Installing Casing Running Tools
Before casing can be run into the well, specialized casing-handling tools must be installed and verified for proper operation. These tools typically include casing elevators, spiders, slips, and associated handling equipment designed to safely lift, support, and control the casing string.
Because casing joints are heavier and larger in diameter than drill pipe, the equipment used to handle them is subjected to higher loads. Proper installation, inspection, and coordination are critical to preventing equipment failure and worker injury during casing operations.
Before beginning casing operations, the special service supervisor should conduct a pre-job safety meeting with the service crew and all involved rig personnel. This meeting should review individual responsibilities, lifting plans, communication methods, and the sequence of operations to ensure safe coordination.
Potential Hazards
- Being struck by or caught between casing and other objects during movement, such as when casing is tailed into the rig floor or transferred through the V-door.
- Strains and sprains resulting from maneuvering heavy casing, elevators, spiders, and associated tools.
- Falls from elevated work platforms, stabbing boards, or the rig floor while installing or adjusting equipment.
- Pinch-point hazards while aligning elevators, spiders, or casing tools.
Possible Solutions
- Stand clear of suspended, hoisted, or moving loads and never position yourself beneath casing or handling equipment.
- Maintain situational awareness of tubulars or equipment being lifted through the V-door and establish exclusion zones.
- Use proper hand and foot placement to avoid pinch points, and use tag lines to control casing movement.
- Use the rig floor winch, air hoists, or other powered equipment to handle heavy casing tools whenever possible.
- Use appropriate fall protection when installing equipment in the derrick or working at elevation.
- Maintain good housekeeping and keep the work area free from slip, trip, and fall hazards.
Knowledge Check Choose the best answer for the question.
7-2. What is a possible accident while installing equipment and tools to run the casing?
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