Working principle of KOSUN drilling fluid degasser

In order to separate the gas effectively in the drilling, so an efficient degasser is essential to the safe and productive drilling operations. Since gas is practically insoluble in water, it is relatively easy to detect and remove. By comparison, gas is easily soluble in oilbase muds – its detection is more difficult as well as its removal. Regardless of the composition of the gas encountered, gas existing in the mud can decrease efficiencies in rig pumps, centrifugal pumps and associated operational solids control equipment. The goal is to “Keep the pumps Operating”.
Drilling fluid vacuum degasser ranks as the second stage of oil drilling mud solids control system. The drilling mud that are separated by the first stage device — shale shaker flows into the setting compartment of the mud tank. The drilled cuttings would settle into the setting pit, and the drilling fluids would flow over and into the second compartment. A sand pump would be used to pump the drilling mud from the second compartment up to the vacuum degasser, The drilling mud enters into the vacuum tank through the feeding pipe, and rotates by the rotor of the degasser, by the effect of centrifugal force, the drilling fluids would be threw to the inner wall of the vacuum tank, and the gases that migrate into the mud would be separated from the mud. Vacuum layer would be generated by the vacuum pump that are mounted on the skid of degasser, so the gases that are separated would be pumped out to the water-gas separator by the vacuum pump and be discharged through the relief linepipe and finally be flared by the electrical ignition device at a place that are 60 to 80 meters away from the drilling rig.

Working principle of KOSUN vacuum degasser
The vacuum degasser uses the suction of the vacuum pump to establish an under balanced pressure area in the vacuum cylinder and causes the drilling fluid into the hollow shaft of the rotator through suction pipe under the atmosphere pressure, and then lets the fluid spray to the walls of the cylinder from the windows on the hollow shaft, now the gas bubble cut in the mud may break and run off in the function of vacuum pump suction to a safe area due to the fluid collision and bubble separator. However, the mud will enter the drainage cavity forced by its self-weight and pass the rotator and discharge off the cylinder. In addition, drilling mud can enter the pump cylinder only through the suction pipe, and can’t be sucked in through the discharge pipe because the vacuum pump and the master motor are started simultaneously and the rotator connected to the motor will revolve at a high speed.
KOSUN is capable of providing customers with such three series as oil & gas drilling solids control equipment, oilfield decanter centrifuges and drilling waste treatment equipment, including 25 categories of products, which are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, industrial wastewater treatment, environmentally friendly sewage treatment, waste oil recovery, drilling mud system, etc.
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The mud/gas separator in the drilling mud system

The mud circulation system with mud gas separator, in oil drilling solids control system, the 1st phase cleaning equipments of mud circulation system is shale shaker, which is fed the mud from high pressure manifold, the mud gas separator is fed mud from the chock manifold. When much of harmful gas is found during drilling, they close the valve to stop feeding the drilling fluid shale shaker, and open the valve to feed to mud gas separator, and use hundreds of exhaust pipe to transfer the harmful gas from mud gas separator to a place far from well head, and use flare ignition device to burn it.

The drilling mud system with mud gas separator
Mud circulation system is also called mud cleaning system, mud recycling system, solids control system, Usually if a mud circulation system with mud gas separator, it is usually oil & gas drilling or geothermal, it can not be HDD or water well drilling. Mud gas separator is horizontally installed on the skid with the chock manifold on it together, it is easy for transportation.
KOSUN design and manufactured mud circulation system for the rig from 350HP to 2000HP, both for drilling rig and workover rig for land drill. The design including layout drawing, equipments specification, mud tank volume and storage, flow process drawing and various pipeline drawings. We also accept that for some far regions, KOSUN provide production drawing of the mud circulation system or provide installation drawing of equipments, and clients make the mud tank in local company to save freight charge, KOSUN provide all the necessary equipments.
KOSUN has own designed standard solids control system,including arctic solids control system,mobile solids control system,skid-mounted solids control system.
In China solids control industry, KOSUN is a solids control leader and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuge, drilling waste treatment equipment and drilling security equipment, including 25 categories of products,such as shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, drilling mud decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank, complete solids control system,etc.
http://www.kosungroup.com/products/solids-control-equipment/mud-cleaner.html

Shear pump in drilling fluid solids control

Shear pump is on the basis of existing centrifugal pump theory, through the improvement to develop a new, efficient centrifugal pump, is designed for quick preparation and dispose drilling fluid in the solids control equipment system.
KOSUN series shear pump is new types equipment of KOSUN which provides the fast configuration and treatment mud for the user, the user satisfy with configuration high performance mud. This series Shear Pump can mix effectively and hydrate completely the material added in the drilling fluid, save the mud material , reduce the time of configuration, and provide the high performance mud for the well drilling. In use process of shear pump, we should notice some details: 1 After using shear pump, we should use clear water flush pipeline and shear pump, to avoid leftover block runner and nozzle of impeller. 2 Bearing bore is filled in grease about 10~20ml every other week, combination seal cavity is filled in grease about 10~20ml every day. 3 In winter, if the pump will not used for a long time, drilling fluid in pump shell should be discharged, to avoid drilling fluid freeze.

Features and Functions of KOSUN Shear Pump
1.KOSUN series shear pump can greatly improve hydration degree of soil particle moving. The dispersion of soil particle moving in the water and degree of hydration depends on the water electrolyte content, time, temperature, the surface can be the quantity and the concentration of cationic replacement, in other conditions, JQB series shear pumps can save bentonite above 30%.
2.KOSUN series shear pumps can make polymer shear dilute the hydration, as soon as possible.As the result, the mud of the use of high molecular weight polymer, directly add to not easy hydration, so the polymer need the shear. Shear pumps can provide high shear efficiency, speed up the polymer diluted, hydration process.
In China solids control industry, KOSUN is a solids control leader and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuge, drilling waste treatment equipment and drilling security equipment, including 25 categories of products,such as shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank, complete drilling mud system,etc.
http://www.kosungroup.com/products/solids-control-equipment/mud-cleaner.html

Desander, a kind of solid control equipment for sale in Pakistan

Desander, a kind of solid control equipment, is a combination of cyclone desander and shale shaker of drilling fluid. The hydrocyclone is made from high chromium cast iron for good rigidity.
The KOSUN desander is designed on the basis of particle setting principle. The separated medium-drilling liquid enters along the inner wall of clone spirally, depending on the pressure and speed produced by sand pump. Under the function of centrifugal force and gravity, the larger particles are sunk along the inner wall of clone spirally and drained from bottom outlet to be separated in shale shaker with smaller mesh. Other mediums are ascending along clone spirally to enter the third–class separation device from overflow outlet for further purification.
KOSUN desander is the second phase solids control equipment, it can be combine with desilter, to treat the drilling fluids, the most common cone is 8” or 10”, mainly separate size of 47-76μm solids particles out from drilling fluids. According to clients’ treating capacity can choose the number of cones.

Desander, as stated earlier, have no moving parts. The larger the internal diameter (ID) of the desander is, the greater the amount of fluid it is able to process and the larger the size of the solids removed. Desander (10 in.cone) are able to remove roughly 50 percent of those solids within the 40-50 micron range at a flow rate of 500 gallons per min (gal/min), while desilter (4 in. Cone) are able to remove approximately 50 percent of those solids within the 15-20 micron range at a flow rate of 60 gal/min. Micro fine separators are able to remove around 50 percent of those solids within the 10-15 micron range at a flow rate of 15 gal/min. Desander is typically positioned next-to-last in the arrangement of solids control equipment, with decanting centrifuge as the subsequent processing unit. Desander are preceded by gas busters, gumbo removal equipment (if utilized), shale shakers, mud cleaner (if utilized) and vacuum degasser.Desander is widely used in oilfield drilling.
Features & Benefits
1. Polyurethane(PU) Material or high-chromium cast iron for desander cones with longer using life.
2. Clamp type for easy maintenance.
3. Compact design with small footprint.
4. Flexible options for 1, 2 or 3 for different capacities.
5. Flexible fast connection is available for user assembly.
Except,KOSUN supplies other solids control equipments,including shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank, etc.Complete solids control system including arctic solids control system,mobile solids control system,skid-mounted solid control system,etc.Drilling waste management including vertical centrifuge,screw conveyer,hi-g dryer,screw pump,etc.
http://www.kosungroup.com/products/drilling-waste-management/

Vacuum Degasser in Drilling Mud Cleaning for Sale

Vacuum Degasser as a second stage cleaning equipment is mainly use to remove gas immerged in mud. It is usually fixed after shale shakers. Vacuum degasser ensures proper mud weight pumped down well to prevent potential blowout in drilling. It’s a very important equipment in degassing process.
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, shale shakers and mud cleaners, while hydrocyclones and centrifuges follow in the arrangement.
Degasser belongs to the vacuum degasser, namely use the suction effect of the vacuum pump to create negative pressure region in the vacuum tank, and the mud enter the hollow shaft of the rotor through the suction tube under the action of the atmospheric pressure. And then the mud spray to the tank wall through surrounded windows of the hollow shaft. As collision and the function of separate wheel, the mud separated into thin layers, bubble immersed in the slurry breakup and gas escape. Gas is discharged to safe zone from gas separator through the suction of vacuum pump and separation of gas-water separator. the mud is discharged outside of the tank by impeller. As the main motor start first, the impeller associated with the motor is in a high-speed rotation state, so mud gets into the mud tank only from the suction pipe not be sucked from the liquid discharge tube.
Features & Benefits
1. Self contained unit without need for centrifugal pump to feed drilling mud.
2. Eliminate corrosion and reduce reparation and maintenance costs.
3. Short footprint,can be installed in smaller spaces.
4. Degasser can act as a big agitator for the drilling mud, which helps the treatment for desander and desilter.
KOSUN has been providing the drilling fluid solids control equipment and solids control system for more than 20 years,main solids control equipments including the shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank, etc.Complete solids control system including arctic solids control system,mobile solids control system,skid-mounted solids control system,etc.KOSUN can supply a professional oil drilling waste management integrated service for the customers achieve the requirement of the related law of the local government.Drilling waste management including vertical centrifuge,screw conveyer,hi-g dryer,screw pump,etc.Security equipment including ignition-device,mud/gas separator.
http://www.kosungroup.com/products/solids-control-system/mobile-solids-control-system.html