Fracture failure analysis and research on slip of casing

Surface deformation associated with fractures near the

Oct 30,2020 Fracture failure analysis and research on slip of casing#0183;Most deformation associated with an earthquake is,not surprisingly,in the same direction as the fault rupture.Xu et al.used satellite imaging to find areas of deformation associated with the 2019 Ridgecrest earthquake sequence that moved in the opposite direction.These regions moved in this direction because of inelastic deformation,which helped to accommodate the overall fault rupture Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextMechanisms and Influence of Casing Shear DeformationCasing shear deformation has become a serious problem in the development of shale gas fields,which is believed to be related to fault slipping caused by multistage fracturing,and the evaluation of the reduction of a casings inner diameter is key.Although many fault slipping models have been published,most of them have not taken the fluid-solid-heat coupling effect into account,and none Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextNumerical investigation of casing shear deformation due to The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin.Based on engineering and geology analyses,natural fracture/fault slip leads to casing shear deformation during hydraulic fracturing.

Some results are removed in response to a notice of local law requirement.For more information,please see here.Risk of well integrity failure due sustained casing pressure

RISK OF WELL INTEGRITY FAILURE DUE SUSTAINED CASING PRESSURE A Thesis Submitted to the Graduate Faculty of the Louisiana State University andRisk of well integrity failure due sustained casing pressureRISK OF WELL INTEGRITY FAILURE DUE SUSTAINED CASING PRESSURE A Thesis Submitted to the Graduate Faculty of the Louisiana State University and

Research on failure characteristics of goaf floor in the

theoretical analysis method.The inclined coal goaf oors stress solving mechanics mode is set up based on the fracture mechanics theories.According tMohrCoulomb criter,e depth solving the equation is derived.With the theoretical analysis of the oor failure characteristics during the inclined coal seam mining,(1)the maximumResearch on failure characteristics of goaf floor in the Floor failure is the leading cause of mine water inrush after coal mining above the confined aquifer.Therefore,the prediction of floor failure depth is an important content of mine water prevention.The mining-induced failure depth and goaf floor characteristics are researched to grasp the goaf failure condition after the inclined coal seam mining with the theoretical analysis method.Quantifying the induced fracture slip and casing Fracture failure analysis and research on slip of casing#0183;Although the behaviors of formation and casing during fracturing are complicated,the fracture slip and casing shear deformation have been gradually accepted to be the major failure mechanism.The previous literature mainly address qualitative description and limited analysis

Numerical investigation of casing shear deformation due

The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin.Based on engineering and geology analyses,natu-ral fracture/fault slip leads to casing shear deformation during hydraulic fracturing.Hence,natural fracture/fault slip and casing-cement sheath-formation assembly fi-Numerical investigation of casing shear deformation due to Jun 17,2020 Fracture failure analysis and research on slip of casing#0183;Guo et al 13 noted that the casing failure rate near the natural fracture/fault (hereafter,fault is replaced with natural fracture) was as high as 56.76%,which included 37 total natural fractures.Chen et al 14 conducted risk analysis on formation shear slip with 3D seismic data and a Mohr's circle.Liu et al 15 proposed a semianalytical model to predict the slip distance of a partial Mechanisms and Influence of Casing Shear DeformationCasing shear deformation has become a serious problem in the development of shale gas fields,which is believed to be related to fault slipping caused by multistage fracturing,and the evaluation of the reduction of a casings inner diameter is key.Although many fault slipping models have been published,most of them have not taken the fluid-solid-heat coupling effect into account,and none

Fracture gradient prediction an overview and an improved

Sep 02,2017 Fracture failure analysis and research on slip of casing#0183;The fracture gradient is a critical parameter for drilling mud weight design in the energy industry.A new method in fracture gradient prediction is proposed based on analyzing worldwide leak-off test (LOT) data in offshore drilling.Current fracture gradient prediction methods are also reviewed and compared to the proposed method.We analyze more than 200 LOT data in several offshore Fracture gradient prediction an overview and an improved Sep 02,2017 Fracture failure analysis and research on slip of casing#0183;The fracture gradient is a critical parameter for drilling mud weight design in the energy industry.A new method in fracture gradient prediction is proposed based on analyzing worldwide leak-off test (LOT) data in offshore drilling.Current fracture gradient prediction methods are also reviewed and compared to the proposed method.We analyze more than 200 LOT data in several offshore Fracture failure analysis and research on slip of casing Fracture failure analysis and research on slip of casing#0183;The shear failure mechanism induced by fracture slip and a numerical modal are proposed.The mechanical behavior of casing in the slip fractures is analyzed,and casing curvature is newly introduced to assess casing integrity in shale gas wells under hydraulic fracturing.Furthermore,the effects of key factors on casing integrity are investigated.

FRACTURE TOUGHNESS IN RELATION TO STEEL

fracture toughness approach offers the possibility of distinguishing the ability to resist fast fracture from other constraints such as plastic collapse and,sometimes,buckling.Not all ductile failures involve fracture.The ductile failure is predictable because the necessary load required for a ductile fracture can be calculated or estimated.FAILURE ANALYSIS OF YOKE JOINT ASSEMBLYworkshop,it is found that the yoke joint failure is a serious issue in ST Bus.It is found that the Yoke Joint fails mainly due to I) Slip Yoke Fracture And II) Flange Yoke Fracture Hence it is decided to perform failure analysis to check the dimension of Yoke Joint with existing material in order to identify the other causes of failure.Experimental Research on Failure Behavior of 35CrMnSi in the fracture surface.The research results provide reference for 35CrMnSi failure behavior related research.Introduction .Failure behavior of metal materials under strong impact load is the focus thatmaterial and weapons researchers pay close attention[1-4].Some international researchers have been spread out study broadly on dynamic

Experimental Research on Failure Behavior of 35CrMnSi

in the fracture surface.The research results provide reference for 35CrMnSi failure behavior related research.Introduction .Failure behavior of metal materials under strong impact load is the focus thatmaterial and weapons researchers pay close attention[1-4].Some international researchers have been spread out study broadly on dynamic Effect of natural fractures on determining closure Aug 28,2019 Fracture failure analysis and research on slip of casing#0183;In Utah FORGE reservoir,eight pressure transient tests (microhydraulic fracturing and DFIT) show natural fracture/pressure-dependent leakoff.This behavior may lead to misinterpretation of the closure pressure (proxy for minimum principal stress).The closure pressures obtained from DFIT (or microhydraulic fracturing) testing may reflect shear failure along natural fractures or Effect of natural fractures on determining closure Aug 28,2019 Fracture failure analysis and research on slip of casing#0183;In Utah FORGE reservoir,eight pressure transient tests (microhydraulic fracturing and DFIT) show natural fracture/pressure-dependent leakoff.This behavior may lead to misinterpretation of the closure pressure (proxy for minimum principal stress).The closure pressures obtained from DFIT (or microhydraulic fracturing) testing may reflect shear failure along natural fractures or

Deformation Analysis and Fracture Mechanism of Steel

Steel casing damage in oil wells is the primary hazards of oil production in China.There are two main reasons for the steel casing damage,one is the displacement loads on the external interface which primary come from rock creep,and another reason is temperature load on the internal surface which comes from steam injection.In this article,rock creep under fluid-solid interaction is Configuration and Size Effects on Bond Stress-Slip and Nov 11,2014 Fracture failure analysis and research on slip of casing#0183;These differing crack patterns also cause distinct governing failure modes involving splitting failure,shearing-off failure,and bar fracture,respectively.Consequently,the relationships of bond stress and bond slip should be defined considering configuration effects,and a method should be developed to predict the governing failure mode for Cited by 12Publish Year 2018Author Fei Yin,Fei Yin,Lihong Han,Shangyu Yang,Yong Deng,Yongming He,Xingru Wu(PDF) Casing deformation from fracture slip in hydraulic Results indicate that one of the casing failure mechanisms in shale gas wells is shear deformation induced by the slip of shear fractures.The simulated casing deformation is consistent with the

Casing failure mechanism during volume fracturing A case

Aug 13,2017 Fracture failure analysis and research on slip of casing#0183;Thus,casing failure of X201 well is caused by the elliptical deformation of casing cross section led by volume fracturing.The 114-mm gauge tool cannot pass through the damaged casing whose inner diameter is only 110.8 mm,and sticking occurred at 2441.6 m.The casing failure mechanism during volume fracturing of shale gas wells is revealed.Casing Shear Deformation Based on Micro Seismic Data Casing shear deformation,which is caused by fault slipping,is the main morphology of casing deformation occurred during multistage fracturing.In order to determine the relationship between fault slipping and casing shear deformation,the micro seismic data collected from engineering field which can reflect the reality of the formations was analyzed.Casing Shear Deformation Based on Micro Seismic Data Casing shear deformation,which is caused by fault slipping,is the main morphology of casing deformation occurred during multistage fracturing.In order to determine the relationship between fault slipping and casing shear deformation,the micro seismic data collected from engineering field which can reflect the reality of the formations was analyzed.

Burst Strength of Tubing and Casing Based on Twin Shear

The research on the ISO burst strength model has found that it can better predict the burst strength of tubing and casing by using the minimum wall thickness of pipe than API 5C3 .However,it can be observed from the 106 groups of test data provided by three industry sources that 50 percent predictive values of ISO burst strength model are remarkably higher than real burst values,which Burst Strength of Tubing and Casing Based on Twin Shear The research on the ISO burst strength model has found that it can better predict the burst strength of tubing and casing by using the minimum wall thickness of pipe than API 5C3 .However,it can be observed from the 106 groups of test data provided by three industry sources that 50 percent predictive values of ISO burst strength model are remarkably higher than real burst values,which Analyzing failure of casing head slip hanger - ScienceDirectJan 01,2020 Fracture failure analysis and research on slip of casing#0183;1.Introduction.The problems caused by sealing failure of casing head accessories are worsening with longer production cycles.With the aging of rubber seals and slip fracture and failure,the high pressure in the wellbore may move from the annulus bearing the high stress to the annulus bearing the low stress along the failure positionresulting in abandonment of the whole well or even the

Analysis of casing-shift problems in compacting reservoirs

The laboratory experiments showed that a casing does not simply slip when a shear load is applied.It accompanies shear failure of cement sheath.Hence,when casing shift occurs,shear fractures are also induced in the cement,which may cause gas or liquid migration through the fracture network.Analysis of Casing Fatigue Failure During Multistage Another reason for casing deformation was proposed by Haghshenas et al.(2017) and Liu et al.(2017) who noted that additional load is exerted on the casing by fracture slip through the wellbore.Advances in Mechanical Engineering 2017,Vol.9(8) 19 properties and its effect on casing failure in the volume fracturing process are studied.Moreover,a compara-tive analysis is conducted with the field multi-arm cali-per imaging tool (MIT) logging curve of casing failure section in X201 well.Analysis on the change of rock mechanical properties during volume fracturing Basic data of X201 well

A new numerical method for evaluating the variation of

Jul 23,2019 Fracture failure analysis and research on slip of casing#0183;4.3 Sensitivity analysis of casing shear deformation 4.3.1 Influence of sliding distance.Sliding distance has a significant impact on the variation of the production casing inner diameter after fault slipping,as shown in Figure 6.It can be seen that with the increase of the sliding distance,the reduction is increasingly apparent.(PDF) A study on casing deformation failure during multi 4,5 Based on comprehensive analysis of field microseism,well logging,and lead model,the main casing damage mode corresponds to shear failure due to the formation slip that is reactivated in (PDF) A study on casing deformation failure during multi 4,5 Based on comprehensive analysis of field microseism,well logging,and lead model,the main casing damage mode corresponds to shear failure due to the formation slip that is reactivated in

Surface deformation associated with fractures near the

Oct 30,2020 Fracture failure analysis and research on slip of casing#0183;Most deformation associated with an earthquake is,not surprisingly,in the same direction as the fault rupture.Xu et al.used satellite imaging to find areas of deformation associated with the 2019 Ridgecrest earthquake sequence that moved in the opposite direction.These regions moved in this direction because of inelastic deformation,which helped to accommodate the overall fault rupture Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextMechanisms and Influence of Casing Shear DeformationCasing shear deformation has become a serious problem in the development of shale gas fields,which is believed to be related to fault slipping caused by multistage fracturing,and the evaluation of the reduction of a casings inner diameter is key.Although many fault slipping models have been published,most of them have not taken the fluid-solid-heat coupling effect into account,and none Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextNumerical investigation of casing shear deformation due to The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin.Based on engineering and geology analyses,natural fracture/fault slip leads to casing shear deformation during hydraulic fracturing.

Some results are removed in response to a notice of local law requirement.For more information,please see here.Risk of well integrity failure due sustained casing pressure

RISK OF WELL INTEGRITY FAILURE DUE SUSTAINED CASING PRESSURE A Thesis Submitted to the Graduate Faculty of the Louisiana State University andRisk of well integrity failure due sustained casing pressureRISK OF WELL INTEGRITY FAILURE DUE SUSTAINED CASING PRESSURE A Thesis Submitted to the Graduate Faculty of the Louisiana State University and

Research on failure characteristics of goaf floor in the

theoretical analysis method.The inclined coal goaf oors stress solving mechanics mode is set up based on the fracture mechanics theories.According tMohrCoulomb criter,e depth solving the equation is derived.With the theoretical analysis of the oor failure characteristics during the inclined coal seam mining,(1)the maximumResearch on failure characteristics of goaf floor in the Floor failure is the leading cause of mine water inrush after coal mining above the confined aquifer.Therefore,the prediction of floor failure depth is an important content of mine water prevention.The mining-induced failure depth and goaf floor characteristics are researched to grasp the goaf failure condition after the inclined coal seam mining with the theoretical analysis method.Quantifying the induced fracture slip and casing Fracture failure analysis and research on slip of casing#0183;Although the behaviors of formation and casing during fracturing are complicated,the fracture slip and casing shear deformation have been gradually accepted to be the major failure mechanism.The previous literature mainly address qualitative description and limited analysis

Numerical investigation of casing shear deformation due

The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin.Based on engineering and geology analyses,natu-ral fracture/fault slip leads to casing shear deformation during hydraulic fracturing.Hence,natural fracture/fault slip and casing-cement sheath-formation assembly fi-Numerical investigation of casing shear deformation due to Jun 17,2020 Fracture failure analysis and research on slip of casing#0183;Guo et al 13 noted that the casing failure rate near the natural fracture/fault (hereafter,fault is replaced with natural fracture) was as high as 56.76%,which included 37 total natural fractures.Chen et al 14 conducted risk analysis on formation shear slip with 3D seismic data and a Mohr's circle.Liu et al 15 proposed a semianalytical model to predict the slip distance of a partial Mechanisms and Influence of Casing Shear DeformationCasing shear deformation has become a serious problem in the development of shale gas fields,which is believed to be related to fault slipping caused by multistage fracturing,and the evaluation of the reduction of a casings inner diameter is key.Although many fault slipping models have been published,most of them have not taken the fluid-solid-heat coupling effect into account,and none

Fracture gradient prediction an overview and an improved

Sep 02,2017 Fracture failure analysis and research on slip of casing#0183;The fracture gradient is a critical parameter for drilling mud weight design in the energy industry.A new method in fracture gradient prediction is proposed based on analyzing worldwide leak-off test (LOT) data in offshore drilling.Current fracture gradient prediction methods are also reviewed and compared to the proposed method.We analyze more than 200 LOT data in several offshore Fracture gradient prediction an overview and an improved Sep 02,2017 Fracture failure analysis and research on slip of casing#0183;The fracture gradient is a critical parameter for drilling mud weight design in the energy industry.A new method in fracture gradient prediction is proposed based on analyzing worldwide leak-off test (LOT) data in offshore drilling.Current fracture gradient prediction methods are also reviewed and compared to the proposed method.We analyze more than 200 LOT data in several offshore Fracture failure analysis and research on slip of casing Fracture failure analysis and research on slip of casing#0183;The shear failure mechanism induced by fracture slip and a numerical modal are proposed.The mechanical behavior of casing in the slip fractures is analyzed,and casing curvature is newly introduced to assess casing integrity in shale gas wells under hydraulic fracturing.Furthermore,the effects of key factors on casing integrity are investigated.

FRACTURE TOUGHNESS IN RELATION TO STEEL

fracture toughness approach offers the possibility of distinguishing the ability to resist fast fracture from other constraints such as plastic collapse and,sometimes,buckling.Not all ductile failures involve fracture.The ductile failure is predictable because the necessary load required for a ductile fracture can be calculated or estimated.FAILURE ANALYSIS OF YOKE JOINT ASSEMBLYworkshop,it is found that the yoke joint failure is a serious issue in ST Bus.It is found that the Yoke Joint fails mainly due to I) Slip Yoke Fracture And II) Flange Yoke Fracture Hence it is decided to perform failure analysis to check the dimension of Yoke Joint with existing material in order to identify the other causes of failure.Experimental Research on Failure Behavior of 35CrMnSi in the fracture surface.The research results provide reference for 35CrMnSi failure behavior related research.Introduction .Failure behavior of metal materials under strong impact load is the focus thatmaterial and weapons researchers pay close attention[1-4].Some international researchers have been spread out study broadly on dynamic

Experimental Research on Failure Behavior of 35CrMnSi

in the fracture surface.The research results provide reference for 35CrMnSi failure behavior related research.Introduction .Failure behavior of metal materials under strong impact load is the focus thatmaterial and weapons researchers pay close attention[1-4].Some international researchers have been spread out study broadly on dynamic Effect of natural fractures on determining closure Aug 28,2019 Fracture failure analysis and research on slip of casing#0183;In Utah FORGE reservoir,eight pressure transient tests (microhydraulic fracturing and DFIT) show natural fracture/pressure-dependent leakoff.This behavior may lead to misinterpretation of the closure pressure (proxy for minimum principal stress).The closure pressures obtained from DFIT (or microhydraulic fracturing) testing may reflect shear failure along natural fractures or Effect of natural fractures on determining closure Aug 28,2019 Fracture failure analysis and research on slip of casing#0183;In Utah FORGE reservoir,eight pressure transient tests (microhydraulic fracturing and DFIT) show natural fracture/pressure-dependent leakoff.This behavior may lead to misinterpretation of the closure pressure (proxy for minimum principal stress).The closure pressures obtained from DFIT (or microhydraulic fracturing) testing may reflect shear failure along natural fractures or

Deformation Analysis and Fracture Mechanism of Steel

Steel casing damage in oil wells is the primary hazards of oil production in China.There are two main reasons for the steel casing damage,one is the displacement loads on the external interface which primary come from rock creep,and another reason is temperature load on the internal surface which comes from steam injection.In this article,rock creep under fluid-solid interaction is Configuration and Size Effects on Bond Stress-Slip and Nov 11,2014 Fracture failure analysis and research on slip of casing#0183;These differing crack patterns also cause distinct governing failure modes involving splitting failure,shearing-off failure,and bar fracture,respectively.Consequently,the relationships of bond stress and bond slip should be defined considering configuration effects,and a method should be developed to predict the governing failure mode for Cited by 12Publish Year 2018Author Fei Yin,Fei Yin,Lihong Han,Shangyu Yang,Yong Deng,Yongming He,Xingru Wu(PDF) Casing deformation from fracture slip in hydraulic Results indicate that one of the casing failure mechanisms in shale gas wells is shear deformation induced by the slip of shear fractures.The simulated casing deformation is consistent with the

Casing failure mechanism during volume fracturing A case

Aug 13,2017 Fracture failure analysis and research on slip of casing#0183;Thus,casing failure of X201 well is caused by the elliptical deformation of casing cross section led by volume fracturing.The 114-mm gauge tool cannot pass through the damaged casing whose inner diameter is only 110.8 mm,and sticking occurred at 2441.6 m.The casing failure mechanism during volume fracturing of shale gas wells is revealed.Casing Shear Deformation Based on Micro Seismic Data Casing shear deformation,which is caused by fault slipping,is the main morphology of casing deformation occurred during multistage fracturing.In order to determine the relationship between fault slipping and casing shear deformation,the micro seismic data collected from engineering field which can reflect the reality of the formations was analyzed.Casing Shear Deformation Based on Micro Seismic Data Casing shear deformation,which is caused by fault slipping,is the main morphology of casing deformation occurred during multistage fracturing.In order to determine the relationship between fault slipping and casing shear deformation,the micro seismic data collected from engineering field which can reflect the reality of the formations was analyzed.

Burst Strength of Tubing and Casing Based on Twin Shear

The research on the ISO burst strength model has found that it can better predict the burst strength of tubing and casing by using the minimum wall thickness of pipe than API 5C3 .However,it can be observed from the 106 groups of test data provided by three industry sources that 50 percent predictive values of ISO burst strength model are remarkably higher than real burst values,which Burst Strength of Tubing and Casing Based on Twin Shear The research on the ISO burst strength model has found that it can better predict the burst strength of tubing and casing by using the minimum wall thickness of pipe than API 5C3 .However,it can be observed from the 106 groups of test data provided by three industry sources that 50 percent predictive values of ISO burst strength model are remarkably higher than real burst values,which Analyzing failure of casing head slip hanger - ScienceDirectJan 01,2020 Fracture failure analysis and research on slip of casing#0183;1.Introduction.The problems caused by sealing failure of casing head accessories are worsening with longer production cycles.With the aging of rubber seals and slip fracture and failure,the high pressure in the wellbore may move from the annulus bearing the high stress to the annulus bearing the low stress along the failure positionresulting in abandonment of the whole well or even the

Analysis of casing-shift problems in compacting reservoirs

The laboratory experiments showed that a casing does not simply slip when a shear load is applied.It accompanies shear failure of cement sheath.Hence,when casing shift occurs,shear fractures are also induced in the cement,which may cause gas or liquid migration through the fracture network.Analysis of Casing Fatigue Failure During Multistage Another reason for casing deformation was proposed by Haghshenas et al.(2017) and Liu et al.(2017) who noted that additional load is exerted on the casing by fracture slip through the wellbore.Advances in Mechanical Engineering 2017,Vol.9(8) 19 properties and its effect on casing failure in the volume fracturing process are studied.Moreover,a compara-tive analysis is conducted with the field multi-arm cali-per imaging tool (MIT) logging curve of casing failure section in X201 well.Analysis on the change of rock mechanical properties during volume fracturing Basic data of X201 well

A new numerical method for evaluating the variation of

Jul 23,2019 Fracture failure analysis and research on slip of casing#0183;4.3 Sensitivity analysis of casing shear deformation 4.3.1 Influence of sliding distance.Sliding distance has a significant impact on the variation of the production casing inner diameter after fault slipping,as shown in Figure 6.It can be seen that with the increase of the sliding distance,the reduction is increasingly apparent.(PDF) A study on casing deformation failure during multi 4,5 Based on comprehensive analysis of field microseism,well logging,and lead model,the main casing damage mode corresponds to shear failure due to the formation slip that is reactivated in (PDF) A study on casing deformation failure during multi 4,5 Based on comprehensive analysis of field microseism,well logging,and lead model,the main casing damage mode corresponds to shear failure due to the formation slip that is reactivated in

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