Wireline failures in oil gas wells – case studies

摘要

A wireline operation is a technique for deployment of various electrical or mechanical downhole tools (logging tools, plugs, packers, perforating guns, shifting tools, pulling tools etc.) on electrical cables, braided cables or slick line. The operations are performed in pressurized wells or in dead wells.rnThe development of the surface equipment for solid wireline operations has been thoroughly associated with new methods and tools for use in well completions, remedial measures and workovers. In connection with oil and gas well drilling, wirelines have been in use since the early days of the industry.rnThe main purpose of this paper is to report some studies regarding to common failures taken place for oil and gas wells wirelines. The probable causes and relevant mechanisms in different working conditions have been fully discussed by figures and site records and as conclusion the safe working procedures have been finally proposed.