It is very strange that China even have more strict environmental requirement on the dredging field than all over the world, on the waste solids disposal and also the fluid dump, no matter how it have been applied on field, in paper it is really advanced. So basically when the oil market is down, we get a chance there, some client in dredging field said. Just like you have done in waste management field. Also we have realised that not only china all over the world, people are taking more care on the environmental protection. For dredging, what we need is:
Recycle the cleaner fluids.
Dump and reuse as much as possible on the solids.

Not like the oil gas drilling, from the pond, or from the river, from sea, there are sands, rocks, and other things as you can imagine which have been buried in it. So the separation seems very different. Except the basic concepts.

Separate the biggest particles and other stuff other than the sands and silts. There are many ways to do this, one is dig another pit / pond, with at big screen from where dredging pump feeds, let the screen separate unreasonable parts to the pond, keep them away from the progress. Another way is gumbo box, it is quite same as the mining applications, to separate the biggest rocks from the first step, then others feeding directly to the shale shaker.

Then directly, or by another pump from the pond. The feeding goes to the double deck shaker. In GN, it is GNZS706E, which is good to separate the bigger sands and the most of the bigger solids. going through two sieves.

Catched by the pump, feeding to the cyclones, to get the silts separated.
Then in the same way, separated by the decanter centrifuge. 

Sometimes it also need help from chemicals that why a flocculent unit is there. To concentric the small particles to be bigger ones, then easier to be separated.

Kindly contact GN for a full solution.

It is another productive year, a big order knocks the door of this. In the beginning, EMEC, our partner from Egypt, after taking time to test our centrifuges, finally come to GN from US suppliers, they purchased about 40 centrifuges in total, and the first one is more than 30units.

Then as we all know, oil price keep going down, market is down. We are holding the project, the project has been delayed is the most often answer we heard from client.
Good news is the Chinese government published the new environmental protection regulations. We need handle the drilling waste. Which makes half of the market live again. While thanks to the seed we have planted, GN have been in study of the vertical cuttings dryer and other driving waste management equipment long time ago. Which makes, again, GN stand in front of all Chinese manufacturers, to supply the high quality waste management products to the local market.
A few dozens vertical cuttings dryer, decanter centrifuges, and dewatering unit have been sent to the Chinese drilling site.
So as the old saying, when the flower blooms outside of the wall, the people inside can smell, the big Chinese contractors finally comes to GN, finally realised and found the best equipment supplier here. One of the best.
Another benefit also thanks to the down time market, more and more Europe or US contractors finally get more and more interested in good quality Chinese suppliers. Since this could be one way to save cost. If can supply same quality with more competitive price, why not keep themselves in the perception of made in China. A lot of people have gave it a try. Maybe you all also should do.

After Baker Hughes choose GN products, more and more big players in the market comes to us, come to our yard, comes to our site, they want to find out what makes Baker feedback that these products even better than US/ EU products.

GN Solids Control is a recognized solids control and drilling waste management manufacturer in both home-based and outside China. And Shale Shaker is one of GN Solids Control’s most popular goods in all of GN merchandise line. Each year, GN makes in addition to sells around 250 pieces of GNZS series shale shakers to more than 62 countries and regions of the globe.

GN Shale Shaker Positive aspects:
1 . GN owns twelve patents, most of them are on shale shaker design, and such effective remedies are important to ensure the shaker to present reliable performance without seeping.
2 . GN use Malta Oli brand vibrating engines. For normal models such as GNZS594E and GNZS703E, often the G force for vibrating sex is up to 7. 5, flexible. When talking about High-G blow drying shaker GNZS594HGE-LD, the penis-shaped G-force could reach main. 0.
3. In order to thoroughly stand the high vibrating push from the vibrating motor, often the shale shaker has to be built with a substantial structure. That’s why GNZS series shaker’s deck are made from Stainless Steel.

But the good shale shaker is not the only factor to completely show the performance, which is also impacted greatly by the shaker window screens. In order to better control shaker screen’s quality, GN features a separately shaker screen manufacturing plant for supporting GN individual shakers. But since GN displays is very cost-effective, lots of GN clients who already have additional brands’ shakers source window screens from GN. GN would make replacement screen of good good quality and reasonable price with regard to old and new clients, and in addition customizes shaker screens with basis of a MOQ.

The reason why choose GN screens?
- reliable quality and sufficient service life. Because GN Solids Control alone is also shaker manufacturer, GN is more familiar with screens and also knows how to make suitable window screens for shakers.
2 . constantly improving the producing procedure, with proper procedure in addition to methods in making screens, GN screens’ quality is always elevating.
3. good material. GN uses imported glue in addition to based on the mesh center regarding China.

Seeing is thinking, welcome to visit GN and offer trial orders on GN screens.

This is an un-complete list of Water Powered DTH Hammer Suppliers. 

1. Wassara:

http://www.wassara.com/en/

Since Wassara products are water-powered, drilling through water-rich formations is obviously never a problem. But, actually, Wassara hammers go effortlessly through almost any material, from boulders to wood to dense clay, easily, cost-effectively, and quickly.

Wassara water hammers consume up to 80% less energy versus most air-powered drilling waste management systems. Our tools also last far longer due to the very low upward water velocity required.

Because only pure water is used to power our hammers – and no oil is needed for lubrication – no damaging emissions are produced. No oil gets into the groundwater; no dust gets into the air, resulting in a cleaner, safer, work environment.

Water Powered DTH Hammer Definition:

What is DTHand How is it Used? The “Down the Hole” or DTH hammer is used for drilling holes through a wide range of rock types, the variety of which continues to extend well beyond the original conception of early blast hole drilling.

“Down the Hole” refers to where the hammer action occurs when compared to drifter hammers, which hammer on top of the drill string. The DTH hammer piston always makes direct contact with the drill bit, and there is generally no loss of transmitted energy as the hammer drills deeper, as is the case with drifter (top hammer) rigs.

Halco Rock Tools Ltd.

http://www.americawestdrillingsupply.com/Halco/HalcoMain.asp

Halco Rock Tools Ltd. is a world class manufacturer of down the hole (DTH) drilling equipment. Halco pioneered the development and distribution of DTH hammers in the 1950s, and now their precision-engineered range of performance hammers and drill bits is used globally. Predominantly used for mining, DTH is preferred in other applications such as construction, quarrying, formation sampling, and the drilling of water wells.

Cubex Water Actuated DTH Hammer Drills

http://www.advancedconstructiontechniques.com/Cubex-Water-Actuated-DTH-Hammer-Drills.asp

ACT was awarded the Chicagoland Underflow Plan (CUP) McCook Reservoir Grout Test project by the Chicago District, USACE, in 2003. The Specifications required that both “Rotary drilling or rock coring shall only use water as circulating fluid. Percussion drilling shall use water in addition to air as the circulating fluid. Other drilling methods for this portion of the work may be proposed by the Contractor in the RFP for approval by the Government.” After thoroughly review the available Down-the-hole (DTH) drilling techniques, ACT proposed the use of water DTH (W) hammer, the first time adoption and application in the drilling and grouting industry in North American.