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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 concentricpressure regardless of the proportion of internal-layer soil.Moreover, 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 slurryof related influencing factors on the hydraulic fracturing pressure and fracture pattern.The fracturing pressure increases linearly with the increase in the circumferential pressure, but itThe fracturing pressure increases with an increase in the unconfined compressive strength as well asBased 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: "text-align: justify;">Aiming at the characteristics of low permeability and small porosity of high pressurelow permeable reservoir, fracturing mapping was employed during transformation.Since 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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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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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: of the dam including slope stability analysis and estimation of the clay core cracking and hydraulic fracturing

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

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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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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: presented , with great amounts of data on hydraulic fracture orientation obtained from monitoring hydraulic fracturing

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

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A case study of oriented perforating technology for the multiple crack fracturing

Tang Meirong

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 105-112

Abstract: text-align: justify;">It has been proved by successful experimental study and application of the new fracturingdevelopment the oil through the general methods due to geological condition, watering well distribution and fracturingVolume fracturing is proposed to increase the productivity by multiple crack fracturing since 2006 inThe oriented perforating technology for the multiple crack fracturing is presented and applied in theproductivity also increased 38.1 % compared to the adjacent by oriented perforating and multiple crack fracturing

Keywords： oriented perforating fractural diverting multiple crack fracturing discharge volume increase in production

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Barehole horizontal well fracturing technology and application for low permeable reservoir

Pan Yubing

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 70-73

Abstract: What's more, we also combine drilling tures with the oil expansion packer process to carry out fracturingBesides, using open-hole horizontal reservoir fracturing improvement can increase daily oil production

Keywords： low permeability horizontal well open hole completion fracturing

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Shale reservoir network fracturing technology research and experiment

Jia Changgui,Li Shuangming,Wang Haitao, Jiang Tingxue

Strategic Study of CAE 2012, Volume 14, Issue 6, Pages 106-112

Abstract:

Shale reservoir fracturing is the critical and center technology forDifferent from conventional low permeability oil and gas reservoir whose goal is to improve fracturingProposed the concept of network effective fracturing stimulation volume of shale ( ESRV ), in referenceto North American shale gas fracturing experience and the domestic shale gas fracturing based on practice, network fracturing methods, flowback technology and other aspects.

Keywords： shale reservoir network fracturing

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Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 273-287 doi: 10.1007/s11709-018-0459-5

Abstract: We present an overview of the most popular state-of-the-art computational methods available for modelling fracture in rock. The summarized numerical methods can be classified into three categories: Continuum Based Methods, Discrete Crack Approaches, and Block-Based Methods. We will not only provide an extensive review of those methods which can be found elsewhere but particularly address their potential in modelling fracture in rock mechanics and geotechnical engineering. In this context, we will discuss their key applications, assumptions, and limitations. Furthermore, we also address ‘general’ difficulties that may arise for simulating fracture in rock and fractured rock. This review will conclude with some final remarks and future challenges.

Keywords： numerical modelling method development rock mechanics fractured rock rock fracturing

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Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth pressure

Keywords： additional position change deviation correction trajectory earth pressure balance shield mechanical

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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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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