Mobile robotic systems for sealing of underwater wells in case of oil and gas blowouts

The problem of sealing of emergency underwater flowing oil ang gas wells using mobile robotic systems is discussed in the article. Technologies for installing preventers on gushing wells using the underwater mobile robots (platforms) and pontoons using robotic anchor-cable system are proposed. The use of underwater mobile platforms with walking propulsions is considered. Using an orthogonal walking mover provides the necessary passability and maneuverability of the platform when working in an underwater field, positioning accuracy at the wellhead, and installation of a preventer without a crane device. The results of computer modeling of a blowing gas at underwater fields are presented. The advantages of the proposed sealing technologies are the ability to work in conditions of ice cover and significant sea disturbance, reduction of the duration of work to eliminate an accident at an underwater oil and gas field and the possibility of continuing oil and gas production. The main directions for future researches are outlined.