Mercuric method determines drilling-fluid chlorides

Journal Article · Mon Jan 28 04:00:00 EST 1985 · Oil Gas J.; (United States)

OSTI ID:5850709

Warren, B

The classical method of chloride ion determination uses silver nitrate as the titrant. The yellow to brick-red endpoint color change in this titration is difficult to detect visually and therefore a great deal of variability in Cl/sup -/ content often occurs between operators. A large error in chloride ion content may lead to incorrect conclusions about mud properties. A drastic change in mud properties typically results in serious drilling problems. Determination of chloride ion employing the mercuric nitrate method is simple, fast, reliable, and above all, accurate. This method is being proposed as an adjunct or replacement to the standard silver nitrate titration presently used in API.

• Research Organization: Technifluids, Calgary
• OSTI ID: 5850709
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 83:4; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ACCURACY
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DISPERSIONS
DRILLING FLUIDS
EMULSIONS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
IMPURITIES
MERCURY COMPOUNDS
MERCURY NITRATES
MOISTURE
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE
QUANTITATIVE CHEMICAL ANALYSIS
TITRATION