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Research and assessment of high efficiency temporary plugging agent used for refracturing
Yan Zhitao
Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 20-25
After a period of time of production, in some wells, the crude oil at the old crack has basically been taken out, but there's certain amount of recoverable reserves. In order to improve the efficiency of these wells, refracturing is required. Temporary plugging agent in refracturing plays a very important role; it is the key to the success of refracturing. In this article, a new kind of temporary plugging agent has been developed, we have done lots of laboratory testing researches about its performance and temporary plugging effect. And, nonlinear finite element numerical simulation analysis has been adopted for temporarily blocking crack and the impact of the wells. It is can be seen from the experiment and finite element analysis that the new temporary plugging agent has a good effect; it has no secondary pollution of wells. Temporary plugging agent can provide protection for wells, and it has a good prospect.
Keywords: refracturing temporary plugging agent fracture divert non-linear finite element analysis gas protection
Tests on impact effect of partial fracture at steel frame connections
CHEN Yiyi, BIAN Ruoning
Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4, Pages 295-301 doi: 10.1007/s11709-008-0049-z
Keywords: structural fracture natural fracture progressive high-frequency
Effect of fly ash replacement level on the fracture behavior of concrete
Mahdi AREZOUMANDI, Jeffery S. VOLZ
Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4, Pages 411-418 doi: 10.1007/s11709-013-0228-4
Keywords: concrete fracture energy fly ash
Computational modeling of fracture in concrete: A review
Luthfi Muhammad Mauludin, Chahmi Oucif
Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3, Pages 586-598 doi: 10.1007/s11709-020-0573-z
Keywords: concrete fracture macroscopic micromechanical heterogeneity
Computational modeling of fracture in capsule-based self-healing concrete: A 3D study
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1337-1346 doi: 10.1007/s11709-021-0781-1
Keywords: 3D fracture self-healing concrete spherical cohesive elements heterogeneous
Evaluating the material strength from fracture angle under uniaxial loading
Jitang FAN
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 288-293 doi: 10.1007/s11709-018-0480-8
A dimensional analysis on asphalt binder fracture and fatigue cracking
Qian ZHAO, Zhoujing YE
Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2, Pages 201-206 doi: 10.1007/s11709-017-0402-1
Keywords: Dimensional analysis asphalt fracture fatigue cracking
Experimental research on ductile fracture criterion in metal forming
Song YU, Weiming FENG
Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 308-311 doi: 10.1007/s11465-011-0233-z
Ductile fracture criterion is key limitation parameter in material forming.shearing test on 45# steel are utilized for providing the experimental values of the critical values at fracture, and 11 widely used ductile fracture criterion are selected to simulate the physical experiments andtheir relative accuracy for predicting and quantifying fracture initiation sites are investigated.triaxiality can be estimated successively using both Normalized Cockcroft-latham and the Brozzo ductile fracture
Keywords: ductile fracture criteria metal forming process material experiment stress triaxiality
Frontiers of Medicine 2022, Volume 16, Issue 3, Pages 496-506 doi: 10.1007/s11684-021-0828-7
Keywords: XGBoost deep neural network healthcare risk prediction
A concise review about fracture assessments of brittle solids with V-notches
Hsien-Yang YEH, Bin YANG
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 478-485 doi: 10.1007/s11709-019-0520-z
A concise review of recent studies about the fracture assessments of elastic brittle solid materialsFracture criteria such as strain energy density, J-integral, theory of critical distance are used.
Keywords: fracture assessment brittle solids V-notches review
Measurement of dynamic fracture toughness and failure behavior for explosive mock materials
Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG
Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 292-295 doi: 10.1007/s11465-011-0237-8
Keywords: bonded explosive simulant split Hopkinson pressure bar (SHPB) semicircular bending test deformation fracture
Yongchang CAI, Hehua ZHU, Xiaoying ZHUANG
Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4, Pages 369-378 doi: 10.1007/s11709-013-0222-x
Keywords: fracture crack propagation deformable block continuous/discontinuous deformation analysis (CDDA)
Experimental measurement of double-K fracture parameters of concrete with small-size aggregates
ZHANG Xiufang, XU Shilang, ZHENG Shuang
Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 448-457 doi: 10.1007/s11709-007-0061-8
Keywords: development concrete theoretical double- fracture
Thermo-elastic extended meshfree method for fracture without crack tip enrichment
A. ASADPOUR
Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 441-447 doi: 10.1007/s11709-015-0319-5
Keywords: meshfree method thermo-elasticity
3D fracture modelling and limit state analysis of prestressed composite concrete pipes
Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1, Pages 165-175 doi: 10.1007/s11709-018-0484-4
Keywords: cylindrical concrete structures limit state analysis 3D fracture modelling prestressed composite pipes
Title Author Date Type Operation
Research and assessment of high efficiency temporary plugging agent used for refracturing
Yan Zhitao
Journal Article
Tests on impact effect of partial fracture at steel frame connections
CHEN Yiyi, BIAN Ruoning
Journal Article
Effect of fly ash replacement level on the fracture behavior of concrete
Mahdi AREZOUMANDI, Jeffery S. VOLZ
Journal Article
Computational modeling of fracture in concrete: A review
Luthfi Muhammad Mauludin, Chahmi Oucif
Journal Article
Computational modeling of fracture in capsule-based self-healing concrete: A 3D study
Journal Article
Evaluating the material strength from fracture angle under uniaxial loading
Jitang FAN
Journal Article
A dimensional analysis on asphalt binder fracture and fatigue cracking
Qian ZHAO, Zhoujing YE
Journal Article
Experimental research on ductile fracture criterion in metal forming
Song YU, Weiming FENG
Journal Article
Hybrid deep learning model for risk prediction of fracture in patients with diabetes and osteoporosis
Journal Article
A concise review about fracture assessments of brittle solids with V-notches
Hsien-Yang YEH, Bin YANG
Journal Article
Measurement of dynamic fracture toughness and failure behavior for explosive mock materials
Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG
Journal Article
A continuous/discontinuous deformation analysis (CDDA) method based on deformable blocks for fracture
Yongchang CAI, Hehua ZHU, Xiaoying ZHUANG
Journal Article
Experimental measurement of double-K fracture parameters of concrete with small-size aggregates
ZHANG Xiufang, XU Shilang, ZHENG Shuang
Journal Article
Thermo-elastic extended meshfree method for fracture without crack tip enrichment
A. ASADPOUR
Journal Article