Technical

Fishing Assemblies and tools Fishing Assemblies and tools.Fishing is the general term used to describe…

Changing a Bottom Hole Assembly To avoid problems with under gauge hole and BHA changes…

Fishing Planning and Preparation When equipment has been lost or is stuck in the hole,…

Effective Pull On Stuck Pipe The first actions taken when the drillstring becomes stuck have…

Downsized conventional drilling – Slim Hole Wells Downsized conventional drilling is the use of a…

Differential Sticking (Cause of Stuck Pipe) In normal overbalanced drilling conditions, a pressure differential exists…

Drill string design (slim hole wells) Over the years a standard set of API sizes…

Fishing in slim hole wells  With improved equipment and operating practices, downhole failures have decreased…

Lost Sidewall Sample Bullets In case of lost Sidewall Sample Bullets, the following guidelines should…

Backing off Procedures The string shot size shall be determined by the Logging Engineer so…