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What is the drilling fluid solid control system

Solid phase system is short for solid control system. It is the important device when drilling rig drill well to store, allocate, circulating and purification drilling fluid. Usually it is made of drilling fluid tank, shale shaker, vacuum degasser, desander, deserter and centrifuge, the five levels purification equipment.

Solid control system is also matched drilling fluid supply device, aggravating hopper, aggravating pump, desander pump, desilter pump, shear pump, provide pump, base oil pump, agitator and auxiliary equipment. Besides, all matched pavement, ladder, railing and safety device. It can efficiency eliminate the harmful solid phase which the particle size is bigger than 5-15um and retain the useful solid phase to provide the quality drilling fluid for drilling working.

mud cleaning system

In the design requirements of solid control system, the efficiency volume of mud tank is 75% of total volume. The design requirements should reach this:
Mud tank should accommodate the maximum drilling fluid circulating volume in drilling process.
The adjustment strength of mud tank should meet the requirements of hoisting, transportation and using density is 2.5g
Each bin in tank should accord the technology process requirements to set the communicating pipe of overflow mouth and bottom valve.
All seal parts should meet the requirements of oil resistance, acid-base resistance and all kinds of drilling fluid.

solid control
In solid control system design requirements need equipped with related mud processing equipment.
Drilling fluid shale shaker: the treating capacity should be 100%-125% of drilling pump maximum displacement.
Vacuum degasser: the treating capacity should be 100%-125% of drilling pump maximum displacement.

Desander: the treating capacity should be 100%-125% of drilling pump maximum displacement. The matched centrifugal pump and motor should meet the requirements.
Desilter; the treating capacity should be 100%-125% of drilling pump maximum displacement. The matched centrifugal pump and motor should meet the requirements.
Drilling fluid centrifuge: the treating capacity should be 5%-10% of drilling maximum displacement.

Mud cleaner used for drilling fluid mud recycling system

Mud cleaner is the second class in the drilling fluid system, separate the drilling fluid which is disposed by the first class. Mud cleaner is made of a group of hydrocyclone, a shale shaker and the shunted tubes.

cleaners

The upper is a group of hydrocyclone, the under part is a detail shale shaker. The process of the mud cleaner disposed the drilling fluid divided into two steps. The first step; the drilling fluid is separated into the over flow and the bottom flow with the different density, the over flow return the drilling fluid circulating system, the bottom flow drop on the detail shale shaker. The second step; the high density bottom flow is divided into two parts by the detail shale shaker, one part is the barites and the particles which is less than the mesh through the screen, the other part is the particles which is bigger than the mesh is eliminated by the screen, usually the screen is between 100mesh and 325 mesh, the 150 mesh is widely used.

mud cleaner

Advantages of Mud cleaners:
1. It is a necessary equipment of deep well and super deep well disposed the aggravation of drilling fluid, it can remove the super fine solid phase in aggravation of fluid.
2. It can effectively control the content of aggravation of drilling fluid, to prevent the pressure difference the post card, adhesion the post card and other accidents, reduce the bond issues of drilling string and the thickness.
3. Save the drilling cost.
4. Improved the drilling environment

Compared with the Deserter and the Desander, the mud cleaner have the characteristics of the throughput is big, out faster, the structure is compact and it is easy to operate and maintain, Integrated the advantages of the hydrocyclone and shale shaker, it can quickly remove the harmful solid phase in the drilling fluid, improve the performance of the drilling fluid , meet the requirements of the new process of the high pressure jet drilling.

 

 

Jet Mud Mixing Unit Shipped To NewZeland client

Jet mud mixer (mud mixing hopper) is the equipment to match with the drilling solids control equipments. DC Solid control is the Mud Mixing Hopper Manufacturer.there are 155 154 125 mud mixing hopper for sale.

mud mixing

DC Solid control shipped a set of Jet mud mixer for NewZeland client used for water well Mud recycling system. Mixing hopper is used to prepare or aggravate drilling fluid,change the density,viscosity,water loss of the drilling fluid. If put the drilling fluid materials and chemical addition agents into the mud tank directly,the materials and agents may precipitate or conglobate,with the decive,the materials and agents can be mixed well.

jet mud mixer

Jet Mud Mixer includes one mixing hopper, centrifugal pump and base. DCSLH series Jet Mud Mixer is special equipment to prepare and increase the drilling fluids weight by adding and mixing bentonite, change the fluid density, change the mud density, viscosity, and dehydration. The effect is more prominent matching with Shear Pump.

Jet Mud Mixer is a unit used together with the solids control system for petroleum grilling and horizontal directional drilling. The unit includes one sand pump, one jet mixing hopper and one jet mixer that are installed in a base with pipe valves. It is safe and stable and can be moved conveniently. At the same time, we can make Twin-Jet Mud Mixer according to the user requirements.

The Foreign Order Of DCS Series Centrifugal Pump

DCS Series Centrifugal pump is used for transferring slurry or mud or water. It can be used as feeding pump for desander, desilter, or used as mixing pump for Jet Mud Mixer. Also it can be used as trip pump, and supercharging pump for rig mud pump. DC Machinery got an order of 12 sets of centrifugal pump used for oil and gas field.

centrifugal pumps

All DC model centrifugal pump use tungsten carbide mechanical seal, with famous brand Bearing. And spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design that lowers axial thrust loads, and make it easier for installation, repair and maintenance.

sand pump

The centrifugal pump offers the following features:
Simple construction
Low initial cost
Easy to maintain
Small space requirements
No close clearances
No valves or reciprocating parts
Impeller and shaft are the only moving parts

Centrifugal pumps can be directly connected or belt driven to various power sources, motors, steam turbines, or engines. They produce a steady flow and have low start-up torque requirements. These pumps are used for a relatively wide range of flow rates and are suited to handle liquid slurries with suspended solid matter.
Centrifugal pumps are well adapted to general water supply, irrigation, and sewage service. They are used in mill, chemical and petrochemical process plants, mining operations, and drilling rigs.

Vacuum degasser used for solid control system

Vacuum degasser is a safety equipment of solid control system. DC Solid control is a professional manufacturer of design and manufacture all kinds capcity of vacuum degasser for many years.

Function of vacuum degasser

Vacuum degasser used in filling well, grinding well and sinkiang Di na well. All technology indexes all achieve the design requirements. Degassing effect is marked and will produce the good economic benefit. In the regular drilling process, if occur drilling fluid gas cutting, the vacuum degasser can dispose it. It can avoid the influence of gas cutting to drilling fluid working performance, decrease the abrading of mud pump, improve the efficiency of water and decrease the repairing times and stop drilling dispose times.

vacuum degasser

Comprehensiveness of vacuum degasser

In unbalanced drilling, now have the degassing equipment – drilling fluid gas separator, it only separate the free gas in drilling fluid, but it can’t eliminate the not free gas. Drilling fluid often have gas cutting. The function of vacuum degasser is eliminating the not free gas. The equipment developed succeed provide the guarantee for the matched equipment of regular drilling and unbalanced drilling.

degasser

Why vacuum degasser can eliminate the gas

In order to efficiency eliminate the gas in drilling fluid must meet the requirements:
The bubbles in drilling fluids should expose on the surface, will rapidly swell and fracture in the negative pressure condition. Gas cutting drilling fluid will remain a certain times in separation chamber. After gas cutting enter into separation chamber will present the turbulent condition flowing. So the degassing effect decided by the reasonable control of vacuum, the remaining times of gas cutting drilling fluid in degassing chamber and the turbulent condition in degassing chamber.

Degassing chamber vacuum is higher, the bubbles received the expansionary force in drilling fluid is bigger, the volume expansion is bigger, drilling fluid give the buoyancy is bigger, then bubbles are easy float to the drilling fluid surface to broken.

JBQ series mud Agitator advantages and shortcomings

JBQ series mud Agitator, Less than 5.5 kW drilling mud Agitator adopts the blender cycloid speed reducer, and it is applied to the drug liquids mixing tank. This mud agitator has the advantage of compact structure so it occupies small area. More than 7.5 kW Mud Agitator uses the turbo and worm gear speed reducer, with the large torque transmission、 the revolution is steady、it works reliablely and has great merit. Common model of mud agitator is JBQ5.5kW 、JBQ7.5kW 、JBQ11kW and JBQ15kW.

agitators

The advantages of mud agitators

1All kinds of the gear boxes and the combination of the impellers can adopt t most requirements.
2It is efficiency in the deep and big containers
3It can design the appropriate shearing force according to the requirements.
4It expose more liquid which touching the atmosphere, help cooling drilling fluid.

mud agitator

The shortcoming

1The drilling fluid in the different containers can’t be blended, the drilling fluid can’t be shifted.
2In most cases need power supply.
3It is maybe exist dead zone.
4It is need installed partitions

DC is a professional manufacturer of solid control system/equipment in china. We will provide our client 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. We still adhere to the concept of Creating the maximum values and the satisfaction for our clients.

The important functions of drilling fluid shear pump

Shear pump is already used and the theory confirms efficiency and specialized machine that can shear polymer and clay. In drilling system, after the polymer and clay is fully sheared enter into drilling fluid system that can give full play to its function and improve drilling fluid performance.

If it can’t be fully sheared, polymer maybe block shaker screen in first circulation loss large polymer, increase drilling cost and make the large size solid phase particles is harden and difficult to eliminate.

Because don’t have fully shearing in completion fluid the polymer will produce many “fisheye”. The fisheye will damage stratum and make its permeability is decreased, the oil gas level is reduction of output.

shear pump

Shear pump provides high shearing for high molecular polymer to rapidly hydration, solving the problems that the polymer can’t be well hydrated in drilling fluid or completion fluid.

Using shear pump can decrease above 15% of polymer dosage, the dosage of bentonite will be decreased above 30% and improve mud cake and fluid loss, decrease drilling fluid shearing ration rate, improve jelly strength, the shaft seal structure is more reliable has excellent performance and use maintenance is more convenient.

shearing pump

The function of shear pump.

Shear pump can improve the extent of hydration of move soil particles.

The dispersion of move soil particles in water and extent hydration is decided: the content of electrolyte, time, temperature, the number of replacement cationic and concentration. All other things were equal use shear pump can save above 30% bentonite

Shear pump can make polymer shear dilute and hydrate rapidly.
The molecular weight of high-molecular polymer is higher which is used in mud, it is difficult to hydrate is directly added, so to high molecular polymer need be sheared. Shear pump can provide high shearing efficiency and to speed up the polymer dilution, hydration process.
Shear pump can provide higher head and displacement can meet the requirement of matching and dispose mud.

 

DC Machinery company supply the high quality shaker screens for oilfield market

Shale shaker screen is a kind of screen that installed in shale shakers. It is widely used in oil extraction and drilling operations to filter drilling fluids, oil and mud.

DC Machinery company shale shaker screen is made of two or three layers of stainless steel wire cloths with different meshes. This structure make shaker screen have good filtering accuracy. Different kinds of shale shaker screen has different features and processing accuracy. For example, wave screen has the best processing efficiency. Steel frame screen with steel support can bearing the highest weight of drilling fluid. You can choose the suitable screen depending on the drilling conditions.

screens

Features of DC Shaker screens:
High strength, high bearing capacity.
Good filtering accuracy.
Good processing efficiency.
Wear resistance, corrosion resistance.
Good flexibility, applied to various shale shakers.
No bumps, deformation, nap, flash edge, metal solder spatter, folding, mezzanine and other appearance defects.

Easy to install and maintain.

 

shaker screen

If you want to get the high quality and cost-effective shaker screens, please contact DC office there you will getting the most professional technical guandance and lower price product. Welcome your inquires.

 

Four-stage purification system of solid control equipment

Mud cleaning system is mainly made of a group of store drilling fluid solid control tank and a group of equipment which rid of the solid phase in drilling fluid, solid control tanks which store drilling fluid are divided into circulating tanks and store tanks. Circulating tanks as a part of the ground cycle, there are shale shaker, vacuum degasser, deserter, desande and centrifugal on the surface of tank. The store tank is according to the need of drilling condition to allocated the different performance drilling fluid, or store drilling fluid which used for different drilling condition.

mud cleaning system

The purification process

The first level purification

The mud disposed in shale shaker. The allocation drilling fluid enter into the bottom well under the foundation of the drilling pump and carry drilling cuttings return the ground, through the elevated tubes enter into the shale shaker, the larger rock debris in drilling fluid are screened.

The second level purification

When drilling fluid have gas cutting, we can use vacuum degasser remove the gas which in the drilling fluid and can recovery the density of drilling fluid, steady the drilling fluid viscosity.

The third level purification

The drilling fluid is disposed by the 2level purification enter into the desander through the desander feed liquid pump, the harmful sold phase which the diameter is above 40-60um is separated in desander.

solid control

The fourth level purification

The drilling fluid is disposed by the 3level purification enter into the desilter through the desilter feed liquid pump, the harmful sold phase which the diameter is above 15-40um is separated in desilter.

The fifth level purification

The drilling is disposed by the 4level purification enter into the centrifugal through the centrifugal feed liquid pump, the small harmful sold phase particles are separated in centrifugal.

Usually, the 5 purification is working at the same time. If it works one equipment or several equipments, the parameters of the drilling fluid can meet the work requirements, it can work one equipment or several equipments. After the purification, drilling fluid can enter into the next common drilling cycle.

25 Sets of solid control submersible slurry pump shipped to Singapore

Submersible slurry pump normally used for feeding shale shaker for CBM, HDD. It also can be used as feeding pump for decanter centrifuge. Usually we use single stage and single suction system. The standard length of pump 1 3m, but it can be customized per user demand.

slurry pumps

DC Solid control shipped 25 sets submersible slurry pump to Singapore market recent days. Actually, the slurry pump is one kind of centrifugal pump. As slurry pump is mainly transferring liquid and solid mixture, the pump raw material is rather anti-abrasive. It can transfer different hard materials. Including sand, cement, particles, shale, and so on.

submersible slurry pump

Submersible Slurry Pump Features & Benefits
1. The pump shaft under the liquid has enough rigidity. No bearing is set between impeller and pump.
2. Shaft seal is not adapted, the medium with dense solids can also be transported.
3. The Deep Well Water Pump may penetrate the liquid between 800m-2500mm under it, and may be equipped with suction pipes if necessary.
4. Vertical motor is installed on the motor base, connected to the vertical slurry pump by coupling.

Since these submersible slurry pump will be used in Singapore, client has strict requirement to satisfy some standards, especially for our electric motor. We provide CE certification and explosion-proof proof as per their requirement. The model they ordered is our commonly 100YZ100-30 submersible pump with power 22kw. Its lift is 17.5 meter, and rotary speed is 1440r.min. Flow rate is 110m3/h. The length of our pump can be customized according to client’s needs.

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