 |
 |
|
 |
 |
Liquefied CO2 Injection
A further method to open rock fractures and stimulate
production is the injection of Carbon Dioxide CO2.
One approach is to inject liquid CO2 into the
producing formation, which has been isolated by
inflatable packers. The introduction of the liquid CO2
freezes the surrounding water, opening nearby
fractures. As the liquid CO2 becomes a gas, it
expands into the formations, opening them further.
This method is an improvement on an earlier method
inserting dry ice into the production zone, which had
been isolated.
This process too is found to work best when coupled
with surging, air development or chemical
rehabilitation as the final step to maximize
development.
Vibratory
Uses of sonic technology have been transferred from
drilling into well development techniques. One
method is using high velocity shock waves for the
removal of deposits around borehole walls and well
screens. Once shock waves loosen, the hardened
material, jets of fluid at high velocity are directed back
and forth over the shock wave area. This dual
approach of shock wave and jetting deep cleans
productive aquifers.
WELL
DEVELOPMENT
|
 |
|