BOP heating methods and systems and heat exchange units
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-036/00
F28D-015/00
출원번호
US-0183330
(2011-07-14)
등록번호
US-8726998
(2014-05-20)
발명자
/ 주소
Colquhoun, Jim
Robb, Sam
출원인 / 주소
Baker Hughes Incorporated
대리인 / 주소
Parsons Behle & Latimer
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A BOP heating method includes operating a coiled tubing unit (CTU) using hydraulic fluid. The fluid is supplied from the CTU to an exchange tube and returned from the exchange tube to the CTU. The method includes transmitting heat from the fluid to an inner plate. Heat is transmitted from the inner
A BOP heating method includes operating a coiled tubing unit (CTU) using hydraulic fluid. The fluid is supplied from the CTU to an exchange tube and returned from the exchange tube to the CTU. The method includes transmitting heat from the fluid to an inner plate. Heat is transmitted from the inner plate to a BOP on which the inner plate is temporarily mounted. A BOP heating system includes a CTU configured to use hydraulic fluid, a supply tube configured to supply fluid from the CTU to an exchange tube, and a return tube configured to return fluid from the exchange tube to the CTU. A BOP heat exchange unit includes an outer plate and an inner plate, an exchange tube between the outer plate and the inner plate, and a heat spreading material between the exchange tube and the inner plate. The exchange unit lacks any electrical component.
대표청구항▼
1. A BOP heating method comprising: operating a coiled tubing unit using a hydraulic fluid in a hydraulically manipulated component, the hydraulic fluid increasing in temperature with use and exceeding an ambient temperature;supplying the hydraulic fluid from the coiled tubing unit through a supply
1. A BOP heating method comprising: operating a coiled tubing unit using a hydraulic fluid in a hydraulically manipulated component, the hydraulic fluid increasing in temperature with use and exceeding an ambient temperature;supplying the hydraulic fluid from the coiled tubing unit through a supply tube to an exchange tube and returning the hydraulic fluid from the exchange tube through a return tube to the coiled tubing unit;transmitting heat from the hydraulic fluid through a wall of the exchange tube and through a heat spreading material to an inner plate, the heat spreading material being between the exchange tube and the inner plate and the exchange tube being arranged in a serpentine form between the inner plate and an opposing outer plate;transmitting heat from the inner plate to a BOP on which the outer plate, the exchange tube, the heat spreading material, and the inner plate are temporarily mounted, a control opening through the outer plate, the inner plate, and the heat spreading material exposing a control port of the BOP; andincreasing a temperature of the BOP to above ambient temperature using the heat from the hydraulic fluid. 2. The method of claim 1 wherein the BOP control port comprises a plurality of control ports including a kill port and an actuator port and wherein the control opening exposes the kill port or the actuator port. 3. The method of claim 1 wherein the hydraulic fluid in the supply tube exhibits a temperature of less than 130° F. 4. The method of claim 1 wherein the outer plate, the exchange tube, the heat spreading material, and the inner plate are fastened together to form an exchange unit. 5. The method of claim 4 wherein the exchange unit does not include any electrical component. 6. The method of claim 4 wherein the exchange unit is temporarily mounted on one side the BOP, wherein an additional exchange unit comprises an additional outer plate, an additional exchange tube, an additional heat spreading material, and an additional inner plate fastened together and is temporarily mounted on another side of the BOP, and wherein the coiled tubing unit supplies the hydraulic fluid both to the exchange unit and to the additional exchange unit. 7. The method of claim 6 wherein the one side of the BOP opposes the other side of the BOP and wherein the exchange unit and the additional exchange unit are configured to remain installed on the BOP during maintenance of the BOP. 8. The method of claim 1 wherein transmitting the heat from the inner plate to the BOP occurs mostly through conduction. 9. A BOP heating system comprising: an outer plate and an opposing inner plate;an exchange tube arranged in a serpentine form between the outer plate and the inner plate;a heat spreading material between the exchange tube and the inner plate;a control opening through the outer plate, the inner plate, and the heat spreading material, the control opening being configured to expose a BOP control port;a coiled tubing unit configured to use hydraulic fluid; anda supply tube configured to supply hydraulic fluid from the coiled tubing unit to the exchange tube and a return tube configured to return hydraulic fluid from the exchange tube to the coiled tubing unit. 10. The system of claim 9 further comprising a BOP, the BOP control port comprising a plurality of control ports including a kill port and an actuator port, wherein the outer plate, the exchange tube, the heat spreading material, and the inner plate are mounted on the BOP and wherein the control opening exposes the kill port or the actuator port. 11. The system of claim 9 wherein the heat spreading material is also between the outer plate and the exchange tube, wherein the outer plate, the exchange tube, the heat spreading material, and the inner plate are fastened together to form an exchange unit and wherein the inner plate, the heat spreading material, and the exchange tube each have a thermal conductivity at 68° F. of at least 7 BTU/(hr-° F.-ft) (12 W/(m-K)). 12. The system of claim 11 further comprising a BOP, wherein the inner plate of the exchange unit has an exterior surface exhibiting an area and wherein most of the area of the exterior surface of the inner plate directly contacts the BOP. 13. The system of claim 11 wherein the exchange unit does not include any electrical component. 14. The system of claim 11 further comprising a BOP and an additional exchange unit including an additional outer plate, an additional exchange tube, an additional heat spreading material, and an additional inner plate fastened together, wherein the exchange unit is removably mounted on one side the BOP and the additional exchange unit is removably mounted on another side of the BOP. 15. The system of claim 14 wherein the one side of the BOP opposes the other side of the BOP and wherein the exchange unit and the additional exchange unit are configured to remain installed on the BOP during maintenance of the BOP. 16. The system of claim 11 wherein the exchange unit exhibits a size and shape configured to substantially cover one side of a BOP outer shell.
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