Mathematical modeling of the stress-strain state of the annular preventer seal using the theory of reinforced shells

Abstract Management of wells in the process their construction is one important factors ensuring safety technological process. Blowout equipment, which includes annular preventers, used to control wells. This applies oil and gas wells, or that provide degassing coal seams reduce gas-dynamic activity. For purpose safe long-term operation preventers on basis theory thick-walled combined reinforced shells carried-out analytical research, mathematical model for research a stress-strain condition seal an preventer has been offered. Taking into consideration real design, modeled by rubber shell, circular direction frames, longitudinal metal stringers. The provides determining stiffness, internal force stresses transverse sections rubber-metal seal, considering peculiarities its operation. At same time, conditions interaction base with pipe, as well action sealing pressure under operating conditions. use proposed reduces costs experimental will contribute reliability simulation modeling results. advantage method determination calculated loads at different points existing state dangerous zones influence In meantime, prerequisites have created expanding possibilities designing structural elements increased operational characteristics. practical value obtained results determined possibility using them ensure performance both stage design during