How to operate GN 500GPM mud recycling system

500GPM is the most popular capacity mud system for HDD, CBM and other trenchless activities. GN Solids Control dispatched a 500GPM mud system to clients.
Firstly, remove the shaker box locking device of shale shaker GNZS703E-HB and mud cleaner GNZJ703E-D8N (Please refer shaker user manual and mud cleaner user manual for detailed operation). Then have a trial operation to shale shaker and mud cleaner.
All valves for pipelines are on off state after dispatch from the manufacturer’s factory. Before start up the system, operator should open values first and ensure all of them unblocked.

Then, start up shale shaker GNZS703E-HB and mud cleaner GNZJ703E-D8N. After the shaker and mud cleaner is running stably, start up submersible slurry pump to feed for the shale shaker. It is the first stage separation. When the mud reaches to three quarters of the 1# compartment underneath shale shaker (about 1 minute), start up the desilter feeding pump (1# sand pump GNSB6x5A-12J). Mud will be transferred to the mud cleaner 4’’ desilter cyclone from the 1﹟compartment, at a pressure of 0.25~0.40MPa. It is the
second stage separation. The clean mud from 4’’ desilter cone flow to the #2 compartment. When the mud height reaches to the overflow pipeline, it will overflow to #3 compartment. The user-owned mud pump is connected to the suction line of the 500GPM mud system tank and transfer qualified mud to wellhead. The clean mud can also directly flow to outside storage tank through the desilter output pipe.
When needed, users can start up the mixing pump (2# sand pump GNSB6x5A-12J) and feed to the mixing hopper GNSLS35A. The weighted mud from mixing hopper flows to 3# compartment. The suction port and discharge port of mixing pump are equipped with T-pipe, it can also mixing/discharge mud from/to outside tanks.  
Pay attention to the performance of the desilter cyclone. Ensure it works properly. If not, adjust the cyclone adjustment cap for a better performance. Pay attention to the figures on the pressure gauge of desilter cyclone, ensure it is under the scope of the working pressure. The working pressure of 4’’ desilter cyclone is 0.25~0.40MPa.

500GPM Mobile unit for HDD and water well drilling

GN Solids Control is China leading manufacturer of compact design mud recycling / cleaning system for HDD, CBM drilling and water well drilling. GN mud desanding plant for micro tunneling, piling and other trenchless activities is also sold well.
GN 500 GPM mud recycling system for HDD and water well drilling has be dispatch for Middles East. The system is catering for mobile unit, and can be used for water well drilling, horizontal directional drilling (HDD), Coal bed methane (CBM drilling), as well as oil and gas drilling.

Equipment included in the 500GPM Mobile unit mud system:
1) GNZS703E-ZD shale shaker, 1 ea
It is a linear motion shale shaker with 3 panels. The shaker is equipped with back type feeding box for a lower feeding height. In case the mud will be flowed to shale shaker directly through pipelines.
Features of GNZS703E shale shaker
a. It utilizes the most reliable linear motion for a stable performance.
b. The shaker model utilize pretention screen, Each screen mounted by 2 ea wedge for fast screen changing.
c. The shale shaker deck of GNZS703E shaker is made from stainless steel material for a better performance of anti-abrasive and longer lifetime.
d. The dumpling spring of the shaker is steel material internal for more stronger and better performance of vibration desorption. The spring external is protected with rubber sleeve to prevent fingers involved in during operation.    
e. The vibration model is chose from worldwide famous brand: Italy Oil or Martin.
2) GNZJ703E-8S desilter mud cleaner
It is the combination of a shale shaker GNZS703E and 8 ea 4’’ desilter cone assembly. The 4’’ desitler cone is made from PU material for long lifetime.
And the cone assembly is removable. In case needed, the Operator can bolt off the desilter cone assembly and mounted a feeder box and use it as a separator shale shaker.
3) Slurry pump 1 ea. In case mud maybe stocked in mud pit, a slurry pump is used as backup.
3) Mud tank 1 ea. The mud tank is equipped with container block for easy mounted and clocked on the trailer.

Points consider the mud agitator for use

Mud agitator is a
motorized mixer that is installed on the storage tank to keep fluid
consist mixed with additive and avoid separation by gravity.  According to the experience of continues use
on the field, the selection of mud mixer should consider to a few points:

1.   
Rotation speed: Operators it does not want the cuttings in the mixing process
splintered more into smaller debris, so the stirrer speeds cannot be high, the
energizer should choose between 50~60rpm. For more than 60rpm of mud mixer,
recommended the user to take a cautious on the result of the high rotation
speed.

2.   
Sealing: According to the feedback of use from the operator.   As mixing conditions are not ideal, the
drilling fluid mud agitator shaft is not suitable for the use of end face seal,
the general packing seal is also hard to use. At present, the more suitable is
the use of multiple sets of V type packing. It has self sealing performance and
self compensation ability, and long-term maintenance adjustments abilities will
not cause lubricating oil leakage problems.

3.    The impeller:
There is a variety of mud mixer impeller, but it must take consideration
that  a small diameter of the blade with
high speed of mixer motor have the small amount of circulation, shear force,
and therefore does not apply to the use of drilling fluid solid suspension.
Therefore, the diameter of the impeller should be consider larger. Second, pay
attention to the turbine type impeller has been widely used in the drilling
fluid mixer, which is the best open type turbine, because there is no central
disc, not to hinder the mixing of the upper and lower liquid phase of the
impeller.

GN
Solids America LLC manufacture
its own mud agitator and export it to the
world as needed.

Solids control mud cleaner for Hong Kong project

Shale shaker, mud cleaner and desander, desilter are the most common solids control equipment for different drilling rigs, like oil and gas drilling, Horizontal directional drilling, coal bed methane (CBM drilling), water well drilling, piling, micro tunneling, and other trenchless and underground activities.
GN Solids Control as one of China leading manufacturing for solids control mud recycling system and equipment, they exported some shale shaker and mud cleaner for Hong Kong China for a trenchless project.
The client bought equipment from GN:
1) Solids Control shale shaker, GNZS703E.
It is a linear motion shale shaker with 3-panel shaker deck. It utilize pretention shaker screen and mounted by wedge for fast screen changing. GN offers steel frame screen and composite materials for its screens. Customer can choose suitable type per need. All GN shaker deck is made from stainless stain for better anti-corrosion and long lifetime. 

2) Mud cleaner GNZJ703E-3S16N
The mud cleaner is the combination of a linear motion shale shaker GNZS703E, 3 × 10 inch desander cone and 16 × 4 inch desilter cones. The cone assembly is mounted on the shaker deck. It is user friendly design. If you do not want to use mud cleaner, you just remove the cone assembly parts and use it as a shale shaker.
3) Mud cleaner ZNZJ703E-16N.
It is the combination of shale shaker and desilter cone. The under flow shale shaker is GNZS703E. Normally clients choose underflow shale shaker the same with solids control shale shaker. For this mud cleaner, it is only 16 ea 4 inch desilter cone, no desander cone applied.

Other solids control equipment can be offered by GN:
Complete mud recycling systems, mud tanks, decanter centrifuge, mud agitator, mud gun, poor boy degasser, mud gas separator, jet mud mixer.
Solids Control equipment is only a small part of GN Solids Control company. The main field of GN group is drilling waste management. f you want more information, or you have any questions on drilling waste management, welcome you contact GN group at any time.

Top quality solids control shale shaker and centrifuge for 1500hp rig

As China top manufacturing on mud solids control and drilling waste management, GN Solids Control exported complete set solids control equipment for Russia customer.
The projects includes below solids control equipment:
1) Solids control shale shaker with linear motion, model GNZS594E.
Model clarification: GN means brand. ZS means linear motion. 59 means the screen width is 59cm. 4 is 4-panel screens. E means it is the E generation from GN Solids Control.

It is a 4-panel linear motion shale shaker can be used for both solids control. It can also be used as high G drying shaker while equipped with 1.94Kw vibration motors and with hopper feeding.
GN offers steel frame screen and composite material screens for GNZS594E 4-panel shaker.
2) Fixed speed decanter centrifuges for solids control and barite recovery. Centrifuge model: GNLW363CG. It is the most popular side decanter centrifuge for drilling rigs.
GN and LW means the brand and centrifuge type. 36 is the centrifuge bowl diameter: 36cm. 3 is the bowl length and diameter ratio. 3 is the most popular ratio for drilling rig decanter centrifuges.
3) Some mud agitators and centrifugal pumps.
Even for the accessory small equipment, GN all made per international high standard, with all materials chose from internal and international famous brand.
For mud agitator, GN chose SOG oil seal and FAG genius bearings.
GN centrifugal pump is equipped with mechanical seal. The material for mechanical seal is tungsten carbon for long time. Bearings are from worldwide famous brand FAG.    
Other solids control equipments can be offered by GN Solids Control:
1) Desander, desilter or mud cleaner with under flow shale shaker. GN do offer 2-panel, 2-panel, and 4-panel under flow shale shaker.
2) Poor boy degasser, it is also name mud gas separator. It is used before shale shaker but after BOP to kill the gas in the mud.
3) Vacuum degasser. It is used after shale shaker but before hydrocyclone separator to kill the very small size gas to protect the cones.
4) Jet mud mixer for barite and polymer mixture.