Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of preventing loss of an oil-base drilling fluid during the drilling of an oil or gas well into a subterranean formation

Method of preventing loss of an oil-base drilling fluid during the drilling of an oil or gas well into a subterranean formation

US Patent 4525285 · Granted Jun 25, 1985

Estimated economic value: $2,177,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Glycoside-in-oil drilling fluid system1996
Cationic amide/ester compositions as demulsifiers1992
Method for effecting electric well logging with introduction of a fluid composit1987
Method for effecting electric well logging with introduction of a fluid composit1987
Corrosion inhibitor for heavy brines1985
Well drilling and completion fluid composition1985
Well drilling and completion fluid composition1985
Shale and salt stabilizing drilling fluid1985
Well drilling and completion fluid composition1984
Well drilling and completion fluid composition1984
Lubricating composition for well fluids1983