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Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Abstracts: The bonding quality of the second interface of cementing(the bonding surface between the cement sheath and the wellbore wall)seriously affects the isolation effect and production stability of oil and gas wells.At present,there is no unified standard and method for the indoor evaluation of the second interface of cementing. Based on the influence of mud cake on the bonding quality of cementing,the mechanical method,acoustic method and microstructure analysis method were used to evaluate the bonding quality of rock-cement combination samples before and after interface treatment and at different curing times,and an indoor evaluation method for the bonding quality of the second interface of cementing was established.The results show that the quality of the bonding of the second interface of cementing is closely related to the cleanliness of the bonding surface and the curing time.The less mud cake there is at the bonding surface,the longer the curing time,the higher the shear bonding strength,the greater the…