Introduction of Fishing Tools（1）

Overview of Fishing Tools

During drilling and completion and downhole operations, the normal drilling, workover, and completion operations are interrupted due to stuck or broken drill pipe, drill collar, casing, tubing string, bit cone, logging instrument or cable, cable wire rope, packer, sand setting, seriously lost circulation, well collapse and blowout. It is necessary to use oilfield rod fishing tools or take special measures to remove the lost circulation, collapse and stuck. spray to resume normal operation. The operations and processes to remove leakage, collapse, jamming, and spraying are called "fishing".

Classification of Fishing Tools

1. According to Fishing tubing

• Soft fishing: wire (rope) / cable

• Hard fishing: tubing/drill pipe / coiled tubing

2. According to the occlusal relationship

• Inward fishing: fishing spear/pin tap / outer hook

• Fishing out: fishing barrel/pin tap / inner hook/fishing basket 

3. Classification of fishing tools

• Fishing out: Retractable fishing barrel, fepin tap, inner hook, three ball fishing device, etc.

• Inward fishing: pin tap, retractable fishing spear, casing fishing spear, outer hook, inverted buckle, fishing spear.

• Others: strong magnetic salvage, reverse circulation strong magnetic salvage, Fishingcup, reverse circulation strong magnetic Fishingbasket, reverse circulation, circular Fishingbasket.