General Integrated Services provides nitrogen pumping services for several well applications including Nitrogen Lifting, Energizing fluids, and Foam diversion:

Nitrogen Lifting: 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.

The same basic principle is applied to a situation where a well is intentionally killed, (i.e., scale squeezes or stimulation treatments) or where a well has a tendency to kill itself (i.e., platform shutdowns).

Energizing fluids: Energizing fluids is generally a technique that allows pumping different fluids and acid systems into a well while maintaining the overall hydrostatic pressure of the fluid column in the well bore below reservoir flowing pressure. This shall allow the well to flowback immediately after completion of the job without the need to a lift the well with coiled tubing and nitrogen. Energizing acid fluids can also help deeper acid penetration and retardation of its reaction rate.

Foam Diversion: Foamed base fluids (aqueous based) using a nitrogen gas and foaming agents is a well-known technique to create downhole foam pads for diversion purposes. The foam diverter is pumped in staged slugs between main acid stages to divert acid into tighter/non treated zones.

Nitrogen High Pressure pumping includes the following services:

• Nitrogen lift
• Energized stimulation acid system
• Foam diversion for matrix stimulation
• Nitrogen purging
• Well under-balancing
• For under-balance perforations, fishing operation, etc.