Published June 2016

The improvement of fishing tools used in overhauls in accordance with well conditions

T.Sh. Salavatov

U.A. Ibrahimov

The improvement of fishing tools is one of the main directions of development of overhaul techniques and technologies. The paper provides generalized brief data on fishing tools, limitation of usage of some of them due to the complications in emergency wells with 139.7 mm production string. The information on improved bell allowing usage and enhancing the conditions of fishing in string is presented. The detailed information on design and fishing properties of segment-type inner grapples used for fishing of emergency pipes with less diameter, advantages of structurally improved dual TB 48-92 non-releasing fishing tool with washing option to the analogical tools are presented. Considered improved fishing tools are successfully applied in Oil and Gas Production Departments of “Azneft” Production Union.