Nitrogen Lift : Nitrogen lifting is an operation commonly used...

Nitrogen Lift : Nitrogen lifting is an operation commonly used to enable a well to flow initially or bring a previously flowing well back on production. The nitrogen is simply used as a means of unloading and under-balancing the well to a situation where it will flow naturally from its own inherent reservoir pressure. ??Through a simple calculation, with the known reservoir pressure and weight of the completion fluid in the well, the amount of overbalance can be calculated and the respective minimum depth of lift pinpointed