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Tag Archives: Degassing equipment

Safety device of vacuum degasser produced by DC Solid control

Vacuum degasser is an safety device for drilling fluid circulating system. It is a kind of basic and important equipment. Vacuum degasser’s common function is that you could use it to remove gas from drilling solids; it is also a kind of security equipment for the whole drilling work.

vacuum degasser

The vacuum degasser 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 desanders and decanting centrifuges follow in the arrangement.

degassing equipment

Features of Vacuum Degasser

High efficiency of pumping: Westpetro vacuum degassers use water ring vacuum pump to ensure a high efficiency of pumping ability.
High efficiency of separator: Multilayer wrinkle shaped separation umbrella makes big separation area.
Automatically control: Stainless steel floating ball automatically adjusts the vacuum degree.
Big Flow Rate: Discharge by high efficiency jet device.
Easy Maintenance: Wide maintenance door providing an easy maintenance
Certificates: ISO 9001 – 2000 certified.

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.

 

Necessary degassing equipment -vacuum degasser

Vacuum degasser is an necessary degassing equipment of solid control system. 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.

Function and location:

Vaccum Degasser 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 equipment (if utilized), shale shakers and mud conditioners (if utilized).

vacuum degasser

Unique structure:

Skid-mounting simplifies spotting and installation. The self-contained unit consists of a cylindrical vacuum tank with an internal baffle system, vacuum pump, jet nozzle and three-way float valve.

Working principle:

Gas-cut mud is drawn into the tank through a vacuum created by the discharge jet and the pump. The mud is dispersed in a thin layer over the full-length baffle and, as the entrained gas is freed, it is recovered by the vacuum pump. The gas is discharged at a safe distance from the drilling operation while the restored mud is returned to the drilling fluid system.

DC Solid control main has four types vacuum degasser, respectively are ZCQ240, ZCQ270, ZCQ300 and ZCQ360. 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.

Benefit of use vacuum degasser

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.

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.

vacuum degasser

The vacuum degasser uses 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.

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.

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

Necessity of mud gas separator in drilling site

Mud/Gas Separators are ideal for use where drilling is likely to encounter large volumes of gas. The technology is especially beneficial in sour gas environments or when drilling with an underbalanced mud column.

Function of mud gas separator

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.

mud gas separator

Dangerousness if not use mud gas separator

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.

Classification of mud gas separator 

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 Mud gas separator, according to the pressure.Mud gas Separator is your best choice to prevent drilling mud invasion.

 

Maintenance of vacuum degasser

Vacuum degasser for drilling fluid processing applies to all types of mud purification system. It plays a very important role in
recovering the proportion of mud, steadying viscosity performance of fluid and reducing drilling cost. At the same time, it can also
be used as a high-power blender when the drilling fluid has no gas.

The maintenance of vacuum degasser for drilling fluid processing in daily use is more important than the repair after it breaks down.
So I’d like to introduce several tips about the maintenance.

vacuum degasser

Firstly, the vacuum degasser for drilling fluid processing should be washed after use. The rotor and the suction pipe in the vacuum
tank should be cleaned. You should cut off the power supply, remove the blocking plate of the hole, and check components whether it
is damage or not. You could wash the tank wall and the rotor by using high-pressure pipe. All the cleaning work should be done after
each use to ensure the normal use.

Secondly, the top cover of vacuum tank should be cleaned once a week in order to avoid debris blocking the gas channel. When it is
washed by water, you should rinse off the vacuum line and remove the screw plug and table seat. High pressure pipe is inserted into
it for 3~5 minutes each time.

Thirdly, for the vacuum pump, you should always check working condition of bearing and lubrication condition. The bearing is 15~20
degrees higher than ambient temperature on normal working condition. When working temperature of vacuum degasser for drilling fluid processing is higher than 30 degrees, you should always check the vacuum gauge, replace water in separator of steam and water in
time, and maintain the water temperature less than 35 degrees.

Vacuum degasser and mud gas separator

Vacuum degasser and mud gas separator are all the degassing equipment in oil&gas drilling fluid recyclong system. But working performance is different, now I will introducing its difference of vacuum degasser and mud gas separator.

Installation location

Vacuum degasser is usually to be as the second stage solid control equipment which is located the back of shale shaker and in front of desander and desilter. But mud gas separator is in front of the shale shaker.

mud gas separator

Degassing effect

Vacuum degasser 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. 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. But 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.

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.

The working principle of the mud gas separator( poor boy degasser )is simple. The drilling mud with gas mixture in the bore hole is transferred by mud return lines to the inlet of the mud gas separator, allowing it to impinge on a series of baffles which separates gas from drilling mud. The free gas flows into the flare line to be burned and the mud discharges to the shale shaker and to the mud tank.

Using effects of vacuum degasser

A degasser is a piece of industrial equipment used during oil and gas drilling operations. It serves as part of a mud system, and is designed to remove gaseous contaminants from drilling fluid.

vacuum degasser

A form of vacuum degasser is utilized in water treatment facilities to greatly reduce the overall gas pressure in a containment vessel. The pressure inside the vessel is usually lowered by means of a pump or blower. The containment vessel for this process is typically constructed of aluminum, fiberglass, or steel.

These units are positioned downstream from mud gas separators, gumbo removal equipment (if utilized), shale shakers and mud conditioners (if utilized), while hydrocyclone desander and Decanting centrifuges follow in the arrangement.

Vacuum degassers are also used in a variety of applications. Small kit vacuum degasser made from polypropylene and polycarbonate materials can maintain vacuum pressure for up to 24 hours and can be used with a vacuum control manifold to allow for fingertip control of vacuum pressure.

What does Vacuum Degassing mean?

Vacuum degassing is a technique of removing dissolved gas from a liquid solution by lowering the pressure inside a vessel containing the solution. Vacuum degassing is often utilized in:

vacuum degasser

Water treatment
Laboratory testing
Soil purification
Vacuum degassing is the only way to make certain grades of steel that are particularly useful in the automotive, aerospace and railroad industries.

vacuum

This process is also utilized for analyzing a material under controlled conditions including:

Air pressure
Temperature
Humidity
Altitude
Electromagnetic radiation
Microwave radiation

Vacuum degassing to remove carbon not only reduces imperfections, but also makes metals more ductile, or easily shaped and formed through cold metalworking.

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