Earth Borehole Drilling, Completion, Workover, and Abandonment Chemicals-Namely, a Water-Soluble Chemical, Free of Calcium Carbonate, for Increasing Viscosity of Waters and Brines Having Basic pH without Developing Gel Strengths in Aqueous Solutions Containing Said Chemical

'abandon':7 'aqueous':35 'basic':28 'borehol':2 'brine':26 'calcium':18 'carbon':19 'chemic':9,15,39 'chemicals-nam':8 'complet':4 'contain':37 'develop':31 'drill':3 'earth':1 'free':16 'gel':32 'increas':21 'name':10 'ph':29 'said':38 'solubl':14 'solut':36 'strength':33 'viscos':22 'water':13,24 'water-solubl':12 'without':30 'workov':5

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