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Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 937-947 doi: 10.1007/s11709-021-0754-4

Abstract: First, an analytical solution for fracturing pressure in two different concentric regions of soil wasThen, several triaxial hydraulic fracturing tests were carried out to validate the analytical solutionFirst, there is a linear relationship between the fracturing pressure and confining pressure in concentricthe internal-layer soil is softer than the external-layer soil, the presence of internal soil on the fracturingMoreover, the influence of strength distinction between the two layers on the fracturing pressure is

Keywords： hydraulic fracturing pressure     layered     cavity expansion theory     triaxial fracturing test     cohesive soil    

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Experimental study on slurry-induced fracturing during shield tunneling

Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 333-345 doi: 10.1007/s11709-021-0718-8

Abstract: Hydraulic fracturing may occur and cause a significant decrease in the support pressure if the slurryPreventing the occurrence of hydraulic fracturing in a slurry shield requires investigating the effectsof related influencing factors on the hydraulic fracturing pressure and fracture pattern.In this study, a hydraulic fracturing apparatus was developed to test the slurry-induced fracturing ofBased on the test results, an empirical approach was proposed to estimate the fracturing pressure of

Keywords： slurry shield tunneling     hydraulic fracturing test     fracturing pressure     fracture dip     unconfined compressive    

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Application of artificial fracturing for low permeable reservoir in Xianhe region

Xiao Shuming,Lv Zhiqiang,Guo Zhihua,Liu Xueqing

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 65-69

Abstract: the characteristics of low permeability and small porosity of high pressure low permeable reservoir, fracturingSince 2008, 79 fracturing mapping have been performed successfully in Xianhe region, which offers great

Keywords： fracturing mapping     low permeability     hydraulic fracturing    

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Long-term behavior and safety assessment of Sance Rockfill Dam

Marta DOLEZALOVA, Ivo HLADIK

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 79-89 doi: 10.1007/s11709-010-0010-9

Abstract: assessment of the dam including slope stability analysis and estimation of the clay core cracking and hydraulicfracturing hazard.

Keywords： rockfill dam     path dependence     creep     calibration     cracking     hydraulic fracturing hazard    

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Stress distribution in third subsidence belt

Yan Zhitao,Liu Jianzhong,Qiu Jinping,Jin Lihua

Strategic Study of CAE 2009, Volume 11, Issue 2,   Pages 33-35

Abstract: justify;">Stress distribution in the third subsidence belt is presented , with great amounts of data on hydraulicfracture orientation obtained from monitoring hydraulic fracturing , and the direction of the maximum

Keywords： hydraulic fracturing monitoring with micro- seismics     third subsidence belt     direction of maximumprinciplestress     hydraulic fracturing treatment    

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Application of hydraulic fracturing techniques for CBM wells in Qinshui coal field

ou Jinglong,Liu Zhidong,Li Jianzhong

Strategic Study of CAE 2011, Volume 13, Issue 1,   Pages 89-92

Abstract: "text-align: justify;">According to the CBM(coal bed methane) features and possible difficulties in fracturingtechniques, a new hydraulic fracturing method with casing injection, high output and activated water

Keywords： CBM(coal bed methane)     natural joint     adsorption     hydraulic fracturing    

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Horizontal effects in fracturing operation of coal bed methane in Qinshui,Shanxi Province

Li Mengxi,Zhang Cong

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 16-19

Abstract:

This paper describes horizontal effects of CBM (coal bed methane)fracturingfractures have adverse effects, including reduced production flow rate, depletion, and watering during fracturingThis discovery shows that the horizontal compression of fracturing could have adverse impact on productionof adjacent wells, and fracturing designer should be aware of it.

Keywords： coal bed methane     fracture     hydraulic fracturing    

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Microseismic monitoring technology

Tang Chunhua,Gu Guangqing

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 95-99

Abstract:

Microseismic (MS) monitoring is a hot topic in the applied geophysics recently. The MS mechanism and histories are introduced firstly in this article, and then the instruction of the MS equipment such as acquisition strategies, optimal sensors, array design, digital-signal processing, event location, velocity calibration, and monitoring deployment, is discussed. MS is a great technology with a long future, and we need to foster the understanding and acceptance of this technology.

Keywords： microseismic monitoring     hydraulic fracturing     oil and natural gas     SNR (signal to noise ratio)     event    

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Test investigation on hydraulic losses in the discharge passage of an axial-flow pump

QIU Baoyun, CAO Haihong, JIANG Wei, GAO Zhaohui, WANG Fei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 50-56 doi: 10.1007/s11465-007-0008-8

Abstract: The hydraulic loss characteristics are determined and analyzed.The methods deducing the hydraulic losses are investigated.The results indicate that the passage hydraulic losses are not proportional to the flow discharge.Compared with a circular pipe, the hydraulic losses of a divergent discharge passage are smaller andlosses are also big, but a small circulation can slightly reduce hydraulic losses.
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Key problems and solutions in supercritical CO

Haizhu WANG, Gensheng LI, Bin ZHU, Kamy SEPEHRNOORI, Lujie SHI, Yong ZHENG, Xiaomei SHI

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 667-672 doi: 10.1007/s11708-019-0626-y

Abstract: Supercritical CO fracturing is considered to be a new method for efficient exploitation of unconventionalviscosity, high diffusion coefficient, and lack of surface tension, which brings about great advantages for fracturingIn this paper, the above problems were analyzed by combining field test with laboratory study and specificAfter solving the above three problems, the field test of supercritical CO fracturing can be conductedThe research results can promote the industrialization process of supercritical CO fracturing.

Keywords： supercritical CO2     fracturing     friction loss     proppant carrying     flied test problem    

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Interactions between the Design and Operation of Shale Gas Networks, Including CO2 Sequestration

Sharifzadeh Mahdi,Xingzhi Wang,Nilay Shah

Engineering 2017, Volume 3, Issue 2,   Pages 244-256 doi: 10.1016/J.ENG.2017.02.007

Abstract: the ultra-low permeability of shale gas reservoirs, special procedures such as horizontal drilling, hydraulicfracturing, periodic well shut-in, and carbon dioxide (CO2) injection may be required inhighest shale gas production may not necessarily be the most profitable design; and that drilling, fracturing

Keywords： Shale gas     Hydraulic fracturing     Scheduling     Well shut-in     CO2 sequestration     Simultaneous optimization    

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Enhancing fatigue life of cylinder-crown integrated structure by optimizing dimension

Weiwei ZHANG,Xiaosong WANG,Zhongren WANG,Shijian YUAN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 102-110 doi: 10.1007/s11465-015-0329-y

Abstract:

Cylinder-crown integrated hydraulic press (CCIHP) is a new press structure.The hemispherical hydraulic cylinder also functions as a main portion of crown, which has lower weightand higher section modulus compared with the conventional hydraulic cylinder and press crown.Subsequently, strain-controlled fatigue test is carried out, and the stress-strain hysteresis loops and

Keywords： cylinder-crown integrated hydraulic press (CCIHP)     adaptive macro genetic algorithms (AMGA)     strain-controlledfatigue test    

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Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0706-2

Abstract: consumption, execution time, and excavation volume as the objective functions is presented for the electro-hydraulic

Keywords： trajectory planning     electro-hydraulic shovel     cubic polynomial S-curve     multiobjective optimization    

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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

Abstract:

Well Su 75-70-6H is the largest open hole horizontal well fracturingwhether fractures are generated, locations and patterns of fractures, and further provides a guide for fracturingoperations; monitoring can also identify location of possible fracturing fluid leakage, provide earlyIt proves that domestic manufactured fracturing downhole tools can be used.The result of microseismic

Keywords： fracturing     microseismic monitoring     fracture    

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Monitoring and Analyzing on Fracturing Fracture from Horizontal Well

Liu Jianzhong,Zhang Chuanxu,Zhao Yanbo,Jiang Yushuang,Song Jianxing

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 60-64

Abstract: The microseism monitoring of man-made fracture can understand the shape and orientation of fracturing

Keywords： horizontal well     fracturing fracture     microseism monitor    

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Title Author Date Type Operation

Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Journal Article

Experimental study on slurry-induced fracturing during shield tunneling

Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI

Journal Article

Application of artificial fracturing for low permeable reservoir in Xianhe region

Xiao Shuming,Lv Zhiqiang,Guo Zhihua,Liu Xueqing

Journal Article

Long-term behavior and safety assessment of Sance Rockfill Dam

Marta DOLEZALOVA, Ivo HLADIK

Journal Article

Stress distribution in third subsidence belt

Yan Zhitao,Liu Jianzhong,Qiu Jinping,Jin Lihua

Journal Article

Application of hydraulic fracturing techniques for CBM wells in Qinshui coal field

ou Jinglong,Liu Zhidong,Li Jianzhong

Journal Article

Horizontal effects in fracturing operation of coal bed methane in Qinshui,Shanxi Province

Li Mengxi,Zhang Cong

Journal Article

Microseismic monitoring technology

Tang Chunhua,Gu Guangqing

Journal Article

Test investigation on hydraulic losses in the discharge passage of an axial-flow pump

QIU Baoyun, CAO Haihong, JIANG Wei, GAO Zhaohui, WANG Fei

Journal Article

Key problems and solutions in supercritical CO

Haizhu WANG, Gensheng LI, Bin ZHU, Kamy SEPEHRNOORI, Lujie SHI, Yong ZHENG, Xiaomei SHI

Journal Article

Interactions between the Design and Operation of Shale Gas Networks, Including CO2 Sequestration

Sharifzadeh Mahdi,Xingzhi Wang,Nilay Shah

Journal Article

Enhancing fatigue life of cylinder-crown integrated structure by optimizing dimension

Weiwei ZHANG,Xiaosong WANG,Zhongren WANG,Shijian YUAN

Journal Article

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

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

Monitoring and Analyzing on Fracturing Fracture from Horizontal Well

Liu Jianzhong,Zhang Chuanxu,Zhao Yanbo,Jiang Yushuang,Song Jianxing

Journal Article