E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/00 (2006.01) E21B 37/06 (2006.01)
Patent
CA 2481533
A method of foam emulsion well cleanout for gas well. An emulsifier apparatus is connected to a source of compressed air and a source of foaming solution that are capable of supplying compressed air and foaming solution to the emulsifier apparatus within a range of selected pressures. The foam outlet of the emulsifier apparatus is connected to a discharge conduit supplying foam to a gas well. The pressure of compressed air foaming solution supplied to the foaming solution inlet is increased until sufficient pressure is generated to force foam exiting the foam outlet along the discharge conduit and down the gas well with an average density of approximately 1 KPA per meter, while monitoring gas well pressure and varying compressed air pressure and foam density to ensure that pressure is always maintained at less than 80% of well pressure.
Leduc Al
Woodruff Nathan V.
LandOfFree
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