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Major Chinese Oil Company Expedites Equipment Inspections via RFID
The firm's inspectors and oil workers are using Xerafy passive UHF tags and ATID handheld readers to locate transformers, as well as view data about them and update maintenance records.
When the company approached VictorySoft, the IT technology firm tested EPC ultrahigh-frequency (UHF) RFID tags from five different companies, according to Xu Haiting, VictorySoft's general manager of technical development. The tags that performed the best, Xu says, were Xerafy Cargo Trak tags, which could be affixed to assets by means of adhesive, rivets or welding. The oil company tested the tags on its site, providing inspectors and other field workers with ATID AT870 handheld RFID readers with which to interrogate the tags while searching for specific equipment. The oil company tagged a few items before determining that the technology worked, and then began applying the tags to more than 30,000 transformers used to provide dependable electricity distribution to the oil field. The oil firm chose to tag transformers first, due to their need for regular inspections and calibration in order to ensure their proper operation.
While searching for an item, a worker walks around the oil field, during which the handheld receives the unique ID transmitted by each tag from as far away as 12 meters (39 feet). The handheld then employs a Wi-Fi connection to forward each ID to VictorySoft software hosted on the oil company's back-end server, and to access information regarding the tagged item, including a description and its inspection and maintenance history. If performing an inspection or calibration, the worker can then input the time and the type of work being carried out, and that information is stored along with the unique ID number encoded to the tag, thereby creating a permanent record that company management can view and, if necessary, share with government inspectors.
Since its installation in 2013, the system has made it possible for inspectors to conduct their work more quickly, without the need to search as long for transformers, or to use paper and pen. "Workers can perform their job more effectively," Xu states, "and save time by not having to write down the maintenance history."
According to Xu, the oil company plans to expand the RFID system's use to hundreds of categories of assets on its oil field. However, he says, specific information regarding how many tags will be used—or when—is not yet available.
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