DRILLING FLUID

DRILLING FLUID

FIELD: drilling fluids. SUBSTANCE: drilling fluid than can be used under high formation pressure and hydrogen sulfide corrosion conditions contains, wt %: magnesium chloride, 3.0-3.7; alkali 0.5-0.85; carboxymethylcellulose, 0.18-0.25; monopotassium phosphate, 4.5-4.6; dipotassium phosphate, 37-45;...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LUKOVNIKOV V.P, MOSIN V.A, VASIN A.V, LAMOSOV M.E
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:FIELD: drilling fluids. SUBSTANCE: drilling fluid than can be used under high formation pressure and hydrogen sulfide corrosion conditions contains, wt %: magnesium chloride, 3.0-3.7; alkali 0.5-0.85; carboxymethylcellulose, 0.18-0.25; monopotassium phosphate, 4.5-4.6; dipotassium phosphate, 37-45; condensed sulfite- alcohol distillery dreg or ferrochromelignosulfonate (protective reagent), 3.5-4.5; magnetite (weighting agent), 9.5-26.5; and water, the balance. EFFECT: increased stability and hydrogen sulfide absorption capacity. 1 tblf