Dolphin drilling rig incident

On 17 April 2002, a 44-year-old Norwegian worker on the rig was struck on the head and killed in an industrial accident. The accident resulted in Byford Dolphin losing an exploration contract with Statoil, which expressed concerns with the rig's operating procedures. . Byford Dolphin was a , column-stabilised operated by , a subsidiary of . Byford Dolphin was registered in , and drilled seasonally for various. . Byford Dolphin accident of 1983On Saturday, 5 November 1983, at 4:00 a.m., while drilling in the in the Norwegian sector of the , four divers were in a system on the rig's deck that was connected by a trunk. . • Gjerde, Kristin Øye; Ryggvik, Helge (2009). [North Sea divers] (in Norwegian). Stavanger: Wigestrand Forlag.. . Built as Deep Sea Driller, Byford Dolphin was the first-of-class in the highly successful H-3 series, designed by and completed at the shipyard in 1974.Byford Dolphin had an overall length of 108.2 metres (355. . • • – Professional diving in support of the oil and gas industry• – Diving mode and decompression technique• [pdf]

Screw air compressor no-load power

But there’s no air building in the tank or system, and no load sound either. If it feels like your machine is idling in neutral, you’re likely dealing with a load failure. Here's how to troubleshoot it based on your compressor type: reciprocating, portable rotary screw, or stationary rotary screw. [pdf]

FAQS about Screw air compressor no-load power

What do enclosed hydraulic-driven rotary screw compressors operate on?

Enclosed Hydraulic-driven Rotary Screw compressors operate on fluid power to run multiple applications and pneumatic tools. Cube Air System Rotary Screws provide the same efficiencies and reliability as open screw compressors for those with space parameters or existing air storage.

How do I know if my rotary screw compressor is bad?

Check the voltage when the compressor is running. If the voltage drop significantly when the compressor starts/runs, you have a bad connection somewhere. Check all relays, fuses and electrical connections. Common rotary screw compressor problems and issues that have been reported. Get help with the most common problems for rotary screw compressors.

How do you control a compressor at part load?

A moderately efficient method of controlling a compressor at part load uses load/unload mode with adequately sized storage receiver capacity. With this mode, a pressure switch, or electronic control, is used to provide load and unload signals to the compressor.

What is a Cube Air System rotary screw compressor?

A Cube Air System Rotary Screw compressor provides the same efficiencies and reliability as open screw compressors, but is designed for those with space constraints or existing air storage.

What is the power vs capacity curve for lubricated screw compressors?

Fig. 1. The power vs capacity curve for a lubricated screw compressor running in load/unload mode shows the power turndown yields roughly 7% power reduction for every 10 psi — making this a moderately efficient mode in which to operate. This mode requires adequate effective storage capacity; small receiver size causes inefficient rapid cycling.

How do I know if my lubricated screw compressor is too small?

If you are running load/unload control using lubricated screw compressors with small storage, consider upsizing your system storage to reduce compressor cycles. A good way of detecting lack of storage is to time your compressor cycles. If the load/unload cycle time is less than 2 minutes, your storage is likely too small.