The drilling fluids with the cuttings from the well are discharged to a rig shale shaker where the cuttings are separated from the drilling fluid. The separation step does not completely remove drilling fluid from the cuttings, some drilling fluid and additives remain on the drill cuttings.

drilling cutting treatment equipments

Then such drilling cuttings with drilling fluids will be dropped into a GN drilling waste system, through physical way to separate the usable drilling fluids with unusable drilling cuttings. For example, hi-G shale shaker to separate larger drilling cuttings, then verti-cutting dryer to separate drilling cuttings with oil less than 5%.The usable drilling fluids are treated by decanter centrifuge, then clean drilling fluids and water will back to rig again.

The cuttings separated by verti-cutting dryer with less than 5% oil can not be drain off directly, it may pollute the environment. We must use chemical way to continue the treatment.

Drilling cuttings treatment method:

Thermal desorption, re-injection, incineration and solidification.These methods have been applied in the site, they may have their own advantages and disadvantages.

Thermal desorption:

use of the patented Porcupine Processor to remove all water and oil, leaving a residual total petroleum hydrocarbon on cuttings of less than 1%.

Re-injection :

Continue reading →

What is Dredger?

Simply speaking, Dredger (Also called dredge) isa vessel used for dredging. It is used to excavate and remove material from the bottom of a body of water. For example, a scoop attached to the end of a rope or pole by which a man can draw sediments up from the bottom of a pond is a dredger. Developing this idea further, a motorized crane equipped with a drag bucket or clamshell (grabber) that is used to scoop material from the bottom of a body of water is also a dredger. The crane could be located on the bank, or perhaps mounted on a barge. If the crane is mounted on a barge, the entire vessel is referred to as a dredger.

Dredge slurry separation system

What is Dredging?

Dredging is an excavation activity in which materials are recovered from beneath the water’s surface. The purpose is generally to gather bottom sediment and either dispose it at a different location or use these sediments in various products, e.g. sand and gravel is used in concrete mixtures.

GN solids control design and produce dredging slurry separation system, and we cooperate with dredger manufacturer all of the world. Some of our DSS system has worked successfully in the site with dredger.

Here we listed top 5 Dredger manufacturer, welcome to contact us for more updates.

1 IMS Dredges, Division of LWT, LLC( website: http://www.imsdredge.com/),

2 Ellicott® Dredges

3 Crisafulli Dredges(www.crisafulli.com)

4 VMI Dredger, to see How do VMI dredges work, pls check　http://www.vmi-dredges.com/how-dredges-work.htm

5 DSC Dredge(http://www.dscdredge.com/)

If you need dredger and dredge slurry separation system, pls contact GN solids control.

Decanter centrifuge can be used as 2 functions: one is to used in drilling mud solids control system, to recycle drilling fluids and get barite. The other one is to used in drilling waste management system, to treat the drilling waste and recycle drilling fluids. GN decanter centrifuges are working in many sites in Brazil for such purpose.

Other related equipments with centrifuge:

decanter centrifuge rental in Brazil

In drilling fluids solids control system, centrifuge is used after desander and desilter, when they need to separate fine solids.

In drilling waste management system, centrifuge is used after cutting dryer, when they need to recycle the clean drilling fluids and drain off the cuttings. Sometimes it is used after hi-G shaker, it depends on the drilling mud type.

GN can provide both equipments related to the centrifuge.

People rent centrifuge because of the high cost of US centrifuge, also because of the maintenance cost, sometimes clients only want to use the centrifuge for a short while, so centrifuge rental is economic for them. But most of the clients rent centrifuge because they have Continue reading →

Workover is used to refer to any kind of oil well intervention involving invasive techniques, such as wireline, coiled tubing or snubbing. More specifically though, it will refer to the expensive process of pulling and replacing a completion.

workover parts

Workover Rig is available for both onshore as well as offshore. Before any workover, the well must first be killed. Since workovers are long planned in advance, there would be much time to plan the well kill and so the reverse circulation would be common. The intense nature of this operation often requires no less than the capabilities of a drilling rig.

Workover parts may include the following parts basically:

Workover rig, Manifold, triplex mud pump, mud system, BOP, Top drives, Blow out preventers.

Workover mud system:

GN solids control produced workover mud system for 250HP, 350HP, 450HP, 550HP, 650HP,750HP workover rigs. They have been applied in more than 60 countries in the world. Some clients may get the mud system from rig package supplier. But a much sane choice is to buy the mud system separately from solid scontrol Continue reading →

GN solids control provide solution for oilfield drilling waste disposal.

Oil and gas wells cannot be drilled without creating waste. However, with good waste management practices, the amount of waste can be reduced. By far, the greatest volume of waste generated in the drilling process is drilled cuttings. The first step is to use good solids control equipment, such as the GN linear motion shale shaker, mud cleaner, and decanter centrifuges.

When operated properly, the solids control equipment removes drilled solids from the mud, maintaining the rheology and thereby decreasing the need for dilution. Good solids control equipmentoperated properly also yields drier solids. Both decreased dilution and drier solids reduces waste and increase profits for the operator.

Vertical cutting dryer

The second step is to use good drilling waste treatment equipments, like GN hi-G shaker or vertical cutting dryer, big bowl big volume decanter centrifuge, drilling waste collection box, dewatering unit etc. NOV Brandt called vertical cutting dryer “Vortex dryer”, there is also horizontal dryer.

NOV Brandt vortex dryer V.S. GN CD930 cutting dryer Continue reading →

What is slurry pump?

A Slurry pump is a type of centrifugal pump in physics principle that increases the pressure of liquid and solid particle mixture, through centrifugal force (a rotating impeller) and converts electrical energy into slurry potential and kinetic energy.

slurry pump

There are 2 kinds of slurry pump, horizontal type and vertical type, for vertical type pump, there are submersible slurry pump and underwater pump. Submersible slurry pump is widely used for drilling fluids transferring, underwater pump is used for fluids transfer. Horizontal slurry pump is also used for drilling slurry transfer, just the installation method is different to meet different mud tank size.

What is vertical slurry pump?

Vertical slurry Pump is the cantilever pump structure of single stage and single suction, with the bearing housing, supporting, intermediate pipe connecting the pump hydraulic components, the water is discharged out from the drain pipe parts, pump impeller is for semi-shrouded with the agitating vane on the vane extended, the main characteristic of this pump is the underwater pump shaft parts have enough rigidity, the impeller and pump shell have no bearings, no shaft seal, which can transport the greater medium of solid particles. The length of inserting the water by pump is between 800 and 2000, the suction pipe can be matched in case of need. Continue reading →

GN designed and produce a complete set of 10000feet drilling mud system, it is around 3000m dept and horse power 750HP. It including 4 mud tanks,recycling tank, active tank, mixing tank, mixing skid. It is a customized system according to client’s isea.

Technical specification of 10000 feet drilling mud system:

10000ft drilling mud system

1)      Recycling Tank (40feet Container Size) with 2 GNPS703 Shale Shaker,1GNZJ703 Mud Cleaner with 2x10inch Desander cones,12x4inch Desilter cones,and as well as desander desilter feeding centrifugal pump SB8x6-13(55Kw).And one trip pump for the trip compartment.

2)      Active Tank(40Feet Container Size) with Mud Agitators and Mud Guns.

3)      Mixing Skid(20feet container size) with 2 mud hopper, One SB8x6-13(55KW) Centrifugal Pump and one shear pump.

4)      Mixing Tank(40feet container size) with one SB8x6-13(55Kw) mixing pump and one mud hopper, completed with mud agitators and mud guns.

Usually clients will buy 10000ft drilling rig from USA, so the electricity is 460V60HZ, 480V/60HZ, GN drilling mud system can meet their electricity rate. And our explosion proof mark of the electric control system is class1, div 1. As a part of the land rig of 10000ft, our drilling mud system including pipelines from shale shaker inlet to outlet of mud pump charging pump, including mixing pipeline, water pipeline, mud gun pipeline, overflow line, suction line,etc. Also we provide mud gas separator installed on the trip tank( if the mud system has a separate trip tank.) In this 10000 feet drilling mud system, their trip tank is in the 1^st recycling tank, they have a trip compartment with trip pump.

Continue reading →

Brandt HS-3400 centrifuge is used to process unweighted and weighted, water-based and oil based drilling fluids(mud). Here we made a comparison between Brandt HS-3400 centrifuge and GNLW363VFD centrifuge.

GNLW363VFD decanter centrifuge

What is the difference and specs in common?

Continue reading →

GN desander, desilter have standard frame for hydrocyclones. This made our design, production high efficiently. For desander, we have standard GN1S with treating capacity 500gpm, GN2S with treating capacity 1000gpm, GN3S with treating capacity 1500gpm. For desilter, we have standard GN8N with treating capacity 500gpm, GN12N with capacity 1000gpm, GN16N with capacity 1500gpm. If you required large quantity, we can make other hydrocyclone qty according to your required treating capacity. Desander, desilter has no underflow shaker.

mud conditioner

Mud conditioner also called mud cleaner, some times we called desander, desilter, shale shaker 3 in 1. Also for mud cleaner, we have standard 500gpm, 1000gpm, 1500gpm mud cleaner with optional linear motion shaker or balanced elliptical motion shaker. Compared with separate desander, desilter, mud conditioner have the following advantages:

1 With larger shale shaker, can process mud better and recovery more drilling mud to save drilling cost.

2 Save space, you only need to place one machine which can do the job for 3 machines together.

Continue reading →

GN solids control is one of the most professional drilling mud system manufacturer. GN offers a variety of drilling mud sytsem to fit your need in oil & gas drilling, water well drilling, horizontal directional drilling, geothermal well drilling, Coal bed methane, drilling waste management, etc. We can be your first line supplier for all of your drilling needs.

The working principle of most of drilling mud system is to separate large solids or cuttings to recycle the drilling mud. A common drilling mud system will include shale shaker, desander, mud cleaner, decanter centrifuge, mud agitator, centrifugal pump, mud gun, mud tank with accessories. Sometimes we will reduce some equipments according to the drilling mud condition.

drilling mud system

What kind of drilling mud system we offer?

By transportation method:

Skid mounted mud tank system( common) and trailer mounted

By processing rate:

200gpm, 350gpm, 500gpm, 800gpm, 1000gpm, 1400gom mud system

By application:

Oil& gas drilling mud system, HDD mud system, CBM mud system, drilling waste management system

We provide technical support, layout drawing and flow process drawing, welcome to contact us for drilling mud system.