Dec 21

Centrifuge tank works as second phase separation in mud cleaning system. This part is necessary for oil & gas drilling, for deep and complex geological structure drilling operations. Centrifuge tank generally have below options for drilling company:

14-inch-decanter-centrifuge

Option 1: rent centrifuge from solids control service / centrifuge rental company

Compared with other solids control equipment, centrifuge price is higher, as well as the higher cost on maintenance and manpower cost. As the centrifuge is not working during all drilling operations, some drilling company only rent the centrifuge when they need it.  For short terms, the rental service is helpful to drilling contractors, saving cost, time and saving works.

But from long terms, rental centrifuge will lead to higher cost, not as cost-effective as having it’s own equipment.

Option 2: buying centrifuge and train the workers to do the job

If the drilling company have many drilling rigs, and the drilling operations will last for many years. Having their own centrifuge will be much better.

GN Solids Control is China leading centrifuge manufacturer, can sell centrifuge to client or rent centrifuge to client in some area with GN office.

GN can offer middle speed centrifuge, high speed centrifuge, fixed speed centrifuge or variable speed centrifuge, motor drive centrifuge, hydraulic centrifuge etc.

If the client have enough budget, we recommend 2ea VFD centrifuge for each rigsite.  The VFD centrifuge can work flexible at any bowl speed, conveyor speed or differential speed, to achieve the best performance.

If the client budget in tight, we recommend 1ea VFD centrifuge & 1ea fixed speed centrifuge. The VFD centrifuge can work as flexible role and the fixed speed centrifuge can lower down the total cost.

Even the fixed speed centrifuge can change speed, by replacing pulley with belt, just taking more time and more manpower than VFD centrifuge.

If you need more information about decanter centrifuge, pls contact us freely.

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Aug 02

GNMS-500D mud system is economic standard offer for diamond drilling rigs / gold exploration clients. With this unit, the solids in millimeter level can be removed out 98%, and 100microns to 1mm can be removed 64%, and 2microns to 100microns can be removed 25%. GNMS-500D mud system is 2 phase separation unit with shale shaker & desander cones. If the user wants to remove more fine solids, other equipment is required to get better performance.

We can do below improvements based on GNMS-500D mud system.

2015.8mud system

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Apr 22

Oil price is going down from end of 2014, many drilling rigs stop to drill, thus lead to the equipment suppliers go down of the sales amount, like rig companies, solids control companies, pipes, drill bits etc. However, the drilling waste management field is still strong. We have to support our company with drilling waste management equipment sales this year and also extended to other fields, like horizontal directional drilling, core drilling, mine drilling, diamond drilling etc.

Recently, we just finish one set skid mounted waste management total solution for on line drilling waste management, water based mud. The customer use the Hi-G dryer and centrifuge system to treat the drilling cuttings discharged from shale shakers and recover the useful water based mud and reduce the impact on the environment.

hi G dryer and centrifuge system

1) Hi-G dryer and centrifuge system

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Feb 11

GN designed and produced oil drilling solids control system and drilling mud recycling system have been operated in the rig sites of 60 countries in the world, including Cuba. Estimates of total oil reserves in Cuba are varied, and depend mainly on estimations of undiscovered offshore deposits in the North Cuba Basin. Fearing an oil spill in Cuban waters, U.S. officials have forged a bond with the Castro regime to preserve the threatened marine ecosystem that connects the island nation to the Florida coast.

Below photos showed the workover rig solids control system used in Cuba: It including one set of XJ450 workover rig solids control system and one set of XJ650 workover rig mud recycling system. The main configurations are as below:

XJ450 workover rig solids control system:

2 units of mud tanks with mud agitators, mud guns, hoppers

1 set of mud gas separator

1 unit of water tank

1 unit of waste collection box

XJ650 workover rig mud recycling system:

2 units of mud tanks with mud agitators, mud guns, hoppers and shale shaker GNZS703E-HB

1 unit of diesel tank

1 unit of water tank

1 unit of fuel tank

1 unit of waste collection box

1 set of mud gas separator

The main features of these mud tanks are not traditional Rectangle tank, but V-bottom tank for easy cleaning of solids. Except for such design, we can also provide customized design tank like round bottom tank for easy cleaning, trailer/wheel mounted mud tank for easy transportation, and 3-runner oilfield standard design mud tanks. The mud tanks qty and total system volume can be also customized. If only the end-user have such special requirement, we will try our best to provide the best solution for your rigsite.

Pls contact either GN solids control or GN solids America for a customized proposal.

Related Arciels:

20141018_171318_副本

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Jan 06

GN Solids Control mud tank system is widely used in many countries and areas. Some oil drilling contractor may buy one complete mud tank system with 3 to 7 mud tanks; some third party service company may buy one or tank mud tank system professional for intermediary use.

Recently of 2014, we sell one mud tank system with single mud tank & 2 mud agitators & 2 mud guns to Middle East, the customer is locally strong oil service group company with solids control service branch & drilling waste management service branch. They have CD518 High Speed centrifuge, 414 low speed centrifuge (used for barite recovery system), Shale shakers, Minimum shear mixing tanks, Oil separation equipment, Oil separation equipment etc.

Hi-G dryer shaker

Early of 2014, the customer buys 3 Hi-G dryer shakers from GN Solids Control. They use the Hi-G dryer shaker for water based mud drilling cuttings treatment. The Hi-G dryer shaker with four panel shaker screen which is replacement for Swaco Mongoose shaker. They customer can buy enough shaker screen from us in stock for their projects; or they can source it locally for urgent use.

Single mud tank system

After the Hi-G dryer shaker purchase order, the customer issue one more order for single mud tank system. The mud tank is shipped by bulk vessel with longer shipping time and higher freight cost. In spite of these disadvantages, impressed with GN Solids Control Hi-G dryer shaker quality, the customer insists on buying the mud tank system from us directly.  The mud tank system is including one mud tank with necessary accessories, 2 mud agitators with double impellers & 2 mud guns for tank cleaning.

SINGLE MUD TANK SYSTEM

 

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Nov 30

Mud tank is the base for mud system, all the solids control equipment should be mounted on mud tank for operation. We have large quantity of mud tank sales in domestic market; for overseas market, we recommend customer do it locally to avoid pretty high freight cost. However, there are still some customers from Middle East and Africa bought mud tanks from us due to instable of local political issues.

Recently, we ship one mud tank with mud agitators, mud guns to Iraq. The customer is locally oil service company with many years industrial experience. The mud tank will be used as drilling mud storage tank.

mud tank

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Jun 29

GN solids control designed a standard mud system for mine slurry solids separation, which includes GNLW223 decanter centrifuge, GNZS752 shale shaker and a compact size mud tank, which is installed on top of the trailer. The total system capacity is 100L/min for the slurry.

Mine Slurry Solids Separation

Mine Slurry Solids Separation

Mineral exploration methods vary at different stages of the process depending on size of the area being explored, as well as the density and type of information sought. The most common drilling for mine is diamond drilling. Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites.

GNLW223 mini decanter centrifuge specs:

 Centrifuge Model

GNLW223G

Centrifuge Type

 

Electric Drive

Fixed Speed

Max Capacity

150Liters/Min

Normal Capacity

100Liters/Min

Bowl Diameter

220mm

Bowl Length

660mm

Beach Angle

8

Effluent Ports

6 Adjustable

Max Bowl Speed

4000RPM

Typical Bowl Speed

3800RPM

G-Force (Typical)

1770

Main Drive HP

15HP

Conveyor Type

Axial

Gearbox Ratio

57:1

Back Drive HP

N/A

If you require mine slurry solids separation system, pls contact GN sales.

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May 22

As a part of rig package, mud system is a separate but an essential part, the handling of drilling fluids can save huge cost of drilling. In the early oil industry open earthen pits were used as settling area to separate solids and mud thereby acting as a solids control equipment.

mud system for a rig

mud system for a rig

Now, with the stringent environmental regulations and high mud costs, the economics of an effective mud system come into consideration. Different solids control companies introduce zero-discharge systems, closed-loop systems, “quick move” technology, screening technology, disposal options etc. No reserve-mud pit is used in a truly closed mud system. Mud is continually processed primarily by mechanical means, such as screening, hydrocyclone and centrifuging to remove solids initially. A second stage to remove colloidal solids is by wastewater cleanup techniques.

Major components of a mud system, including:

Mud gas separator, flare ignition device

Shale shaker, mud cleaner(or desander, desilter), vacuum degasser, decanter centrifuge , centrifugal pump, mud hopper,  mud agitator, mud gun, mud tank and others, such as cutting dryer, screw auger, mud cooling unit,etc.

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Feb 28

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

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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Nov 22

There are 4 models mud agitator available, GNJBQ5.5, GNJBQ7.5,GNJBQ11, GNJBQ15. GN horizontal agitators utilize worm gear reducer. Welding type or casting type impeller for option. The updated GN mud agitator with the best brand gear box and use FAG bearing to last the gear box life.

GN mud agitatorstructure:

mud agitators

mud agitators

The impeller is fixed to the shaft with bolts to avoid rotating or sway. Its vertical location on the shaft is determined as a height from the tank bottom corresponding to the impeller diameter times 0.75. If dual impellers are desired, straight blades are mounted on the bottom and the canted blade impeller is installed at a point about two-thirds above the tank bottom.

The keyed motor and driven impeller shafts are rigidly connected by a multi-piece coupling, which uses tapered locking bushings to secure the shafts together. Shaft lengths are customized to suit customer specifications. For shafts longer than 8’, a stabilizer is mounted on the tank bottom to support the lower end of the shaft.

Mud agitator maintenance             

Mud agitator maintenance consists of checking gearbox oil level and oil condition and greasing gearbox bearings at required intervals.

1 Before operation, lubricate gearbox with L-CKE/P 220~320# worn gear oil  or with L-CKE/P 320~460# worn gear oil.Verify that lubricant level in the gearbox reaches the bottom of the oil level plug.

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