Tag Archives: hydrocyclones

Mud Cleaner in Drilling Fluid Recycling System

The drilling mud cleaner is a major equipment in drilling fluid recycling system,we can design customized cost-effective mud cleaner for customers special needs. Brightway mud cleaner can meet almost all needs for oil & gas well drilling fluids treatment system and HDD mud recycling system.

 

When the mud cleaner handles the weighted drilling fluid, the drilling fluid which is already handled enters into drilling fluid system from the over fall of the swirler. The drill cuttings, barite and a little liquid phase discharged from the under set and go to the highly detail screen. Because of the granularity of barite is 2~74um mostly, it will return to the drilling fluid system with the liquid phase and the drill cuttings which are smaller than the sieve mesh, the drill cuttings which are larger than the sieve mesh will be discharged from screen surface. In this way, mud cleaner cleans the drilling fluid, stabilizes the performance of drilling fluid and recycles the barite and the liquid phase.

 

Mud cleaner is consist of manifold, shale shaker,desander and desilter. First the drilling fluids are sucked up to 0.25Mpa ~ 0.4Mpa by centrifugal pump, and enter into the cones through the side inlet which is normally only 2-1/2″ diameter. The fluids then flow spirally inside of the cone. Effected by the centrifugal force, the heavy solids in the fluids would be throwed towards the inner wall of the cones, go down to the bottem, and discharge through the sand discharge port, while the light fluids would go up and discharge through the upper oulet. The diameter of the bottom discharge port is adjustable, and with a cover of hydrocyclone.

shale shaker

As a leader and professional in China solids control equipment and drilling waste management,Brightway always provides the highest quality equipments and oilfield services and solutions. Brightway provides 25 categories of products, and can also customize packaged design and matching products of oil & gas drilling rigs for drilling company.

Drilling Mud Tank System

Drilling mud tank system is the fluids process system completely with mud equipments and all tanks configuration. Following is some information on our high quality.

 

 

For drilling mud tanks system we can use it in various drilling. The different well drilling conditions will request different fluids system.Drilling fluid system including mud tanks system, the mud process equipments. All pipelines and electrical lines, cables, and all accessory parts. Such as the ladders, hand rail, guard rail, etc.Fluids system equipment mainly is shale shaker, hydrocyclones, decanter centrifuge, centrifugal pumps, mud mixer and mud agitator.

shale shaker

 

What is the mud tanks detail then? Actually, we need almost fluid system include shaker tank, active, storage tank or mixing tank. Sometimes, there will be also the trip tank, pill tank, and swab or test tank.The mud tanks are different size or dimension. It depends on whole mud tanks system capacity or flow mud pump flow rate. Whole mud system including different phases and process steps. We need to calculate all information in detail.

 

 

Brightway can manufacture any type of drilling fluids system on customer requirement.Welcome every client to visit our factory.

Drilling Mud Desander

The desander is an important part of the mining and drilling process. This simple euipment helps filter out grainy solids from drilling liquid.
Brightway drilling mud desander is used as the 2nd stage of solids control for drilling mud, which makes separations between 45 and 76 μm.

desander

Features of Drilling Mud Desander
1,Polyurethane(PU) Material or high-chromium cast iron for drilling fluid desander cones with longer using life.
2,Flexible options for 1, 2 or 3 for different capacities.
3,High mud handling capacity, sand can be removed efficiently.
4,The shaker screen has many advantages such as easy operation, low trouble rate, convenient installation and maintenance.
5,The adjustable vibrating force, angle and mesh size of the shaker enable the equipment possess a high screening efficiency in all kind of strata.
6,The high screening efficiency of the machine can excellently support drillers raise bore and advance in different strata.
7, Compact design with small footprint

 

This type of desander generally is utilized by the petroleum industry. Other industries also use desanders, mostly those dealing with drilling and mining for substances such as natural gas. Companies that manage lakes and dams sometimes use desilter and desander to pass along water and keep it free of impurities.

Operational Details of Solids Control Equipment Part 1

It is quite essential to normally operate any solids control system or equipment in oil & gas drilling. Therefore, Brightway has summed up a list of techniques concerning the equipment operational details based upon actual operations, which will make your drillings more productive with less energy consumption.

solids control system
1. Weak capacity of solids control equipment:
It should be taken into consideration how much the fluids can be injected into mud tank according to equipment’s actual capacity and how much the flow rate is in mud agitator in order to guarantee the quality of processing the fluids.

mud cleaner

 

2. Return of the rough solids removed by shaker screen in mud cleaner:
If the liquid flow all returns to the system, that means nothing has been taken away. Thus, the solid particles left on the screen of mud cleaner ought to be removed.

vacuum degasser
3. Installation of vaccum degasser at the downstream of hydrocyclones:
If the degasser is placed behind the equipment supplied by centrifugal pump, the pump can be blocked by entraining gases. Entrained fluids will reduce its flow rate and working efficiency of hydraulic cyclones. If the gases are poisonous, it is better to remove them in the first mud tank rather than the third or the fourth one.

Desander & Desilter in Solid Control System

As two indispensable equipments in the solid control system of oil & gas drilling, desander & desilter are responsible for separating the small solids in the drilling fluids which has been treated by the shale shaker & vacuum degasser. The desander takes care of the solid with diameter 45~74μm, and 15~44μm for desilter.

solids control system

Normally desanders are mounted on the top of the first mud tank together with shale shakers & vacuum degassers, while desilters are mounted together with centrifuges. Sometimes to save the top area of the mud tank, desander & desilter are combined together to work as high efficient mud cleaner.  Desanders & desilters are consist of hydrocyclones, high pressure flow pipes & a small shale shaer at the bottom. For desanders & desilters, only one vibration motor is used to drive the screen basket. while for high efficient it would need two motors. There would equiped two 10″ or 12″ diameter iron hydrocyclones for desander just as the solids need to be separated is relatively big, and include some sands in the mud. While for desilters, it would equiped 6 to 12 pcs 4″ diameter hydrocyclones which are made of wear resist plastic.

hydrocyclone

Working Principle of the hydrocyclones.

For the work principle of hydrocyclones, it works like this. First the drilling fluids are sucked up to 0.25Mpa ~ 0.4Mpa by sand pump, and enter into the cones through the side inlet which is normally only 21/2″ diameter. The fluids then flow spirally inside of the cone. Effected by the centrifugal force, the heavy solids in the fluids would be throwed towards the inner wall of the cones, go down to the bottem, and discharge through the sand discharge port, while the light fluids would go up and discharge through the upper oulet. The diameter of the bottom discharge port is adjustable, and with a cover of hydrocyclone.

desander

As an quickwear part of shaleshaker  desander ,desilter, the lifetime of hydrocyclones is not so long as other parts. So it is neccessary to check their working condition, and replace them with new ones. As a whole set of the hydrocyclone, clamps & flang are also replaced together with the hydrocyclones.

Structure and properties of the mud cleaner

Mud cleaner, also known as removing sand and mud machine. It is the two or three level of drilling mud circulation of solids control equipment, the cyclone for removing sand and mud hydrocyclone underflow vibrating screen and three for one. It is also known as removing sand and mud machine, which has the advantages of compact structure, small space occupation, powerful, is the ideal equipment for two or three solid control of drilling mud.

Mud cleaner production company, by the desander, in addition to form mud machine, drop chute, underflow shaker screen, a bracket and a base.

mud cleaner

The performance mainly in the following points:

1  in the desander and desilter main inlet pipe and the liquid outlet tube is arranged between the control valve, the base is provided with a chute, shaker screen is located in the chute, automatic sand block device and a regulating device is arranged inside the hydrocyclone underflow.

2、 applicable model has the advantages of compact structure, convenient operation, easy to repair, reliable work, can quickly remove harmful solid from drilling fluid, improving the performance of drilling fluid, meet the new technique of high pressure jet drilling requirements.

3、 mud cleaner cyclone group consists of 1 – 3 of high wear-resistant polyurethane cyclone for removing sand and 8 – 16 of high wear-resistant polyurethane cyclone is arranged, an overflow pipe and feeding pipe of large diameter, cone angle is small; thus in the sand removing pumps and mud pumps, the formation of 0.21-0.40MPa pressure, to achieve the effect of swirl.

shaler screen

4、 mortar direction changing mechanism adopts a central shaft is fixed on the metal groove tilt can together to control the flow of mortar; the circular arrangement of cyclone group and rectangular recovery shaker screen supporting the use of.

5、Due to the above properties, I produced the mud cleaner because of its reasonable design, is a whole body, the occupied space is small, processing performance is good because, now widely used in petroleum, natural gas drilling and trenchless construction. Not only occupy a certain market in China, but also exported to Russia, Australia, Indonesia, Thailand, USA international market, won the customer’s recognition.

Reasons and Solutions for Hydrocyclone Sand Up

Bottom sand up: causes of underflow sand up is unproper adjustment, causing dry bottom discharge, and sand content is too high, resulting in hydrocyclones overload. Method to exclude bottom sand up is turning up the underflow; let the previous solids control equipment to remove more solid. Bottom sand up will affect its purification ability, accelerate the wear lining and vortex tube, so once found should be removed immediately.

Brightway hydrocyclones

Brightway hydrocyclones

The inlet pipe sand up: inlet pipe sand up can be divided into local sand up and all sand up, local sand up, into the fluid velocity in the oral cavity becomes low, the hydrocyclone only plays the role of vortex funnel, large leakage in drilling fluid underflow. Sometimes the underflow is mixed with the clean drilling fluid overflow pipe in the back. The inlet pipe all sand up, there can be a lot of clean drilling fluid flows down from the overflow pipe.

The inlet pipe causes sand up is because drilling mud system is not strict. If the drilling fluid doesn’t go through shale shaker, or the shaker screen of shale shaker is damaged, most likely cause the inlet pipe sand up.

Hydrocyclones Working Principle and Desander Position in Solids Control System

Hydrocyclones are essential components for various types of solids control equipment. It also plays an important role in solids control system. The working principle of the equipment is as follows.

working principle of Hydrocyclones

working principle of Hydrocyclones

Desander is one of important solid control equipment in drilling mud system,its role is to remove harmful solid phase, keep stable performance of drilling fluid, so as to improve drilling efficiency.

Many people may not be clear about the positions of solids control equipment like desander, desilter in solids control system. The following picture will show clear idea.

positions of each solids control equipment in solids control system

positions of each solids control equipment in solids control system