Mud gas separator for drilling mud processing equipment

Mud gas separator (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 dangerous accidents and even blowout accident occurred, if not to treat it timely. Mud gas separator can be used to ensure the drilling process smooth.

Application rang of mud gas separator

Mud gas separator is matching used with throttle manifold, it can break away the free gas in drilling fluid. It can be used to dispose underbalance drilling and hydrothion drilling fluid.

Mud-gas separator operation

In the separator, mud with gas in it from the coke manifold enters the top and falls over several baffle plates. The gas break out of the mud as it falls over the baffle plates and goes to the flare line. The gas free mud falls to the bottom outlet where it goes to the mud tank for circulation downhole.

The flare line conducts gas from the mud gas separator to a flare pit on land rig. The gas is burned or flared in the flare pit. Notes that the flare line outlet is a good distance away from the rig floor, so even when gas is flaring, the crew can still safely work on the rig floor.

Mud gas separator

Mud gas separator

Mud gas separator should meet the requirements

According to the practical experience, the throughput of mud gas separator must be 5 times of the design circulation volume.

The inlet pipe inner diameter of mud gas separator should be equal or bigger than the inner diameter of throttle manifold discharge pipeline.

The inner diameter of mud gas separator discharge pipeline should bigger than the inner diameter of inlet pipeline, mud directly discharged to shale shaker inlet manifold or mud store tank.

The diameter of exhaust pipeline should be 200mm or more bigger.

The gas discharge pipeline can’t installed valve.

Mud gas separator sizing and design selection is important for petroleum well drilling. Welcome to Aipu for the right sizing and fit design for your mud gas separator in oilfield drilling mud.

High efficiency of linear motion shale shaker

Linear motion shale shaker is a high efficiency screening equipment, it can effectively separate solids in drilling mud, it is widely used in mine, coal, smelt, building materials, fireproofing and chemical industries.

The economy of linear motion shale shaker

Aipu drilling fluid linear motion shale shaker is especially effective while drilling top-hole sections where heavy and high-volume solids are usually encountered. In these intervals, drilling shale shakers may generate powerful G-forces and its effective vibrating motion can quickly remove the dense solids from screens and particles from wells.

Principle of linear motion shale shaker.

Linear motion shale shaker is made of hydraulic lift device, vibration motor, explosion-proof switch, foundation, logging tank and screen. It uses double vibration motor, when the two sets vibration motor do the synchronization and contrarotation, the exciting force is produced by eccentric block is cancelled out with direction of parallel with motor shaft line and fold a resultant force with the direction of perpendicular to motor shaft. So the motion of screen machine is linear.

There is a dip in the sifter where is the two motor shaft relatively, in the resultant force of exciting force and gravity the material is throw and do linear motion movement to reach the aim of screening and grading. Usually the modern shale shakers are high speed, linear, fine mesh, multilayer shale shaker. It plays the important roles in solid phase control system.

Shale shaker

Shale shaker

Linear motion shale shaker features

  1. High vibration intensity.
  2. Large screen surface area.
  3. Adjustable discharge angle during drilling.
  4. Simple compact structure.
  5. Reliable and great performance at a competitive price.

Welcome to inquire drilling fluid shale shaker of Aipu machinery. Our company will provide you the best shale shaker and other equipment related solid control with superior quality and most reasonable Price.

Mud tank function in solids control system

The role of mud tank for solids control

Mud tanks play an important role in solids control system. It is the base of solids control equipments, and also the carrier of drilling fluids. Solids control equipments that are all mounted on the top of mud tanks include the followings: shale shaker, vacuum degasser, desander, desilter, centrifuge, mud agitator, slurry pump.

Drilling mud purification  process

Drilling fluids flow into the shale shaker directly after it returns to the surface of the well, and the solids that are removed by the screen would be discharge out of the tank, and the drilling fluids with smaller solids would flow through the screen into mud tank for further purification. A centrifugal pump would sucks the shaker-treated fluids up to the desilter or mud cleaner for further purification. And vertical slurry pump is used to pump the drilling fluids up to the centrifuge, and mud pump would pump the drilling fluids from mud tank into the borehole after it is treated by centrifuge. And the circulation system would continue.

The number of the mud tanks that are needed on the drilling rig depends on the depth of the well, and also the mud demands of drilling. Normally the shale shaker and vacuum degasser and desander are mounted together on the same mud tank as the first tank at the oilfield, while desilter and centrifuge on the second tank. Also the drilling rig has other different tank as reserve tank, emergency tank, etc.

Mud tank

Mud tank

Aipu designed mud tanks for oil gas drilling, and also the CBM and HDD drilling application, with the sales of mud tanks to over 40 countries, Aipu Solids Control have the capability to design the customized mud tanks suits for all your application for the drilling.

The advantages of screw pump

In today’s upstream and midstream oil and gas environment, screw pumps are playing a larger role in what has traditionally been a centrifugal and reciprocating pump market. This is due in large part to technological innovation by screw pump manufacturers and the industry’s need to pump heavier crude oils. Today, we will mainly talk about screw pump advantage

Long lifetime

Screw pumps with typical lifetimes of between 20-40 years are not unusual.

Screw pump pump capacity

Pump capacity is self-regulating with incoming level

When incoming water-level goes down, at dry weather flow, the screw pump ‘automatically’ pumps less water. Ergo: no control system required to adapt pump performance.

Easy maintenance

A screw pump requires very little maintenance. Compared to (submersed) centrifugal pumps it is next to nothing. Besides that no ‘highly skilled’ maintenance staff are required which makes this type of pump very suitable for remote locations.

Constant high efficiency with variable capacity

The efficiency-curve of a screw pump is flat on the top. Due to that efficiency characteristic, the screw pump offers even high efficiency when it works at 50% of its capacity.

Screw pump

Screw pump

Running without water

A screw pump can operate even when there is no water in the inlet. Therefore it is not necessary to install expensive measures (level control etc) to prevent ‘dry-running’’. The lower bearing does not need cooling.

For more information about screw or other solids control equipment, please focus on Aipu solids control continually

High performance mud gun from Aipu

The mud gun also can be called mud mixing gun. It is installed in a mud tank. As we know it is usually used along with mud agitator as mixers for oil rig.

The structure of drilling mud gun is simple, flexible operation and easy to use. A mud gun is the ideal equipment to guard against precipitates in a solids control system.

Mud gun application

Research shows that the effective depth of mud gun is only 1.5~2.7m, the size is related with drilling fluid density, viscosity and nozzle speed. In using process, we should pay attention to mud gun nozzle cleaning, prevent mud nozzle blockage, and pay attention to mud gun valve adjustment, according to the density of the mud to adjust the valve size.

In drilling fluid solids control system, only use drilling mud gun is not enough for stirring, we also need mud agitator, but for the dead angle of mud tank, it is indispensable equipment.

Aipu high performance mud gun

Aipu high performance mud gun

Aipu NJQ series mud gun parameter

NJQ50 holds 2” diameter, and 2” valve can be butterfly or gate valve, then the connector size should be also 2”. The pressure can be normal pressure (0.6Mpa) or high pressure(1.6Mpa), the nozzle number will be customized as 3 or 1. And there will be rotation angle by manual rotation.

There is another common type NJQ80. Almost same with above one just the diameter, valve, connector, etc. dimension will be 3”.

Aipu solid control production of mud gun can also be used to clean mud tanks, jet effect is good, clean sing the area, the device structure is simple, flexible, easy to use, solid control system is the ideal anti-settling device. If you need mud gun please inform us immediately.

How to maintain jet mud mixer?

Jet mud mixer can be used to change the fluids or mud density, viscosity by adding and mixing bentonite. Connected by manifold valve, jet mud mixer is composed of sand pump, jet hopper and mixer. Four models of jet mud mixer are available as below. Aipu can provide jet mud mixer as per customer requirements.

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.

How to maintain jet mud mixer

In order to make the installation and operation of jet mud mixer to be more efficient, attentions should be paid to the following questions:

1. Select jet mud mixer that suitable to drilling fluid solid control system. Normally, to most solid control system, a mixing hopper is just enough, if the drilling fluid circulation rate is bigger than 4550L/min, consider using a capacity of 4550L/min mixing hopper.

2. Keep the distance of line pipes and mixing hopper as short and straight as possible. Selection of pump and motor should based on the system requirements of pressure head and flow rate. During all operation, Venturi tube can play a good role, especially when the system back pressure will reduce the drilling fluid mixing hopper working efficiency, venturi tube allows fluid to move to higher height than the hopper in the vertical direction, in many cases, mixing hopper is placed in horizontal direction, while the downstream pipeline is placed higher or equal to the height of the drilling fluid tank top.

Jet mixing pump

Jet mixing pump

In the drilling fluids processing system for petroleum drilling and horizontal directional drilling, Jet mud mixer plays an important role and is used widely. Aipu solids control can provide you high performance jet mud mixer to cater your special demand. If you are interested in or need jet mud mixer and other solids control equipment please inform us freely.

Drilling mud tank structure

A mud tank is an open-top container, typically made of square steel tube and steel plate, to store drilling fluid on a drilling rig.

What is made of mud tank?

Mud tanks are divided into square tanks and cone-shaped tanks according to the shape difference 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. The mud tank surface and passages are made of slip resistant steel plate and expanded steel plate. The mud tanks are made of the side steel pipe, all of the structure can be folded without barrier and pegged reliably.

The surface of the tank is equipped with a water pipeline for cleaning the surface and equipment on the tank, it uses soaked zinc processing for the expanded steel plate. The ladder is made of channel steel to take responsibility the body, the foot board is made of expanded steel plate. The two-sided guard rail are installed the safe suspension hook. The mud tank is designed the standard shanty to prevent the sand and the rain. The pipeline is installed in the tank to preserve the warm air heat.

Mud tank installation and use

A tank is sectioned off into different compartments. A compartment may include a settling tank, sometimes called a sand trap, to allow sand and other solids in the drilling fluid to precipitate before it flows into the next compartment. Other compartments may have agitators on the top, which have long impellers below inserting into the tank and stirring the fluids to prevent its contents from precipitating. And mud guns are often equipped at the corners of the tanks’ top, spraying high-pressed mud to prevent the drilling fluids in the corner of the compartment from precipitating, typically for the square tanks.

Mud tank

Mud tank

The tanks are generally open-top and have walkways on top to allow a worker to traverse and inspect the level of fluids in the tanks. The walkways also allow to access to other equipments that are mounted on the top.

The mud tank plays a critical role in mechanically removing destructive solids and sediment from costly land and offshore drilling systems. For any questions please come to Aipu solids control.

The solids control equipment maintenance

Among the modern oil companies in our country, there have higher requirement to drilling equipment performance. After using a long time, drilling equipment maybe have a little abrasion. This abrasion has a bad impact on the machine. As a result, we should understand how to maintain drilling equipment, furthermore, we should regularly operate all drilling equipment to avoid abrasion as far as possible.

Standard operation to drilling equipment

The company should regularly give training and assess to operators. Because whether the operating equipment is operated normally, and they operate these drilling equipment according to relevant requirements directly depend on the incidence rate of drilling equipment. As a result, during the process of operating these drilling equipment, workers should do the standardized operation. For example, before starting the drilling equipment, workers should check whether the cold liquid is enough according to the specification. Because during the pre-heating period, after the cold liquid and engine oil reach certain temperature, it could begin to work normally. However, some operators do not operate it in accordance with the specification due to impatience and carelessness, which will cause a serious wastage of drilling equipment and increase the incidence rate of drilling equipment.

Do the mandatory maintenance of drilling equipment

In general, the malfunction reason of drilling equipment is caused by overload operation of drilling equipment. Workers make an analysis about the malfunction of drilling equipment and find that most occurring of malfunction is due to insufficient exam and maintenance of drilling equipment. As a result, we should maintain and check these machine regularly and make them in the good condition. At the same time, workers should make full use of preventive maintenance system to these machine and do mandatory maintenance to these machine.

After the brief introduction of how to maintain drilling equipment, we believe that you will deeply understand the importance of maintaining drilling equipment and why to maintain drilling equipment.

Solids control equipment


The shaker screen classification and choosing

Shaker screen in drilling mud process system plays a major role by removing particles larger than the mesh size.

The classification of shaker screen

Generally speaking shaker screen can divide a lot of kinds

First, according to brand or model:

1. Derrick FLC500 PWP Shaker Screen

2. NOV Brandt VSM300 Shaker Screen

3. MI-Swaco Mongosse Shaker Screen

4. MI-Swaco ALS Shaker Screen

5. Derrick FLC2000/48-30 PMD Shaker Screen

6. NOV Brandt Cobra /King Cobra Shaker Screen

Second, according to installation method:

1.Soft hook edge shaker screen

2. Hard hook edge shaker screen

3. Frame screen

Third, according to screen surface.

  1. Flat shaker screen
  2. Corrugated shaker screen.

Shaker screen choosing

Shaker screen is main part of shale shaker. Any type shale shaker remove solids by shaker screen to reach high separating efficiency. However, the screen is wearing parts and easily damaged in shale shaker operation. Some clients often need to change shaker screen. How to choose the durable shaker screen  become an important and critical problem to most clients.

Shaker screen

Shaker screen

Choosing shaker screen, we should pay attention to the following items.

  1. According to the characteristics of separated material to select suitable shaker screen.
  2. Calculate the screen mesh size and then purchase a suitable shaker screen.
  3. In order to meet the need of screening and avoid damage shaker screen in drilling process. After confirming the mesh size of shaker screen, we should also have a detailed standard to confirm the aperture.
  4. In the condition of confirming mesh diameter, we should choose shaker screen with coarse mesh wire and uniform shape as far as possible.
  5. We had better choose the screen that is produced by regular manufactures with shale shaker production qualified for many years.

Aipu machinery is a professional solids control equipment manufacture, especially in shaker screen producing and design with rich experience. Aipu solids control will be your best choice.

Knowing more details for flare ignitor

Flare ignition device in oilfield drilling mainly is used to burn the exhausted poisonous gas from poor boy degasser. Usually, the flare ignition device will be working together with the mud gas separator to light harmful gas. It can provide us more safe condition during well drilling and fire the noxious gas thus to protect the environment and human healthy.

Structure of flare ignition device

The flare ignition device has a simple structure of gas guiding pipe and high pressure ignition. The ignition is controlled by a small control panel installed on the vertical pipe, and at the foot of this device, we design a natural gas tank to store natural gas for ignition. The potential transformer could convert the electrical pressure from 220 volt to 16000 volt. At connecting point of the flare ignition device to hoses from the drilling site, we install a backfire valve to prevent the fire get in the hose concurrently.

Notes before using flare ignition device

Pay more attention on torch to prevent any break on ignition guideline insulation. When we install torch, please consider to choose safe place with lower fire possibility. The torch base must be stable with level pedestal and use rope to assist if necessary.

Flare ignitor

Flare ignitor

The electric components should be under good condition without wet or quantity dust. Moreover, ignition device is commonly used together with poor boy degasser.

Besides the drilling site, flare ignition device also could be used in all the place where flammable and poisonous will produce. Welcome contact with us if you are interest in this device and other solids control equipments, such as shale shaker, mud cleaner, centrifuge, centrifugal pump, vacuum degasser, mud agitator, etc. Aipu will show professional solution in offer products and service.