Drill cuttings are separated by shale shaker, decander, desiler, decanter centrifuge, and collected by screw conveyor or vacuum unit , for further separation of vertical cutting dryer & decanter centrifuge.

drill cuttings separation

In an ideal situation, all drill solids are removed from a drilling fluid by solids control equipment on a drilling operation. The two primary sources of solids are chemical additives and formation drill cuttings. Drill cuttings are contaminants that degrade the performance of the drilling fluid. If the drill cuttings are not separated, they will be ground into smaller and smaller particles that become more difficult to remove from the drilling fluid.

Most formation solids can be removed by mechanical means at the surface. Small particles are more difficult to remove and have a greater effect on drilling fluid properties than large particles. The particle size of drilled solids incorporated into drilling fluid can range from 1 to 250 microns (1 micron equals 1/25, 400 of an inch of 1/1000 of a millimetre).

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Whatever the drilling is, if only there is mud system, you will have mud mixing and agitation issues after a period of drilling.

Mud mixing equipment

GN jet mud mixer is specially used for mud mixing. GN Jet mud mixer is composed of a venturi type hopper and a centrifugal pump, we have 4 models available, GNSL150-45S,GNSL150-35S, GNSL100-25S,GNSL100-25M with 1320gallons/min, 880gpm, 400gpm and 264gpm mixing capacity.

Mud mixing and agitation equipments

How a venturi hopper work?

The fluid velocity must increase through the constriction to satisfy the equation of continuity, while its pressure must decrease due to conservation of energy: the gain in kinetic energy is balanced by a drop in pressure or a pressure gradient force. An equation for the drop in pressure due to the Venturi effect may be derived from a combination of Bernoulli’s principle and the equation of continuity.
Mud agitation equipments

Mud agitator is mainly used for mud agitation, sometimes for mud mixing. Also in some applications, vacuum degasser also be called a” big mud agitation equipment”.Mud agitator is composed of electric motor and gear box, the popular connection method is direct connection, in some countries, they still use shaft connection mud agitator.

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GN has 4 units of poor boy degasser in stock, in addition, we have 9 units of flare ignition device in stock, which is worked together with poor boy degasser as safety equipments in the oilfield drilling.

poor boy degasser in stock

The poor boy degasser model in stock:

How poor boy degasser work to be anti-H2S?

( harmful gas , including but not limit to H2S)

1^st way: The main material of the poor boy degasser body is 16Mn(Q345A), which is low alloy, high strength steel.

2^nd way: By 3 layers of Marine Anti-Corrosion Zinc Rich Expoxy Paint:

(1). Sand Blast Treatment before painting.

(2). Two pack Epoxy zinc

(3). Two Pack Epoxy hi-build containing anticorrosive pigmentstwice.

(4). Surface pigmented with high quality light fast  PU pigments

To buy poor boy degasser in stock, welcome to contact GN solids control.

Here share some new photos taken at CIPPE 2013( the largest petroleum show in Asia), which is held in Beijing at New China International Exhibition Center.

GN at CIPPE 2013

We take a lot of new equipments there, mainly divided into 3 sections:

1) 1 set of complete 500gpm trailer mounted mud system) for HDD( horizontal directional drilling)

2)1 set of drilling waste management system( trailer mounted) for drilling cuttings treatment

3)22inch big bowl big volume centrifuge GNLW553G

4) Mini mud cleaner (desander cone only),shaker screens

They include all GN main applications, HDD& CBM, oil & gas drilling solids control & drilling waste management. Generally speaking, the oil show is successful. Most solids control manufactures in China & in USA shared their new developed equipments. For example, trailer mounted mud system, Flocculation unit, Continue reading →

GN has 6 units of flare igniters in stock, they are widely used for oil & gas drilling operations, usually works together with GN own designed mud gas separator. The flare igniters are used for connecting to the gas discharge line of mud gas separator, and fire the dangerous gas from the drilling mud like H2S. GN manufacture the flare igniter according to API &ISO standard, which meet most of the oil industry applications.

flare igniters in stock

The upper part of the flare igniter is stainless steel, and it is designed for rain proof , water proof in the oilfield. The major components for the electrics are from famous brand like Siemens or Schneider. The power of the electric can be directly from industry normal power, or users can charge the battery and take the unit for remote areas application. GN flare igniter is with remote control, and PLC is optional available for less manpower notice for continually and automatically working.

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GN has 6 units of vacu-flo degassers for sale, with electricity 440V/60HZ, 3phase, explosion proof and flame proof. It is well packaged and ready for shipment. If you have requirement on Vacu-flo degassers or vacuum degassers for your drilling mud system, pls contact GN immediately.

Technical specs of Vacu-flo degassers for sale

Vacu-flo Degassers

Note: You do not need feed pump for GN vacu-flo degasser.

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Mud guns are meant to provide supplemental or primary mixing in mud tanks depending on the number being used and the pit size. They are best used in tank corners to keep solids from settling and a mud agitator is placed in the tank center.

Mud Gun

How to operate the mud gun?

A. Safty information

TURN OFF. LOCK OUT, and TAG OUT the electrical power supply to the pumps feeding the mud guns before servicing.

Inspect the unit regularly, and replace damaged or worn components only with parts supplied by the original equipment manufacturer.

Before entering a mud tank for any reason, the mud agitators should be locked out and tagged out.

B. General maintenance

1. Grease the swivel once a week. Add (2) shots of a multipurpose NLGI no 2 grease.

2. Visually inspect the mud gun assembly for any leaks, loose fittings once a week. Repair as required.

3. Inspect mud gun jet nozzle for excessive wear. The nozzle has a 5/8” bore when new. The nozzle should be changed when the bore is 7/8” or higher. This should be done once a month.

Once installation is complete, the unit can be started by turning the feed pump on. The direction of discharge may be modified to suit the operators requirements by rotating the swivel.

How to calculate the mud gun qty on a mud tank？

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Ditch Witchis an American brand of underground construction equipment, the company is a source for trenchers, vibratory plows, backhoes, electronic guidance and locating tools, drill pipe, down hole tools, chain, teeth and sprockets, vacuum excavators, excavator-tool carriers, and compact utility machines.

GN 200 GPM Mud System

Ditch Witch horizontal directional drill  is widely used all of the world , GN solids control provide horizontal directional drilling mud system/fluids treatment system for HDD rig. The basic features of such HDD mud system are compact, efficient, portable. It should be with the following functions:

1 recycling of drilling fluids from the mud pit, to re-use for the rig and less influence on the environment

2 Easy to be moved from one jobsite to another

3 compact footprint, do not need to disassembly any equipments during road transportation

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What is the difference in operation between positive displacement pump and centrifugal pump?

Positive Displacement Pumpswill not p roduce the same flow at a given speed (RPM) no matter the discharge pressure.

positive displacement pump

Positive Displacement Pump must not be operated against a closed valve on the discharge side of the pump because it has no shut-off head like Centrifugal Pumps. A Positive Displacement Pump operating against a closed discharge valve, will continue to produce flow until the pressure in the discharge line are increased until the line bursts or the pump is severely damaged – or both.

The positive displacement pump can be applied as

• rotary lobe pump
• progressing cavity pump
• rotary gear pump
• piston pump
• diaphragm pump
• screw pump

When positive displacement pumps serve as a screw pump for feeding drilling fluids decanter centrifuge, when you change the frequency of the main motor through the VFD control panel, the treating capacity of decanter centrifuge will change, so the flow rate need to be lessed.

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Closed loop drilling fluids system (sometimes referred to as closed mud or pitless system)are system which do not need mud pits, which can greatly reduce or eliminate the discharge of toxic drilling wastes on site.

What mud systems need mud pits?

closed loop drilling fluids system

1 HDD  mud system need mud pits, the drilling mud flow to mud pit, and the slurry pump installed into the mud pit transfer the mud to HDD mud cleaning system, and the processed mud is pumped to the rig again.

2 At a typical oil & gas drilling site, drilling fluids are circulated through the wellbore, then the fluids and drill cuttings are deposited in a reserve pit dug near well. This pit is used to hold used drilling fluids and wastes. There are many potential problems from pits — leaky liners and overflows can lead to soil and water contamination, pits can produce odors and toxic air contaminants, and pits can be a hazard for birds and wildlife.

What is closed loop drilling fluids system?

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