Scuttle for the monitoring and inspection of a flexible riser
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-033/038
E21B-033/035
E21B-033/076
E21B-043/01
E21B-017/01
E21B-047/00
E21B-017/00
출원번호
US-0272275
(2014-05-07)
등록번호
US-9022123
(2015-05-05)
우선권정보
BR-1100228 (2011-02-18)
발명자
/ 주소
Campello, George Carneiro
Morikawa, Sergio Ricardo Kokay
출원인 / 주소
Petroleo Brasileiro S.A.-Petrobras
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
0인용 특허 :
38
초록▼
The present invention relates to an apparatus for inspecting and monitoring flexible collection and production lines in real time, rendering possible constant tracking of the condition of the internal structures of a flexible riser, specifically of the tensile armor thereof. The device may be provid
The present invention relates to an apparatus for inspecting and monitoring flexible collection and production lines in real time, rendering possible constant tracking of the condition of the internal structures of a flexible riser, specifically of the tensile armor thereof. The device may be provided at any point along the riser ensuring the establishment of an area of physical and visual contact directly over the surface of the tensile armor of the riser for the installation of equipment for analysis, which area permits further accesses without destroying the sealing of the chamber there formed.
대표청구항▼
1. A scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser, the scuttle comprising: an inspection chamber comprising at least two structural cells;an inspection window being attached over at least one of said structural cells and being installed directly o
1. A scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser, the scuttle comprising: an inspection chamber comprising at least two structural cells;an inspection window being attached over at least one of said structural cells and being installed directly on the external tensile armour layer of the flexible riser, wherein the flexible riser comprises an external layer radially outwardly of the external tensile armour layer where the inspection window is not installed, such that the inspection window allows for monitoring of the external tensile armour layer;the inspection chamber being attached via a watertight connection to the flexible riser or riser accessory, the watertight connection being configured to interact with a first extremity of the inspection chamber. 2. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 1, wherein the watertight connection comprises an expansion sleeve located at the first extremity of inspection chamber, for supporting and separating the external layer of the flexible riser from the external tensile armour layer of the flexible riser. 3. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 2, wherein said watertight connection comprises a sealing ring, and the watertight connection is further configured so that the sealing ring is made to compress, in use, the external layer of the flexible riser against the expansion sleeve. 4. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 3, wherein said watertight connection further comprises an activation flange superimposed on said sealing ring, to compress the sealing ring. 5. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 4, wherein the first extremity of the inspection chamber is provided with an internal bevel that receives the sealing ring. 6. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according claim 2, wherein the inspection chamber comprises a second extremity, wherein said watertight connection is provided at both the first and second extremities of the inspection chamber. 7. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 1, wherein said watertight connection comprises the first extremity of the inspection chamber configured to seal against a flexible riser end fitting. 8. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 7, wherein the watertight connection comprises a sealing ring, the scuttle further comprising an internal bevel provided in said flexible riser end fitting, the internal bevel being configured to receive said sealing ring. 9. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 8, wherein an outer casing of the watertight connection interacts with said sealing ring to establishing a seal. 10. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 1, wherein each of the at least two structural cells comprises at least two spars aligned with an axis of the flexible riser, each of the at least two spars having extremities, and each of the extremities of said at least two spars are connected to a structural ring so as to form said structural cells. 11. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 10, wherein a sealing ring is provided on the internal face of the structural ring. 12. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 11, wherein the structural ring is configured to be connected directly to an outer casing of a flexible riser end fitting by the structural ring being threaded. 13. The scuttle for the monitoring and inspection of external tensile armour layer of a flexible riser according to claim 12, wherein the sealing ring also seals a zone filled with resin of the flexible riser end fitting. 14. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 1, wherein the scuttle is configured such that, in use, on connecting the inspection window over at least one of the at least two structural cells an empty space is formed over the surface of the flexible riser. 15. The scuttle for the monitoring and inspection of an external tensile armour layer of a flexible riser according to claim 1, further comprising said flexible riser, and wherein the scuttle is configured to allow inspection of internal layers of said flexible riser via said inspection window.
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