Patent ID: 9133701
Filing Date: 2015-09-15
Classification: E21B

Abstract:
1. A method of performing operations of an oilfield having at least one wellsite, each at least one wellsite having a wellbore operatively connected to a pressurized conduit and penetrating a subterranean reservoir of a subterranean formation for extracting fluid from or injecting fluid to the subterranean reservoir, the method comprising: operating a pressure vessel selected from a first pressure vessel and a second pressure vessel in a first operating cycle, comprising: operating the other pressure vessel in a second operating cycle, comprising: wherein each of the first and second pressure vessels alternates between the first and second operating cycle, and wherein the switching of the first and second pressure vessels between the first and second operating cycles is synchronized such that one of the first and second pressure vessels is operating in the first operating cycle while the other pressure vessel is operating in the second operating cycle.