drilling waste management | GN Decanter Centrifuge

Solids Control Wear Part- Shaker Screen

Within the solids control industry, shaker is the primary solids control unit, and shaker screen is a vital put on part for shale shaker. GN use the advanced technology to produce a number of brand shaker screens. Being an API and ISO licensed company, GN offers from API 20 to API 400 shaker screen.

Top quality and Flexibility Test

GN screens are fabricated in an array of API dimensions to make sure maximum solids control efficiency no matter the formations drilled. Our high-strength and strengthened material frames and stainless steel sieve are lighter and much more durable than usual shaker screen. What results is operational existence that’s nearly double those of other screens available on the market.

GN use constant observation, adjusted test liquids, Dry sieve testing procedure and periodic sampling testing to represent each API sieve class. GN regularly takes shaker screen to check percent elongation, ductility, wire count and tensile strength so assure each shaker screen qualtiy

Although we check carefully each shaker screen, couples of clients still complain the shaker screen blocked. You will find some reason by which make the shaker screen clogged

– How big solids is near to the dimension of opening sieve

2. Drilling liquids/mud is that contains an excessive amount of moisture

3. Particle/solids have static cling throughout the separation process

4. vibrating mesh wire through too thick

5 . The form of huge solids is flaky

6. some thicker kinds of mine screen, pass design is uncommon

Note: the contaminants/solids are essentially irregular shape, therefore the reasons of block are also different. To be able to better prevent screen clogged filter while watching products, perform some analysis and judgment before we decide the shaker screen. When you wish to filter fine contaminants or consists of more mud, water will probably cause blockage from the primary factors sieve. Hence the requirement for moisture testing contaminants, once the water is more than 5%, the requirement for blocking particulate drying out When water is more than 8% use wet sieving. Screening performing and the other reasonable regulation mesh tension can also be a highly effective measure to effectively prevent inserting sieve.

GN Drilling Waste Management System for Nabors Industries Project

Hebei GN Solids Control is a top and first API certified solids control company in China. She is an expert of solids control system for oil and gas drilling and mud system for HDD drilling, Tunneling, and Geothermal drilling and so on. Besides solids control system and mud system, GN solids control is also qualified to supply high quality and performance drilling waste management and system. This year, GN drilling cutting management system sells very well and is gradually accepted by big players in this field. One set is now on service for Shell, and four sets for Baker Hughes are ready for delivery and will do service for Nabors industries project.

Nabors Industries is one of the largest oil and gas service companies worldwide. Nabors have about 500 land rigs, 48 offshore rigs and over 500 workover and well servicing rigs working in U.S. and Canada, Gulf of Mexico etc. more than 25 countries and areas. The Project including equipment as below:

Four sets VFD vertical cutting dryer whose speed varies from 0 to 900 rpm with positive pressured PLC touch screen panel.

Fours sets VFD decanter centrifuge whose speed varies from 0 to 3200 rpm via positive pressured PLC touch screen control panel. This VFD control panel can control the speed of bowl, the speed of conveyor, and the speed of feeding pump.

Twelve sets screw pump for transferring drilling mud and for feeding decanter

centrifuge.

Twelve sets of screw conveyor. Screw conveyor is used to feed drilling cutting to the vertical cutting dryer, and to transport the solids discharge by the dryer and decanter centrifuge.

GN vertical cutting dryer not only can handle oil based mud drilling cuttings, but also could handle the water-based. The below links are available to watch videos of GN vertical cutting dryers.

Video of GN vertical cuttings dryer for Shell project – Oil Based Drilling Cuttings treatment: http://www.gnsolidscontrol.com/video/gn-oil-based-drilling-cuttings-dryer-shell-project

Video of GN decanter centrifuge for Argentina project – water based drilling mud treatment: http://www.gnsolidscontrol.com/video/water-based-mud-decanter-centrifuge-argentina

3500bbl Mud Liquid Plant for off-shore drilling

Features of the 3500bbl Mud Liquid Plant for off-shore drilling

It is a 7-tank mud system complete with mixing, cleaning and storage function. And complete with lighting system and electrical control system.

Equipment included in the 3500bbl Mud Liquid Plant

1) Skid Mounted 3 runner oilfield skid mud tanks with V crimp, quantity 7 each 2) Mud tank with dimension 13500x3000x2350mm. Unit capacity 500bbl. Tank bottom steel plate thickness is 8mm, tank wall steel plate thickness is 6mm. Tank top covered with 5mm Checker plate. Tank bottom 5 degree incline torwards the drain gate for selfcleaning.

3) 3 double-layer agitators and 3 mud guns for each tank

4) Mud Mix unit (100 HP / Duplex type) with two pump motor units. On a separate skid. 3 Tons Electric hoist for lifting chemicals.

5) Steel frame rain shade Roof Cover for Jet Mixer Skid

6) Light system for the while system

7) Electric Control System for the while system

Base oil tanks for the 3500bbl Mud Liquid Plant

Customer request 3 base oil tank (diesel tank) next to the 3500bbl Mud Liquid Plant. The based oil tank equipped with shear pump in a separated skid. For cleaning diesel before enter into base oil tank, there are oil/water filter before oil enter into oil pump. In case the oil quality is not good enough, the filter will cleaning the oil first and then transfer to the base oil tank.

For easy maintenance, GN Solids America disc valve in side tank suction port. And outside tank is butterfly valves.

Mud System Compact Design for Easy Operation and Cost Saving

Almost all the large capacity drilling project need one set drilling fluids recycling system. While the drilling waste management system could also be classified as high configuration system and economic configuration model. The high configuration mud system is always be equipped for the oil drilling rig. This type mud system includes all the solids control equipment like shaker screen, de-sander, de-silter , vacuum degasser and decanter centrifuge. For some deep oil well drilling, the mud system may be consisting of many mud tanks for active mud storage. The economic configuration mud system is always used for some deep oil well drilling, work over rig project, horizontal directional drilling and piling project.

Work over rig mud system is little simpler in the solids control equipment configuration as the mud system sometimes only contain the shale shaker for one stage solids control. The workover rig no need the drilling mud to be treated very clean. It also has a mud mixing system which could be used to re-configurate the drilling mud.

According to the flow rate of the directional drilling rig, the HDD mud system is often divided into different model. Such as GN’s model 150GPM, 350GPM, 500GPM, 800GPM, 1000GPM and 1500GPM. The HDD contractor would always not use the decanter centrifuge in the system as the drilling fluid is not very high request on the cleanness. But some customers has high request, they will also put the decanter centrifuge in the mud system.

The piling system is the simplest de-sanding unit; it only has one tank and one unit high capacity de-sander. GN solids control could provide the piling system of D50 and D100 as per the treating capacity. Always the piling system is no mixing system, the solids is removed out by the vibration screen, and the fluids get down to the tank and the pumped back to the rig.