SYSTEM

HDD means horizontal directional drilling. Many people are wondering when HDD machine used? You see, you want to put pileline undergoud pipeline, but there is a huge river in the area. How did you do, to full up the river or change direct to pass it? No, it is huge work. With HDD machine, you can put pipes in a depth first, and then cross pipes under the river. Another condition like that, it requests to put some underground pipes for cable, for water, for natural gas, etc… in city area, but it is not possible to dig up the ground, there are buildings and constructed road on it. With HDD machine, things will be very easy.

World HDD maching / rig supplier

1) Ditch Witch

2) Vermeer

3) SANY

80T HDD machine is a most common side drilling rig. The high pressure is between 1000 to 2000 liters. 350~500GPM mud system is used for this rig size.

For different customer and different rules for discharge, there are different standard mud system.

If your 80T machine is for HDD, we recommend you GN350~500 GPM mud system.  

Simplify proposal as below:

1) GNZJ705E-6N mud cleaner for 2 phase separation. 1 each

It is a double deck shale shaker, with 6 each 4inch desilter cone above the shaker.

2) Centrifugal pump: 5’’*4’’, 22kw, 2 each

3) Mud gun: 1 each

4) Mud tank dimention: 6058x2250x1600 (the same dimension with 20ft container)

5) Slurry pump feeding for shale shaker, 11kw, 1 each

6) Light system and electrical control system.

We offer TURN-KEY solution. You only need to plug-in with our power and then press START of the system.

China Petroleum Pipeline Bureau (CPP) is the biggest HDD contract in China. It is a government controlled company. CPP have drilling actives worldwide, in China and outside China.

 

TBM is Tunnel boring machine, it is similar to piling. It is widely used for municipal construction, like subway, tunnel, etc… There are high content coarse rock particles generated during the process. It does not have high standard for mud quantity. No need separate to very small size. It request big capacity for a rough separation, like 120m3/h or 240m3/h mud systm.

Mud plant for TBM Tunnel boring machine

It is compact mud system with double deck shale shaker, and desander hydra cyclone above the shale shaker to used as a combination of mud cleaner. 10’’ Desander cone quantity varies from 1 ~2 for different capacity (120 CBM or 240 CBM). TBM mud system use steel frame screen (e.g. 0.3mm, 0.5mm, etc…) and desander cone. Desilter normally is not used in TBM drilling mud system.

TBM Tunnel boring machine supplier:

1) Akkerman Inc  for Trenchless Tunneling Equipment 

2) Alvenius Industrier AB (Sweden)

3) Associated Polymer Services Ltd Geotechnical and Tunneling Supplies 

CBM (Coal Bed Methane) is more and more widely used. As natural gas as a clean energy type become more and more polular.

CBM (Coal Bed Methane) mud system is similar to HDD (Horizontal Directional Drilling). Compared with TBM and piling, it has a higher request on mud quality.

Mud cleaning system used for CBM drilling:

1) Per different capacity, Shale shaker is single deck or double deck, and utilize shaker screen 2 panels, 3 panels or 4 panels.

2) Desander cleaner

3) Desander cleaner

4) Mixing machine

CBM (Coal Bed Methane) machine supplier:

1) Atlas Copco (America)

2) SCHRAMM (America)

3) Sany Heavy Industry (China)

Desanding plant for TBM and mud cleaning system for CBM us different. They are not changeable. Customer should specify the rig type before order. For any questions on compact mud system, you can contact GN group for solution.

China top solids control manufacturer: GN Solids Control, exported a complete set 1200GPM mud recycling equipments to middle east market for HDD drilling rig.

The system is customized for the customer. To further reduce the total cost of the tank, GN company offered complete equipment, and offer customer tank design drawing free of charge, customer build mud tanks locally. They are happy with the solution and the system used very well now.

Equipment for the 1200GPM mud recycling system:

1) 3 each Shale Shaker GNZS579

2) 1 Mud Cleaner with 3 each 10’’ desander cone and underflow shale shaker model GNZS594 (Desander cones only )

3) Jet mud mixer

4) Agitators

5) Centrifugal pump feeding for the desander cone

6) Mud tanks 1 each. W 3000 mm, H 230omm, L 12000 mm

Customer want tank size is  W 3000 mm, H 2300mm, L 12000 mm with center Partition , the I section for 3 Shale shakers with 2 Agitators,  II section for Mud Cleaner with 2 Agitators and the jet Mud Mixer. Centrifugal Pump Model SB8x6-12J for mud transfer  from Shale Shakers Section to Desander cones. 

Shale shaker is the first stage solids control equipment. Sealing rubber is used between shale deck and shaker screen. It plays a very important part for shale shaker performance. A better quality sealing rubber can enable a longer life time of shale shaker and can great reduce the quantity of replacement shaker screen.

Functions of shale shaker sealing rubber

1) Shale shaker is a screening device adjust high vibrating strength to separate bigger particals from drilling fluids. Good quality Sealing rubber can reduce the friction of shale shaker deck and the shaker screen, and provented the shaker from damage.

2) What will happen if there isn’t sealing rubber? If there isn’t screen rubber or it is damaged, the screen frame will touch with shaker deck directly, which will be damaged in a very short time.

3) The worse condition is the dirty mud with many junks from well will fall into mud system directly. It needs the higher treating capacity of the next step equipment. Otherwise it may make damage to the next step solids control equipment, or even worse, it may block mud pump and make stop of the drilling rig.

4) If the sealing of the rubber is not good enough, its anti-corrosion not good enough, it will be broken easily under high temperature drilling mud, and the shaker screen will be damaged very quickly.

In some countires, like in China, Kuwait,Oman, U.S. , Canada, Australia, etc…, shale shaker is usually the only solids control equipment in a mud system. Drilling fluids only treated by shale shaker, then back to mud system for drilling again. In this case, it requrests a high standard for the reliability of shale shaker performance.
 Which brand shale shaker can suits such high requirement? See below:

1) Top 1 brand: Derrik FLC 514, Derrick FLC 513 shale shaker

2) Top 2 brand: GN Solids Control shale shaker: GNZS703, GNZS594

GNLW363 centrifuge is widely choosed for dewatering unit. GNLW363 centrifuge, with Derrick DE-1000 centrifuge and Swaco 518 centrifuge, they are the most hot sale model worldwide.

GNLW363 dewatering centrifuge is with bowl size 14 inch. And with bowl length 50 inch. It is the most popular size centrifuge model.

Derrick and Swaco dewatering unit sometime put the centrifuge in the same container of the dewatering unit. While GN Solids Control recommend to put the centrifuge outside the dewatering unit, for easy maintenance and operation.