Open AccessDesign changes of injection and supply wellhead fittings operating in winter conditions
Author(s) -
Л. С. Кулешова,
Р. Р. Кадыров,
В. В. Мухаметшин,
А. Р. Сафиуллина
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/560/1/012072
Subject(s) - wellhead , environmental science , marine engineering , petroleum engineering , engineering
The article deals with design changes in the existing injection well fittings. Disadvantages of the existing fittings are stagnant zones, considerable height and dimensions which cause problems of thermal insulation leading to rapid freezing of wellhead equipment in winter. At low temperatures, supply lines freeze and fail. The design of small-sized fittings of injection wells was developed. Elastic rubber cords, which absorb pressure caused by ice expansion due to water freezing and prevent rupture of the supply lines, are recommended to use.