Tag Archives: shale shaker

GN Linear Vibrating Screen for Domestic Core Drilling Fluids Cleaning

As long as the equipment is used for projects which involve separating works, there are something in common. For example, the drilling projects need to treat the slurry by removing the particles, and for mining projects there are vibrating screens used for collect certain particles with correct sizes. As a leading manufacturer and solution provider in separating works, GN Separation is able to suggest clients the most suitable equipment or system.

2023.07.21 dewatering vibrating screen linear motion

Just recently, GN Separation has finished the manufacturing for a vibrating screen system for a core drilling fluid cleaning project in domestic China. And the main equipment is a linear motion vibrating screen which was designed for mining. This machine, together with some other equipment, were used for core drilling fluids cleaning, including following:

1. Mining vibrating screen GNLMP 1224. It is a self-designed equipment with screen size nearly 3 square meters. GN has an advanced facility with cutting, welding and painting procedures. All side walls of the vibrating screen is made of a whole plates without any welding in order to ensure the strength. All screens are screen panels made of polyurethane and service life is longer than 6 months.

2. Customized mud gas separator. It is originally an equipment used in oil and gas drilling, for removing the gas from the drilling fluids. In fact, in other drilling works, there is some gas in the fluids shall be removed. This equipment is customized based on oil and gas mud gas separator, suitable for the core drilling.

3. Centrifugal pump GNSB6X5j-370c and collection tank. Centrifugal pump is anther core product of GN Separation for different applications. Also, GN has other pumps and conveyors available.

For more technical information or commercial information, welcome to contact GN team freely or visit GN factory.

GN Solids Control System for oil drilling to India Company

Solids Control equipment and system are always the core products for GN Solids Control. As is clearly shown, the Solids Control is the main parts in GN’s company name. Each year, GN designs and sells tens of complete solids control systems to lots of oversea countries. Sometimes, GN makes the equipment sets for a whole solids control system for clients to build up their own mud tank systems in their own facilities. This system is a complete drilling fluids solids control system for a client from India. It is a repeated order from GN old customer.

2023.06.15 Decanter Centrifuge

This drilling fluids solids control system contains following equipment:

1. Double deck shale shaker GNSZ706J. Shale shaker always shows up in the first stage to remove the largest share of drilling cuttings. Comparing with a single deck shale shaker, a double deck shale shaker can increase the treating capacity by 30%. The drilling mud falls onto the upper deck of shaker with comparably coarse screens for the 1st separation, then onto the lower deck with finer screens for the 2nd separation.

2. Vacuum degasser GNZCQ270. A degasser is used to remove the gas bubbles from the drilling mud. It can help to protect the pumps after the vacuum degasser. GN Vacuum degasser has a special design which doesn’t need an additional feeding pump. It is always located after the shale shaker and before the desander and it can also plays the role as a large mud agitator.

3. Desander GNWSJ-2S. This is a desanding unit without underflow shaker. It is fed by a centrifugal pump and is used to remove particles larger than 40 microns.

4. Desilter GNZS752-12N. Desilter cyclones are used to remove particles larger than 20 microns, and it is also fed by a centrifugal pump. This one is equipped with an underflow shale shaker with 2 pieces of screens.

5. Drilling fluids decanter centrifuge GNLW363D. Decanter centrifuge is used to remove the fine particles from the drilling liquid, ranging from 2 to 5 microns.

6. Mud tank system including centrifugal pumps and mixing hopper.

Based on your own standards and requests, GN team can give customized solutions.

3 Pacakge Drilling Rig Solids Control Equipment for South America Customer

Solids Control system is an essential part of a drilling rig system, which is used for remove the drilling cuttings from the expensive drilling mud. In this way, the clean mud can be returned to the drilling procedure and to be reused. On the other hand, it is also protecting the environment by discharge less waste.
In a complete drilling solids control system, there should be shale shakers, mud cleaner, decanter centrifuge of middle speed, decanter centrifuge of high speed and the feeding pumps for the mud cleaner and centrifuges.
Just recently, GN Solids Control, the leading manufacturer in China in solids control industry, has provided a client from South America totally 3 sets of solids control equipment, including following:

2022.12.21 Decanter Centrifuge

1. shale shakers with model GNZS594J for 3 packages, totally 12 sets.
2. Mud cleaner, GNZJ594J-3S16N, each rig system need 1 set of mud cleaner to play the roles for desander and desilter cones.
3. Centrifugal pumps for desander and desilter cones, they are same as mission magnum centrifugal pumps.
4. Middle speed decanter centrifuge for each package, with model GNLW363D-GP.
5. High speed decanter centrifuge for each package, with model GNLW363D-VFD.
6. Screw pumps for each centrifuge as feeding pump.

Functions of each equipment: in fact, the solids control system are used for removing the drilling cuttings from the mud in a physical way, which means, each step of separation is based on the drilling cuttings’ particle sizes. The shale shakers are used to remove the most particles larger than 100 microns. Desander and desilter are working with centrifugal force generated by the cyclones’ structure, and their cuttings points are respectively 40 and 20 microns. The middle speed centrifuge are used for removal of particles from 5 to 7 microns, which here means barite recovery. And the high speed centrifuges are used for removing particles from 2 to 5 microns, extra fine ones.

If you need equipment like this or a turnkey solution even including tanks, please contact GN directly.

Desander Desilter and Degasser for China Drilling Company

Drilling companies or drilling contractors are always rig owners who win projects all over the world drilling for oil exploration companies. Along with each rig, there is a solids control system, and a solids control system is comparably independent system among the 8 systems for a rig.

2022.12.13 Vacuum Degasser

In a complete solids control system, there are following equipment involved:

Shale shakers, desanders, desilters, degasser, decanter centrifuges and pumps. In a recent project, a China drilling company has just purchased from GN Solids Control following equipment for a solids control system:

1. Desander GNZJ752J-1S. The desander cones are located after the shale shaker, which is used to remove particles above 40 microns. For this desander, there is a drying shaker with 2 pieces of shaker screens and a screen size of 1.35 square meter. Normally for weighted mud there should be a desander or desilter with underflow shaker. Here it is a one desander model with a 10 inch diameter desander cone.

2. Desilter GNZJ752J-8N. This desilte is located after the desander. It is called desilter cause it is used to remove particles larger than 20 microns which are mostly sized as silt. Same as the desander, it has an underflow shaker, too. Both the desander and desilter are fed by centrifugal pumps.

3. Vacuum degasser GNZCQ270B. Vacuum degassers are located after the shale shaker while before the cyclones. GN Vacuum degasser has no need of a large power. Instead, it can be regarded as a large agitator. GN Solids Control has 2 models of vacuum degasser available and the GNZCQ270 is the smaller one. Besides the vacuum degasser, GN Solids Control also has centrifugal degasser available.

In fact, GN is even more professional for design a complete turnkey solution involving all equipment like shake shakers, mud cleaners, middle speed decanter centrifuge and high speed decanter centrifuges. And all pumps needed in the solids control system are available.

Double Deck Linear Motion Shale Shaker for Europe Client

The year 2022 now comes into the last month, and GN factory is still fully scheduled with new orders from all over the world. Recently, GN just finished the manufacturing for a batch of double deck shale shakers for oil and gas solids control for an European client.

2022.11.26 Double Deck Shale Shaker

GNZS706 double deck shale shaker has following features:

1. The shaker model is GNZS706, which means there are totally 6 pieces of shaker screens on the shaker. 3 pieces of screens are mounted on the upper deck, with a total screen area of 2.0 square meters and the lower deck also has 3 pieces of shaker screens with a total screen area of 2.6 square meters. Total screen area is 4.6 square meters.

2. Working principle of the double deck shaker: the upper deck of shaker is equipped with coarse screens as the 1st step separation and the lower deck we use comparably finer screens. In this way, the treating capacity is increased and the screen mesh is better protected for longer life.

3. GNZS706 double deck shaker has the quick pressing device for changing shaker screens easily and quickly. And such device is quite durable for performance. This function highly facilitates the operators when changing shaker screens.

4. GNLW706 double deck shaker uses 2 sets of vibrating motors which generate a linear motional high G force. It is suitable for both land rigs and offshore projects.

5. The shaker screens used on GNZS 706 Shale shakers are also made by GN Solids Control. GN Solids Control has a separate shaker screen factory with robot cutting and welding, producing high quality shaker screens.

Other famous solids control brands also have double deck shakers available, for example, VSM 300 from NOV Brandt is quite a popular model in Europe. Client for this order is buying GNZS706 for replace the existing VSM 300. GN Solids Control also has single deck shale shaker models, with 2 or 3 or 4 pieces of screens. For more information, welcome to contact GN direcdtly.

How to Choose a Suitable Solution for a Drilling Waste Management System

According to the environment protection laws and regulations in many countries, the drilling waste management system is mandatory for a drilling rig’s solids control system. A complete drilling waste management system includes 2 systems, one is to treat the drilling cuttings discharged by the solids control shale shakers, which is used for reduce the cuttings for a safe discharge, and also for recovery of the drilling fluids. The other is drilling fluids waste management, which is used to remove the extra particles in the drilling fluids after a long time recycling in a solids control system.

2022.08.15 Solids Control Centrifuge

1. Drilling cuttings waste management system. In a word, this system’s first mission is to minimize the cuttings to be discharged. Based on different mud type, the first separation equipment is different.

1.1. For oil based mud, which is used in most of drilling fields, a vertical cuttings dryer is more efficient. A vertical cuttings dryer is a high speed rotating machine which uses the centrifugal force to splash the liquid to through a mesh while the same mesh is used to block the cuttings. GNCD930 series vertical cuttings dryers can reduce the oil on cutting to below 5%.

1.2. For water based mud, a high G drying shaker is a better choice. It is similar as a shale shaker. And the main differences from a solids control shale shaker are: a high G shaker has a larger G force and the feeding of a high G shale shaker is like a hopper.

2. The second step for separation, for both the OBM cuttings and WBM cuttings is always a high speed decanter centrifuge, which is used to remove the finer solids particles in the liquid after the first equipment’s work. Unless a solids control centrifuge, this centrifuge for drilling waste management is always equipped by a VFD control panel, which is more flexible for variable mud condition.

Next time we will talk about the drilling waste management system.

Two Sets HDD Mud Cleaning System for SINOPEC

HDD is a quite common way for pipeline works in cities or for pipelines across the rivers or so. This word is short for horizontal directional drilling. Just as other drilling, the drilling mud is to be used for HDD and the drilling mud should be well treated and prepared for reuse. A complete mud cleaning system for HDD always includes following steps for separation:

2022.08.04 HDD Mud Cleaner
1. Shale shaker. In many mud cleaning systems or so called solids control systems, the shale shaker is always the first step for separation. It is used to remove most of particles and also the largest particles. In those 2 systems GN recently made for SINOPEC, the shale shakers are GNZS703F. This shaker model is quite popular in HDD projects and also used for oil and gas solids control systems. It has a screen area of 2.63 square meters provided by 3 pieces of shaker screens each sized 1250*700mm.
2. Mud cleaner. In fact, in an HDD mud cleaning system, there are always desander cones and desilter cones. Desander cones are of 10 inch diameter, which is used for removal of particles larger than 40 microns. And the desilter cones are of 4 inch diameter for removal of particles larger than 20 microns. A mud cleaner is a combination of desander cones and desilter cones, with a shared underflow shaker for drying.
3. A mud mixing hopper is a must for a HDD mud cleaning system, which is used for adding the loss components into the recycled drilling mud in order to prepare the drilling mud for the future drilling. A mud mixing hopper has a hopper and a centrifugal pump, the hopper can be located together with pump by the mud tank, or on tank top with the centrifugal pump on tank bottom.
4. A decanter centrifuge, which is not a must but quite efficient in high configuration systems. A middle speed centrifuge like GNLW452D is used to remove particles from 5 to 7 microns. And a high speed centrifuge is used to remove particles from 2 to 5 microns.
Welcome to consult GN for more information.

GN Solids America Successfully attend 2022 Offshore Technology Conference in Houston

Just days ago, GN Solids America, attended 2022 Offshore Technology Conference in Houston, bringing GN popular products together with their peers from USA and European countries, and attracted clients all over the world. For this year’s OTC, GN Solids America brought shaker screens, vacuum pump and ViST vacuum shaker screen to the exhibition. Those are all quite popular products among GN’s products.

2022.05.04 OTC Gate AD

1. Shale shakers. As a professional shale shaker manufacturer, GN also pays a great attention to the shaker screens, cause a shale shaker’s good performance is greatly affected by the shaker screens. And shaker screens with accurate API number can ensure a good separation and a high conductance is a must for reaching the requested treating capacity. GN shaker screens have the both features. Meanwhile, GN shaker screens have a long service life and reasonable prices.

2. Sludge vacuum pump. It is also called a solids pump, cause it can transfer large solids or even all dry solids like sand and mud. It can be used in various applications, such as oily sludge transferring, animal waste, industry slurry, sand and etc. It can suck from a long distance and discharge even longer. And, it is not driven by any electricity, instead, it is fully air driven, so it is suitable for all Explosive proof requests.

3. ViST vacuum shale shaker, which is used to reduce the drilling waste from the shale shaker. It is fixed onto the last piece of shale shaker, and it is suitable for WBM, OBM and SBM. It helps to reduce waste by 30%-50% and one set of ViST can serve for 1 to 3 sets of shale shakers.

If you missed the OTC, welcome to GN office and warehouse in Houston for more information about the company and products.

Treating Capacity and Cutting Point of Desanding Units

GNMS Series Desanding units are one kind of mud treatment systems which are quite popular among clients in TBM, piling and HDD projects. This kind of desanding units are always a compact skid with 2 steps of separation machines and a mud pump, and also a catch tank on below for recycling.

IMG_20220118_105415

It can be divided into following components based on the functions:

1. First step separation, by a bottom deck shale shaker. There should be a pump from outside the desanding unit for transferring the mud to the desanding unit’s lower deck shale shaker. The lower deck shaker shall have a set of coarse screens, normally API 10 or API 20 to remove the large particles from the slurry.

2. Catch tank on below. On below the shale shaker, there is a catch tank, which is also physically holding the shaker. The small particles will go through the lower deck shaker into the catch tank, then there is a pump to transfer the slurry from the catch tank to the second step separation.

3. The second step separation is provided by the cyclones. Based on the system’s requested capacity, the sizes and quantity of cyclones are different. For example, the GNMS-200D uses 4 sets of 4 inch cyclones and the GNMS-1000D uses 2 sets of 10 inch cyclones. After the cyclones, the solids phase falls onto the upper deck shaker for drying and the liquid phase is transferred to outside the desanding unit. And the wet solids will go through both screen decks and enter the next separating procedure.

So the cutting point of the desanding unit is determined by the cyclone sizes, and the capacity is limited by the cyclones, too. While the transferring pump is chosen per cyclones’ feeding need. For more information, welcome to contact GN sales team directly.

Liquid Mud Plant Provided by GN Solids Control

Liquid mud plant is also called LMP, which is used for preparing, storage and treatment of the drilling mud. In a complete liquid mud plant, there should be 3 mainly drilling mud tanks for different purpose:

2020.09.29_Liquid_Mud_Plant

1. Mixing Tank.

Mixing tanks are always cuboid shaped mud tanks equipped by mud mixing hoppers. Those hoppers are always Venturi hoppers linked to centrifugal pumps. When pump is sucking mud from one compartment to another, and when mud is passing the Venturi hopper, there will be a sucking force to suck in the chemicals from the hopper.
Mixing tanks have mud agitators and mud guns, too, for stirring up the mud in order to prevent settling down. Meanwhile, there are also pumps for transferring the prepared mud from mixing tank to others.

2. Treating tanks.

When used mud is delivered to the liquid mud plant, the dirty mud shall be treated by separation equipment in order to remove the particles and to be returned to the storage tanks. The separation equipment are mainly shale shakers and decanter centrifuges, and when there are extra fine particles, there should be chemical dosing for flocculating.

3. Storage tanks.

Storage tanks are not complicated in pipelines and always using single guardrails. There are no divided compartments inside a storage tank and the most commonly used equipment are mud agitators and mud guns. Both mud agitators and mud guns are used continuously for stirring the drilling mud from being settled down to the tank bottom. Clean mud will be safely storage in those tanks.

GN Solids Control has 2 kinds of storage tanks available, the cuboid shaped ones and the cylinderic ones, each type has its own advantages.

If you have such project or tender, welcome to contact GN team for consultancy or quotation.