1. Microbubble: new aphron drill-in fluid technique reduces formation damage in horizontal Wells, SPE 39589;Brookey;International Symposium on Formation Damage Control; 18-19 February; Lafayette, Louisiana, USA,1998
2. Aphron-base drilling fluid: evolving technologies for lost circulation control, SPE-71377;Ivan;SPE Annual Technical Conference and Exhibition 30 September-3 October; New Orleans, Louisiana,2001
3. Case history: drilling techniques used in successful redevelopment of low pressure H2S gas carbonate formation;Kinchen;SPE-67743-MS, SPE/IADC Drilling Conference 27 February–1 March Amsterdam, Netherlands,2001
4. Experience using microbubbles-aphron drilling fluid in mature reservoirs of Lake Maracaibo, SPE-73710;Ramirez;APE International Symposium and Exhibition on Formation Damage Control; 20-21 February; Lafayette, Louisiana, USA,2002
5. Adopting aphron fluid technology for completion and workover applications, SPE-112439;MacPhail;International Symposium and Exhibition on Formation Damage Control; 13-15 February; Lafayette, Louisiana, USA,2008