API STD 19C:2018 provides specifications and standard testing procedures for evaluating proppants used in hydraulic fracturing and gravel-packing operations.
The objective of this document is to provide specifications and a consistent methodology for testing performed on hydraulic fracturing and/or gravel-packing proppants. Methodologies and specifications (where applicable) are provided for:
— sieve analysis and median diameter determination;
— sphericity and roundness;
— acid solubility;
— turbidity;
— loose pack bulk density, apparent density, and absolute density;
— crush resistance;
— loss on ignition.
Proppant size designation is as per industry standard. It is based on the maximum and minimum size determination by sieve analysis and ASTM
1 sieve number (and not as per standard opening expressed
in micrometers).
Proppants in this document are sand, ceramic media, resin-coated proppants, gravel-packing media, and other similarly used materials for hydraulic fracturing and gravel-packing operations.
