Mar 30

GN has 4 units of poor boy degasser in stock, in addition, we have 9 units of flare ignition device in stock, which is worked together with poor boy degasser as safety equipments in the oilfield drilling.

poor boy degasser in stockk

poor boy degasser in stock

The poor boy degasser model in stock:



 Main body diameter




 Inlet pipe


 Mud Output pipe


 Gas discharge pipe






How poor boy degasser work to be anti-H2S?

( harmful gas , including but not limit to H2S)

1st way: The main material of the poor boy degasser body is 16Mn(Q345A), which is low alloy, high strength steel.

2nd way: By 3 layers of Marine Anti-Corrosion Zinc Rich Expoxy Paint:

(1). Sand Blast Treatment before painting.

(2). Two pack Epoxy zinc

(3). Two Pack Epoxy hi-build containing anticorrosive pigmentstwice.

(4). Surface pigmented with high quality light fast  PU pigments

To buy poor boy degasser in stock, welcome to contact GN solids control.

written by GN solids Control \\ tags: , , ,

Jul 29

Gas buster also called poor boy degasser or mud gas separator, which is used for oil and gas drilling. The description on oilfield glossary is “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”.

gus buster

gus buster

Gas Buster

is an important equipment to prevent well kick during drilling, so the production process should be strictly controlled. The process control including the following aspects:

1 Surface preparation


Before all paint actions will be taken the surface to be coated must be clean and free from contamination. Sharp edges shall be rounded or smoothed to radius 2 mm. Hard surface layers shall be removed by grinding before blasting. All welds shall be fully sealed.

Abrasive Blast Cleaning:

As abrasive steel grit or copper slag can be used. If oxidation has occurred between blasting and application of paint, the surface should be reblasted to the specified visual standard.

Surface defects revealed by the blast cleaning process, should be ground, filled, or treated in the appropriate manner.

2 Painting

Intershield 300 aluminium GTA 220

Intershield 300 bronze GTA 220

Continue reading »

written by GN solids Control \\ tags: , , ,

Mar 18

GN solids control has designed and exported many sets of 1000HP land rig solids control system to worldwide clients for oilfield drilling, we have many existing design for their different requirement. Several clients called it “mud handling system”, “mud tank system”.

GN 1000HP land rig solids control system is including the following equipments:

1 Linear motion shale shaker or BEM shaker 2 sets, they can be made of dual tandem shaker

2 vacuum degasser with 1200gpm or 1600gpm treating capacity

1000HP land rig solids control system

1000HP land rig solids control system

3 Linear motion or BEM mud cleaner with 55KW centrifugal pump

4 high speed decanter centrifuge 1 set or middle speed decanter centrifuge 1 set, depends on budget

5 Twin Jet mixing unit with 2pcs mixing pump, max mixing rate can reach 200kg/min if they work at the same time

6 poor boy degasser with 1000gpm flow rate

7 Flare ignition device

8 Mud tanks: including shaker tank, settling tank, suction tank & reserve tank, water tank, fire tank, pill tank, trip tank, etc.

9 A complete set of electric control system, explosion proof grade IP56, other electric specs and explosion proof class are available.

Once we get the rig layout, we can arrange for the layout of mud tank system and submit process flow drawing and layout drawing of the solids control system. Our design may take the following aspects into consideration.

1 waste solids discharge: we will try our best to simple the solids discharge operation, and save land area of solids discharge, sometimes a screw conveyor is applied to keep the mud system in compact structure and convenience solids discharge.

2 transportation convenience:

 All the handrail and walkway are foldable and can be moved together with tank body, you do not need to disassembly it.

Continue reading »

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Jan 24

As refer to mud gas separator or poor boy degasser, you may heard of “Flare stack”.

A flare stack (alternatively known as gas flare ) is a vertical vent pipe used in oil and gas drilling sites. The pipe diameter of flare stack is usually 8” for GN ZYQ series poor boy degasser.

flare stack

flare stack

The function of flare stacks

They are used to eliminate waste gas invaded in the drilling mud, otherwise it will lead to “blowout”, “kick”. They also act as safety systems for non-waste gas and is released via pressure relief valve when needed to ease the strain on equipment. They protect gas processing equipments from being over pressured. Also in case of an emergency situation, the flare system helps burn out the total reserve gas.

How flare stacks work

Whenever the poor boy degasser are over-pressured, the pressure relief valves automatically releases gases which are routed through large piping runs called flare headers to the flare stacks. The released gases are burned as they exit the flare stacks. The size and brightness of the resulting flame depends upon the flammable material’s flow rate in terms of joules per hour.

In order to keep the flare system functional, a small amount of gas is continuously burned, like a pilot light, so that the system is always ready for its primary purpose as an over-pressure safety system. The continuous gas source also helps diluted mixtures achieve complete combustion. Enclosed ground flares are engineered to eliminate smoke, and contain the flame within the stack.

Continue reading »

written by GN solids Control \\ tags: , , ,

Jan 14

The mud gas separator is used in a ‘kick’ situation to separate large volumes of free gas invaded in the drilling fluid.

 Function of Mud gas separator

 Mud gas separator also called poor boy degasser, Gus buster, which is designed to provide effective separation of the drilling mud and invaded gas from the well by venting the gas and returning the mud to the mud pits. Small amounts of entrained gas can then be handles by a

liquid gas separator

liquid gas separator

vacuum-type degasser located in the mud pits. The mud/gas separator controls gas cutting during kick situations, during drilling with significant drilled gas in the mud returns, or when trip gas is circulated up.

 Mud leg height is an important parameter for the mud gas separator, you need to clear it during evaluation.

 What is Mud leg?

The mud leg in the separator is controlled by adjusting the fluid level in the mud tank or by moving the separat6or up or down within the tank. Mud tank height can restrict the maximum mud leg obtainable for open-bottom mud gas separator.

 Mud leg is an important part for mud gas separator, it is also called Fluid level. Fluids level is maintained in a float mud gas separator by a float/valve configuration. The float opens and closed a valve on the mud return line to maintain the mud leg level. Valves can be operated by manual linkage system connected from the float to the valve, or the valve can be air-operated with the rig air. Mud leg height can be controlled by adjusting the float assembly.

 There are some inherent problems in the use of float-type mud gas separators. The manual linkage separator has experienced problems with linkage failure resulting in improper opening or closing of the mud return line valve. Air-operated valves fail to function if rig air is lost, resulting in no control of fluid level within the separator. Mud-return-line valves are prone to plug with solids, preventing mud flow back to the mud pits.

 Gas Flow calculation is another important issue to evaluate the mud gas separator.  

Usually we need to calculate the following items.

Continue reading »

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Aug 04

Vacuum degasser and poor boy degasser is both are degasser in oilfield, there are some differences some maybe confused.

How do the two degasser works and the difference

The vacuum degasser suck the drilling mud and separated mud and gas by vacuum pump.

Our vacuum degasser operates on a “thin strata” principle. The drill mud enters the tank and forces it to flow and distributed to a layer of internal baffle plates engineered to allow the liquid inside the vacuum degasser to flow as thin film and is exposed to the vacuum within the vessel. This layer of mud allows the gas to escape or break out of the mud . The vacuum pump releases the gas and discharge it to the disposal line. Mud exits the vessel under the action of the venturi and is returned to the mud system.

The poor boy worked by the physical characters.

The GN MUD/GAS SEPARATOR (poor boy degasser) consists of a cylindrical pressure vessel in a fixed vertical position. Inside is a series of specially angled baffle plates, stepped from the top to the bottom. When contaminated mud is routed into the separator, it flows downward successively over each plate. During this process, the heads of entrained gases “break out.” The released gas is then carried by the vent lines to a remote location where it can be safely flared. Continue reading »

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Jul 05

There are two kinds of degasser in oil gas drilling solids control equipments, one is vacuum degasser i.e. centrifugal degasser, the other is mud gas separation i.e. poor boy degasser.

The centrifuge degasser works using the principal of centrifugal force to separate gas from drilling mud. The device passes a gas-cut material throough a centrifugal force field to accomplish the degassing. The degasser contemplates the slurry flowing through the degasser by entering it through the top and flowing downward or entering from the bottom and flowing upward. In either case the slurry moves through the force field to accelerate gravity settling of the continuous phase of the flowable material and to accelerate buoyant force gas bubble rising time.centrifugal degasser

ZCQ Degassers provide effective degassing with high throughput by means of a unique centrifugal Vacuum design.

ZCQ Degassers are capable of handling high viscosity 20 pound mud with a 50% gas cut. They can draw up to 800 gpm and discharge as much as 400 gpm.

The ZCQ Degassing system is totally selfcontained on one skid. No auxiliary pump is required. Both suction and discharge are powered by a built-in Electric motor. Continue reading »

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Dec 14

Mud gas separator sizing and design selection is important for petroleum well drilling.Welcome to consult GN for the right sizing and fit design for your mud gas separator in oilfield drilling mud.

Mud/Gas Separator Sizing and Evaluation

Recent wellsite disasters have led to an increased emphasis on properly sized mud/gas separators. To assure safty,we

Mud Gas Separator sizing design

Mud Gas Separator sizing design

should know mud/gas separator technology and recommends separator configuration, components, design considerations, and a sizing procedure. A simple method of evaluating mud/gas separation within the separator vessel has been developed as a basis for the sizing procedure. A mud/gas separator sizing worksheet will assist drilling personnel with the sizing calculations. The worksheet provides a quick and easy evaluation of most mud/gas separators for a specific well application. A brief discussion of other mud/gas separator considerations is provided, including separator components, testing, materials, and oil-based-mud considerations.

The mud/gas separator is designed to provide effective separation of the mud and gas circulated from the well by venting the gas and returning the mud to the mud pits. Small amounts of entrained gas can then be handled by a vacuum-type degasser located in the mud pits. The mud/gas separator controls gas cutting during kick situations, during drilling with significant drilled gas in the mud returns, or when trip gas is circulated up. Continue reading »

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