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Zhao Yuwu,Qu Yingxin, Xiong Wenping
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 34-39
Microseismic monitoring is capable of determining locations of waterflooddirection, waterflood wave, water spread area and etc., and then interpolates fracture patterns, based on microseismicAfter brief description of principles of passive microseismic monitoring, this paper analyzes resultsof application of microseismic monitoring on waterflood front at Daqing Oilfield western periphery,Field application asserts that microseismic monitoring has good prospects in fracturing studies of low
Keywords: passive microseismic fracture waterflood front waterflooding extraction
Discussions and practice of pressurized water injection for ultra low permeability oilfield
Zhang Hongliang
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 62-64
Keywords: pressurized waterflood passive microseismic ultra low permeable oilfield affected coefficient effective
Microseismic monitoring of Well J-253 in complicated construction
Zhao Xinhong,Che Hang,Luo Jiong
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 12-15
Well J-253 is located in the J-11 fault block of North China oil field. The direction and geometry size of hydraulic fracture are affected by the stress, geological structure and faults, as well as hydraulic sand blasting. The direction of the initial artifical fracture is at NNE, deviating from the direction of the maximum herizontal principal stress. Then it turns to the direction of the maximum horizontal principal stress and normal direction of contour. Moreover, there are significant fissures lined around the well. It has typical significance to study the artifical fracture direction and geometry of Well J-253.
Keywords: microseismic monitoring hydraulic sand blasting fault
Application of microseismic monitoring technology in Daqing Oilfield A block well net design
Ma Jisheng
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 74-76
Keywords: microseismic monitoring artificial fracture well pattern design
Microseismic monitoring technology development direction and application
Liu Jianzhong,Tang Chunhua,Zuo Jianjun
Strategic Study of CAE 2013, Volume 15, Issue 10, Pages 54-58
This paper discussed the development direction of microseismic monitoringtechnology, pointed out that improve the quality of microseismic monitoring system, reduce the frontmicroseismic monitoring, and increase the number of microseismic monitoring stations so as to obtainmonitoring, and form complete theory of microseismic.Above are important directions of microseismic monitoring technology development.
Keywords: microseismic monitoring seismic prospecting fracturing monitoring water monitoring
Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1494-3
• A Passive Aeration Ditch was developed to treat decentralized wastewater
Keywords: Decentralized wastewater Passive aeration ditch Biofilm formation C/N ratio Salinity Model simulation
Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1731-z
● A 2D finite-element solute transport model, PRB-Trans, is developed.
Keywords: Passive convergence-permeable reactive barrier Numerical modeling Hydraulic behavior assessment Pollutant
Microseismic monitoring technology
Tang Chunhua,Gu Guangqing
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 95-99
Microseismic (MS) monitoring is a hot topic in the applied geophysics
Keywords: microseismic monitoring hydraulic fracturing oil and natural gas SNR (signal to noise ratio) event
Min-Ho CHEY, Jae-Ung KIM
Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 267-280 doi: 10.1007/s11709-012-0170-x
Keywords: tuned mass damper parametric optimization passive control white noise earthquake excitation
Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD
Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 377-388 doi: 10.1007/s11465-017-0431-4
Power maximization has always been a practical consideration in wind turbines. The question of how to address optimal power capture, especially when the system dynamics are nonlinear and the actuators are subject to unknown faults, is significant. This paper studies the control methodology for variable-speed variable-pitch wind turbines including the effects of uncertain nonlinear dynamics, system fault uncertainties, and unknown external disturbances. The nonlinear model of the wind turbine is presented, and the problem of maximizing extracted energy is formulated by designing the optimal desired states. With the known system, a model-based nonlinear controller is designed; then, to handle uncertainties, the unknown nonlinearities of the wind turbine are estimated by utilizing radial basis function neural networks. The adaptive neural fault tolerant control is designed passively to be robust on model uncertainties, disturbances including wind speed and model noises, and completely unknown actuator faults including generator torque and pitch actuator torque. The Lyapunov direct method is employed to prove that the closed-loop system is uniformly bounded. Simulation studies are performed to verify the effectiveness of the proposed method.
Keywords: wind turbine nonlinear model maximum power tracking passive fault tolerant control adaptive neural control
Wang Guoshun,Liu Jianzhong,Liu Linwang
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 40-44
This paper describes arrival time of microseismic signals, which wereIt shows that fracture orientation, waterflood front geometry, and microseismic mechanism nodal planeThis study depicts a selfcheck approach to verify dependability of microseismic mapping itself, and
Keywords: microseismic fracture waterflood performance waterflood front
Recent developments in passive interconnected vehicle suspension
Wade A. SMITH, Nong ZHANG,
Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 1-18 doi: 10.1007/s11465-009-0092-z
Keywords: interconnected suspensions rollover prevention vehicle dynamics ride comfort multibody system dynamics hydraulic system dynamics
Microseismic fracturing mapping and fracturing of open-hole long horizontal Well Su 75-70-6H
Wang Wanxun,Ye Lianchi,Wang Lizhi,Duan Zhengzhong
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 4-7
Keywords: fracturing microseismic monitoring fracture
Microseismic monitoring application for waterflooding in No.6 oil reservior of Yanchang Oilfield
Hao Shiyan,Wang Yongdong
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 8-11
Keywords: Yanchang Oilfield water-flooding extraction microseismic monitoring water-flood front
Research Developments and Prospects on Microseismic Source Location in Mines Review
Jiulong Cheng,Guangdong Song,Xiaoyun Sun,Laifu Wen,Fei Li
Engineering 2018, Volume 4, Issue 5, Pages 653-660 doi: 10.1016/j.eng.2018.08.004
Microseismic source location is the essential factor in microseismic monitoring technology, and itsHere, we discuss the problem of low-precision location identification for microseismic events in a mineof the mine's microseismic wavefield.the combination of the Geiger method with the linear method, combined microseismic event location methodOptimization of the velocity structure, along with applications of the time-reversal imaging technique, passive
Keywords: Microseismic source location Influencing factors Time-reversal imaging Research progress Prospects for
Title Author Date Type Operation
Application of microseismic mapping in the study of low permeable oilfield fracturing——taking the low
Zhao Yuwu,Qu Yingxin, Xiong Wenping
Journal Article
Discussions and practice of pressurized water injection for ultra low permeability oilfield
Zhang Hongliang
Journal Article
Microseismic monitoring of Well J-253 in complicated construction
Zhao Xinhong,Che Hang,Luo Jiong
Journal Article
Application of microseismic monitoring technology in Daqing Oilfield A block well net design
Ma Jisheng
Journal Article
Microseismic monitoring technology development direction and application
Liu Jianzhong,Tang Chunhua,Zuo Jianjun
Journal Article
Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD
Journal Article
Numerical modeling and performance evaluation of passive convergence-permeable reactive barrier (PC-PRB
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Parametric control of structural responses using an optimal passive tuned mass damper under stationary
Min-Ho CHEY, Jae-Ung KIM
Journal Article
Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault
Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD
Journal Article
Analysis of using microseismic monitoring to verify fracturing and waterflood on reservoir Chang 8 of
Wang Guoshun,Liu Jianzhong,Liu Linwang
Journal Article
Recent developments in passive interconnected vehicle suspension
Wade A. SMITH, Nong ZHANG,
Journal Article
Microseismic fracturing mapping and fracturing of open-hole long horizontal Well Su 75-70-6H
Wang Wanxun,Ye Lianchi,Wang Lizhi,Duan Zhengzhong
Journal Article
Microseismic monitoring application for waterflooding in No.6 oil reservior of Yanchang Oilfield
Hao Shiyan,Wang Yongdong
Journal Article