Since marine risers were first used in the late 1950's, manufacturers, drilling contractors, and operators have concentrated on the structural and analytical analysis techniques to predict stresses in marine riser systems. This effort has culminated in the successful comparison of a number of computer programs (both static and dynamic) which was published in API Bulletin 2J in January 1977. With heavy emphasis on analysis, very little effort has been focused on the input design criteria, its resulting interpretation and its actual in-field application on a day-to-day basis. In fact, due to this lack of attention, considerable confusion, ambiguity and misinterpretation has resulted in actual field application. Taking into consideration the rig's characteristics, its mooring capability and riser system, a design criteria is presented which is tailored for day-to-day field use. Drilling operations and subsequent actions are categorized into Drilling (Normal), Drilling (Limited), Suspended (Limited) and Suspended (Completely) as guidance to the designer and the man on the rig. (Kursetz)
Field operation of drilling marine risers
Praktischer Betrieb in der Bohrtechnik von Steigleitungen bei Bohrinseln
European offshore petroleum conf. and exhibition, Earls Court ; 1 , Oct ; 347-360
1978
14 Seiten, 8 Bilder, 6 Tabellen, 21 Quellen
Conference paper
English