Drilling fluids equipment

Rheological parameters and the physical meaning of the plastic flow patterns

① static shear strength (τs)

Start drilling fluid flow required minimum shear stress , which is a continuous measure of the strength of the space frame structure of the drilling fluid formed in the stationary unit area . Continuous space grid structure called gel structure, also known as static shear gel strength . Closely related to the static shear size and drill cuttings and drilling fluid suspension heavier material 's ability to stop the cycle . However, static shear force can not be too large, otherwise the pump difficult and sometimes choke drain formation . Adjust the drilling fluid and the dispersion of clay content , plus inorganic electrolyte membrane adjust the electrostatic repulsion and hydration repulsion between the particles of clay , plus measures to adjust the viscosity fluids like static shear stress .
 
② ultimate static shear force

Various drilling fluid system clay particles due to the irregular surface charge and hydrophilic uneven shape at rest is easy to form a network structure. The minimum static shear stress damage drilling unit volume mesh structure on the need, the drilling fluid called "extreme static shear force ."

③ dynamic shear force (τ0)

Line segment extended flow curve intersects the axis of a shear stress τ0, which is a hypothetical value , a measure of the strength of the mesh structure of the drilling fluid when drilling fluid is reflected in a laminar flow state . Factors that affect the value and size of the adjustment method is basically the same as the static shear .

④ plastic viscosity (μPV)

Bingham formula derived from that plastic viscosity plastic fluid rheology curve segment is the reciprocal of the slope , it does not change with shear force . Description is the viscosity of the system architecture to break speed equal to the speed of recovery time . It is a fluid phase between the particles in a laminar flow system the solid state , between the solid particles and the surrounding liquid phase intermolecular friction formed . Plastic viscosity of the drilling fluid solid content , shape and degree of dispersion of solid particles , the surface lubricity and viscosity of the liquid itself, and other factors . It is directly related to the drilling fluid suspension capabilities, its value should be moderate. If the viscosity is too high the plastic system , reducing the time needed , the solids  control equipment is generally used to reduce the solid phase solid phase content , increase inhibitory system, reduce the activity of the solid phase dispersion ; if urgent need to reduce the dilution water can be added . If you want to increase the viscosity of the system can be added to the plastic polymer organic polymer thickener or clay.

Brightway Desilter

Domestic drilling mud in drilling waste management instrumentality performance level compared with foreign countries, there's still a spot, it's necessary for foreign solid management instrumentality gift state of affairs investigation and learn the technical advantage, promote our country's solids management instrumentality analysis and development of producing technology. This paper collected reception and abroad within the solid section analysis instrumentality mud desilter style, analysis, calculation and use, material and also the basis of analysis achievements, with the present within the mud desilter to some existing issues within the style a replacement form of mud desilter device theme. Connecting with the assembly apply, this paper primarily on the subsequent many aspects of the planning work: 

(1) Through the domestic and foreign mud desilter connected assortment of knowledge analysis, found the domestic and foreign desilter characteristics and development direction, combined with domestic desilter technology state of affairs and lubricator solid section management the particular state of affairs planned preliminary style.

(2) in keeping with the mud desilter of the operating mechanism and conditions of use, advises the desilter the structure and also the main structure style.

(3) Through the intensive field investigation and technical demonstration, with China's a part of the oil field, first, from the facts, supported technical practicableness, structure of advanced BWCNQ100-8N sort desilter style theme and technical parameters.

(4) mistreatment computer-assisted technology style strategies, the prevailing solid management instrumentality supported the analysis results, and do the BWCNQ100-8N desilter theme style and theoretical calculation.

(5) within the structure style and mechanics analysis and intensity, and on the idea of the vortex end of the most components of the structure style, draw the particular assembly drawings and also the necessary drawing.

Brigthway can provide you the professional solids control equipment and drilling fluids system.

Kem-Tron Tango 500 Mud Recycling System

Kem-Tron mud recycling system is one of the popular mud system in the world . Many users choose Kem-Tron for solutions , here I will introduce one of Kem-Tron mud recycling system for you .
This unit is capable of achieving a cut point of 25 microns. The TANGO 500T has one (1) dual-deck shaker with a total screen surface area of 56 ft2 with six (6) 5” hydrocyclone desilters. The TANGO 500T carries a total tank volume of 3,100 gallons between two (2) compartments along with three (3) 250-Series centrifugal pumps with a respective horsepower rating of 25hp, 20hp, and 20hp. All the pumps are located in the pump house to protect from the elements.
Characteristics of Kem-Tron 500 mud recycling system

Firstly , this mud recycling system is a mobile unit which have wheel at one side of this unit for easy moving . Secondly , it’s a combination of recycling mud part and mixing mud part . Thirdly , This recycling unit don’t have mud agitator which don’t have a good agitate fuction . Forthly , It’s mainly focused on recycling mud not mixing which enabled this system flexible and exquisite.Lastly , the price for this recycling unit is costly .

BW Solids Control is a Chinese manufacturer for mud recycling system and have started to design for mobile system recently . For BW drilling mud system , here is some breif info for that.
Main Equipments and Layout for BW500GPM drilling mud system

1 x linear motion shale shaker BWZS70-3P
1X Mud cleaner BWZS85-1S8N, this is the conbination of desander and desilter.
2x centrifugal pump for mud cleaner
1x mud agitator
1x mud gun
1x jet mud mixer
1x Mud tank

Advantages of BW 500 GPM mud system compared with Kem-Tron

Firstly , processing by pickling, help plating, hot-dip galvanizing, inactivation and fine grind. which is guaranteed the syetem have a longer service life. secondly,mud larger mud capacity so treating effect will be better and mixing fuctions is much better too.

Thanks for your reading and supporting.

All rights By Nicholas and Allen of BW solids control.

Good attitude    Active action         Bright future

BW Solid Control for Coal Bed Methane (CBM) Drilling

Coal bed methane(CBM) is a form of natural gas that is extracted from coal bed seams. Sometimes it is called coal bed methane, or coal bed gas, or coal mine methane (CMM). The primary energy source of CBM is a substance called methane (CH4), which is colourless, tasteless, non-toxic & flammable, making coal bed methane available to be used in all natural gas appliances in our home and also commercial applications such as electricity generation. In recent decades it has become an important source of energy in United States, Canada, etc. In Australiahas where has rich deposits, it is known as coal seam gas (CSG).

BW Solid Control System for CBM Drilling

CBM is generated either from a biological process as a result of microbial action or from a thermal process as a result of increasing heat with depth of the coal. It is hold loosely in the coal bed seams by the water & underground pressure. As the main content of CBM, methane has very low solubility to water. To explore CBM, the underground water must need to be removed by pumping, which would reduce the pressure on gas and allow it to detach from the coal bed seam. Thus, CBM that hold in the coal bed seams can be released to the surface with the flowing of water, then CBM are separated from water and collected by special device at the surface.

Coalbed methane is usually very shallow, mainly around 1000 meters. That is why the drilling rigs for CBM are normally for 1000 to 2000 meters. The type & density of drilling fluids for CBM development must be designed and fixed according to the formation pressure, and also need to allocate appropriate solids control equipment, such as shale shaker, mud cleaner, centrifuge, etc. For surface well & intermediate section drilling, drilling medium should refer to the conventional CBM drilling medium optimization principle, while for horizontal well drilling, it should use superior drilling medium, non-clay drilling fluids, fresh water, gas, such as nitrogen, air, etc. & also froams to avoid drilling medium to harm the coal bed seams.

BW solid control co.,ltd

As a professional manufacturer,BW supply solid control equipment for O&G drilling, HDD mud recycling system, CBM drilling mud cleaning system, River silt cleaning system, Geothermal enviromental waste mud cleaning system,Underground mud cleaning system, mining, coal and other industries etc.

Allen Lee / Sales Manager
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

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