There are many kinds of devices and implements used during drilling operations for oil and gas exploration. Oilfield fishing tools are one of these, and they often work to clean up newly drilled bores free of debris. The variety of tools therefore is specialized, not like the fishing materials that you use for real fishing or the traditional term.
The term is used in the sense that personnel have to extract items from deep drilled wells just like some would fish out live species from holes cut into ice. But the oilfield process is more complex, and also the need is to take out even the tiniest bits that could hamper further operations in drilling.
That means that there might be nets here, but these cannot be used like in the traditional sense. In fact nets are rarely if ever used, but basket types and magnets are. Baskets are more like nets or used like nets, and there are many situations which can require the use of these products or devices or the fishing process here.
Materials coming from drill bits can fall off, from screws to heads, and other kinds of loose things. A lot of material comes off the high pressure drill operations and boring always pries loose rock formations and soil. All of the strata that a well digs into will contribute any number of items in the mix.
When striking water formations, the process becomes even more complex. And the need is to pump out water that has a load of debris in it. But this might even be an easier thing for the operators and crews here, using wide bore hoses that can suck out any number of items easily from any depth.
The process too can be used for dry wells, specifically pumping in water so that it can be taken out. First off it has to wash off the items or float them. The liquid mess is checked for any sort of material mixture, assuring operators that what should be taken out can be, because pumping can be suddenly stopped by big items that clog the hoses.
There is nothing to do but proceed with these tools to make an operation progress. It is partially mechanical and partially manual and often a tiresome break in operations that could really delay a firm. That means that the implements are often innovated on, and these must be bought and used and stocked by the utility crews here.
They come in whenever needed, and the crews need to work fast before more things drop in. The work may seem really onerous except that the personnel are well paid and often experts in the mechanics of the thing. These tools are usually commercially available in specialty shops or distribution outlets.
Most times you have to be an operator or a well drilling firm to know and use these. Companies manufacturing them are also considered part of fossil exploration systems. The things they provide are so specialized they often focus on producing these exclusively.