Oilfield conduit leakage detection system
US9846103B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2011 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Apr 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for identifying and measuring the quantity of leakage from a conduit used in the conveyance of a fluid, such as a hydrocarbon fluid, for example oil, or a gas, such as natural gas. The system includes a measurement device configured to measure a distributed temperature along a length of the conduit. The system further includes a processor configured to calculate a change in volume of the fluid in the conduit for each of a plurality of sections of the length of the conduit based on the distributed temperature. The processor is further configured to calculate a correction factor based on the change in volume of the fluid. The processor is also configured to calculate a corrected mass-balance differential using the correction factor, and compare the corrected mass-balance differential to a predetermined leakage threshold to identify whether a leak exists in the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.