MLchartDataset catalogue

Inert sulfide

Term · Oil and gas · MLC-T-OAG-001972

A metal sulfide, such as pyrite, that stays chemically stable and does not release hydrogen sulfide when a mud sample is acidified, so it adds no gas hazard at the rig. Inert sulfides occur naturally in some drilled formations and do not register in acid-evolution sulfide tests such as the Garrett Gas Train. They contrast with soluble sulfides, meaning dissolved H2S, HS- and S2-, which are the toxic and corrosive forms controlled by pH and scavengers.

Table 1. Record
IdentifierMLC-T-OAG-001972
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-001972",
  "term": "Inert sulfide",
  "field": "Oil and gas",
  "definition": "A metal sulfide, such as pyrite, that stays chemically stable and does not release hydrogen sulfide when a mud sample is acidified, so it adds no gas hazard at the rig. Inert sulfides occur naturally in some drilled formations and do not register in acid-evolution sulfide tests such as the Garrett Gas Train. They contrast with soluble sulfides, meaning dissolved H2S, HS- and S2-, which are the toxic and corrosive forms controlled by pH and scavengers.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/inert-sulfide/"
}

Record 2,109 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.