System and method for testing fluid seals for leaks
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01M-003/28
E21B-047/117
E21B-033/06
출원번호
US-0315118
(2011-12-08)
등록번호
US-9031789
(2015-05-12)
발명자
/ 주소
Levy, David
출원인 / 주소
Petrotechnologies, Inc.
대리인 / 주소
Buskop Law Group, PC
인용정보
피인용 횟수 :
1인용 특허 :
11
초록▼
A system and method for testing a fluid seal in a device can include pumping fluid to the device and a control device simultaneously, while measuring the pressure of the fluid pumping to both devices. A change in volume of the fluid in the control device can be initiated, a change in pressure differ
A system and method for testing a fluid seal in a device can include pumping fluid to the device and a control device simultaneously, while measuring the pressure of the fluid pumping to both devices. A change in volume of the fluid in the control device can be initiated, a change in pressure difference associated with the change in volume can be determined, and a leak test ratio can be formed therefrom. Changes in the pressure difference can be used to determine the presence of fluid leaks, which can be presented as test results to users connected to a network. A leak volume can be determined using the change in pressure difference and the leak test ratio.
대표청구항▼
1. A method for testing a device for a fluid leak, the method comprising: a. connecting the device to a pump connected to a reservoir of fluid, wherein the device has a fluid seal;b. connecting a control device to the pump;c. simultaneously pumping the fluid into the device and the control device;d.
1. A method for testing a device for a fluid leak, the method comprising: a. connecting the device to a pump connected to a reservoir of fluid, wherein the device has a fluid seal;b. connecting a control device to the pump;c. simultaneously pumping the fluid into the device and the control device;d. detecting a pressure of the fluid flowing to the control device, forming a control response;e. detecting a pressure of the fluid flowing to the device, forming a test response;f. determining a difference between the test response and the control response, forming a pressure difference;g. adjusting a volume of the fluid in the control device by a known volume;h. determining a drop in the pressure difference associated with the known volume;i. forming a leak test ratio by dividing the known volume by the drop in the pressure difference; andj. determining if the test response imitates the control response by determining if a change in the pressure difference occurs, wherein: (i) if imitation is determined, providing a determination that no leak in the fluid seal of the device is present; or(ii) if imitation is not determined, determining a leak volume by multiplying a pressure drop associated with the change in the pressure difference by the leak test ratio, and providing a determination that a leak in the fluid seal of the device is present. 2. The method of claim 1, further comprising determining a time period associated with the leak volume and dividing the leak volume by the time period, forming a leak rate. 3. The method of claim 1, wherein the volume of the fluid in the control device is adjusted using a stem of a valve, wherein the valve is in fluid communication between the pump and the control device, and wherein the stem is configured to be rotated to provide the known volume. 4. The method of claim 1, further comprising detecting the pressures using pressure transducers, wherein the pressure transducers are in communication with a processor, wherein the processor is in communication with a data storage, and wherein the data storage has computer instructions for storing the detected pressures. 5. The method of claim 4, further comprising using computer instructions in the data storage to: a. form the test response and the control response;b. form the pressure difference;c. determine the drop in the pressure difference associated with the known volume;d. form the leak test ratio;e. determine if the test response imitates the control response;f. provide the determination that no leak in the fluid seal of the device is present, or determining the leak volume and provide the determination that the leak in the fluid seal of the device is present;g. store information about the fluid in the data storage;h. store a value for the known volume in the data storage; andi. store a value representing the known volume in the data storage. 6. The method of claim 1, further comprising forming a plot of the pressure difference over time. 7. The method of claim 6, further comprising: a. using a means for communication to transfer the plot of the pressure difference over time to a user, wherein the means for communication is in communication with the processor, the data storage, or combinations thereof;b. presenting the plot of the pressure difference over time as an executive dashboard to the user on a client device, a display, or combinations thereof; orc. combinations thereof. 8. The method of claim 1, wherein: a. the fluid is a member of the group consisting of: water, compressed air, oil, compressed nitrogen, compressed helium, another compressed inert gas, another gas, another fluid, and combinations thereof;b. the fluid is at a pressure ranging from 14 psi to 40,000 psi;c. the fluid is pumped to the device and the control device at a pressure ranging from 5000 psi to 20,000 psi ord. combinations thereof. 9. The method of claim 1, further comprising providing identical pressures to the device and the control device using the fluid. 10. The method of claim 1, wherein the device is a blowout preventer, a connector, or a plurality of connectors for a well. 11. The method of claim 1, wherein the fluid leak has a rate of less than 1×10−6 cm3 per minute. 12. The method of claim 1, wherein the known volume ranges from 1×10−6 gallons to 1 barrel. 13. The method of claim 1, further comprising stacking or connecting multiple devices together and simultaneously fluid seals of the multiple devices. 14. A system for testing a device for a fluid leak, the system comprising: a. a pump connected to a reservoir of fluid, wherein the pump is configured to be connected to a device having a fluid seal;b. a control device in fluid communication with the pump, wherein the pump is configured to simultaneously pump the fluid into the device and the control device;c. a first pressure transducer disposed between the pump and the control device for detecting a pressure of the fluid in the control device to form a control response;d. a second pressure transducer disposed between the pump and the device for detecting a pressure of the fluid in the device form a test response;e. a processor and a data storage in communication with the first pressure transducer and the second pressure transducer, wherein the processor is configured to receive the a control response and the test response for storage in the data storage;f. computer instructions in the data storage to instruct the processor to determine a difference between the test response and the control response to form a pressure difference;g. a valve in fluid communication between the pump and the control device, wherein the valve comprises a stem configured to adjust a volume of the fluid in the control device by a known volume;h. computer instructions in the data storage to instruct the processor to determine a drop in the pressure difference associated with the known volume;i. computer instructions in the data storage to instruct the processor to form a leak test ratio by dividing the known volume by the drop in the pressure difference; andj. computer instructions in the data storage to instruct the processor to determine if the test response imitates the control response by determining if a change in the pressure difference occurs, wherein: (i) if imitation is determined, the processor is configured to use computer instructions in the data storage to provide a determination that no leak in the fluid seal of the device is present; or(ii) if imitation is not determined, the processor is configured to use computer instructions in the data storage to determine a leak volume by multiplying a pressure drop associated with the change in the pressure difference by the leak test ratio, and to provide a determination that a leak in the fluid seal of the device is present. 15. The system of claim 14, further comprising computer instructions in the data storage to instruct the processor to determine a time period associated with the leak volume and dividing the leak volume by the time period to form a leak rate. 16. The system of claim 14, further comprising in the data storage: a. information about the fluid;b. a value for the known volume; andc. a value representing the known volume. 17. The system of claim 14, further comprising computer instructions in the data storage to instruct the processor to form a plot of the pressure difference over time. 18. The system of claim 17, further comprising: a. a means for communication in communication with the processor and the data storage for transferring the plot of the pressure difference over time to a user;b. computer instructions in the data storage to instruct the processor to present the plot of the pressure difference over time as an executive dashboard to the user on a client device, a display, or combinations thereof; orc. combinations thereof. 19. The system of claim 14, wherein: a. the fluid is a member of the group consisting of: water, compressed air, oil, compressed nitrogen, compressed helium, another compressed inert gas, another gas, another fluid, and combinations thereof;b. the fluid is at a pressure ranging from 14 psi to 40,000 psi; orc. combinations thereof. 20. The system of claim 14, wherein the device is a blowout preventer, a connector, a plurality of connectors, or multiple devices stacked or connected for a well.
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이 특허에 인용된 특허 (11)
Filippi Ernest A. (Porterville CA) Miller Kenneth L. (San Pedro CA), Automatically calibrated pressurized piping leak detector.
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