Drilling Mud Recycling System

Recently GN solids control shipped one set of drilling cuttings solidification unit to our client in Africa. The cuttings solidification unit is widely used for water based cutings final disposal. The technical specification of GN drilling cutting solidification unit:

1) GN stand drilling cutting solidification unit is mounted on 2 skid, one is solidification mixing unit, one is cuttings storage hopper skid. During transportation, the solidification unit is loaded into 40ft container, and the 2 separate skid for convenient operation.
2) The cuttings storage hopper skid including waste collection hopper and accessories and screw conveyor , the user can damp the cuttings waste into the collection hopper, the screw conveyor transfer the waste to solidification mixing unit continuously.
3) The solidification unit including lime storage box, absorber storage box, high shear mixer, all of these components are installed on one skid. The screw conveyor dropped the cuttings into the vessel, at the same time, the lime and absorber are transferred by separate augers, all of these materials are mixed into the vessel, and transferred by the inner screw to solids discharged port. If chemical is necessary, it can be add through the liquid inlet .
Before feeding the GN solidification unit, to save the operation and material cost, the drilling cutting should be as dry as possible. The client can use water based drilling waste management system before feeding to cuttings solidification unit.

Normally we use high G drying shaker and high speed decanter centrifuge package. The screw conveyor collect the water based drilling cuttings and transferred to high G drying shaker, the coarse solids are separated out, the fluids dropped into the buffer tank, the screw pump transfer the liquid to VFD decanter centrifuge, then the fine solids are separated out, the fluids are flow to solids control system for reuse, the cuttings are collected by trash box and feed to solidification unit.

Recently GN solids control shipped one set of oil and water separation package for China Oilfield Service company. The technical configuration is as below:

1) 2 phase decanter centrifuge to separate fine solids from fluids
2) Screw pump to feed the crude oil / oil sludge to decanter centrifuge
3) 3 phase centrifuge ( disc centrifuge) to separator oil from water, by adding proper chemicals, the recovered oil can be with BS & W below 3%, which can be accepted by most users.
4) Diaphragm pump to feed the clean fluids discharged from decanter centrifuge to disc centrifuge
5) Buffer storage tank for oil and water with oil pump and water pump, 2 liquid level meters are installed on each tank, when the oil or water level reached the setting level, the oil pump and water pump will pump the oil and water to the big storage tank
6) Package skid, all the above mentioned items sit on one skid for convenient transportation and operation

This is one modular of the oil sludge separation system, the complete oil sludge treatment system including waste pick up pump ( normally we used vacuum pump), Pre-mixing tank modular, screen modular to separate coarse solids, chemical dosing system, and the last modular is 3 phase separation package.
The pre-mixing tank is the most important part, when the solids content is higher than 30%, the waste oil sludge should be diluted by proper fluids and low the solids content below 30%, if necessary, the demulsifier should be added by this process for easier separation for the next phase separation. The mud agitator is agitating the oil sludge with chemical mixing evenly and the submersible slurry pump will transfer the fluids to screen modular to separate the coarse solids.
For more information, pls contact with GN solids control.

Recently GN Solids Control shipped one set of solids control system to Papua New Guinea by air. Because the project is very urgently, the client can not bear the long sea freight time, so they decide to ship it by air by a big cargo airplane. After arrived at Papua New Guinea, the user need to ship the solids control system by Helicopter because of the rough road condition there.

The technical configuration of the heli lifted solids control system is as below:
(1)1 set of mud gas separator with skid, during transportation, it is laying down for easy transportation.
（2）2 sets of linear motion shale shaker with 3 panel screens, all the shaker screens installed on the shale shaker and mud cleaner are composite material frame shaker screens for longer working life and better separation performance.

（3）1 sets of mud cleaner( desander cone, desilter cone and bottom shale shaker 3 in 1)， the treating capacity is 1000gpm, the desander cone qty is 2 ea, the desilter cone qty is 12 ea. 2 sets of centrifugal pump as feeding pump to feed drilling fluids for the desander and desilter. The centrifugal pump is interchangeable with world famous brand centrifugal pump, and the wear parts- pump case and impeller is made of hard ductile iron material for longer working life.

（4）1 set of trip tank with mud agitator and mud gun
（5）1 set of mixing tank with mixing hopper, mud agitator, mud gun ,the mud agitator is vertical installed mud agitator for space saving purpose and with higher efficiency.
（6）1 set of treatment tank equipped with shale shaker, mud clener
All the equipments are installed into the heli lifting frame for safety shipment and safety lifting by the helicopter.
If you need high standard solids control system, pls contact with GN solids control.

Another set of workover rig mud tank system is shipped to Indonesia last week, it is consist of 2 mud tanks with a total tank volume 400bbl, including:
1) Shaker tank: tank capacity 200bbl, with handrails, stairs, inner stairs, walkway, control panel, lightings, mud agitator, mud gun, shale shaker
2) Mixing tank: tank capacity 200bbl, with handrails, stairs, man hole, cleaning gate, walkway, control panel and distribution box, mud agitator, mud gun, mixing hopper, mixing pump

3) IEC explosion proof electric control system for all the motors, lighting, cables, gland
4) Composite material frame shaker screens to be installed on the linear motion shale shaker, with treating capacity 528gpm, we can produce screen mesh from API 20 to API 325 as per client’s requirement, the 3 layers stainless steel wire mesh for reliable working performance.

5) Linear motion shale shaker equipped with 3 panel screens, the vibration motor is IEC EX certified Italy Oil brand vibrator, 2 ea of 1.72KW vibrator to provide G force up to 7.5G. The starter is IEC explosion proof. The shaker deck is made of stainless steel for better corrosion resistance. The shaker screens are fixed and locked by composite material wedges for convenient replacement shaker screens.
As one of the professional manufacture of solids control system & drilling waste management system in China, GN solids control can design and produce customized drilling rig mud tank system as per client’s requirement.
We can produce standard solids control equipments like shale shaker, mud cleaner, desander, desilter, centrifugal pump, vacuum degasser, centrifugal degasser, mixing hopper, mud gas separator, etc.
Also we can produce drilling waste management equipments like decanter centrifuge, vertical cuttings dryer, screw conveyor, solids vacuum pump, screw pump, and we can produce oil sludge separation system for refinery oil tank bottom cleaning sludge to recover oil and water.

GN Solids control participate in ADIPEC 2019 successfully in Middle East. The oil exhibition information is as below:
Show time: November 11~14th, 2019
Stand No.: 10514
Location: ABU DHABI
What products we have showed at ADIPEC 2019?

1) Decanter centrifuge : the decanter centrifuge can be widely used for solids control low gravity solids separation, drilling waste management system, oil sludge separation system, industrial waste water treatment system, dewatering unit, the max speed is 3900rpm, the normal working speed is 3200rpm, the separation cut point is 2~ 5 microns ; if with chemical dosing system, the separation cut point can be 1 microns. We can design and produce decanter centrifuge with 9 inch bowl diameter, 14 inch bowl, 18 inch bowl, 22 inch bowl, 30 inch bowl.

2) Shale shaker: The linear motion shale shaker is used to separate coarse solids from the drilling fluids, drilling waste, oil sludge and all the other type sludge to reduce the solids content, and separate the big solids
3) ViST screen is installed attached with shale shaker to improve the separation performance and get drying discharge solids, the collection hopper is installed under the last piece shaker screens and connect to the vacuum unit, the user need to prepare a air compressor to supply air to the ViST screen.
4) Solids vacuum pump: the vacuum pump can be used to transfer different kinds of sludge and solids, like oil sludge, drilling cuttings, drilling fluids, sand, silts, hazardous contaminated soils, dredging slurry and all other kinds of slurry.

5) Shaker screen: we produce OEM and replacement composite material frame shaker screens, which is with longer working life and better performance, they are produced comply with API RP13C standard, all the wire mesh over API 60 use 3 layers stainless steel 316 material wire mesh. The storage life is up to 5 years.
We got positive feedback from our international clients, for more information, pls contact with GN solids sales.