Author: gnadmin

Recently one set of offshore mud tank system is ready for shipment, Because of the limit space for offshore platform, the design of the mud tank system is compact and easy transportation, the technical configuration is as below:

1) One unit of linear motion shale shaker to separate the coarse solids, the shaker screens are composite material frame with stainless steel 316L wire mesh for longer working life, so that the user do not need to waste much time on replace the shaker screens. The screen lock method is by wedges with ratchet wrench for convenient locking the screens.

2) One unit of mud cleaner( desander cone, desilter cone and underflow shale shaker combination) with 2 centrifugal pump as feeding pump, the centrifugal pump is interchangeable with famous brand centrifugal pump, the hydrocyclones are 100% PU material for longer working life, if the mud temperature is higher than 80 degree, we will use metal cover outside the PU cone to prevent is from deformation.
3) One unit of decanter centrifuge with submersible slurry pump as feeding pump
4) Compact design mud tank with all the electric cables outside the mud tank for convenience replacement and check. The discharged solids/ cuttings are collected by a slant box and drop down to the screw conveyor to transfer the cuttings to the drilling waste management system.The user do not have to clean the floor and do not need extra skip to collect the waste cuttings. The handrail, walkway and stairs are installed with the mud tank.
5) The mixing hopper, mixing pump are installed on the mud mixing tank if the client need to prepare for new drilling fluids with the recovery drilling fluids.
If you need customized design mud tank system for offshore and onshore drilling, pls contact with GN solids control.

Last Month we shipped one unit of sludge vacuum pump to India for oil sludge transfer with capacity 40m3/h. This month the client repeat order again for a smaller flow rate 20m3/h vacuum pump, they need a smaller size vacuum pump.
When the client use the vacuum pump to transfer the oil sludge or tank bottom cleaning oil sludge, the real capacity will reduce according to different material. The higher density & viscosity of the material, the less transfer capacity it will produce.
The major components of a vacuum pump including:
1) Lifting frame
2) Vacuum tank and pedestal comnination
3) Air suction combination
4) Slurry suction pipe combination
5) Slurry discharge pipe combination
6) Air jet tube components
7) Air inlet pipe combination
8) Pressure pipe combination
9) Pneumatic control box

We will suggest the user to have one set of spare parts for their operation for convenient replacement once it is required.
What other accessories is required to operate the vacuum pump?
This is also the most common questions from our clients, they need to know the operation cost to use the sludge vacuum pump. There is pressure and air volume supply requirement for different model vacuum pump. Also the user need to prepare the strong enough suction pipe and discharge pipe with suitable length as per their own requirement. Our vacuum pump is 100% air operated pump without electricity power supply, the user need to prepare for suitable model air compressor. Before purchasing, we will send the question list to our client to judge if our vacuum pump can work for their project or not, especially for the suction depth/height, suction length and discharge distance.
GNSP-40B is the largest model we can produce right now, we can make customized design if the client need to put several units one one skid, the GNSP-20B, GNSP-10B vacuum pump is portable with compact design.

Recently 2 sets of oil based drilling cuttings treatment system are ready for shipment to Russia. Same with previous order, the vertical cuttings dryer and decanter centrifuges are installed in the container with insulation layer to keep the equipments warm in cold weather in China.
The technical configuration is as below:

1) Vertical cuttings dryer for oil based drilling cuttings treatment, the oil on the discharged cuttings is below 5%, the client can disposal the solids directly or send to TDU unit according to the environmental protection regulations in their country. The treated fluids will flow to the intermediate tank, the feeding pump of decanter centrifuge will feed the fluids to decanter centrifuge to separate the fine solids. The vertical cutting dryer is installed on the frame inside the container.

2) The waste decanter centrifuge will separate the solids cut point 2~5 microns from the fluids, the discharged fluids can be reused by drilling and prepare for new fluids.
3) Positive Displacement pump is as the feeding pump of decanter centrifuge and installed in the container.
4) The 40ft standard container with windows, doors and top open hole for easy replacement of the screen basket which is wear parts of the vertical cuttings dryer. The insulation layer attached with container is to keep the equipments working well in cold weather in Winter, it is special design for Russia clients.

Why use GN vertical cuttings dryer system?
As per the feedback from our client who has used GN drilling waste managements system, the vertical cuttings dryer system can reduce the drilling waste volume effectively, and the recovered drilling fluids can be reused, the client can save cost and time to transfer the drilling cuttings to third party facility for treatment. And more and more countries forbid to dig waste pit at rig site for environmental protection.

One set of oil sludge treatment system is ready for shipment, we have standard oil sludge treatment system with different treating capacity 1 m3/h, 5m3/h, 15m3/h for option, also we can design customized oil sludge treatment system. The technical configuration for this oil sludge separation system is as below:

1) Coarse solids shaker unit: This unit is to separate the coarse solids from the tank bottom oil sludge which is consist of oil, solids and water. There is hot water spraying system and sealing cover to prevent splitting . The adjustable G force is up to 7.5G, 2 vibration motor is made of Italy Oil or US Martin brand. The shaker screen with 1mm or 2mm opening is installed on the shale shaker.
2) Decanter centrifuge package: Decanter centrifuge is used after the shale shaker to separate fine solids from the oil sludge, when working together with chemical dosing system, most of the ultra fine solids could be separated out. The clean fluids will drop down into the mud tank, there is mud agitator installed on top of the mud tank, the heating lines around the mud tank to heat the oil sludge for centrifuge to be separated easily.

3) Inclined plate clarifier :to separate the ultra fine solids from the oil slurry, it should ensure the minimized suspend solids content remained in the fluids so that the oil water separator can work well.
4) Oil water separator to separate oil and water, the oil will flow to oil buffer tank once reached the limit level, it will pump to the oil storage tank automatically, there is liquid level meter to monitor the liquid level. The clean water will be pumped to the water storage tank.
If you need customized solution for oil sludge separation system, pls contact with GN sales engineer.

This week one batch of big bow decanter centrifuge and shale shakers are ready for shipment to USA. The models and configuration is as below:

1. Big bowl decanter centrifuge: The decanter centrifuge is used to separate the fine solids from the drilling fluids after shale shaker. The shale shaker with good performance can reduce the solids content effectively and protect the centrifuge screw from damaged by the big solids. GN solids control can produce decanter centrifuge from 9 inch bowl to 30 inch bowl, the mini centrifuge with 9 inch bowl diameter is mainly used for mining and waste water treatment, also it can be used in compact oil sludge treatment unit, the 14 inch bowl decanter centrifuge is the most popular model decanter centrifuge for solids control, drilling waste management system, oil sludge treatment unit and dewatering unit. The 18 inch bowl, 22 inch bowl decanter centrifuge is the big bowl decanter centrifuge can be used for solids control, drilling waste management system, oil sludge treatment unit and dewatering unit and slurry separation. The 30 inch bowl decanter centrifuge is the biggest bowl decanter centrifuge we produced now, it can be used for Tunneling and other construction work which need big volume slurry.
2. Linear motion shale shaker: The linear motion shale shaker is to separate the coarse solids from the drilling fluids, the user can use different API mesh size shaker screens to separate different solids size.GN shaker screens are produced comply with API RP13C standard and have been approved by the API authorized lab. The composite material frame shaker screen with longer working life, better conductance, better separation performance, better storage life, not only for our own shale shaker, we also produce the replacement shaker screens for world famous brand shale shaker with competitive price and good quality.