SPYDERS

Basic functions and purpose of spiders:

Holding pipes during elevator operations.

• Allows you to secure the pipe string, preventing it from falling or unauthorized movement.

Casing centering during running.

• Ensures correct positioning of the pipe, preventing it from skewing and getting stuck in the wellhead.

Facilitates pipe handling at the drilling site.

• Spiders are used in conjunction with elevators to distribute the load and improve pipe control.

Improves safety during tripping operations.

• Eliminates the possibility of pipe falling out of the string during lifting or installation.

Types of spiders:

• Mechanical spiders - manually operated and suitable for small diameter pipe.
• Hydraulic spiders - operate by hydraulic drive, providing reliable pipe clamping under heavy loads.
• Pneumatic spiders - use compressed air to hold pipes, which is convenient for automated processes.

Where are spiders used in the oil and gas industry?

• When drilling wells - for securing drill pipe during running and lifting.
• When casing wells - for centering and holding casing pipes.
• When operating wells - for running tubing and other string elements.

Advantages of using spiders:

• Provide reliable fixation of tubing when working with the string.
• Reduce the load on elevators and other lifting devices.
• Increase the safety of drilling and repair operations.
• Allows for accurate pipe centering, reducing the risk of pipe damage.