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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 geophysicsoptimal sensors, array design, digital-signal processing, event location, velocity calibration, and monitoring

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

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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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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

Abstract:

This paper discussed the development direction of microseismic monitoringtechnology, pointed out that improve the quality of microseismic monitoring system, reduce the front, and increase the number of microseismic monitoring stations so as to obtain more information that canAbove are important directions of microseismic monitoring technology development.and safety prediction of mine, reservoir besides oilfield fracturing and water monitoring.

Keywords： microseismic monitoring seismic prospecting fracturing monitoring water monitoring

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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: subsidence belt is presented , with great amounts of data on hydraulic fracture orientation obtained from monitoringhydraulic fracturing , and the direction of the maximum principle stress is specified .The monitoring data implies that the tectonic stress direction in third subsidence belt is the combined

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

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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 fracturingMicroseismic monitoring shows whether fractures are generated, locations and patterns of fractures, andfurther provides a guide for fracturing operations; monitoring can also identify location of possiblefracturing fluid leakage, provide early warning of sand blocking and help evaluate the effectivenessmonitoring accuratly reflect the operation process, as well as guide it.

Keywords： fracturing microseismic monitoring fracture

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Analysis of using microseismic monitoring to verify fracturing and waterflood on reservoir Chang 8 of

Wang Guoshun,Liu Jianzhong,Liu Linwang

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 40-44

Abstract: text-align: justify;">This paper describes arrival time of microseismic signals, which were obtained from monitoringfracturing and waterfloodand were used to interpolate mechanisms of micro-earthquake and verify reliabilityof fracturing and waterflood monitoring.orientation, waterflood front geometry, and microseismic mechanism nodal plane are consistent, and monitoringverify dependability of microseismic mapping itself, and it is an important measurement method for fracturing

Keywords： microseismic fracture waterflood performance waterflood front

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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 ofThe unconfined compressive strength of soil can reflect its ability to resist fracturing failure.

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

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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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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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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)fracturing, obtained from microseismic monitoring in Qinshui Basin.fractures 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: Safety assessment of the 62 m high Sance Rockfill Dam based on long-term monitoring results and theirCalibrated 2D and 3D models fitting the monitoring results were applied for the safety assessment ofthe 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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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 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 theIt is proved that multiple crack created by the downhole microseismic monitoring, productivity also increased38.1 % compared to the adjacent by oriented perforating and multiple crack fracturing, the characteristics

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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Non-invasive continuous blood pressure monitoring: a review of current applications

Elena Chung, Guo Chen, Brenton Alexander, Maxime Cannesson

Frontiers of Medicine 2013, Volume 7, Issue 1, Pages 91-101 doi: 10.1007/s11684-013-0239-5

Abstract:

Blood pressure monitoring has come a long way from the initial observations made by Reverend HalesThere are none that deny the importance of monitoring perioperative blood pressure; however, the limitedability of the current prevalent technology (oscillometric blood pressure monitoring) to offer continuousInvasive monitoring is able to detect beat-to-beat blood pressure measurement, but the risks inherent, and especially the creation of those offering non-invasive but continuous blood pressure monitoring

Keywords： non-invasive blood pressure monitoring continuous blood pressure monitoring invasive blood pressure monitoring

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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