Tag Archives: Drilling Fluid Vacuum Degasser

ZCQ vacuum degasser is a special equipment to deal with gas drilling fluid, which is applied to the mating of the other drilling equipment to eliminate the harmful gas of the fluid, to recover the specific gravity and stabilize the viscosity of the fluid.  ZCQ series Vacuum Degasser is a special-purpose device and a new type one for the treatment of gas in the drilling fluids. Also, at the same time vacuum degasser can be used as a heavy-power agitator and supported applicable to all types of mud circulation purification system.

vacuum degaasers

The ZCQ vacuum degasser has performed reliably on hundreds of thousands of wells and has earned its reputation as the standard of the industry, Vacuum degasser is one important part but not a phase of solids control, it is used to separate the gas and drilling fluids for safe and environment friendly. It is always installed after the shale shaker, and before the desander and desilter.

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Features & Benefits

Skid-Mounted – Simplifies spotting and installation.
Self-Contained – The unit consists of a cylindrical vacuum tank with internal baffle system, vacuum pump, jet nozzle and three-way float valve.
Three-Way Float Valve – Unique design allows venting to the flare line during hydrogen sulfide service.
High Performance – The D-GASSER can handle up to 1,000 gpm while restoring mud to its original density.
Robust – The unit is ruggedly built and is coated inside and out with a corrosion-resistant epoxy to ensure long life and minimum maintenance.

DC solid control is a professional manufacturer of solid control system equipment in china. We will provide our clients high quality products with most reasonable price, at the same time we also sincerely offer the high level after sales service for any home or abroad clients. You are welcomed to consult or visit us any time.

ZCQ vacuum degasser is a special equipment to deal with gas drilling fluid, which is applied to the mating of the other drilling equipment to eliminate the harmful gas of the fluid, to recover the specific gravity and stabilize the
viscosity of the fluid. The vacuum degasser is an important part of drilling mud cleaning system.

The ZCQ Series Vacuum Degasser can quickly remove all kinds of entrained gas from the fluids. It is an indispensable equipment in gas wells, prospect wells and deep wells. It is also used with various kinds of clean circulating systems
for drilling. The gas-fluids separation structure of the HV Series degasser is well designed, ensures efficient separation and proper filtering. A water ring vacuum style degasser is used for degassing combustible gas and explosive gas.
Do contact us for further sales enquiries.

vacuum degasser

Structure characteristics
1 The application of the gas and liquid separation can’t make gas and liquid is discharged at the same time. Besides, can circulatory supply water into the vacuum pump.
2 Use the belt to drive, avoid the complexity of the deceleration institutions.
3 The main motor is bias, the focus reduced.
4 The mud through the window of the trochanteric spray to the wall of the tank, the effect of the degassing is good
5 Two levels of the separation gas and the tank is the assembly, the structure is compact.
6 The water ring type of the vacuum degasser in the process of working, always in the constant temperature to work, the performance of safety is high.

degasser

Vacuum degasser produced by DC Machinery is suitable for various supporting of drilling mud solids control system, it plays an important role in restoring drilling mud performance, and can also be an agitator with big power.

Vacuum degasser actually is the 2nd purification equipment for oilfield drilling fluid. It is used to remove little invaded gas in drilling mud. It will be set between shale shaker and mud cleaner/desander. In oilfield drilling fluid system, there are 2 types degasser. One is poor boy degasser separating large quantity invaded gas, the other is the vacuum degasser, we also call it gas buster.

Degasser in oilfield, main function is get rid of invaded harmful or poisonous gas. To prevent blowout keep oilfield job site safety, restore drilling mud proportion, keep mud viscosity performance and improve the quality of drilling fluid. Vacuum degasser produced by DC Machinery has the advantages of compact structure, reasonable design and so on.

vacuum degasser

Operational Theory:

Vacuum degasser utilize negative pressure by vacuum pump to withdraw entrained gases from the mud. In order for this to work, mud is pumped through a venturi, which develops a negative pressure in the vessel by vacuum pump, thus sucking mud into the unit.  The choice between horizontally- or vertically-mounted units is typically based on the footprint requirements of the specific rig.

Features and Advantages of DC Machinery Vacuum Degasser:

1.Scientific reasonable design for structure,it can get effective gas fluids separation,filter out impurities to
guarantee vent pipe always clear.
2.Adopt belt drive,avoid the complication of the reducing gear,ensure the long working time without trouble.
3.Water circle type of vacuum pump is always at a constant temperature,apply to pump the flammable and explosive.
4.High degassing efficiency,up to 95%.
5.There is gas-water separator in vacuum degasser,which can avoid the gas and fluids are all removed together,and also can supply water for vacuum pump,saving water and environment-friendly.

You are welcome to contact with us to get more detailed infos, we will supply cost-effective vacuum degasser and satisfactory pre-sale, sale and after-sale technical services.

Vacuum Degasser are 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, shale shakers and mud cleaners, while hydrocyclones and centrifuges follow in the arrangement.

Working principle of vacuum degasser

The degassers are used to clean the gas in the drilling fluid, to ensure the drilling fluid property relatively stable, to guarantee the steady operation of swirlers. The degassers can be grouped into two kinds: ordinary pressure type and vacuum type. The ordinary pressure degasser is to use the centrifugal to take out gas to invade the mud, with the help of centrifugal force to make the mud spraying in the jet tanks and striking on the wall to make gas releasing. The vacuum degasser is to use the suction of the centrifugal, forming negative pressure in the vacuum tanks, under the action of drilling fluid at atmospheric pressure, through the suction pipe into the hollow shaft, then by umbrella piece of around the hollow shaft assembly, they jet to the skin of tank.

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Structure of vacuum degasser

ZCQ vertical type vacuum degasser made of explosion proof motor, vacuum pump, coaxial shunting gear reducer. When works, pressuring the start key, motor drive vacuum pump and mud gas separator degassing impeller rotate, gas cut invaded drilling fluid absorbed to mud gas separator and throw to mud gas separator by degassing impeller. Production a fluid lamina which is eddy spiral movement and form the centrifugal force field. Because the centrifugal force is the 32 times of its gravity, make the small bubbles in fluid lamina rapidly buoyancy lift to surface, in the function of negative pressure, the small bubbles rapidly broken, the broken bubbles gas enter into vacuum pump and discharged through the two air holes in reducer.

DC Solid Control is a total solids solutions provider. We offer industry leading solids control equipment including shale shakers, degassers, mud cleaners, deserter, desander and centrifuge. They are a complete circulating of mud systems.

vacuum degasserVacuum degasser use atmosphere and vacuum degassing theory eliminate the remaining gas in drilling fluid to ensure the drilling fluid property relatively stable, to guarantee the steady operation of swirlers. The degassers can be grouped into two kinds: ordinary pressure type and vacuum type.. Vacuum degasser tank is installed a group of wave blade and many mud inlet make flow is uniform distribution and form into turbulence in tank.

The vacuum degasser always set behind shale shaker. The internal impellers will mix the drilling fluid and break the bubble. It is a special-purpose device and a new type one for the treatment of gas in the drilling fluids. It can get rid of various gas of invasive drilling quickly. Vacuum degasser is very important for returning mud gravity, stabilizing mud viscosity and reducing drilling cost.

Features & Benefits

Skid-Mounted – Simplifies spotting and installation.
Self-Contained – The unit consists of a cylindrical vacuum tank with internal baffle system, vacuum pump, jet nozzle and three-way float valve.
Three-Way Float Valve – Unique design allows venting to the flare line during hydrogen sulfide service.
High Performance – The D-GASSER can handle up to 1,000 gpm while restoring mud to its original density.
Robust – The unit is ruggedly built and is coated inside and out with a corrosion-resistant epoxy to ensure long life and minimum maintenance.

The majority manufacturer in China are focus on oil drilling mud system is DC professional drilling solid control manufacturer,  it has a very important role for oilfield , mud mixing system and other industry. Any interest please contact us for inquiry.

Vacuum degasser is a high-efficiency in-line module that removes dissolved gases from HPlC Solvents. Its unique design assures reliable continuous operation and the highest level of continuous performance available without the need for helium degassing. Up to five solvent lines maybe degassed simultaneously by one unit. This type of equipment is part of the final polishing stage of a water treatment process to produce ultra high purity water.

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How to works of vacuum degasser

Vacuum degasser work by creating lower pressure inside a vessel so air or other gaseous impurities can be removed from a substance, such as water or even molten steel. The air is siphoned from the vessel after pressure is lowered enough to force the gas from the substance. A high-vacuum process environment is maintained for a variety of product testing and laboratory application.

Vacuumdegasser

Features of vacuum degasser

1.Negative pressure degasser can efficiently separate gas and liquid, filter out impurities and ensure smooth exhaust;
2.During the working process of water ring vacuum pump, it always stays in isothermal condition, which is suitable for the suction of flammable and explosive gas and the performance is safe and reliable;
3.Drilling mud hit the wall through the window of a rotor at a high speed, bubbles in the mud broken thoroughly, the degassing efficiency is high and more than 95%.
4.The application of gas water separator will not make the water and gas discharged simultaneously and the discharge pipe is always clear.

Vacuum degasser 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.

NOV(National Oilwell Varco)Nov Brandt Solids Control Division Is very famous brand around the world.

Vacuum degassers mechanically remove entrained gases such as hydrogen sulfide, carbon dioxide and natural gas from the mud system. Entrained gas can reduce the hydrostatic head of the mud column and can cause catastrophic well control problems.

vacuum degasser2

BRANDT™ manufactures negative pressure (vacuum) and atmospheric degassers. Vacuum degassers utilize negative pressure to withdraw entrained gases from the mud. In order for this to work, mud is pumped through a venturi, which develops a negative pressure, thus sucking mud into the unit. The mud then flows over dispersion plates, arranged either horizontally or vertically, creating thin sheets of gas-cut mud.

But now there are many Chinese manufactures can produce the vacuum degasser same like Brandt. DC Solids Control Is a China based Solids Control equipments manufacturer, we also offer worldwide vacuum degasser and services.

vacuum degasser

Our vacuum degasser is constructed by main vessel, gas water separator, vacuum pump, motor, and eletric control cabinet. The vacuum degasser could be used in many field, like commercial uses, agricultural uses and oilfield uses. Hereunder we talk about the oilfield uses.In oilfield drilling fluid system, there are 2 types degasser. One is poor boy degasser separate large quantity invaded gas, the other is the vacuum degasser, we also call it gas buster.

Vacuum degassing is the process of removing dissolved gas from a liquid solution by lowering the pressure inside a vessel containing the solution. The reduced pressure inside the vessel causes the gas to become less soluble and separate from the liquefied material. After the vacuum degassing process is complete, the gas is removed from the vessel, and the pressure is returned to normal. This process is typically performed in a specially designed chamber known as a vacuum degasser. Vacuum degassing is often utilized in water treatment, laboratory testing, and soil purification procedures.

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Operational Theory:

Vacuum degasser utilize negative pressure by vacuum pump to withdraw entrained gases from the mud. In order for this to work, mud is pumped through a venturi, which develops a negative pressure in the vessel by vacuum pump, thus sucking mud into the unit. The choice between horizontally- or vertically-mounted units is typically based on the footprint requirements of the specific rig.

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Commercial uses
Vacuum degassers are used in some water treatment operations to significantly reduce the total gas pressure in water containment vessels. The vacuum is created by using either a blower or pump, and the degasser containment vessel is constructed from several materials, including steel, fiberglass and aluminum. Some containment vessels are built from concrete reinforced with metal fittings. Aqua vacuum degasser are often used to remove sulfur gases that can build up in water.

Function of vacuum degasser 

Vacuum degasser used in filling well, grinding well and sinkiang Di na well. All technology indexes all achieve the design requirements. Degassing effect is marked and will produce the good economic benefit. In the regular drilling process, if occur drilling fluid gas cutting, the vacuum degasser can dispose it. It can avoid the influence of gas cutting to drilling fluid working performance, decrease the abrading of mud pump, improve the efficiency of water and decrease the repairing times and stop drilling dispose times.

Comprehensiveness of vacuum degasser 

In unbalanced drilling, now have the degassing equipment – drilling fluid gas separator, it only separate the free gas in drilling fluid, but it can’t eliminate the not free gas. Drilling fluid often have gas cutting. The function of vacuum degasser is eliminating the not free gas. The equipment developed succeed provide the guarantee for the matched equipment of regular drilling and unbalanced drilling.

Why vacuum degasser can eliminate the gas 

In order to efficiency eliminate the gas in drilling fluid must meet the requirements:

The bubbles in drilling fluids should expose on the surface, will rapidly swell and fracture in the negative pressure condition. Gas cutting drilling fluid will remain a certain times in separation chamber. After gas cutting enter into separation chamber will present the turbulent condition flowing. So the degassing effect decided by the reasonable control of vacuum, the remaining times of gas cutting drilling fluid in degassing chamber and the turbulent condition in degassing chamber.

Degassing chamber vacuum is higher, the bubbles received the expansionary force in drilling fluid is bigger, the volume expansion is bigger, drilling fluid give the buoyancy is bigger, then bubbles are easy float to the drilling fluid surface to broken.

Vacuum degasser can wipe off the invaded gas from drilling mud quickly, restore drilling mud proportion, keep mud viscosity performance and improve the quality of drilling fluid. Vacuum degasser produced by DC Machinery has the advantages of compact structure, reasonable design and so on.

Function of vacuum degasser 

Treatment gas invaded drilling fluid, wipe off the bubbles in drilling fluid, recover gas invaded density.

The difference of vacuum degasser and mud gas separator

The main function of mud gas separator is eliminating the big bubbles in drilling fluid which refers the expansion gas in well eye annular air, the diameter is about 3-25. The fluid can directly enter into mud gas separator from rotating blowout preventer, also can enter into fluid from throttle manifold place, separate out the big bubbles. The treatment drilling fluids still have small bubbles, after through shale shaker enter into vacuum degasser to treat.

Vacuum degasser is used to eliminating the small bubble sin drilling fluid, main used to wipe off the bubbles whose diameter is smaller than 1mm.

Consist of vacuum degasser 

Vacuum tank.  Three ventilation control valve system.  Ejector system.  Water circulating type vacuum pump.  Water box.  And Foundation

Vacuum degasser produced by DC Machinery is suitable for various supporting of drilling mud solids control system, it plays an important role in restoring drilling mud performance, and can also be an agitator with big power.