The method of wellhead thermal insulation in injection wells

摘要

The problem of wellhead freezing in winter exploitation session is discussed in the article. We discussed the different constructions of wellhead setup and marked their disadvantages because of their construction feature. Construction of wellhead equipment is suggested in article. We discussed different types of thermal isolation, which are used in heating up of injection wells. Their classification by seven characteristic is given the article. We described thermal isolation, which has liquid consistency, that serve to its easy application to a surface of any shape. Setting-up of cylinders from rock-wool on flange coupling and shut-off valves are given as an example.