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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:

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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Shear pump is usually used together with Jet mud mixing unit, to be assembled as a jet shearing unit in oilfield solids control system.

Jet shearing unit

The jet shearing unit is formed by shear pump, mixing hopper, pipeline and polymer/clay hydrator. For installation transportation, the polymer/clay hydrator is formed by a separate compartment.

The pump should be located the liquid source so that the suction line can be short and reduce loses. The foundation should be sufficiently rigid and substantial to absorb any vibration and support the base plate at all points. The base plate should be installed in a level position.

Oilfield shear pump

The JQB series shear pump adopts a set of compound seal for no leakage at stuffing box. Inside pump is a 300series stainless steel turbine containing 44 nozzles, four scoops and shear plate. Fifty(50)% of the fluid is sheared twice each time through the pump. This turbine shear pump is mounted on a special base with belts and sheaves to drive pump, OSHA type belt guard and a electric motor. Included is a special hopper(ZHP150) with nozzle sized for this application and one mud kit as a package in order to build a complete shear and hydration system. The pump is designed to give longer service life through the improved shaft seal.

There are many principles of proper pump installation and application as well as special considerations for the pump design which, if followed, will further enhance the performance of your shear pump.

This document will deal with both general and specific recommendations for improved JQB series turbine shear performance in both oilfield and industrial applications.

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GN solids control is specialist of oil and gas drilling mud solids control in China. Since 2010 we started to attend important oil & gas exhibition in the world according to our major market.

GN main equipments:

Shale Shaker, Mud Cleaner , Desander ,Desilter, Centrifuge, Agitator,Degasser,Mixing Hoppers, Flare Igniter, Various Tanks, Pumps, Shaker Screens ,Mud Gun

GN major application :

1 land rig oil & gas drilling

2 offshore drilling waste management

3 trenchless drilling

Here is a list of world’s top 3 oil & gas exhibition collected by GN solids control.

1 OTC

Founded in 1969, the Offshore Technology Conference is the world’s foremost event for the development of offshore resources in the fields of drilling, exploration, production, and environmental protection. OTC is held annually at Reliant Center in Houston.

Each year, OTC attracts more than 65,000 attendees and 2,000 exhibiting companies representing more than 110 countries.

OTC is sponsored by 12 industry organizations and societies, who work cooperatively to develop the technical program. OTC also has endorsing and supporting organizations.

GN will take a complete mud recycling system there , we have a 108m2 booth for our system and equipments. Welcome to visit us in 2012.

2 SAOGE

SAOGE continues to be the largest oil & gas industry exhibition, ever staged in Saudi Arabia, offering clients unique access to the regions oil and gas sector.  

3 CIPPE

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World’s top 5 trenchless drilling rig manufacturers list collected by GN solids control.

As a trenchless drilling mud system manufacturer, GN has designed and manufactured many sets of complete mud cleaning/recycling system for trenchless drilling rigs, mainly used for horizontal directional drilling. Here we collect World’s top 5 trenchless drilling rig manufacturers list.

1 Vermeer (http://www2.vermeer.com/vermeer/AP/en/N/ )

2 Ditch Witch (http://www.ditchwitch.com/trenchless/directional-drills/ )

3 American Auger(http://www.americanaugers.com/ )

4 Astec Underground(http://www.astecunderground.com/)

5 Herrenknecht (http://www.herrenknecht.com/)

Vermeer and Ditch Witch are well known brand in the world.

1 Vermeer rig

There’s a lot to consider when purchasing or leasing a horizontal directional drill — features, durability, support, training and overall value. But one area often overlooked is the potential resale value of the unit.
Too often contractors will overlook the potential value of the machine after its useful life in their operation is over. In addition, as more contractors utilize leasing as an acquisition strategy, resale value becomes a more important component in the purchase decision.

Vermeer has distributor everywhere in the world, you can get good after-sales service from them easily.

To see GN solids control equipments for Vermeer trenchless rigs here:

Shale shaker, desander, desilter, decanter centrifuge, mud tank

2 Ditch Witch

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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 ?

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

1 shaker deck adjustment

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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Gas buster also called poor boy degasser or mud gas separator, which is used for oil and gas drilling. The description on oilfield glossary is “A simple separator vessel used to remove free or entrained gas from fluids circulated in the wellbore, such as mud used during drilling operations. The gas buster typically comprises a vessel containing a series of baffles with a liquid exit on the bottom and a gas-vent line at the top of the vessel”.

Gas Buster

is an important equipment to prevent well kick during drilling, so the production process should be strictly controlled. The process control including the following aspects:

1 Surface preparation

Steelwork:

Before all paint actions will be taken the surface to be coated must be clean and free from contamination. Sharp edges shall be rounded or smoothed to radius 2 mm. Hard surface layers shall be removed by grinding before blasting. All welds shall be fully sealed.

Abrasive Blast Cleaning:

As abrasive steel grit or copper slag can be used. If oxidation has occurred between blasting and application of paint, the surface should be reblasted to the specified visual standard.

Surface defects revealed by the blast cleaning process, should be ground, filled, or treated in the appropriate manner.

2 Painting

Intershield 300 aluminium GTA 220

Intershield 300 bronze GTA 220

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