May 28

Drill solids are the main contaminant of all drilling fluids and therefore their control is of the utmost importance. There are 3 main ways of controlling solids:

• Dilution

• Mechanical removal

• Gravity Settling

shale shaker for solids control

shale shaker for solids control

I ever saw in the water well drilling site in Mongolia that they do not use any solids control equipments but only dig several mud pits, by this way, it is very low efficiency and Environmental Pollution.

Solids control system is a way for mechanical removal the drill solids. Mainly it includes screen devices & Centrifugal Separation Devices. Screen devices is the most important equipment called shale shaker. In the future of solids control system, shale shaker will become the only solids control equipment which will be used instead of desander, desilter, mud cleaner, decanter centrifuge by improvement of its design. At present, linear motion shale shaker is the most popular vibration mode shale shaker.

But the arrangement of vibration motor various by different shale shaker manufacturer. Sometimes it is vertical installed, sometimes it is horizontal installed, it doesnot mean that horizontal installed shale shaker must be balanced elliptical motion shale shaker, it might be linear motion shaker.

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written by GN solids Control \\ tags: , , , , , ,

Apr 26

GNZS703 shale shaker produced by GN solids control has been widely used in oil & gas drilling. GNZS853 shale shaker is normally used for drilling cuttings treatment.

Below is the photo taken in South America oilfield drilling site. They use GN shale shaker to separate the large solids from the drilling fluids and get clean mud for reuse. Also they user GN shale shaker as a underflow shaker to help the performance of desander cone & desilter cone. 

shale shaker for sale

shale shaker for sale

To know how to operate GN shale shaker is much more important, also the maintenance. Only if you operate and maintain it according to the manual, you will use it same with Derrick, SWACO shale shakers.

1 Angle adjustment

The angle can be adjusted both under running and off condition.When delivered ,the deck is horizontal(0°) While operating with the same shaker screen, according to the worksite mud property, and feeding capacity ,by adjusting the deck angle in order to improve the treatment result .When the drilling mud run off, enlarge the deck angle to solve the problem. Angle adjustment range -1°~+5°rated angle 0°~3°

2 Pool configuration

A better pool configuration can maximize the screen area and such achieve better result. It is hard to set the deck angle at one time ,it needs the operation personnel adjusting several times according to the flow of the mud .The best pool configuration is when the mud covers the first and second shaker screen.

3 Screen tention

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written by GN solids Control \\ tags: , , , , , , , ,

Jan 17

GN solids control developed a new product- mini shale shaker, model GNZS752. It can meet the requirement for the clients who do not need so large treating capacity, but want to find an economic way to separate big solids from the drilling fluids.

mini shale shaker

mini shale shaker

GNZS752 shale shaker with unit treating capacity 264gpm, 2 screen panels with total screen area 1.35m2, G-force 6.3G adjustable, total power of this shaker is only 1.0KW, and total weight 800 kgs. Based on these parameters, we called it mini shale shaker.

This linear motion shale shaker GNZS752 can be widely used in HDD, water well drilling , shadow drilling and other drillings which need small treating capacity. After the new mini shaker is developed, there are many clients showed their interests. Before they have to use bigger shaker 2-panel GNZS852 or even 3-panel GNZS703. These shakers can treat the drilling mud better because of their large treating capacity, but it is a waste of money.

Comparison between GNZS752 and Brandt mini Cobra 2-panel shaker

Motor power: Brandt mini Cobra is 1.1KW x 2 , GN mini shaker is 0.5KW x 2

Screen area: Brandt mini Cobra is 1.6m2, GN mini shaker is 1.35m2

Screen panel: Both of them are 2 panel

Screen type: pretension, repairable

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written by GN solids Control \\ tags: , , ,

Sep 01

Vibrating screen normally called shale shaker in oil and gas drilling industry. GN solids control produce vibrating screen machine and replacement screens for it.

Working principle of vibrating screen:

GN vibrating screen

GN vibrating screen

By the motor force and adjusting the amplitude of the eccentric shaft, vibrating screen moves quickly like a circle. Materials in the sieve case can be saperated and screened from the sieve pore in this process.

Vibrating screen in Venezuela

We are seeking for a distributor in Venezuela to have some of our shaker screens in stock, the local market’s requirement is very large. If you are interested in GN distributor in Venezuela, and have large enough warehouse and good client’s network, pls contact GN solids control.

GN vibrating screen model:

By treating capacity:

80m3/h, 120m3/h, 150m3/h, 200m3/h

By vibration motion:

Linear motion and balanced elliptical motion

By screen panel qty

2-screen-panel, 3-panels, 4-panels

By location of buffer box( inlet method):

Top-buffer-box, back-buffer box

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written by GN solids Control \\ tags: , , ,

Aug 05

GN solids control choose Italy Oli brand vibrating motor for all our shale shakers. Vibration motor is important components for shale shaker, I will introduce briefly about vibrating motor installation & maintenance.

1 How to install vibrating motor ?

shale shaker vibrator

shale shaker vibrator

 (1). Before installing vibrator, turn off and lock out/tag out all energy sources to mounting structure according to ANSI standards。

(2). If using a cutting torch or welding, test atmosphere for gas level or dust content.

(3). Make sure mounting surface is strong and flat, 0.25 mm acros vibrator feet. (This will minimize internal stress to vibrator casting when tightening mount bolts.

(4) Make sure mounting surface and vibrator are clean and free of debris, paint, and oxidation.

(5) Before installing vibrator onto mount, apply thread sealing compound to all bolts.

(6) After the vibrator has been operated for 10 to 20 minutes, check bolt torque. Tighten if necessary

2 How to  maintain  vibrating motor?

(1)Clean dust on shell regularly

(2)Before operating, must check the bolts to confirm whether there is loose or not. Otherwise, we must screw bolts tight before running shaker

(3) Inspect the cable, whether there is wear, hold down, crushing, etc.

(4) the vibration motor should be under good lubrication during operation:

Motors before fixed on shaker, the bearing is filled with SKF specific lubricate grease, the temperature range is -40 ~ 200℃

During running, every 2000 working hours user should makeup LGHP2 lubricate grease once. Every bearing can not be filled over 25.8g.

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written by GN solids Control \\ tags: , , , , ,

Jul 29

GNZS703 shale shaker is widely used for oil and gas drilling and directional drilling in the world.

1 shaker deck adjustment

LMSS
LMSS

A spring-loaded plunger and reversible pawl provide a ratcheting action during movement of the operating handle. A full 180 degrees of movement is possible in both directions. Depending on pawl setting, moving the handle in one direction turns the jack screw to raise or lower the screen frame, while in the other direction the jack screw remains stationary during handle movement. The spring-loaded pawl permits the operator to switch the direction to either raise or lower the screen frame, as required.The angle of the discharge end of the screen frame is infinitely adjustable within the equipment’s available range.

2 shale shaker maintenance

(1)Inspect discharge duct connection on side of hopper for leaks. Tighten connection and/or add silicone sealant to prevent leakage.

(2)Inspect cover on unused hopper discharge connection for leaks. Tighten connection and/or add silicone sealant to prevent leakage.

(3)Using a water hose, wash off accumulated process material from screen frame, interior of hopper and AWD angle adjustment components.

(4)Excess process material in these areas may impede angle adjustment of screen frame and can reduce screen frame vibration if the frame bottoms out on the buildup.

(5)Check for and remove any accumulation of process material or other obstruction in feeder interior. Feeder blockage may cause excessive splashing and uneven distribution of slurry onto the screen bed.

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written by GN solids Control \\ tags: , , , , ,

Jul 15

GN solids control will attend Argentina Oil & Gas Expo 2011 in Otc. We just came back from Brazil Offshore 2011 last month with big success.We will attend the show with our exclusive agent in Argentina together, welcome to contact us by English, Portuguese, Spanish, Chinese languages.We have experienced Technician and Sales there to be ready to service for you.

GNZS703 shale shaker

GNZS703 shale shaker

General info. about

AOG 2011

  • Show Name: Argentina Oil & Gas Expo 2011
  • Show Time: 10th to 13th Otc 2011,14:00~21:00 p.m.
  • Venue: La Rural, Buenos Aires, Argentina
  • GN Booth numberQ12
  • GN Booth Area: 38m2
  • What GN show? GLW355X1250N high speed decanter centrifuge and GNZS70-3 linear motion shale shaker, etc, welcome to check our equipments during the show.

GN equipments and system can be used for the following projects:

1 HDD mud system

2 onshore drilling solids control system( oil & gas drilling, water well drilling, coal-bed methane drilling, geothermal well drilling,etc)

3 drilling waste management

4 liquid mud plant ( to prepare for clean mud)

high speed decanter centrifuge

high speed decanter centrifuge

What will be exhibited in the show?

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written by GN solids Control \\ tags: , , , , , ,

Jun 03

GN new designed GNZS63-4 shale shaker is mainly used for drilling fluids separation for oilfiled drilling.

GNZS63-4 shale shaker

GNZS63-4 shale shaker

What consist of GNZS63-4 shale shaker?

Deck adjustment, vibration motor, shaker deck, base frame, support, baffle box, explosion proof starter, shaker screen, wedge plate, torsional spring ,etc.

Feature of GNZS63-4 shale shaker

(1). Adopt two sets same vibration motor take advantage of double motor in-phase principle, shaker deck makes linear motion vibration at 45°sling angle, some spare parts are interchangeable with other brand shale shaker

(2). Adopts high quality reliable vibration motor provides long time operation without any problem.

(3). Shaker screen can be flat type or pyramid one. According to drilling mud property the screen can be 10~200mesh

(4) Shaker screen will be tensioned by wedge plate, this is more convenient and easy for operation it is very reliable

(5) Shaker deck is adjustable, the adjustment is worm wheel and screw type. Beside shaker deck two sides middle shaft is connecting two worm, when we make adjustment the shaker deck will be consistent and in-phase

(6) The complete shaker body will be treated by sand-blast, paint it by anticorrosive painting so it is more anti-corrosive and better appearance.

Specs of GNZS63-4 shale shaker

1 Vibrating motor: 2 x1.94KW

2 Screen Area: 3.15㎡(33.9 sq ft)

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written by GN solids Control \\ tags: , , , , ,

Feb 24

GN designed a new patent linear motion shale shaker, GNZS70-3B. It is designed to replace the previous model GNZS70-3 shale shaker, which is found not so economic and practical before.

 Specification of GNZS70-3B shale shaker

1 Vibrating mode: Linear motion

2 Single deck shaker with 3 screen panels

shale shaker

shale shaker

3 Quick lock( wedge technology operation), which enables screen panel replacement in less than one minute. In drilling site operation, time is more important than money, so easy operation of screen replacement is necessary. It enables for an easy ratchet-type installation of the wedges, which eliminates hammer damage to the screens, as well as the paint on the sidewall of the shaker basket. You do not need any tensioning bolts or system, which can provide a small parts inventory, thus enabling cost savings to be realized.

4 Adjustable while drilling (AWD) mechanism enable faster and easier deck angle changes., adjusment from1 degree down hill to .5 degree up hill.

5 Weir height: Until now we still can not provide operational weir height, the weir height of previous model is 900mm, and for the new designed model is 750mm.

6 Available screen types, PWP(flat panel) and PMD(pyramid screen)

7 Available screen area: 29.6m2

8 Feeding method: optional from back or from top tank

9 Treating capacity: 600gpm

10 Vibrating motor: Italy Oli brand vibrating motor, explosion proof, 220V/380V 50HZ or 230V/460V, 60HZ, 3phase, protection class IP55.

11 With standard screen underflow sump

12 High G force, max 7.5G, and it is adjustable

13 All the link bolts are SS304 material

14 ISO and API certified

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written by GN solids Control \\ tags: , , , , , ,

Apr 13

How to use a vibrator of shale shaker, it contains two keys: disassembly of the bibrator of shale shaker, reassembly of shale shaker. And you need exactly remmber that disconnect power to the electric motor and lock the disconnect swithch in the open position.

Disassembly of the Vibrator of Shale Shaker
WARNING: Disconnect power to the electric motor and lock the disconnect swithch in the open position.

Shale Shaker Motor

Shale Shaker Motor

1. Remove motor and drive pulley guard.
2. Remove the counterweight guard from both ends of the vibrator shaft.
3. Loosen the four motor support bolts located under the motor, loosen the V-belts and remove them.
4. Remove the V-belt sheave , by first loosening its taper lock hub.
5. Remove the counterweights , by removing the clamp screws and reusing the screw to open the slots in the counterweights, by tightening the screws into the tapped holes.
6. Remove the collars  and the retainers  with the Spiro lox rings  in their grooves. Remove cartridge cap screws.
7. Remove retaining ring  from the drive side only. By striking on one end of the shaft  with a lead hammer or a hammer and a block of hardwood, it is possible to start to drive out the cartridge  on the other side.
8. Then it should be easy to pry either or both cartridges loose from their bores in the housing ends. If difficulty is experienced a cartridge can be bumped from the inside by striking the shaft again at the other end. When one cartridge is removed the shaft can be slipped from the housing. Continue reading »

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