GN Screw Pump for feeding decanter centrifuge

A screw pump is a positive displacement pump that use one or several screw to move fluids or solids along the screw. There are many different variations. most  with very specific purposes. GN screw pump is an ideal pump for feeding to decanter centrifuge without shearing or agitating the drilling mud. The main parts are screw shaft and screw shaft bushing. Because of the special geometry shape of the two parts,They form pressurize capasity separately.The fluids flow along with the shaft,Inner flow speed is slow, capacity  remains,pressure is steady,so it will not generate vortex and agitating. The shaft of the pump is made from stainless steel.

Specification of GNG Series Screw pump

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how many BP execs does it take to (properly) screw in a drill?

 

Marketplace radio passed along to listeners the oil industry assertion that it was spending $300 million a month on the wages of workers on offshore drilling rigs that have been idled by President Obama's moratorium on new deep water drilling. The Washington Post reports that the ban has idled 33 deep-water drilling rigs.

If the average worker on a rig earns $100,000 a year, the industry's claim about lost wages would imply that it was employing 36,000 workers, or more than 1,000 on each idled rig. This seems implausibly high, and should cause reporters to question the industry's claim rather than just report it as being true. (The industry has an incentive to exaggerate the impact of the moratorium on workers since it helps to advance its agenda of ending the moratorium.)

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