E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/00 (2006.01) B01D 11/00 (2006.01) B01F 1/00 (2006.01) B01F 11/02 (2006.01) B01J 19/10 (2006.01) B08B 3/12 (2006.01) B08B 7/00 (2006.01) C09K 8/528 (2006.01) C22B 26/20 (2006.01) E21B 37/06 (2006.01) E21B 43/00 (2006.01)
Patent
CA 2137007
The present invention relates to the use of low frequency sonic energy in the sonic frequency range for enhancing the disso- lution of alkaline earth metal scales using a scale-removing solvent comprising an aqueous alkaline solution having a pH of about 8 to about 14 and containing EDTA or DTPA and a catalyst or synergist, preferably an oxalate anion. When the scale-rem- oving solvent is contacted with a surface containing a scale deposit while simultaneously transmitting low frequency sonic energy through the solvent, substantially more scale is dissolved at a faster rate than previously possible. The frequency of the sonic ener- gy is within the range of 1.5 to 6.5 kHz and preferably 1.5 kHz.
Morris Richard L.
Paul James M.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
LandOfFree
Method for removing alkaline sulfate scale does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for removing alkaline sulfate scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removing alkaline sulfate scale will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1969715