Anecdotal Histories

De-watering after Frac:

A customer has been spending up to 50 days trying to swab in wells in the Woodford shale play after fracing. After starting to use Nitro-Lift®, the wells are blown-in and start continuous flow on their own in just ten days.

Gas Lift Operations:

A customer had a field operation on gas lift and the gas supply well went down, thereby shutting down production in the field. Nitro-Lift® was called to the field to generate supply gas. Within two hours, two of the seven wells were back on production and in 24 hours the whole field was producing. In this economically marginal field, the cost of getting back on production was about one-third of what lost production revenues would have been, and the customer was able to maintain a stable production revenue flow through the repair period.

In a traditionally marginal field on the Gulf Coast, the gas cap depleted and the production dropped. Nitro-Lift® designed a system and supplied nitrogen to re-pressure the gas cap. Production in the field increased from 2 to 5 bopd. Now, Nitro-Foam™ units could supply foam and further increase oil recovery.

In a number of Gas-Lift systems, Nitro-Lift® has been asked to furnish nitrogen for supply gas for starting up. A steady supply of make-up gas is needed to commence compressor operations. It is common in many fields for the volume of gas at startup to be insufficient to operate the compression system. The nitrogen generation systems can be used to initially provide the volume of gas required by the compressors to start lifting operations.

Drilling and Workover Operations:

Recently in a drilling operation, the drill-string became differentially stuck. The operator called out a major pressure control company, a wireline company, pump trunks, and other associated equipment to try to free the pipe. They tried for almost eight days but were unsuccessful. Nitro-Lift® offered to use one of its generation units to free the pipe utilizing a procedure developed over many years working with various stuck pipe situations. Nitro-Lift® alternately applied pressure to the annulus and then to the tubing and unloaded the well to the reserve pit. The pipe became free and the rig returned to normal operations in less than 24 hours.