Spiral Grapple - Downhole Debris/Tool Retrieval: When fishing out stuck or fallen cylindrical tools (e.g., broken drill pipes, collars) or irregular debris in the wellbore. - Milling & Fishing Combined Operations: Working with milling tools to grip and lift fragmented or partially milled objects after initial debris breaking. - Wellbore Cleaning in Complex Wells: Used in deviated or horizontal wells to retrieve objects that traditional fishing tools may struggle to secure.
The Sliding Block Spear is an internal fishing tool used for fishing fallen objects that are generally used in oil perforation process, such as drill pipe, tubing, wash pipe, liner, packer, water distributor, etc. It can also be used for the reversing of stuck fallen objects and it can be used in conjunction with other tools such as jar and back-off tool.
Application Scenarios - Retrieving Cylindrical Downhole Tools: Used to fish out stuck or broken drill pipes, collars, or stabilizers with regular outer diameters in the wellbore. - Handling Smooth-Surfaced Objects: Ideal for grabbing tools or debris with smooth, uniform surfaces that are difficult for other grapples to secure. - Wellbore Cleaning in Vertical/Moderately Deviated Wells: Efficiently operates in relatively straight or slightly deviated wells to recover fallen objects.
