desilter

Recently we finished production of one set of solids control system to India, including shaker tank and decanter centrifuge tank system. This is a 5 phase separation mud tank system for 1500HP oil drilling rig. The working principal is as below:


1) 3 units of shale shaker as the first phase cleaning to separate the big solids bigger than 100 microns from the drilling fluids, it can be used for both water based mud and oil based mud or synthetic oil based mud. The shaker screen installed on the shale shaker is composite material frame shaker screens comply with API RP13C.


The possem belly is installed behind the 3 units of shale shaker as drilling fluids distribution box and collect the drilling fluids from the mud gas separator or from the elevated manifold directly.
2) desander cone is the second phase cleaning to separate the cut point below 45 microns. The fluids with solids below 45 microns will drop into the mud tank compartment. The 2# centrifugal pump suck the drilling fluids from this compartment and feed to 4 inch desilter cone.
3) desilter cone is the third phase cleaning to separate the cut point below 25 microns the fluids below 25 microns will drop into the desilter compartment and the submersible slurry pump will suck the mud from this compartment and feed to GNLW452C decanter centrifuge.


4) middle speed decanter centrifuge is the fourth phase cleaning to separate the cut point 5~7 microns for barite recovery.
5) high speed decanter centrifuge is the fifth phase cleaning to separate the solids 2~5 microns for high gravity solids, especially when the drilling fluids has been reused for several years, the fine solids is accumulated a lot and it can not be reused again, then the high speed decanter centrifuge is required to lower the solids content.

This week GN solids control shipped one unit of HDD mud recycling system and dewatering unit to Sinopec project. HDD is one of our major applications, GN equipments 4 major applications including oil & gas industry solids control system and drilling waste management system and oil sludge separation system, HDD & CBM industry mud recycling system, Piling & TBM desander unit, Industry waste water treatment.


The technical configuration is as below:
1) 3 phase cleaning mud recycling system mud tank, with containerized frame for convenient transportation, the user can put the mud tank and the frame with equipments on the trailer and move to another site from one site.
2) 1 unit of GNZS703F shale shaker as the first phase cleaning equipment, equipped with 3pcs of durable composite material shaker screens with customized API mesh screen. We produce OEM composite material shaker screens from API 20 to API 325 as per client’s requirement.


3) 1 unit of GNZJ703F-1S8N mud cleaner, with under flow shaker, desander cone and desilter cone combination unit. Equipped with 2 units of centrifugal pumps as feeding pump of desilter cone and desander cone.
When the drilling fluids temperature is over 70 degree, we will use special material hydrocyclones for longer working life.
4) Dewatering system with same dimension mud tank
5) Decanter centrifuge GNLW363C-VFD is the 4th stage cleaning to separate fine solids smaller than 15 microns. After several years working, more and more fine solids are accumulated in the tank bottom, these fine solids can not be separated by the desilter cone, then high speed decanter centrifuge is required to clean the drilling fluids, otherwise it can not be reused for drilling again.

GN solids control shipped one unit of hydrovac excavation waste slurry treatment system to Canada this week. The configuration is as below:
1) Dewatering centrifuge modular:


One unit of 22 inch bowl decanter centrifuge with feeding pump, telescopic skid as dewatering centrifuge unit, it can work together with chemical dosing system by adding flocculant or chemicals. A fluids catching tank with pump is installed under the centrifuge fluids discharge port to collect the fluids discharged from the dewatering centrifuge.
2) Fine Solids Hydro cycling Separation Module


GN mud cleaner ( desilter cone with bottom shale shaker) separate the ultra fine solids by desilter cone with feeding pump, the cut point is 25 microns. The washing tank under the mud cleaner collect the clean slurry discharged from desilter, and the drying shaker recover more useful fluids and make the discharged solids much drier.
3) Waste Collecting and Washing Module


Firstly the waste ( composed of water, soil, large size trash and other mass) is delivered to the site by hydrovac truck and discharged to the large collection hopper, a bottom screen separate the large size trash from the waste slurry. After separation, the waste is collected by the mud tank under the coarse screen. The waste slurry is pumped to GN high G drying shaker to separate fine solids and reduce the solids content. The high pressure jetting device is used to flushing the screens to avoid the blocking of shaker screens and wash the slurry.GN own made composite material shaker screens for longer working life is installed on the shale shaker.

Bauma China 2016, as the largest construction industry show in Asia, will be held in Shanghai  from November 22 to 25. This show is mainly about the machines and equipment, such as the building material machines, mining machines and construction vehicles. Now this show has become a great platform for product presentation and industry party for all the exhibitors, visitors to communicate and cooperate with each other and find more business opportunities.

shanghai-show
GN Solids Control as the leading manufacturing company for the solid control equipment and mud recycling system will attend the show this year and will present its latest mud recycling system. The booth number is E3. 675, welcome all the friends from domestic China or overseas to visit GN.
GN’s mud recycling system could be used in many areas, such as the TBM, HDD, piling, boring, oil and gas drilling, civil construction, dredging, etc. According to different customer’s requirement and the different situation for each project, the mud recycling could have different configurations and different equipment in it. Usually the mud recycling system will consists of shale shakers, mud cleaners, desanders, desilters, decanter centrifuge, centrifugal pump, different tanks, mixing hoppers, submersible pump, screw pump, etc. According to customer’s different separation requirement, the mud system will include different equipment. The hydrocyclones could separate the solid size from 20-40 microns. The shale shaker will be used as the scalping purpose to separate some big solids. The decanter centrifuge could be used for even finer separation for the solid size of 2-5 microns. After the solids to be removed and the mud could be reused in the mud system again for drilling.
Welcome again to GN’s booth in Bauma China 2016. We believe you have got a different feeling for the mud recycling system used in the civil construction. If you have some further interest, welcome to visit www.gnsolidsamerica.com and please send your inquiries to USA@gnsolidscontrol.com .

Mud cleaning system is critical in the drilling process as they protect the system components by lowering solid/sand content in the drilling fluid. Cleaner fluids means much longer and expandable life in the entire mud cleaning and pumping system. Lowering solid content also allows drilling fluid to carry the sand from the bore more efficiently, making for a better bore hold and improving the rate of penetration dramatically. And it can also solve the environmental and disposal issues and save a lot of cost.

GN Shale America
GN’s mud cleaning system are made on skid, like modular, which makes it very easy for transportation. The mud system mainly includes five components: shale shaker, shaker screens, hydrocyclones( desander, desilters), mud tanks, and electrical motor and centrifugal pump. GN’s shale shaker is mostly in linear motion and is used for the coarse separation. It mainly separate the solids by its size by the screen. For the screens, GN now can manufacture its OEM screen with GN brand, also it can manufacture some famous replacement screens, such as DERRICK, MI-SWACO and BRANDT. After the shale shaker, the mud will be pumped by the centrifugal pump into the hydrocyclone which uses centrifugal force to separate the solid from liquid. It can separate the solid size up to 20 microns. The mud tanks usually have 3 compartments, which will hold the mud coming from different separation stage. The size and capacity will depend on the drilling rig size and fluid flow rate. Now GN can manufacture and supply all the components with high quality and low cost.

US STOCK 1
That’s the brief introduction about the mud cleaning system. Hopefully it will be useful to you. GN has many more solid control systems, they can be used in different operational situations and help you achieve your target easily and cost effectively. Welcome to visit www.gnsolidsamerica.com and please send your inquiries to sales@gnsolidscontrol.com