... are cost savings and environmental advantages stemming from elimination of the control umbilical. The limited telemetry utilized in the system described will be accomplished with acoustic signals transmitted along the flowline. Although it may seem premature to be considering improvements in autonomous...

... Umbilicals". 2. Figs 1,3 and 12 by courtesy of MULTIFLEX INC. Fig.4 by courtesy of AMERADA HESS. ACKNOWLEDGEMENTS Amerada Hess Multiflex Inc. Weir Group plc National Couplings connector installation shear type stabplate shear pin subsea system controls and umbilicals upstream oil & gas collet...

... industry to supply a universal or adaptable wellhead connector will also increase. 3.2. Control System An integrated electrohydraulic control system, consisting of subsea control module, topsides controller and umbilical, was designed in parallel with the tree. The intention was that the system should...

...The Dynamic Performance of Subsea Hydraulic Control Systems S. G . 0 7 M a h o n y , The General Electric Company plc, UK This paper discusses the principles involved in calculating subsea electrohy- draulic system performance. Particular emphasis is placed on the control umbilical, which is shown...

... in order to overcome such problems. italy control module operation underwater technology christmas tree annular pressure drilling connector agip power consumption prototype well control installation controls and umbilicals characteristic upstream oil & gas water depth surface...