Zero discharge have almost become a modular requirement now in China drilling market, to comply with the demand of environmental protection, and as a young market for the drilling waste management, many many companies involve in this. Which makes things more comlicated, as all of the suppliers are trying to customized a solution for the clients. If the end user, or the buyer is not professional enough, all will be puzzled, and learn from their own mistakes.
As an experienced one stop solution supplier, GN have learnd from the experience of supplying modularized HDD mud systems. Now all drilling waste management system are modularized. For the whole process, can be separated to be a few steps.

1. Solids Control
This is where the drilling cuttings waste comes, and solids control system, drilling fluids recycling, is a standard one in driling site. Though a lot of different design.
2. Primary Treatment by Cuttings Dryer or High G shaker
2.1 Delivery Unit
To collect all the solids waste from the solids control system, the vaccum unit, screw conveyors, hose pumps are used as per different concept.
GN have designed a basic / modular delivery unit, c/w collecting hopper, hose pumps, skid.
2.2 High G shaker
High G shaker is widely used for the water based cuttings waste, as it is more effective to handle. Though cuttings dryer can do this well, it is too expensive to operate.
Also each High G shaker can be used as a separate modular unit, with hopper underneath.
2.3 Verticl Cuttings Dryer
Widely used & accepted by users for oil based waste cuttings.
3. Solidification Unit
Then the solids goes to the solidification unit
In China, GN as a pioneer to supply this unit in compact design, and cooperated with US suppliers, absorbing tech. from experienced companies, to serve Chinese market.
4. Dewatering Unit
As we all know after high G shaker, or verticle cuttings dryer, the liquid will be sent to the decanter centrifuge, while if it is not qualified, also need to be flocculated, treated by chemicals.

To know the detail design, pls ask for info. from GN Sales team.

It is a long way for GN to finally have some standard HDD mud systems to meet various needs from clients. It was a good way for clients to find a company who can do the customized mud systems, as after experiencing different mud systems from different suppliers; also for a new startup company, it is important to learn from the experiance on site.
After years of customization, now GN also designed several modularized / standardized mud systems for the HDD & CBM projects.

The standardized 500gpm GN500GL is one of them. It is a long history, and lots of GN customers are using it. Equiped on top of a 40ft mud tank, W, L same diemension as container, container lifting corner makes it more flexbile for transportation on site.
The system contains: GNZS703E, the updated shale shaker, GNZJ703E-8N desilter cleaner, c/w feeding pump, then enough space for jet mud mixer with jet mud mixer.

Except the tank, the shaker & desilter design also considering the flexible transportation. As we move it very often, client talk about this very often, especially normally dealing with this with oil gas solids control suppleir, lots of them do not have experience with small systems, also do not learn from international competitors, and hard to proceed the change inside the company; while GN solids control keep improving for the basic requriements. The desilte cleaner also have a specific design for this kind of system, to make it as low as possible, then most of the countries, with lower trailer, no need to disassemble anything, we can transport it.
As we all know the desilter is combined by under flow shaker, and desilter cones in frame; if we need to disassemble the frame, then the problem comes, how to disassemble and re-assemble a modular design and no screw type well solve this.

Chinese government have enact laws to protect the environment, especially the oil drilling projects, so now all are in need of drilling waste mangement equipments, as an industry leader, again chosen by another big player, Sinopec. While if only consider a young private company, no one have expected this before, just like the big brothers heard a good solids control supplier from oversea clients, then they realized that we have such a good supplier in China, what the hell we are keeping looking for good ones from oversea.

As in China, water based mud are widely used, the waste cuttings mostly are water based mud waste. As better application, High G shaker are most suitable solution, considering economical, automatical and so on. Though the new verticle cuttings dryer from GN can handle, cost more money.
Then the normall process comes this way, the screw conveyor collect all the waste cuttings from the shale shaker, to the GN cuttings delivery unit, which contains 2 hose pump and a big hopper.
By the hose pump, the cuttings are pumped to the High G shale shaker.
Some sites also goes easier way, put some slop plate, guide all the cuttings to the High G shaker. If it works, then it does not matter.

The High G shaker separate the most of the cuttings away. The cleaned mud go to next step, premium decanter centrifuge.

The premium decanter centrifuge is a higher standard one in GN, lots of design to improve the flow, result, and life time. If want to know more, pls check the link. http://gnsolidscontrol.com/drilling-cuttings-management/

Anyway, when the screw pump catched the fluids from shaker, then pumped to the decanter centrifuge, with High Speed (VFD), the particles bigger than 5microns are separated. The almost clean fluid can be recycled.

This time the project for Sinopec is 8sets, each sets got 2 High G shaker, 1 premium decanter centrifuge; and normally it works for most of the drilling projects, waste management. Combine this with the solids control ssytem, to be a NO MUD PIT / ZERO DISCHARGE cuttings treatement system.

It will be a long road if the client is critical, and if politicians swings, things change again. For turbulent Africa, for this project, the fruits comes after 5 years flower blooming. The client comes to check all the details, to make sure that everything is right, real trial test, operation, and leaving with thumbs up, simling face.
As keep following on all our products design, and all projects of drilling waste management for other clients, the client tried to absorb all the advantages from other projects. Here comes the final one.
Main equipment c/w two containers, flexible, compact, and easy for sea shipping. As you may find in the brochure of drilling waste management system, normally three modular package included.

1. Waste Mechanical Separation
In this system, in one container, contains verticle cuttings dryer, High G dryer shaker, and decanter centrifuge.
GN dryers is with higher speed up to 1200RPM with G force up to 750G. This gives it more ability to separate the oil on the cuttings, especially of WBM, it works well for the critical WBM. GN 363 series Decanter Centrifuges is the most popular size decanter centrifuge for drilling mud treatment. GN built over 100 this size of decanter centrifuges in 2014. This type and size of decanter centrifuge is popular for solids control, dewatering ,waste management, sludge treatment.

2. Then here comes another 20ft container, which loads the flocculant & coagulant mixing unit inside, add chemicals to make sure that all ultra fine particles can be separated.

Keep tune on this, will update more after after sales commissioning.
OK, if you want to have a look, kindly let us know your location, then we will see if can find some opeartion site nearby. Or pls check the videos from our website.