Combined with an unwrapping process using explosives for bottom hole assembly (BHA) tightening. Let’s break down the key aspects of what’s happening here:
- Severing Tool Action on the Bit
The severing tool is being used to cut or detach the drill bit, likely due to it being stuck, damaged, or in need of replacement.
Severing tools can be mechanical (cutting blades), chemical (acid cutters), or explosive-based, depending on the operation’s needs.
The dark liquid or residue seen on the equipment suggests drilling mud, oil, or lubricant, which helps control pressure and minimize heat. - Unwrapping with Explosives for BHA Tightening
The BHA (Bottom Hole Assembly) consists of the drill bit, stabilizers, drill collars, and other downhole tools. If components are excessively tight due to torque or pressure, explosives can be used to release them.
In this process, shaped explosive charges are carefully placed to generate controlled force, helping to loosen the stuck connection or remove obstructions.
The unwrapping term refers to relieving the torque or tension in the BHA, making it easier to disconnect or retrieve. - Operational and Safety Considerations
Personnel in Protective Gear: The workers are wearing high-visibility coveralls and boots, ensuring safety in the hazardous drilling environment.
Rig Floor Setup: The presence of handling tools and safety equipment indicates that this operation is being carried out in a controlled manner.
Risk Management: Using explosives in a well is a high-risk procedure that requires precision, strict safety protocols, and experienced personnel.