OISD GDN 202 Field Inspection of Drilling And Workover Rig Masts, Substructures and Related Equipment

OISD GDN 202 provides guidelines for the field inspection of drilling and workover rig masts, substructures, and related equipment.

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Shyam.al (Maintenance Manager)

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English

Last updated

Fri, 08-Aug-2025

Course description

OISD GDN 202 provides guidelines for the field inspection of drilling and workover rig masts, substructures, and related equipment. These guidelines are developed by the Oil Industry Safety Directorate (OISD) and are intended to ensure the safe operation of oil and gas drilling and workover rigs.

Key aspects covered by OISD GDN 202:

Field Inspection:
The document focuses on practical, on-site inspections of the rig's structural components and related equipment.

Mast and Substructure:
It provides specific guidelines for inspecting the mast (the tower-like structure that supports the drilling equipment) and the substructure (the base or foundation of the rig).
Rig Equipment:
The guidelines also cover the inspection of other essential rig equipment, ensuring its proper functioning and safety.

Safety and Prevention:
The primary goal of the guidelines is to identify potential hazards and prevent accidents during drilling and workover operations.

Frequency of Inspection:
OISD GDN 202 specifies the frequency of inspections, including Level IV inspections (detailed inspections) every 10 years.

Residual Life Assessment:
It also addresses the need for a residual life assessment of the mast and substructure after the rig has completed its design life.

In essence, OISD GDN 202 is a crucial document for maintaining the safety and integrity of drilling and workover rigs by providing a framework for regular and thorough inspections of critical components.

What will i learn?

Introduction
Scope
Definition
Methods of Inspection
Frequency of Inspection
Daily/weekly inspection of Equipment /Accessories of mast & substructure
Checklist Format

Eligibility Criteria

Currently working in drilling rig.

Frequently asked question

The rig substructure is constructed of steel beams in a large frame, which supports the rig floor. On land, the rig floor is generally ∼15–20 ft above the ground level. The derrick rises up from the substructure above the rig floor (sometimes as much as 100 ft or more).

This is done using a special machine called a drilling rig, which rotates a drill bit to break through layers of rock and soil. The drill bit is attached to a long metal pipe called a drill string, which helps to carry drilling fluids down to the bit and bring up pieces of rock and soil as the hole gets deeper.

Shyam.al (Maintenance Manager)

I am Mechanical Engineer by profession and a part-time freelancer who loves beautiful codes & designs. Currently working as a Maintenance Manager at South Asia Consultancy.

A Assam-based web/app designer & developer who breathes life into user interfaces. With over 12+ years of industry experience, I’ve partnered with startups and established brands alike to create digital experiences that tell a story. When I’m not coding or pushing pixels, i am working full time as a Maintenance Manager in South Asia Consultancy.

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OISD GDN 202 Field Inspection of Drilling And Workover Rig Masts, Substructures and Related Equipment

Course description

What will i learn?

Eligibility Criteria

Frequently asked question

What is the substructure of a rig?

What equipment is used in drilling?

Field Inspection of Drilling And Workover Rig Masts, Substructures and Related Equipment 2 Lessons Hours

Shyam.al (Maintenance Manager)

Free

Lectures

2

Skill level

Freshers

Expiry period

Lifetime

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