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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: economic exploitation methods in low permeability reservoirs, the horizontal near-balance drilling and openhole completion techniques are adopted to reduce the reservoir pollutions caused by drilling and wellThe results of oil production test and commissioning show that near-balance drilling and open hole completionBesides, 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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Analysis of stress and failure in rock specimens with closed and open flaws on the surface

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1222-1237 doi: 10.1007/s11709-021-0773-1

Abstract: The influence of closed and open surface flaws on the stress distribution and failure in rock specimensThe simulated specimens include those with closed flaws and those with open flaws on the surface.results show significant differences in the stress, displacement, and failure behavior of the closed and openAccording to the results, when compression is the dominant mode of stress applied to the flaw surface, an openarticle suggest that failure at the rock surface may be managed in a favorable manner by fabricating open

Keywords： surface flaw     heterogeneity     circular hole     numerical modeling     relative displacement    

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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 fracturing

Keywords： fracturing     microseismic monitoring     fracture    

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Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1718-1727 doi: 10.1007/s11705-023-2319-7

Abstract: In recent years, organic photocatalyst under visible-light absorption has shown significant potential for solving environmental problems. However, it is still a great challenge for constructing a highly active organic photocatalyst due to the low separation efficiency of photogenerated carriers. Herein, an effective and robust photocatalyst perylene-3,4,9,10-tetracarboxylic diamide/boron nitride quantum dots (PDI/BNQDs), consisting of self-assemble PDI with π–π stacking structure and BNQDs, has been constructed and researched under visible light irradiation. The PDI/BNQDs composite gradually increases organic pollutant photodegradation with the loading amount of BNQDs. With 10 mL of BNQDs solution added (PDI/BNQDs-10), the organic pollutant photodegradation performance reaches a maximum, about 6.16 times higher with methylene blue and 1.68 times higher with ciprofloxacin than that of pure PDI supramolecular. The enhancement is attributed to improved separation of photogenerated carriers from self-assembled PDI by BNQDs due to their preeminent ability to extract holes. This work is significant for the supplement of PDI supramolecular composite materials. We believe that this photocatalytic design is capable of expanding organic semiconductors’ potential for their applications in photocatalysis.

Keywords： PDI     boron nitride     quantum dots     photocatalysis     hole transfer    

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Key uncertainty events impacting on the completion time of highway construction projects

Alireza MOGHAYEDI, Abimbola WINDAPO

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 275-298 doi: 10.1007/s42524-019-0022-7

Abstract: and accurate advanced machine learning technique to assess the impact of uncertainty events on the completion

Keywords： ANFIS     construction time     impact assessment     highway project     South Africa     uncertainty    

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Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 296-300 doi: 10.1007/s11465-011-0236-9

Abstract: conformal mapping, the problem of two non-symmetrical collinear cracks emanating from an elliptical holeelectric loading and anti-plane mechanical loading, which allowed us to take the electric field inside the hole

Keywords： piezoelectric materials     elliptical hole     semi-permeable crack     energy release rate     analytic solution    

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The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1200-1213 doi: 10.1007/s11709-019-0546-2

Abstract: The hand hole acts as a weak point and initial damage in the segment joint especially when the circumferentialThe experiment results show that the hand hole becomes the weakest point of the segment joint under ultra-highDifferent types and sizes of the hand hole have different degree of influences on the structural behavior

Keywords： shield tunneling     structural synthetic fiber concrete     hand hole     segment joint     ultimate bearing capacity    

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characteristic evaluation and interpolation reconstruction for surface topography of drilled composite hole

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 840-854 doi: 10.1007/s11465-021-0643-5

Abstract: improved fractal interpolation model is proposed to reconstruct the surface topography of composite holeHole profiles in 24 directions are measured.The maximum and minimum fractal dimension of the hole wall are 1.36 and 1.07, whereas the maximum and

Keywords： surface topography     fractal evaluation     fractal interpolation     reconstruction     composite    

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Design and analyses of open-ended pipe piles in cohesionless soils

Yuan GUO,Xiong (Bill) YU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 22-29 doi: 10.1007/s11709-016-0314-5

Abstract: Large open-ended pipe pile has been found to be advantageous for use in transportation projects.To close this practice gap, this paper first summarized different design methods for open-ended pipe

Keywords： open-ended pipe pile     soil plug     DEM     base capacity    

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Effects of Structure of Opening Hole in Gas Distributor on Detained Mass of Material for Fluidized Drying

Liu Wei,Tang Wencheng

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 41-43

Abstract: In order to acquire the effect law of structure of opening hole in gas distributor on detained mass ofThe curves of detained mass of material for drier with vertical-hole distributor and tithed-hole distributorBased on the result, the relationship data of drier with tilted-hole distributor were determined betweenthe production capacity and the hole ratio of distributor.In addition, changing the hole shape of distributor from vertical-hole to tilted-hole and adding the

Keywords： inert particles     fluidized drying     gas distributor     hole shape     hole ratio     detained mass of material    

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Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9,   Pages 1071-1088 doi: 10.1007/s11709-022-0879-0

Abstract: For open car park structures, adopting a performance-based structural fire design is often justifiedThis paper describes a numerical study on the thermal exposure on steel framing members in open car park

Keywords： open car park     localized fire     steel frame     numerical modeling     computational fluid dynamics    

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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 147-152 doi: 10.1007/s11465-009-0025-x

Abstract: The paper deals with the design and implementation of an open architecture CNC system for the NFPCM,Further, the paper develops the program and sets up the open and module NC system.

Keywords： flame pipe cutting     flame incision tracks     CNC     open architecture CNC system    

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Intelligent Drilling and Completion: A Review Review

Gensheng Li,Xianzhi Song,Shouceng Tian,Zhaopeng Zhu,

Engineering 2022, Volume 18, Issue 11,   Pages 33-48 doi: 10.1016/j.eng.2022.07.014

Abstract: In drilling and completion engineering, AI is regarded as a transformative technology that can lowersuch as digital twins and physics-guided neural networks, are expected to play roles in drilling and completionAdditionally, in intelligent drilling and completion, methods for the fusion of data-driven and physicsbasedapplication scenarios, this study comprehensively reviews the research status of intelligent drilling and completionThis study aims to enhance the berthing of AI techniques in drilling and completion engineering.

Keywords： Intelligent drilling and completion     Artificial intelligence     Intelligent application scenarios     Literature    

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Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 31-35 doi: 10.1007/s11708-008-0011-8

Abstract: Cavitation in miniature pumps was investigated experimentally for two semi-open centrifugal impellerssimilar cavitation performances as an ordinary-size pump, with the cavitation performance of the semi-openAlso, both the hydraulic and cavitation performance of the semi-open impeller were improved by the leaned

Keywords： cavitation performance     semi-open impeller     increased     two-dimensional     efficiency    

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Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

Zeyu Wu, Zhe Chen, Lin Peng

Frontiers of Medicine 2012, Volume 6, Issue 1,   Pages 85-88 doi: 10.1007/s11684-012-0174-x

Abstract: During the last few years, many surgeons have begun to use the harmonic scalpel in open surgery.The aim of the present study is to determine the value of the harmonic scalpel in open operation forA total of 153 patients who underwent open surgery for AAA at the Department of Vascular Surgery of GuangdongOpen surgery performed with the harmonic scalpel on 105 patients was compared with open operation usingThe harmonic scalpel is a safe and minimally invasive tool in open surgery for AAA and is associated

Keywords： abdominal aortic aneurysm     harmonic scalpel     minimally invasive    

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Title Author Date Type Operation

Barehole horizontal well fracturing technology and application for low permeable reservoir

Pan Yubing

Journal Article

Analysis of stress and failure in rock specimens with closed and open flaws on the surface

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

Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

Journal Article

Key uncertainty events impacting on the completion time of highway construction projects

Alireza MOGHAYEDI, Abimbola WINDAPO

Journal Article

Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Journal Article

The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Journal Article

characteristic evaluation and interpolation reconstruction for surface topography of drilled composite hole

Journal Article

Design and analyses of open-ended pipe piles in cohesionless soils

Yuan GUO,Xiong (Bill) YU

Journal Article

Effects of Structure of Opening Hole in Gas Distributor on Detained Mass of Material for Fluidized Drying

Liu Wei,Tang Wencheng

Journal Article

Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Journal Article

NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Journal Article

Intelligent Drilling and Completion: A Review

Gensheng Li,Xianzhi Song,Shouceng Tian,Zhaopeng Zhu,

Journal Article

Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Journal Article

Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

Zeyu Wu, Zhe Chen, Lin Peng

Journal Article