Oil/gas drilling rig poor boy degasser

Poor boy degasser is an efficient item to get rid of large quantities of toxic gas among drilling fluid. This blog will introduce more info on poor boy degasser about the basic structure, the simple principle and how to design a poor boy degasser.

Poor boy degasser structure

We all know, poor boy degasser is also called mud gas separator or gas buster. One glossary ever described it as a simple separator vessel used to remove free or entrained gas from fluids circulated in the wellbore, such as mud used during drilling operations. The gas buster typically comprises a vessel containing a series of baffles with a liquid exit on the bottom and a gas-vent line at the top of the vessel.

Above is a simple description on poor boy degasser. The oil and gas drilling rig poor boy degasser completely includes base support, main vessel, fluid inlet, baffles, drain valve, vent line, discharge output, pressure gauge, relief valve, and lay down legs.

If requested by clients, the vent line should be supplied together with degasser. Usually, there will be 30m or 50m for option.

Oil rig poor boy degasser principle

Oil rig poor boy degasser basic working principle is the drilling fluid flow into feed inlet. After going through baffles the air bubble will break down and flow up. The drilling mud will flow down till the discharge output. It is different with vacuum degasser

We know, on poor boy degasser, there is necessary mud seal/mud leg.  U tube on discharge output will result the mud seal. Its function and effect is to prevent discharged gas flow together with drilling fluid after degassing.

Usually, for oil and gas drilling rig, after the poor boy degasser the drilling fluid will flow to shale shaker for subsequent solids control process.

Above is the simple principle of poor boy degasser working. Following will be the design on poor boy degasser.

How to design poor boy degasser

Former content introduced basic principle and structure. So now the design is more simple and clearer.

First of all, the poor boy degasser is almost designed as vertical type. It is closed bottom vessel type. Poor boy degasser for oil and gas drilling rig includes 600mm, 800mm, 1000mm, and 1200mm diameter.  The feed inlet usually is 5″, output discharge is 10″ or 8″, while the vent line will be 8″ diameter. But customizable dimension is available upon users’ demand.

The poor boy degasser feed inlet connected with choke manifold. The output line will be connected with shale shaker inlet line or flow divider. Vent line is connected to flare line.

 Regarding to the liquid leg, we usually design it as 12 ft line. As we said before, the mud seal will prevent drilling mud with remain toxic. Sufficient mud seal will lead good performance. Furthermore, there will be 4-5 baffles mounted on vessel wall.

Finally, is to design the support base. It can be fixed type or elevating/folding type. More and more clients prefer the folding base poor boy degasser for its flexibility and convenience at oil drilling job site.

Please find sketch for reference. General information is as above content. Detail and certain design will be provided according to actual working condition. If you need poor boy degasser, please contact OGEM Equipment. We have poor boy degasser for sale now.

Brief introduction of poor boy degasser

We OGEM manufacture mud gas separator in oilfield drilling mud cireculation system .

Mud gas separator is also called Poor boy degasser, Gas-Liquid separator. It captures and separate 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) becomes less than 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.

FLQ?series mud gas separator From OGEM Solids Control

FLQ series Mud gas separator is professional equipment to treat the gas invade mud. When the drilling mud result gas invade, the proportion of its weight and viscosity have a greater deviation not to meet the requirements of drilling.

The serious situation is that would cause Chung well, and even blowout accident occurred, if not to treat it timely.?FLQ series mud gas Separator combined with the Electric Ignition Device can be used to ensure the drilling process smooth.

It is devided into the normal pressure mud gas separator and pressure auto-control gas-liquid separator, according to the pressure.Mud Gas ?Separator is your best choice to prevent drilling fluids invasion.

Principle of Operation

The principle behind the mud gas separator is relatively simple. 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 the flare line to reduce the threat of toxic and hazardous gases and the mud then discharges to the shale shaker and to the tank.

Gas-liquid separators in other countries also called Poor boy,Liquid-gas separators,Mud/Gas Separators, etc.OGEM Equipment designs and manufactures FLQ Gas-Liquid Separators.

Gas-Liquid Separators is an extremely reliable, vital piece of safety equipment for today?s drilling operations. It is ideal for use where drilling is likely to encounter large volumes of gas, sour gas or when an operator is drilling with an underbalanced mud column.

This Gas-Liquid Separators is primarily used to sep – arate and safely vent large pockets of free gas, that may include toxic gases such as hydrogen sulfide, etc. from the drilling fluids processing system.

Buy Solids control Gas-liquid separator for solids control system,drilling fluids,well drilling solids control Gas liquid separator from China , please contact OGEM.

Introduction of mud gas separator

Mud Gas Separator is commonly called a gas-buster or poor boy degasser. It captures 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 down hole 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.

The principle of mud/gas separation for different types of vessels is same. The types of closed bottom type, open bottom type and float type. According to pedestal or base type there are fixed type and elevating type. Poor boy degasser in China is usually named according to vessel diameter. So the type also incurs FLQ800 or ZYQ 800, FLQ1000, FLQ1200 and FLQ1400. Usually, the degasser?s type or configuration is customizable.

Principle of operation

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 the flare line to reduce the threat of toxic and hazardous gases and the mud then discharges to the shale shaker and to the tank.

Mud gas separator for drilling fluids solids control

Mud gas separators also called Poor boy degasser, Liquid-gas separators, Mud/Gas Separators, etc in other countries. OGEM Solids Control?designs and manufactures FLQ Mud gas Separators. Mud gas Separator is an extremely reliable, vital piece of safety equipment for today?s drilling operations. It is ideal for use where drilling is likely to encounter large volumes of gas, sour gas or when an operator is drilling with an under balanced mud column. This Mud gas Separators is primarily used to separate and safely vent large pockets of free gas, which may include toxic gases such as hydrogen sulfide, etc. from the drilling fluids processing system.

FLQ series Mud gas separator

• FLQ series Mud gas separator (Poor Boy Degasser) is a professional equipment to treat the gas invading mud. When the drilling mud result gas invades, the proportion of its weight and viscosity has a greater deviation not to meet the requirements of drilling.

• The serious situation is that would cause Chung well, and even blowout accident occurred, if not to treat it timely FLQ series Mud gas Separator combined with the Electric Ignition Device can be used to ensure the drilling process smooth.

• It is divided into the normal pressure Mud gas separator and pressure auto-control Mud gas separator, according to the pressure.

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Mud gas Separator is your best choice to prevent drilling mud invasion. When you need, you can contact us freely, the best price and quality will be served.