API RP 16ST-ed.2

Annotation of standard text API RP 16ST-ed.2 :

API RP 16ST, 2nd Edition, February 2021 - Coiled Tubing Well Control Equipment Systems

General

This Recommended Practice (RP) addresses coiled tubing well control equipment assembly and operation as it relates to well control practices. Industry practices for performing well control operations using fluids for hydrostatic pressure balance are not addressed in this RP.

This document covers well control equipment assembly and operations used in coiled tubing intervention and coiled tubing drilling/milling applications performed through:

• — tree equipment constructed in accordance with API 6A or API 11IW or both,
• — a surface flow head or surface test tree constructed in accordance with API 6A,
• — a fracture stimulation wellhead assembly (with at least two gate valves installed for isolation),
• — drill pipe or workstrings with connections manufactured in accordance with API 5CT, API 5DP or API 7-1, or a combination thereof.

Operations Not Covered in this Document

The following operations are not covered in the scope of this document:

• a) coiled tubing well intervention operations without the tree equipment (or surface test tree) in place;
• b) coiled tubing drilling operations without the tree equipment (or surface test tree) in place;
• c) coiled tubing less than 1/2 in. outside diameter (OD) used in well intervention operations;
• d) coiled tubing intervention operations within pipelines and flowlines;
• e) open-water coiled tubing intervention operations;
• f) reverse circulation of solids-laden fluids or gas through the coiled tubing workstring.