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3 results about "Drilling riser" patented technology
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A drilling riser is a conduit that provides a temporary extension of a subsea oil well to a surface drilling facility. Drilling risers are categorised into two types: marine drilling risers used with subsea blowout preventer (BOP) and generally used by floating drilling vessels; and tie-back drilling risers used with a surface BOP and generally deployed from fixed platforms or very stable floating platforms like a spar or tension leg platform (TLP).
CHAMBER CLOSURE CONNECTION FOR DRILL RISER AUXILIARY LINE
A drill string system for a riser includes a first part of the riser configured to connect to a first section of the riser, a second part of the riser configured to connect to a second section of the riser, and a chamber closure connection. The chamber closure connection includes a first part configured to connect to the first part of the riser and comprising a first coupling element, and a second part configured to connect to the second part of the riser and comprising a second coupling element. The chamber closure connection is configured to adjust between a locked and an unlocked configuration.
Owner:SCHLUMBERGER TECHNOLOGY BV
Modular quick spliceable drilling riser
ActiveCN224300823UWith modular designEquipped with multiple seals to prevent leakageDrilling rodsDrilling casingsRubber ringWell drilling
The application belongs to the technical field of drilling riser and discloses a modularized drilling riser capable of being quickly spliced, which comprises a water pipe body, an upper flexible joint is arranged on the upper end of the water pipe body, and a lower flexible joint is arranged on the lower end of the water pipe body, a multi-section water pipe body structure is arranged, and a buoyancy section is detachably arranged between the adjacent two sections of the water pipe body, the first connecting ring of the water pipe body is butted with the second connecting ring of the buoyancy section, the toothed rubber ring between the first connecting ring and the second connecting ring is engaged, at the moment, the two half rings of the clamp are combined, the annular groove formed in the inner side of the clamp is wrapped outside the first connecting ring and the second connecting ring, the slope rubber ring in the annular groove is abutted with the first connecting ring and the second connecting ring, and the corrosion-resistant sealing ring maintains the sealing property of the connection between the single section of the water pipe body and the buoyancy section.
Owner:XINHUAXIA INT ENERGY DEV CO LTD