Double-sealing bridge type well cementation device

The utility model relates to the technical field of oil field cementing well cementation, in particular to a double-sealing bridge type well cementation device which can better solve the problems that well cementation is conducted on the upper portion and the lower portion of an oil layer at the same time and the position of the oil layer is not subjected to well cementation, and therefore pollution to the oil layer is reduced. Automatic setting can be achieved by starting a pump to circulate slurry, so that simultaneous packing and well cementation of the upper portion and the lower portion of an oil layer are achieved, pollution to the oil layer is reduced, the outer portion of an oil-string casing is not blocked by a cement sheath, only the casing needs to be shot through during perforation, the perforation quality is improved, and the advantages of being easy to operate, safe, reliable and the like are achieved. 本实用新型涉及油田注水泥固井技术领域，具体为一种双封桥式固井装置，可以更好地解决油层上下同时固井，并保持油层位置不固井的问题，从而减少对油层的污染，本实用新型使用时通过完井管柱下至设计位置