Changes

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==Reasons for fishing==

==Reasons for fishing==

 

[[file:fishing_fig1.png|left|thumb|{{figure number|1}}Differential sticking. © Exploration Logging, 1979.]]

fishing_fig1.png|{{figure number|1}}Differential sticking. ©Exploration Logging<ref name=ExplorationLogging>Exploration Logging, Inc., 1979, Field geologists training guide—an introduction to oilfield geology, mudlogging, and formation evaluation: Sacramento, CA, p. 4-52 to 4-57.</ref>

 

file:fishing_fig2.png|{{figure number|2}}Key seating. © Short;<ref name=Short1981>Short, J. A., 1981, Fishing and casing repair: Tulsa, OK, PennWellBooks, 365p.</ref> courtesy of PennWell Books.

[[file:fishing_fig2.png|thumb|{{figure number|2}}Key seating. © Short, 1981; courtesy of PennWell Books.]]

''Fishing'' (in the oilfield sense) refers to the recovery of unwanted material left in the wellbore. Numerous situations can occur that require fishing:

''Fishing'' (in the oilfield sense) refers to the recovery of unwanted material left in the wellbore. Numerous situations can occur that require fishing:

==Types of fishing tools==

==Types of fishing tools==

<gallery>

<gallery mode=packed heights=200px widths=200px>

file:fishing_fig3.png|{{figure number|3}}Magnet.

file:fishing_fig3.png|{{figure number|3}}Magnet.

file:fishing_fig4.png|{{figure number|4}}Junk basket.

file:fishing_fig4.png|{{figure number|4}}Junk basket.

* [[Core orientation]]

* [[Core orientation]]

* [[Mudlogging: Gas extraction and monitoring]]

* [[Mudlogging: Gas extraction and monitoring]]

==External links==

==External links==

[[Category:Wellsite methods]]

[[Category:Wellsite methods]]