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

Steelwork:

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

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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.

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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.

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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

mud gas seperatorvacuum degasserThis two pictures is the different work principle of the two digassers.

The left side is the vacuum degasser, and the right side is the mud gas separator(poor boy degasser).

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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Jan 12

An offshore drilling company require the degasser from us

The drill vessel Belford Dolphin rig is considering installing a Diverter line degasser , in the vessels present offshore drilling location , the wells are subject to gas suspension in the riser (deepwater exploration) , venting this off via the choke and kill manifold to the present Poor Boy degasser  is not suitable.

mud degasser

mud degasser

The plan that is being researched at present is to install a degasser in the diverter line returning to the gumbo box.

Your model ZYQ1000 mud gas separator  or ZYQ1200 poor boy degasser is of interest to the vessel, please advise if a larger inlet can be fitted to these units IE  8” as opposed to a 5” inlet

Please supply a quote and delivery time for this offshore drilling mud degasser

The degassers for offshore drilling mud  as shown are minimal for what the client has requested from the rig.

On the present drilling location gas is being trapped in the riser (suspended in the mud) this is creating a situation were gas bubbles are coming out of the riser and causing mud to be expelled onto the drilling  rig floor , by the time this is noticed the gas bubble has all but dissipated , leaving a mess on the rig floor 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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Nov 27

Drilling mud vacuum tank degasser is one type of degasser in oil gas drilling fluids system.Another type of degasser is called Atmospheric Degasser.

Both of the vacuum degasser are devices that removes air or gases (methane, H2S, CO2 and others) from drilling fluids. There are two generic types that work by both expanding the size of the gas bubbles entrained in the mud (by pulling a vacuum on the mud) and by increasing the surface area available to the mud so that bubbles escape (through the use of various cascading baffle plates). If the gas content in the mud is high, a mud gas separator or “poor boy degasser” is used, because it has a higher capacity than standard degassers and routes the evolved gases away from the rig to a flaring area complete with an ignition source.

GN Drilling mud vacuum degasser.

ZCQ240 Degasser

Vacuum tank degasser

Vacuum tank degasser

ZCQ270  Degasser

ZCQ300 Degasser

ZCQ360 Degasser.

Vacuum Tank Degasser

Vacuum Type is the most common form of degasser. It can be horizontal, vertical or round vessel. A vacuum action is created to pull in the gas cut mud. When the liquid enters the tank it will flow and be distributed to a layer of internal baffle plates designed for the mud to flow in thin laminar film and is exposed to a vacuum that forces the gas to escape and break out of the mud.The vacuum pump moves the escaping gas from the vessel discharging it to the rig’s flare or environmental control system.

Derrick mud vacuum tank degasser.

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Oct 28

Gas Buster is called also called vacuum degasser in oilfield drilling fluids gas separating.

Gas buster

Gas buster

A  Gas Buster 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.

GN oilfield Gas Buster

Our oilfield Gas Buster 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 oilfield Gas Buster 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.

GN Gas Buster operates in three functions – mud circulation, vacuum creation and gas removal.  The Gas Buster  is used to remove the small entrained gas bubbles left in the mud by the mud/gas separator. These units are positioned downstream from mud/gas separators, gumbo removal equipments (if utilized), shale shakers and mud conditioners (if utilized), while hydrocyclone desander and Decanting centrifuges follow in the arrangement.

Gas Buster type

Vacuum tank degasser Type is the most common form of degasser. Vacuum tank degasser  can be horizontal, vertical or round vessel. A vacuum action is created to pull in the gas cut mud. When the liquid enters the tank it will flow and be distributed to a layer of internal baffle plates designed for the mud to flow in thin laminar film and is exposed to a vacuum that forces the gas to escape and break out of the mud.The vacuum pump moves the escaping gas from the vessel discharging it to the rig’s flare or environmental control system. Vacuum degassers are neccessory for drilling mud system in oilfield.

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Aug 29

Oilfield drilling Poor boy degasser that removes air or gases (methane, H2S, CO2 and others) from drilling liquids. There are two generic types that work by both expanding the size of the gas bubbles entrained in the mud (by pulling a vacuum on the mud) and by increasing the surface area available to the mud so that bubbles escape (through the use of various cascading baffle plates). If the gas content in the mud is high, a mud gas separator or “poor boy degasser” is used, because it has a higher capacity than standard degassers and routes the evolved gases away from the rig to a flaring area complete with an ignition source.

State International Engineering can design and manufacture mud gas separators, either as standalone units or supplied with choke and kill manifolds.It is used before shale shakers.

Based upon your predicted operating conditions and your required gas handling capacity we will be able to calculate the optimal size of your mud gas separator. All our mud gas separators are supplied with a complete calculation package; this will include mechanical strength calculations, theoretical separation capacities and safe working pressures etc.

All State’s poor boy degassers are fabricated to ASME VIII div 1 or PD 5500. The vessels are then hydrostatically tested with a 3rd party classification society witness. Our mud gas separators are supplied with a product certificate and design review.

Poor boy degasser

Poor boy degasser

State International Engineering poor boy degasser are supplied with top quality temperature and pressure sensing equipment where requested. These instruments can provide local displays at the separator, a display at the choke and kill control system and give repeated signals for the drilling control system. State can also provide loop seal pressure monitors and alarms. All this can be achieved through an State Int. Eng. hazardous area certified, control system.

Oilfield drilling Poor Boy degasser 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. ZYQ series Gas-liquid Separator combined with the (Company site: Solids Control System

Electric Ignition Device can be used to ensure the drilling process smooth. It is devided into the normal pressure gas-liquid separator and pressure auto-control gas-liquid separator, according to the pressure.Ga-Liquid Separator is your best choice to prevent drilling fluids invasion.

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Aug 09

GN Solids Control is a vacuum degasser manufacturer from China.

Buy are see specifications : Vacuum Degasser

vacuum degasser

vacuum degasser

the vacuum degasser is a special device used to process gas-trapped fluid commonly found in drilling operations in the oil field. This device is the latest degasser developed by our company, suitable for all kinds of mud cleaning system. It helps to recover the mud density and stabilize the mud viscosity, thus reducing the drilling cost. At the same time, if there are no gas bubbles in the mud, this device can be used alternatively as a large capacity stirring device.

We supply other related equipments: Continue reading »

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