Mast Equipment & Maintenance Standard

Drilling rig masts and substructures are critical structural components of land-based and offshore drilling rigs.

Created by

Shyam.al (Maintenance Manager)

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0 Hours

1 Enrolled

English

Last updated

Thu, 14-Aug-2025

Course description

A drilling rig mast is a critical structure supporting drilling equipment and enabling the raising and lowering of the drill string. Maintenance involves regular inspections of components like the crown block, traveling block, and derrick structure, along with attention to the hoisting system (drawworks, drilling line, etc.) and ensuring proper lubrication of moving parts.

Key Components and Maintenance:
  • Crown Block:
    The crown block, situated at the top of the mast, supports the drilling line. Regular inspection is crucial to ensure its sheaves (pulleys) are in good condition and properly lubricated. 
  • Traveling Block:
    This block, which moves up and down the mast, is connected to the drill string. Maintenance includes checking its sheaves, bearings, and safety latches. 
  • Derrick Structure:
    The derrick is the main structural framework of the mast. Regular inspections for cracks, corrosion, and deformation are essential. 
  • Drawworks and Hoisting System:
    This includes the drawworks (the winch), drilling line, deadline anchor, and other components. Proper lubrication and inspection of brakes, cables, and sheaves are vital. 
  • Standpipe and Rotary Hose:
    These components handle the drilling mud. Regular checks for leaks and wear are necessary. 
  • Monkey Board (Monkeyboard):
    This platform for roughnecks requires inspection of its structure and safety features. 
Maintenance Practices:
  • Daily/Pre-Start Inspections:
    Fluid levels, hose connections, safety features, and the functionality of critical components should be checked before each shift. 
  • Regular Lubrication:
    Following a strict schedule for lubricating all moving parts (bearings, gears, etc.) is crucial for reducing friction and wear. 
  • Preventive Maintenance:
    Regular maintenance, including inspections, lubrication, and timely repairs, can prevent unexpected downtime and extend the lifespan of the equipment. 
  • Training:
    Operators and technicians should be properly trained on inspection techniques, safe operation, and the specific maintenance needs of the rig. 
  • Compliance:
    Adhering to API standards and other relevant industry regulations is essential for safety and equipment reliability.

What will i learn?

  • Purpose
  • Scope
  • Responsibility: Rig Superintendent.
  • Equipment Class: Major
  • Maintenance Considerations
  • Safety Considerations.
  • Resources
  • Maintenance Summary

Eligibility Criteria

Frequently asked question

Substructures are the structural components of land and water-based oil platforms which support the derrick, mast, or other rig components, as well as providing storage space below the main deck. They are customized according to an application's needs, but there are several classifications for substructures.

A drilling mast is a structure over an oil well which supports the drilling equipment and allows it to be lifted into and out of the wellbore. The crown block is supported by the top platform of the drilling mast or derrick.

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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₹599

Lectures

1

Skill level

Experienced

Expiry period

Lifetime
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