Apparatus and method for offloading a hydrocarbon fluid
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B67D-007/04
B67D-009/00
B63B-027/34
B63B-027/24
출원번호
US-0236262
(2011-09-19)
등록번호
US-9004102
(2015-04-14)
발명자
/ 주소
Foo, Kok Seng
Mortensen, Asbjørn
Tan, Alex Kah Keong
Wong, Toh Tung
Chong, Wen Sin
Lim, Teng Kiat
출원인 / 주소
Keppel Offshore & Marine Technology Centre Pte Ltd
대리인 / 주소
White, John P.
인용정보
피인용 횟수 :
0인용 특허 :
16
초록▼
Disclosed are various apparatus and method for transferring a hydrocarbon fluid between two bodies. To this purpose, a transfer skid and transfer hoses are moved from a first body to a second body to be installed thereupon to provide fluid communication between the two bodies. Offloading of hydrocar
Disclosed are various apparatus and method for transferring a hydrocarbon fluid between two bodies. To this purpose, a transfer skid and transfer hoses are moved from a first body to a second body to be installed thereupon to provide fluid communication between the two bodies. Offloading of hydrocarbon fluid may then take place between the two bodies. Emergency release operation may be triggered during the offloading, where the transfer hoses are disconnected from the transfer skid, and are returned to the first body. Various features of the transfer skid and associated apparatus allow the transfer skid to be installed on the second body with improved mating connections, transfer hoses to be returned to the first body after offloading operation without hydrocarbon fluid leakage, and transfer hoses to disconnect with speed and safety during emergency release operation.
대표청구항▼
1. An offloading apparatus for facilitating hydrocarbon fluid transfer between two bodies, comprising: a transfer skid which is pre-assembled prior to moving from a first body to a second body to be installed thereupon, the transfer skid comprising: a skid frame;a plurality of pipes, each of the pip
1. An offloading apparatus for facilitating hydrocarbon fluid transfer between two bodies, comprising: a transfer skid which is pre-assembled prior to moving from a first body to a second body to be installed thereupon, the transfer skid comprising: a skid frame;a plurality of pipes, each of the pipes having a first end and a second distal end;a coupler provided at the first end of the each of the pipes to connect to the second body upon installing the transfer skid;an emergency release coupling provided at the second end of the each of the pipes; anda transfer hose connected between the emergency release coupling and the first body,wherein the pipes are separately attached to the skid frame by at least two adjustable support wires;wherein one end of said support wire is adjustably attached to a portion of the pipe adjacent the first or second end of the pipe to allow the pipes to be repositioned relative to the skid frame and independently of one another for improving mating connection of the coupler of each of the pipes with a corresponding flange at the second body. 2. The offloading apparatus of claim 1, wherein the coupler and the emergency release coupling are arranged spaced apart so that upon installing the transfer skid onto the second body, the coupler is disposed inboard the second body while the emergency release coupling is disposed outboard of the second body. 3. The offloading apparatus of claim 2, wherein the emergency release coupling and an adjacent end of the transfer hose connected thereto are disposed in a vertical arrangement, andwherein the emergency release coupling disconnects the transfer hose from the transfer skid which is installed at the second body by way of detaching a part of the emergency release coupling, and allowing the detached part of the emergency release coupling, together with the transfer hose connected thereto, to fall away from the transfer skid due to gravity force. 4. The offloading apparatus of claim 3, wherein the detached part of the emergency release coupling is supported by a lifting device, which is provided on the first body, to limit the fall of the detached part of the emergency release coupling. 5. The offloading apparatus of claim 4, wherein the transfer hose maintains a catenary form during the fall of the detached part of the emergency release coupling by way of an attachment of the detached part of the emergency release coupling to a spreader beam which is supported by the lifting device. 6. The offloading apparatus of claim 1, wherein the transfer skid further comprises a swivel which is connected between the emergency release coupling and the coupler, wherein after installing the transfer skid on the second body, the transfer skid is rotatable relative to the second body by way of the swivel. 7. The offloading apparatus of claim 1, wherein the transfer skid further comprises at least one valve connected between each of the pipes and the coupler, wherein the at least one valve is closed during non-emergency release to allow the transfer skid, together with the transfer hose, return to a parking position on the first body for gravity-based draining without hydrocarbon fluid leakage through the coupler during the return to the first body. 8. The offloading apparatus of claim 1, wherein the transfer skid further comprises at least one valve which is integrated with the coupler and the each of the pipes, wherein the at least one valve is closed during non-emergency release to allow the transfer skid, together with the transfer hose, return to a parking position on the first body for gravity-based draining without hydrocarbon fluid leakage through the coupler during the return to the first body. 9. The offloading apparatus of claim 1, wherein the transfer skid is to receive at least one guide wire from the first body prior to installing the transfer skid onto the second body, wherein the guide wire is connected to the second body for guiding the transfer skid towards the second body,wherein the transfer skid further comprises at least one shock absorber to dampen impact during installing of the transfer skid onto the second body, andwherein the transfer skid is to receive a positioning device from the second body to allow adjustment of the transfer skid prior to locking the coupler. 10. The offloading apparatus of claim 1, wherein the transfer skid is moved from the first body to the second body by way of a lifting device provided on the first body, and a guiding device comprising of a plurality of winches and guide wires provided on the first body. 11. The offloading apparatus of claim 10, wherein the lifting device is one of a crane and a platform arrangement which is configured to move in a longitudinal and a transverse direction. 12. A method of transferring hydrocarbon fluid, the method comprising: moving a pre-assembled transfer skid from a first body to a second body, wherein the transfer skid comprises: a skid frame;a plurality of pipes, each of the pipes having a first end and a second distal end;a coupler provided at the first end of the each of the pipes to connect to the second body upon installing the transfer skid;an emergency release coupling provided at the second end of the each of the pipes; anda transfer hose connected between the emergency release coupling and the first body,wherein the pipes are separately attached to the skid frame by at least two adjustable support wires;wherein one end of said support wire is adjustably attached to a portion of the pipe adjacent the first or second end of the pipe to allow the pipes to be repositioned relative to the skid frame and independently of one another for improving mating connection of the coupler of each of the pipes with a corresponding flange at the second body;manipulating the pipes independently of one another to position the pipes on the second body;installing the transfer skid onto the second body to allow fluid communication between the first and the second body; andtransferring hydrocarbon fluid from the first body to the second body or vice versa. 13. The method of claim 12, wherein the coupler and the emergency release coupling are arranged spaced apart, the method further comprising: after installing of the transfer skid, having the coupler disposed inboard the second body and the emergency release coupling disposed outboard of the second body. 14. The method of claim 13, further comprising: disconnecting the transfer hose from the transfer skid which is installed at the second body by detaching a part of the emergency release coupling, wherein the emergency release coupling and an adjacent end of the transfer hose connected thereto are disposed in a vertical arrangement prior to disconnecting; andallowing the detached part of the emergency release coupling, together with the transfer hose connected thereto, to fall away from the transfer skid due to gravity force. 15. The method of claim 14, further comprising: limiting the fall of the detached part of the emergency release coupling by having the detached part of the emergency release coupling supported by a lifting device which is provided on the first body. 16. The method of claim 15, further comprising: having the transfer hose maintain a catenary form during the fall of the detached part of the emergency release coupling by way of an attachment of the detached part of the emergency release coupling to a spreader beam which is supported by the lifting device. 17. The method of claim 12, further comprising: after installing the transfer skid on the second body, allowing the transfer skid to rotate relative to the second body by way of a swivel which is connected between the each of the pipes and the emergency release coupling. 18. The method of claim 12, further comprising: during non-emergency release, closing at least one valve, which is connected between the each of the pipes and the coupler, to prevent hydrocarbon fluid leakage through the coupler; andreturning the transfer skid, together with the transfer hose, to a parking position on the first body for gravity-based draining. 19. The method of claim 12, further comprising: during non-emergency release, closing at least one valve, which is integrated with the coupler, to prevent hydrocarbon fluid leakage through the coupler; andreturning the transfer skid, together with the transfer hose, to a parking position on the first body for gravity-based draining. 20. The method of claim 12, further comprising: prior to installing the transfer skid onto the second body, having the transfer skid receive at least one guide wire from the first body wherein the guide wire is connected to the second body for guiding the transfer skid towards the second body;dampening impact during installing of the transfer skid onto the second body by way of at least one shock absorber provided at the transfer skid; andadjusting the transfer skid prior to locking the coupler by way of a positioning device. 21. The method of claim 12, further comprising: moving the transfer skid from the first body to the second body by way of a lifting device provided on the first body, and a guiding device comprising of a plurality of winches and guide wires provided on the first body. 22. The method of claim 21, wherein the lifting device is one of a crane and a platform arrangement which is configured to move in a longitudinal and a transverse direction.
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