensors developed by research group, such as dual-axis micro-machined restraining acceleration interference so on; analyzes theory, fundamental, configuration advantages disadvantages all sensors; points out development directions trends according to a great deal materials analyzing research.
Brillouin scattering spectra of three silicone oils with different viscosity, including two polydimethylsiloxanes (PDMS) and one polyphenylmethylsiloxane (PPMS), have been studied under high pressure.
Abstract Models for gravity segregation in gas improved oil recovery (IOR) indicate that the distance injected and water travel together before complete scales with injection rate Q. Therefore, cases where pressure is limiting, reducing skin resulting from damage at wellbore face directly increases volumetric sweep of IOR. Even absence face, most dissipated near well, but occurs much further well. if limited, increasing mobility well has a large impact on Q, direct benefit delaying...
The scheme based on the inertial measurement of while drilling (MWD) is developing direction MWD, but gyroscope bottleneck which arbitrarily restricts application scheme. This paper discusses Inertial Measurement Unit (IMU) consisting three fiber optic and accelerometers, as well algorithm IMU. In structural design this system, IMU rotating framework utilized to modulate output signal FOG, will reduce constant drift gyroscopes improve accuracy attitude angle trajectory. What's more,...
Abstract A single-mode single-polarization waveguide (SMSPW) ring resonator for the microoptic gyro (MOG) was proposed, and it could be monolithically integrated onto a silica planar lightwave circuit. We have presented design of three-dimensional SMSPW in which TM mode cuts off TE transmits by taking into consideration stress-induced birefringence effect Si-based using effective-index method. The characteristics light propagation across were studied finite difference beam Numerical...
Abstract Liaohe Oilfield is well-known for wide distribution of heavy oil resoures whose viscosity around 6.2×104mPa·s (degassed crude at 45°C). Heavy resources are usually found the depth 500-1700m. An integrated research has been completed to study most efficient utilization steam huff and puff methodology. In order compare new injection method with conventional EOR method, we selected 7 wells in which was simulated by software. The high temperature gel particle plugging agents, frothers...
Proper estimation of driver perceived risk is the key to designing human-like planning and control algorithms for autonomous vehicles generate behaviors gain people's trust. By introducing human situation awareness theory, this paper proposes a concise, effective, general-scenarios applicable model, termed Potential Damage Risk (PODAR), estimate during driving. PODAR consists two components: potential damage attenuation functions, corresponding "uncertainty" "adverse consequences" in...
Wave energy converters are still a maturing technology and, as such, face series of challenges before they can compete with already-established technologies. One these is optimising the amount extracted from waves and delivered to power grid. This study investigates possibility increasing output existing hydraulic take-off system wave converter made by Floating Power Plant during small-scale testing their hybrid wind platform. consists floater arm that rotates an axle when displaced waves....
Acoustic particle velocity channels can be used for communication in underwater systems [A. Abdi and H. Guo, IEEE Trans. Wireless Communi. 8, 3326-3329, (2009)]. In this paper, the information (Shannon) capacity of acoustic is studied using measured data. More specifically, maximum achievable data rates a compact vector sensor receiver another with spatially separated scalar sensors are compared. Some statistics such as amplitude distribution power delay profile investigated proper models...
Abstract Chemical warfare agents represent a severe threat to mankind and their efficient decontamination is global necessity. However, traditional disposal strategies have limitations, including high energy consumption, use of aggressive reagents generation toxic byproducts. Here, inspired by the compartmentalized architecture detoxification mechanism bacterial micro-compartments, we constructed oil-in-water Pickering emulsion droplets stabilized hydrogen-bonded organic framework...
Traffic flow prediction is a spatiotemporal task. The biggest difference between traffic and ordinary time series problems that it restricted by the topology of road network. Therefore, necessary to accurately mine spatial information in This paper introduces block designed obtain correlation, incorporating both Graph Convolutional Networks (GCN) novel transformer module for handling properties. By leveraging transformers, model can extract dynamic correlations among individual nodes. static...
Abstract The wireless magnetic induction MIMO system can enhance the data transmission rate in near-field communication, but it also suffers from severe inter-channel interference issues. This paper introduces precoding techniques into system, employing zero-forcing algorithm to eliminate between different channels. Firstly, leveraging characteristic that channel state of transmit-receive coils is determined solely by physical parameters coils, estimation performed obtain gain matrix for...
Resonator optic gyroscope (ROG) based on Sagnac effect has been investigated over the past years and developed as an attractive device for many applications. micro-optic (R-MOG) with only several-cm-long ring a wafer is promising candidate new generation inertial rotation sensor. Using micro machining process, R-MOG was manufactured silicon or LiNbO3 by etching passive optical resonator devices. It great advantages realizing minitype. kind of detecting resonance frequency difference...
A kind of direct-coupled large-diameter silica on silicon waveguide ring resonator used in microoptic gyro with 4 cm diameter was presented. An optical and electromechanical test platform designed to investigate the performance resonator. The resonance curve, demodulation curve three relative important parameters were obtained. free spectral range resonator, full width at half maximum finesse are 3 GHz, 73 MHz 41, respectively. Open-loop experiments set up using acousto-optic frequency...
Oilfield development plan is an important issue to energy exploitation. In addition the deterministic and stochastic models brought forward in past studies, this paper proposes a multi-objective programming model for oilfield plan, which parameters are fuzzy variables. order solve model, we use AHP weigh objective functions design hybrid intelligent algorithm integrating simulation genetic algorithm. A numerical example given illustrate validity effectiveness of its