MLchartDataset catalogue

pH

Term · Oil and gas · MLC-T-OAG-004408

A measure of the acidity or alkalinity of a fluid, expressed on a logarithmic scale from 0 to 14. It quantifies the hydrogen ion activity, where a value of 7 is neutral, values below 7 are acidic, and values above 7 are alkaline. Most water-based drilling fluids are maintained at an alkaline pH, typically between 9.0 and 11.5, to control clay swelling and minimize corrosion.

Table 1. Record
IdentifierMLC-T-OAG-004408
FieldOil and gas
SubjectDrilling Fluids
Record as JSON
{
  "id": "MLC-T-OAG-004408",
  "term": "pH",
  "field": "Oil and gas",
  "definition": "A measure of the acidity or alkalinity of a fluid, expressed on a logarithmic scale from 0 to 14. It quantifies the hydrogen ion activity, where a value of 7 is neutral, values below 7 are acidic, and values above 7 are alkaline. Most water-based drilling fluids are maintained at an alkaline pH, typically between 9.0 and 11.5, to control clay swelling and minimize corrosion.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/ph/"
}

Record 2,947 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.