FIELD: oil and gas industry.
SUBSTANCE: invention relates to equipment of a subsea wellhead. A fastening device is suggested to secure a suspension device (36) in equipment (10) of the subsea wellhead, containing the first fasteners to secure the suspension device (36) in the first position, and the second fasteners to secure the suspension device (36) in the second position. Wherein the first fasteners are located, during use, with the creation of a fluid channel over the external surface of the seal of the suspension device (36) upon the suspension device (36) keeping in the first position such that the fluid has the possibility to flow around the external surface of the seal of the suspension device (36). And the second fasteners have a clamp to ensure sealing around the suspension device (36) upon the suspension device (36) securing in the second position such that the fluid has no possibility to flow around the external surface of the seal of the suspension device (36). Besides, the first fasteners are made with a possibility of the suspension device (36) securing in one longitudinal direction and with the possibility of the suspension device (36) movement in the second opposite longitudinal direction. Wherein the suspension device (36) contains multiple first longitudinal ribs located below the external seal surface, and multiple second longitudinal ribs located above the external seal surface such, that in the first position the fluid channel created over the external seal surface of the suspension device (36) is ensured through the said multiple first longitudinal ribs and through the said multiple second longitudinal ribs. Besides, equipment of the subsea wellhead is suggested, it contains fastening devices, and a method of fastening of the suspension device (36) inside the said equipment (10).
EFFECT: simple design and operation of the device due to the exclusion of the necessity to use remotely controlled valves.
15 cl, 12 dwg
