FIELD: mining.
SUBSTANCE: invention refers to exploitation of under-water deposits of fluid and gaseous minerals, particularly, hydrocarbons; notably, invention refers to underwater process assemblies facilitating operation on shelf in the high seas at presence of floating ice massifs including icebergs and ice hummocks. The system consists of a protective conveyer assembled above a wellhead and made in form of a solid casing withstanding a load comparable to the critical load of ice massif impact. Also the casing is equipped with a row of sensors triggered at the load exceeding the critical one; the said sensors are electrically connected with shut-off automatic system operating upon receiving a signal from sensors of a well head sealing facility.
EFFECT: facilitation of mobility, upgraded technological effectiveness, economic efficiency and reliability of the structure.
2 cl, 1 dwg
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