The term “pH” denotes the negative logarithm of the hydrogen ion, H+, activity in aqueous solutions: pH = -log (H+) Field measurement of drilling fluid or filtrate pH and adjustments to the pH are fundamental to drilling fluid control. Clay interactions, solubility of various components and contaminants, and effectiveness of additives are all dependent on pH.
- pH Meters – Digital: Easy to operate, rugged, portable and compact
- pH Meters – Digital Pocket: Provides a practical alternative to pH Litmus paper
- pH/Ion Meter – Digital Lab Model: Designed to measure the entire pH scale (0-14)