API RP 4G: 2019 [paper]

Objective
This document provides guidelines and establishes recommended procedures for inspection, maintenance, and repair of items for drilling and well servicing structures, in order to maintain the serviceability of this equipment. The information in this document should be considered as supplemental to, and not as a substitute for, the manufacturer’s instructions and the recommendations in API 54.

Structures Covered
Items of drilling and well servicing structures covered by this document include:
— masts/derricks and accessories;
— substructures and accessories.

NOTE 1 Crown block sheaves and bearings are covered under API 8B.

NOTE 2 Offshore derricks and their substructures and accessories are not under the scope of this document relative to 6.2.4, Category IV inspection requirements.

This product is unavailable in Cuba, Iran, North Korea, Syria

API 4G, G04G04