Monthly Archives: May 2020

High Speed Decanter Centrifuge for Russia Company

Russia is a major oil producing country. Weeks ago, 6 sets GNLW363C-GP high speed decanter centrifuge were delivered to a major mud service company in Russia. The Russian service company is also an importance partner of GN Solids Control. They are cooperated with GN Solids Control over 7 years in Russia and nearby countries.

The 6 sets high speed decanter centrifuge model is GNLW363C-GP, with customized color , logo and nameplate for the client.

GNLW363C series decanter centrifuge is the most popular size centrifuge with 14 inch diameter bowl. It is suitable for high-speed dewatering separation of drilling mud and construction mud. GN Solids Control GNLW363C series decanter centrifuge is designed for max. water treatment capacity 45m3 / h and an effective processing capacity of 30m3 / h.

The design maximum speed is 3900RPM. GN Solids Control can offer 3 kinds of control for the 14 inch decanter centrifuge, which can meet most clients applications:

1) The most popular control type is fixed speed control for the 14 inch decanter centrifuge. Its model code is GNLW363C-GP. The Fixed speed decanter centrifuge is relative easies for operation and maintenance.

2) The 2nd type is variable frequency drive (VFD) control. Its model code is GNLW363C-VFD. The VFD centrifuge is complex than fixed speed centrifuge. But the max. speed can up to 3600RPM in specially request by clients.

3) The 3rd type is Full hydraulic drive (FHD) control. As the Full hydraulic drive system is imported from Europe, FHD centrifuge price is much higher than VFD and fixed speed control decanter centrifuge.

At the normal working speed setup before delivery is 3200RPM, the centrifuge maximum separation factor is 3063G, the conventional separation factor is 2062G, and the cut point (min. diameter of the separated particles) is 2-5μm. The differential torque is 3500N.M, the main motor power is 37KW, and the auxiliary motor power is 11KW.

Pitless Drilling Waste Management Equipment for an International Oilfied Service Company

Last week, GN Solids Control finish the production of a full package of Pitless Drilling Waste Management Equipment. The Drilling Waste Management Equipment will be shipped to an International Oilfied Service Company for pitless treatment.

The Pitless Drilling Waste Management Equipment including below processing equipment:

1) Firstly, there is a coarse separation shale shaker which will be mounted with coarse separation shaker screens with bigger opening to remove the big size solids in the waste material. There are nozzle for sprays to heat the material in order to reduce the viscosity and density of the waste material especially for oil sludge by heating. Furthermore, as the hazardous material is mostly harm to human health, there are protective covers on top of the shale shaker to avoid drilling mud or the waste material spatter during heating.

2) After the coarse separation shale shaker, a second shale shaker will be used with normal size API shale shaker screen to remove particles by API screens.

3) As the project is treat oil base mud and oil base cuttings, vertical cuttings dryer is used in the system to reduce the oil on the cuttings. After the vertical cuttings dryer separation, the oil content on the cuttings can be reduced to 3% ~ 5%. As the opening of screen basket for vertical cuttings dryer is between 0.3mm to 0.5mm normally, the drilling mud recovered from vertical cuttings dryer is heavy in weight, which cannot be used in drilling mud system directly. In this case, the drilling mud will be feed to high speed decanter centrifuge to reduce the mud weight.

4) There are some sets of Solids and sludge vacuum pump in the pitless treatment system. The function of solids and sludge vacuum pump is to replace screw conveyors. The solids and sludge vacuum pump can be used to collect drilling cuttings from solids control system, and transfer to drilling cutting treatment equipment, like feed to coarse shale shaker, API shale shaker, and vertical cutting dryer.