Mud tank for oil drilling mud system

Mud tank systems are a critical component of any drilling operation for maximizing solids control efficiency and effectiveness.

Mud Tank Feature & Benefits

Mud tank is an indispensable part in mud circulation system, and it can complete weighting, mixing, solid-liquid separating, degassing and other processes. Drilling rig mud tank carries the mud circulating between well head and mud pump. The solids phase particles in mud are separated stage by stage through relevant solids control equipment on mud tanks as to make the fluid meet drilling requirements after mixing and weighting system

Drilling mud tank classification

Based on functions, mud tank includes active tank, circulating tank, mixing tank or suction tank, chemical/pill tank, storing tank etc.

Mud tanks for solids control systems are divided into square tanks and Cone-shaped tanks according to the shape of the tank bottom. The body of the tank is made by welding the steel plate and section, using the smooth cone-shape structure or the corrugated structure.

A drilling rig normally has two tanks. One tank is sectioned off into compartments that may include a settling tank, or sand trap, to allow sand and other solids in the drilling fluid to precipitate before flowing into the next compartment. Other compartments sometimes have agitators used to stir the fluid.

Mud tank

Mud tank

Tanks for oil drilling mud system

Generally speaking, tanks for oil drilling mud system always larger than others because of it’s larger treating capacity and different of request . It will including shaker tank, desanser or desilter tank , active tank , mixing tank . Tank size depending on mud requirement , layout request and habit .

Aipu proprietary tanks are designed to assist with proper solids control. And since each mud tank can be constructed in a variety of sizes and styles based on your application requirements, it’s easy to customize our equipment to your project needs. If you need it, please contact us freely.

Mud gun in drilling fluids processing system

Mud gun is designed for solid control system of drilling rig. Drilling fluid mud gun is one kind of special tool which mainly uses in the drilling mud circulation system and prevents the mud precipitates. The structure of drilling fluid mud gun is simple, flexible Operation and easy using. Drilling mud gun is the ideal equipment to guard against the precipitate in mud tank for fluids processing system

How to equip and maintain mud gun?

The equipment of the mud gun, you can put the mud gun which works with stack sizer in the drilling fluid tank directly and connect the import flange with the mud gun pipeline. The output of the sand pump should be connected with the mud gun pipeline to provide the drilling fluid to the mud gun conveniently.

To maintain the mud gun and the stack sizer, the mud gun and the stack sizer have to be oiled every three weeks and the lubrication has to be added to the sealing part at least once. You should inspect the connection of the pipeline and the flange regularly to see whether the bolt is loose or not. If so, you should fasten the bolt in time.

Mud gun features and benefits

1. Aipu mud gun can be adjusted by rotating at a wide angle.

2. The jet nozzle used is both replaceable and wearable

3. Optional high pressure and common pressure

2. Swiveling type and fixed type

4. Reliable standard material

5. Simple design and compact


1. Adapts better according to certain working condition

2.1 or 3 nozzles for option

3. Can do mixture complete without any blind angle

4. Durable enough low maintenance

5. Easy to operate

Working mechanism

Drilling fluid under certain pressure and flow rate is taken into the mud gun by centrifugal sand pump, and spouts out through the jet nozzle, then it can be agitated and mixed by turning the rotary handle. It also can be used to clean out the deposited sand at tank bottom.

Mud gun

Mud gun

NJQ Series Mud Gun Parameter




Interface Dia.



Working Pressure



Nozzle Number



Rotation Angle



Mud gun in drilling fluids processing system

Mud gun in drilling fluids processing system is always located at the corner of the tank to keep solids from settling. Mud gun always applied together with mud agitator that installed at the center of mud tank. In drilling mud processing system, mud gun often used in trip tank, mud mixing tank and mud storage tank

Mud gas separator maintenance

Mud-gas separator is a special kind of equipment for primary degasification from gas-bearing drilling fluid in the process of drilling. Mud gas separator and flare ignitor are commonly used together as a complete gas disposing system.

Separating principle of mud gas separator

The gas-bearing drilling fluid from throttling manifold flows into decompression tank through incoming-stream manifold of separator, then enters the separating tank through output pipe. The gas-bearing drilling fluid dashes on a series of baffles, it makes the bubbles in drilling fluid break up. And when the drilling fluid flows through the surface of baffles, it becomes turbulence to enable the gas separate from it. The bubbles are kept on the surface of baffles and inflate and break up.

Mud-gas-separator maintenance and attentions

1. Open the screw plug for sand discharge in the manifold side to remove sand when the mud discharge manifold is blocked.

2. The separator assembly is pressure container, so it must be used in designed working pressure and surroundings. Overpressure work is forbidden. The safety valve should be checked at least once a year.

3. The baffle should be checked after a well has been completed. Replace it if there is something wrong.

4. Welding on the separator assembly is forbidden.

5. The exhaust pipe and liquid discharge pipe should be arranged separately when the separator is paralleled. Uniting the pipes is forbidden.

Mud gas separator

Mud gas separator

Aipu machinery has won high recognition and praise from domestic and abroad with science core technique and a lot of innovative patents. At present, Aipu Machinery’s business scope has covered the whole world. Welcome to Aipu solids control inquiry.

YZ Submersible slurry pump structure and parameter

(YZ) slurry pump info

YZ Submersible slurry pump is with structure of vertical single stage and single suction system overhung centrifugal pump, it is made of abrasion-resistant alloy, it can convey medium with high concentration particle. There is no bearing and Gland Seal between impeller and pump body, so the slurry pump is maintenance-free and high temperature resistance, the slurry pump is the ideal centrifugal pump for oilfield drilling industry.

YZ(S) Slurry Pump Parameter







m3/h l/s














































































YZ Submersible slurry pump structure

YZ Slurry  Pump is the cantilever pump structure of single stage and single suction, with the bearing housing, supporting, intermediate pipe connecting the pump hydraulic components, the water is discharged out from the drain pipe parts, pump impeller is for semi-shrouded with the agitating vane on the vane extended, the main characteristic of this pump is the underwater pump shaft parts have enough rigidity, the impeller and pump shell have no bearings, no shaft seal, which can transport the greater medium of solid particles.

YZ Slurry Pump

YZ Slurry Pump

The length of inserting the water by slurry pump is between 800 and 2000, the suction pipe can be matched in case of need. The shaft seal runs into the underwater pump without setting up the shaft seal, drive should be installed the vertical motor on the supporting seat connecting with coupling and pump.

If you are interested please contact us for more information

The reason of slurry pump abnormal operation

Slurry pump brief introduction

Slurry pump is used to transport solids liquid mixture. Solid  liquid pump has many types, including centrifugal type, screw-type, mixed flow type.

Actually, the slurry pump that we have called is a kind of centrifugal solids liquid pump

Slurry pump applies to conveying solids liquid mixing with strong corrosive characteristics and containing hard solids particles.

Slurry pump classification

  1. According to arrangement: horizontal slurry pump,   submerged slurry pump.
  2. According application: ash pump, drilling mud pump, gravel pump, mining pump and foam pump.
Slurry pump

Slurry pump

The reason of slurry pump abnormal operation

First, the slurry pump does not absorb water

There are many reasons may cause submersible slurry pump doesn’t absorb water, the main causes include: suction pipe is blocked and impellers are damaged, to solve these two problems the main methods are: clean up the blockages in the suction pipe and repair or replace the impellers.

Second, the slurry pump power is too large

Main causes of submersible slurry pump power too large include: excessive packing compression, pump friction, bearing damaged and too large fluid flow, the four problems solving methods are: relax packing gland bolts, adjust the pump internal clearance, repair or replace damaged bearings, adjust pump operation.

Third, slurry pump bearing heating

Causes of submersible slurry pump bearings heating are generally derived from lubricants and bearings, including lubricants are not clean, lubricants in bearings are too much or too little, bearings damaged, etc. Methods of excluding bearing heating faults are: use clean lubricants, add lubricants for the bearings based upon requirements, repair or replace bearings.

Aipu solids control is a professional drilling mud equipment manufacture in china. We can provide a series of drilling mud solids control equipment to meet your different requirement. Our high performance slurry pump get good feedback from many clients all over the word. Our purpose is to service clients, make clients satisfied.

If you are in interested in slurry pump or other solids control equipment, please do not hesitate to contact us.

Flare ignition device from Aipu solids control

Flare ignition device is a special oil drilling equipment to handle the invaded gas, it is also an effective equipment to handle the tail gas and invaded natural gas in refinery and natural gas collecting and distributing station. It can ignite the harmful invaded gas to eliminate the hazards to the environment, so it is also a security environmental protection equipment. This equipment can match with mud gas separator, and is usually used in oil & gas drilling and CBM drilling.

Parameters of flare ignition device



AFI 20/3

Torch Dia


Burner Height




Ignition Voltage


Ignition Frequency


Features and benefits

1   High quality standard steel material

2   Compact design and light weight

3   Connected with H2S poor boy degasser by flare line.

4   Burn H2S and other poisonous gas efficiently and completely

5   High ignition frequency

2   Save space, easy to handle and transfer

4   Protect drilling site and keep work safe

Ignition device maintenance measures

1. The instrument should works in the cool and dry place, don’t shine for a long time and forbidden to insolate, rain.

2. If the remote control can’t get the signal under normal circumstances, and the remote control ejector indicator is darken shows remote control battery is undervoltage, need to change battery.

Flare ignition device

Flare ignition device

3. In order to ensure the accumulator can normaly work when have no alternating current, when have current request use 220v alternating current.

4. The ignition needle need often scrubbed, eliminated teh carbon deposition and sundries.

For further information or any question please feel free to contact Aipu.

Jet mud mixer from Aipu solids control

Jet mud mixer is used to make and mix drilling fluid to change the density and viscosity. Drilling fluid jet mixer can do the fluid weighting and mixing for solids control system used in 1500m-9000m drilling.

Jut mud mixer structure

Jet mud mixer consists of one centrifugal pump, one feeding hopper and one jet mixer. Generally, there are still pipes and valves connecting all these parts, the mud hopper matched on the jet mud mixer always 4“and 6”. Jet Mud Mixer could be installed on a skid to be a separate unit, sometimes the jet mud mixer is installed on the mixing tank and could be transported together with mud tank. When the Jet Mud Mixer is independently installed on the skid, a control panel could be offered together for easy operation.

Usage of jet mud mixer

According to users custom we can call mud mixing pump as jet mud mixer also. The mixing pump can be used in HDD mud system, oil and gas drilling fluids system, coal seam drilling mud process system, mine drilling, etc.

We know the HDD is similar with coal seam drilling. Since they request not too large handling capacity. And the users prefer the system hold complete function including process, recycling, and mixing.

Aipu SLH mud mixer parameter





Centrifugal Pump








Working Pressure




Feed Inlet 




Nozzle Dia.




Hopper Size

600 X600m

600 X600mm

600 X600mm


≤100kg /min

≤80kg /min

≤60kg /min

Mud Density 




Dimension 2200×1700×1200 2200×1700×1200 2200×1650×1100





Jet Mud Mixer Features & Benefits

1. Mud mixer is a single jet mud mixer combined with 45 Kw (or 55 Kw) sand pump and a jet mud hopper or a double jet mixer of two pumps and two hoppers.

2. The weighting hopper can be combined with a pump or be used independently with manifold valves with pump.

3. Put the drilling fluid materials (bentonites, barite powder) and the corresponding chemical additives (polymer) into circulating tank for increasing the total.

Jet mixing pump

Jet mud mixer

Aipu is a professional manufacturer for solids control system. We can offer other solids control products besides jet mud mixer. If you want to know more information about solid control system and oil drilling solids control equipment, please feel free to contact us.

How to correctly choose a mud system?

With the rapid development of drilling industry technology, solids control equipment become more and more important in drilling industry to keep drilling mud property. Aipu machinery now share some information with you about how to select a mud system (solids control equipment) for your drilling rig.

Screen selection

The mesh size of screens is measured by the number of holes per square inch on the screen. Different mesh sizes control the size of the cuttings that you remove. The same mesh size will not work in all drilling conditions. Sizes will vary depending on the size of the cuttings and the type of formations you are cleaning.

Shale shakers

Shale Shaker is the most critical equipment for mud system. There are four types of shakers

1.  Circular motion shaker

2.  Elliptical motion shaker

3.  Linear motion shaker

4.  Balanced elliptical shaker

Linear motion shaker has vibration that is induced by a pair of eccentric shafts turning in opposite directions, and it is used commonly in drilling site.

While each shale shaker has a specific place that it will shine like the price, the ability to process heavy clays and rock or fines and ultra-fines. You can choose a suitable type according to your actual requirement in drilling site.

Desander and desilter cones

They depends on the size of the mud system you choose, the cone size will either be 4, 5, 10 or 12 in. Each size cone has a micron cut point, which is the size of the smallest particle that the cone can pull out. The 4- and 5-in. cones have a micron cut of 20 microns and the 10- and 12-in. have a 74 micron cut.

Hydrocyclone cones process the liquid at a rate of 50 gpm with the 4-in. cones, 80 gpm with the 5-in. and 500 gpm with the 10- or 12-in. cones.

Decanter centrifuge for mud system

The decanter centrifuge in mud system is for separation ultra-fine solids, and recovery for barite and it is an expensive equipments in mud system, but it can give you much better performance in drilling process so as to finally save you drilling cost.DSC00091

Vacuum degasser

The vacuum degasser is usually used in mud system for oil drilling rig bigger than 650 Hp.

The above is about how to select solids control equipments for mud system, besides you’ll need to know how to select the mud tanks, this depends on the capacity you need, and the transportation dimension limit, as well as the layout for mounting the solids control equipments for the mud system.

If you want to get more information about solids control equipment, please come to Aipu solids control or focus on our blog continually. Aipu has all the major equipments for drilling mud system and drilling waste management. We are sure to be satisfied you and provide you high quality equipment.

Selection and maintenance of vacuum degassser

Vacuum degasse removes virtually all entrained gases, including hydrogen sulfide and corrosive oxygen, from drilling fluid. It reduces the threat of dangerous and costly blowouts while restoring mud to its original density for reuse in the active mud system.

Selection of vacuum degassers

Vacuum degassers can wipe off the invaded gas from drilling mud quickly, restore drilling mud proportion, keep mud viscosity performance and improve the quality of drilling mud. A vacuum degasser must be used after shale shaker and before centrifugal pump. As when drilling fluid contains gas, centrifugal pump cavitation will occur. Cavitation will not only influence the performance of centrifugal pump, bring noises and vibration, shorten its life but also lead to damage when serious.  There are two functions of vacuum degasser, the first is to ensure the stable performance of drilling fluid, avoid blowout and kick accidents, guarantee the safety of drilling; Second is to ensure the normal working of hydrocyclones. When drilling in deep well, gas and oil gas, vacuum degassers are must-have equipments.

Vacuum degasser daily maintenance

It is necessary to install a vacuum degasser for their removal from the drilling fluids since the invading gases may impact mud properties, cause safety risks and affect the lifespan of some equipment.

1. When the vaccum degasser is rolling, it is necessary to check its vacuum gauge all the time and adjust vacuum degree between 0.03~0.05 to ensure the normal operation.

2. The rotor and suction pipe inside vacuum chamber should be washed clean after the machine is used. Then cut off the electricity, unload the blind, examine the condition of parts, remove the foreign objects and wash clean the inner wall and rotor with high-pressure water pipe.

Vacuum degasser

Vacuum degasser

3. Weekly cleaning should be performed on the head cover of vacuum chamber to keep dirty stuff from blocking gas passage. The gas collector and bubble separator on head cover can be washed by clean water. While doing these, unconnect the vacuum pipelines, undo the pipe plug and gauge stand, then insert high-pressure water pipe for 3-5 mins each time.

5. Lubricate the spindle bearing with 250-300mL grease every other month.

7. In wintertime, immediately discharge the standing water inside mud gas separator and pump as the precautions of possible frost crack. After vacuum pump is dismantled and repaired, please note the concentricity of coupling.

The application of Aipu oilfield drilling mud desander

Aipu oilfield drilling fluids desander is an economical and practical solids removal equipment. Used as the second stage of solids control equipment in solids control system workflow.

The main work oilfield drilling mud desander is to remove the solids entrained drilling fluids with diameter between 45 and 75 microns.

The structure of oilfield drilling mud desander

Aipu oilfield drilling mud desander is the combination of drilling fluids desander and drilling fluids shale shaker. The main structure can be divided into two parts, the upper one is hydrocyclones while the underpart is drilling fluids shale shaker. The whole device is driven by a vibration motor.

The characteristic of oilfield drilling desander

desander is produced by an advanced design, careful engineering, quality materials and finest workmanship which comprising 8, 10, and 12 inches hydrocyclones made of high wear-resistant material and pipelines, the oilfield desander is easy to operate and maintenance. Besides, the underflow can be adjusted for different capacity to meet various drilling requirements.

Oilfield drilling desander parameter


Model                          APCS



8″ or 10″

Working Pressure


Separation Point


Bottom Shaker

Hunter-D shaker or Hunter-M shaker

Vibration Track

Linear or BEM

Vibrator Speed

1500rpm or 1800rpm

Dimension 1500x1200x1900 1850x1600x2000
Weight 980kg 1500kg
Remark 8″cone=30~35m3/h,10″cone=90~120m3/h

Desander operation mechanism

Desander include two 12-inch(305-mm) diameter polyurethane hydroclones slant mounted over the shale shaker. Each desander clone includes four replaceable wear resistant polyurethane sections that are joined together with quick release stainless steel clamps. The desander is furnished with an 8-inch (203-mm) diameter feed manifold and a 10-inch (254-mm) diameter discharge manifold and a 0-60 psi (4.1-bar) pressure gauge. The desander also includes a solids discharge trough to distribute the hydroclone underflow evenly onto the screening surface.



Aipu is a professional manufacturer of solid control 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.  Welcome to our company consulting or visiting any time.