Definition(s)
Additive
Any chemical substance or combination of substances, including a proppant, contained in a hydraulic fracturing fluid that is intentionally added to a base fluid for a specific purpose whether or not the purpose of any such substance or combination of substances is to create fractures in a formation.
Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Additive
Material added to a cement slurry to modify or enhance some desired property.
- NOTE: Properties that are commonly modified include setting time (by use of retarders or accelerators), fluid loss, viscosity, etc.
Source: API SPEC 10A, Specification for Cements and Materials for Well Cementing, Twenty-fourth Edition, December 2010. Global Standards
Additive
Material added to a cement slurry to modify or enhance some desired property.
- NOTE: Common properties that are modified include: setting time (by use of retarders or accelerators), fluid loss control, viscosity, etc.
Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards