ACID SOLUBLE WEIGHTING AGENT FOR WELL DRILLING, WORKOVER AND COMPLETION FLUIDS

摘要

1489043 Drilling, workover or completion fluids DRESSER INDUSTRIES INC 5 Jan 1976 [23 Jan 1975] 00200/76 Heading E1F A well drilling, workover or completion fluid comprises an oil or water base and ferrous carbonate as the sole acid-soluble weighting agent. The weighting agent is preferably in an amount sufficient to provide the fluid with a density of up to 19 16./gallon.