Tunnel Shield Project 500gpm Mud System to Thailand

on . Posted in News

Shield Method is one fully mechanized underground construction Method. The shield machine will be pushed forward, the surrounding rock will be supported by shield shell and segment. At the same time, excavation of soil will be conducted at the front of the excavation face by cutting device; the soil will be carried out by unearthed machiner. After that, the shield machine will be pushed forward again by jack and assembling precast concrete segment, this is the general formation process of tunnel structure.

Tunnel Boring Machine (short as TBM) and Mud system is indispensable for tunnel shield project. TBM as main equipment, mud system as auxiliary equipment to make the TBM working in a high effeciency way. Recently, one Thailand customer bought one set 500gpm mud system to match with TBM machine for Tunnel shield project. Follow to read more about this case.

The 500gpm Mud System Technical Parameters

  • One unit of double deck 6 panel shale shaker, GNZS706 with upside 3 panel coarse mesh shaker screen (2mm) and downside 3 panel fine mesh shaker screen ( 40mesh). The upside shaker screen area 2cbm; the downside shaker screen area 2.6cbm.
  • One unit of mud cleaner or mud conditioner, GNZJ703-8N with 3 panel deck shaker and 8 pcs X 4inch desilter cones. The separation points 25-40 microns.
  • One unit of centrifugal pump (37kw) for feeding desilter cones, the feeding pressure should reach 0.25-0.4Mpa; GN centrifugal pump is interchangeable with NOV mission pump. GN can also offer complete range of spare parts for NOV mission pump.
  • Two unit of mud agitator (11kw) to suspend and mix the drilling fluids.
  • Two unit of mud gun (2inch, fixed installation type) to working together with mud agitator.
  • One unit of mud tank with 4 compartments.
  • One unit of separate mud mixing unit, GN jet mud mixer with one mud hopper and one centrifugal pump (37kw). This unit can help supplement drilling mud to the system or add necessary chemicals or water.

Oil Sludge Separation System to Kuwait

on . Posted in News

Oil sludge separation system is ready to deliver to Kuwait. It is used as the 1st stage of an oil recovery project of KOC for which a local service company makes the purchase from GN.

Component of the oil sludge separation system are listed below:

1 ea x GNCD930 Vertical cuttings dryer

4 ea x GNZS703D double deck shale shaker

5 ea x V-hopper with screw conveyor assembly at the bottom

10 ea x various pumps: shear pump, centrifugal pump, submersible slurry pump

To prevent cold weather in winter, the systems are combined with steam lines.

About KOC

The Kuwait Oil Company (KOC) is an oil company headquartered in Ahmadi, Kuwait. It is a subsidiary of the Kuwait Petroleum Corporation, a Government-owned holding company. KOC is the world's fourth-largest oil exporter.


VFD decanter centrifuge & Hi G cuttings dryer in Indonesia

on . Posted in News

GN has provided a customized solution to handle the drilled cuttings off the shakers for a drilling project from Pertanima, an Indonesian state-owned oil and natural gas corporation. GN after-sales engineers went there for the field service.

The solution mainly consists of a Hi G cuttings dryer shaker and a Variable Speed decanter centrifuge to treat the water based drilling fluids waste.

GNZS853 Hi G cuttings dryer vibration force can be up to 8.0 G.  With a screen area of 3.2 square meters, the cuttings can stay longer on the screen for trapping the solids and the cuttings off it are dry enough for transportation.

For oil based mud (OBM), we have vertical cuttings dryer to dry the drilled solids and big bowl oilfield decanter centrifuge for bentonite recovery. 

About Pertamina

Pertamina is an Indonesian state-owned oil and natural gas corporation based in Jakarta.[2] It was created in August 1968 by the merger of Pertamin (established 1961) and Permina (established 1957). Pertamina is the world's largest producer and exporter of Liquefied Natural Gas (LNG).


GN Solids Control Beijing Factory Has Set Up

on . Posted in News

GN Solids Control has set up her third new factory near Beijing after the original factory in Tangshan and shaker screen factory in Anping. The new job site takes up an area of 40,000 square metres with workshop equipped with new advanced equipment, and new techniques have been utilized in the production and quanlity control sections. The factory has been certified by the API & ISO standards, thus laying a good foundation for expanding the product range and production capacity. 


 Up to now, GN Solids Control has always been dedicated in the manufacture and sales of solids control equipment & mud circulation systems. Every month we have large demand on decanter centrifuge, shale shaker and shaker screens, vertical cutting dryer ect.

GN Decanter Centrifuge

Despite the oilfied solids control system, GN also do well in compact mud recycling unit for Horizontal Directional Drilling and CBM induries. CPP, the largest HDD company in China has bought over 30 set of the mud recycling unit. In Australia and Newzealand, we also exported over 20 units.

Mud circulation system

We are and always will be providing you the best solids and liquid separation solutions.


GN will show in AOG 2011

on . Posted in News

GN will participate in AOG 2011 (Argentina Oil & Gas Expo 2011), This is the 2nd step for GN to explore our market in Latin America. We just came back from Brazil Offshore 2011 last month.

General info. about AOG 2011

Show Name: Argentina Oil & Gas Expo 2011
Show Time: 10th to 13th Otc 2011,14:00~21:00 p.m.
Venue: La Rural, Buenos Aires, Argentina
GN attend this show together with our Exclusive Agent in Argentina , pls check their contact information. English, Spanish, Portuguese are all welcomed.

High Speed Decanting Centrifuge