Air Drilling Associates has extensive experience in selecting those chemicals that provide the best performance, through extensive laboratory testing and field trials. The current range of chemicals includes the following:
- ADA DrillFoam : Foaming agent
- ADA DrillFoam HS: Foaming agent for KCl mud systems
- ADA DrillFoam CW: Foaming agent for arctic environments
- ADA Inhibi-Foam : Corrosion inhibiting foaming agent
- ADA De-Foam : Defoamer
- ADA Estadril F100 : Recyclable foaming system
- ADA Im-Hib Plus : Filming amine corrosion inhibitor
ADA Drill-Foam is a biodegradable sodium alcohol foaming agent ideal for geothermal drilling because it is very tolerant to salt (brine) water flows. Independent tests and experience have shown that the performance of ADA Drill-Foam is even enhanced with additions of salt, whereas conventional foaming agents very quickly start to deteriorate and become ineffective (see below). To quickly suppress the foam returns from the well, small amounts of ADA De-Foam can be injected as a fine mist directly into the foam returns.
Similarly, ADA recently discovered that conventional filming amine corrosion inhibitors actually reduce the performance of foaming agents, since conventional filming amine corrosion inhibitors are cationic, whereas foaming agents are anionic. This is particularly evident at (accidentally) higher inhibitor concentrations. ADA Im-Hib Plus however is an anionic filming amine corrosion inhibitor that is stable at high downhole circulating temperatures, and has been found (at the correct dosage) to even slightly boost the performance of ADA Drill-Foam.
ADA Inhibi-Foam is drilling foam agent with a filming amine corrosion inhibitor mixed in at the correct dosage, ensuring that metal components are always properly protected and preventing (accidental) overdosage and expense. The use of a single formula also simplifies logistics and saves cost to the client, especially in remote locations.
