Sperry has been mentioned less than a dozen times throughout the RSS channels we monitor. This location appears to be especially popular on the channel 'Beautiful Bizarre Magazine' where it has less than a dozen mentions. As seen in the chart below, Sperry had the highest popularity figure in November, 2015.

?Location Mentions History
Recent News
Vibration Mechanisms In Drillstring by SperrySun

[...] is very important to learn and understand what each vibration mechanism is. This VDO created by Sperry Drilling Services well explains various of vibration modes that is happened downhole with the [...]

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