Valves by Pump Engineering Ltd Meet Though Demands In Deep Water Oilfields

20.04.2015

Badger Meter control valves, available in the UK through Pump Engineering, are continuing to make an important contribution in applications such as oil extraction in ultra-deep oil wells thanks to their ability to overcome the difficult challenges associated with these applications. For example, withstanding extreme pressures, wide flow ranges and ultra-low temperatures.

Valves by Pump Engineering Ltd Meet Though Demands In Deep Water Oilfields

Badger Meter control valve (Image: Pump Engineering Ltd)

As a consequence of increasing global demand and escalating fuel prices, oil and gas production has increased significantly at much greater depths. While market forces have driven the need for production companies to push back the boundaries’ and extract oil and gas from greater depths, technological advances have been required to meet the challenges to enable safe and efficient deep sea oil extraction.

For example, as oil and gas production moves to deeper water, flowline pressures rise and seawater temperatures fall and this can result in the formation of hydrates. If these ice-like hydrates are left unchecked they can deposit on the inner wall of flowlines and agglomerate, until they completely block the flow line.

To eliminate the potential problem of hydrates forming in flowlines at these depths and pressures, chemical additives, such as methanol or mono ethylene glycol, are injected into the well-stream. These additives act as anti-freeze and are effective in preventing hydrates from forming and therefore play a key role in helping to keep flowlines open.

For example, The Badger Meter Company, represented in the UK by Pump Engineering, was challenged to manufacture one inch valves which could handle ethylene glycol at flows up to 2 (two) lit/min at 700 bar.

These valves were successfully deployed in deep water oilfields in the Eastern Gulf of Mexico where pressures are relatively high and temperatures relatively low and therefore the risk of hydrates forming is high.

Additive and injection applications are ideal for these valves as they are suited to both low pressure and high pressure duties. The Badger range includes models ranging in size from ¼” up to 2”, capable of operating in temperatures from -270º up to +800ºC, with CV’s from 0.000018 to 2.5 and rangeability from 50:1 to 15:1. They can be supplied as standard in 316 stainless steel or Stellite trims although alternative materials such as Monel, Hastelloy B& C, titanium and zirconium, can also be specified.

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