screens and screen units cleaned by fluid filtration apparatus in treatment of waste water; namely, screens for use with water injection equipment in secondary recovery of oil and gas by water flooding oil and gas bearing reservoirs by fluid backwash; screens and screen units cleaned by fluid backwash for use with water injection equipment in secondary recovery of oil and gas by water flooding oil and gas bearing reservoirs

'apparatus':9 'backwash':40,48 'bear':36,68 'clean':5,45 'equip':22,54 'filtrat':8 'flood':32,64 'fluid':7,39,47 'gas':29,35,61,67 'inject':21,53 'name':15 'oil':27,33,59,65 'recoveri':25,57 'reservoir':37,69 'screen':1,3,16,41,43 'secondari':24,56 'treatment':11 'unit':4,44 'use':18,50 'wast':13 'water':14,20,31,52,63

SEA-SCREEN

Owners

Goods & Services