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Mud Gas SeparatorFrom Wikipedia, the free encyclopedia

Mud Gas Separator capable of handling 1000-1500gpm

Process Flow Diagram For Mud Gas SeparatorMud Gas Separator is commonly called a gas-buster or poor boy degasser. It captu

res and separates large volume of free gas within the drilling fluid. If there is a "KICK" situation, this vessel separates the mud and the gas by allowing it to flow over baffle plates. The gas then is forced to flow through a line and vent it to a flare. A "KICK" situation happens when the annular hydrostatic pressure in a drilling well temporarily (and usually relatively suddenly) falls below that of the formation, or pore, pressure in a permeable section downhole, and before control of the situation is lost.

It is always safe to design the mud/gas separator that will handle the maximum possible gas flow that can occur.[1][2]

Contents [hide]

1 Types of Mud/Gas Separators2 Principle of operation3 See also4 NotesTypes of Mud/Gas Separators[edit]The principle of mud/gas separation for different types of vessels is the same.[3]

Closed bottom typeOpen bottom typeFloat typeThe closed-bottom separator, as the name implies, is closed at the vessel bottomwith the mud return line directed back to the mud tanks. Commonly called the po

or boy, the open-bottom mud gas separator is typically mounted on a mud tank ortrip tank with the bottom of the separator body submerged in the mud. Fluid level (mud leg) is maintained in a float-type mud gas separator by a float/valve configuration. The float opens and closes a valve on the mud return line to maintain the mud-leg level.[4] According to pedestal or base type there are

Fixed typeElevating typePoor boy degasser in China is usually named according to vessel diameter.So thetype also including

FLQ800 or ZYQ800

FLQ1000FLQ1200FLQ1400Usually, the degasser type or configuration is customizable

Principle of operation[edit]The principle behind the mud gas separator is relatively simple. On the figure,the mud and gas mixture is fed at the inlet allowing it to impinge on a series of baffles designed to separate gas and mud. The free gas then is moved into theflare line to reduce the threat of toxic and hazardous gases and the mud then discharges to the shale shaker and to the tank.

See also[edit]

Mud systemsNotes[edit]Jump up ^ Dilling Fluids Processing Handbook ISBN 0-7506-7775-9

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Jump up ^ Mud Equipment Manual ISBN 0-87201-614-5Jump up ^ SPE Drilling Engineering, December 1991Jump up ^ "Types of Mud Gas Separators". DC Solid control. 24 May 2012.