CBM drilling

One set 500GPM drilling mud recycling system was sent to Middle East for water well drilling. Besides the drilling mud recycling system for oil drilling, they also need drill water well for daily requirement for clean water. For the person living in Middle East, water is more important than oil. Sounds like a joke, but this is reality.
Water well is not so deep like the oil well, and the drilling cost is also very cheap comparing with oil drilling. However, both this 2 drilling processes need the drilling mud recycling system to speed up the drilling process and protect the drill bit. Water well drilling may not need the used drilling mud to be separated very clean as it is not requested strictly. Just like this 500GPM unit shipped to Middle East, it is a very compact
model, while it has all the necessary separation equipment.

2015.12.24_water_well_drilling_mud_system_500gpm

water well drilling mud system

It has one unit shale shaker GNZS703DZ with 3 panel screens which could remove out the solids always larger than 300 microns. This model is with the mud feeder on top of the shaker deck so that this shaker could be much more compact. As the water well drilling is always not so deep, hence, the solids coming out with the drilling mud is always not so hard. In this 500GPM mud recycling system, the de-sander cone is not equipped, but directly the de-silter cone would be used to separate the solids size of around 20 microns.
This 500GPM water well drilling mud system is a standard GN model GNMS-500G with 2 unit centrifugal pumps. One of each is used as feeding pump for the de-silter cyclone, and the other one is used for mud mixing, the mud tank is divided into 2 compartments. It has enough space for clean mud storage.
Though this 500GPM mud system is for water well drilling, it can also be used in other drilling project like HDD. As the working principle is completely the same. The customer killed two birds with only one stone.

GN Solids Control mud recycling systems are widespread in the world. Mud systems may be used in oil and gas area in addition to HDD, TBM Drilling, CBM Drilling or Water Very well Drilling. Last year, GN offered two sets of high construction mud recycling systems to get no dig drilling to 1 Asian client. Just some days and nights before, GN Solids control provided another set soil systems for one client coming from Philippine.
With a compact framework, this system is mainly used to distinct dirty mud can get clean up water. By using this set, each of our client can get water wherever possible, and solids can be individual out for further treating. The item mainly includes the following accessories:
1 . GN shale shaker GNZS594E-HB, 1 set
The dealing with capacity of this shaker will be 600 GPM. By using world renowned vibration motors like German OLI or USA Charlie, GN shaker can work to get a quite long time without cracked.
After the mud is shipped to the shaker from the serving box, the 4 portions shaker screens will distinct out most the solid waste. GN using good quality cable mesh to manufacture individuals shaker screens in order to keep going longer while also has a pretty excellent separating performance. GN likewise manufactures some other shaker window screens to replacement well-known shaker screens, such as Mongoose, Brant, Derrick etc .

2015.05.27 500gpm mud system
2 . GN decanter centrifuge GNLW363CG-VFD, 2 units
These 2 sets centrifuges both have one 14 inches rotating bowl. Running rate can be changed easily by employing touch screen when using the VFD manage box. GN VFD package is using ABB or Siemens electrical components for long life use. Different explosion proof cardboard boxes can be customized based on customers’ demands, such as IEC, ATEX.
The first variable speed centrifuge is rotating at a decrease speed compared with the second just one. It mainly used to separate out and about those solids with a greater diameter. On the other side, the second centrifuge is used to separate finer debris at a higher speed.
3. GN Screw Pump, 2 pieces
These 2 screw pumping systems are used to feed the decanter centrifuge without agitating the soil too much. GN is using well-known positive displacement pumps Netzsch.
4. GN Mud tank
All the above equipments tend to be fixed on one mud aquarium.

Related Posts

For the upcoming no dig show this September in Australia, GN solids control would like to show there one set self-contained 200 GPM drilling mud recycling system for HDD projects. As a leading manufacturer especially for drilling mud recycling equipment, besides the large footprint mud system for oil drilling, GN solids control could also provide compact structure design mud recycling system.
According to the HDD rig mud flow, GN’s economic mud systems are classified as 150/200GPM, 350GPM, 500GPM, 800GPM/1000GPM and 1500GPM. Just like the unit of 200GPM would be shown in Australia, though it is small footprint, it has all necessary functions for drilling mud recycling and mud re-configuration.

2015.6.19 gn 200 gpm compact mud system for hdd (1)

200 GPM HDD Mud System

Below is the equipment list for the 200GPM unit
1. GNZY753-4N shaker and de-silter composition unit which has the functions for first stage primary solids separation and second stage for drying the solid discharged from the 4” cyclones. This unit has a top located buffer box for well back drilling mud feeding, the bottom layer screen of this unit remove the coarse solids, liquid goes through the mesh screen opening and gets down to the storage tank. Pumped by a 15hp centrifugal pump, the liquid was transferred to the de-silter cone for fine solids removing. The upper layer screen with much finer opening would block and separate out the finer solid cuttings.
2. GNSLM20A-110 Jet mud mixer is used for adding the mud chemicals and re-configuration of the drilling mud. The beneath located mud tank was divided into 2 compartments and one of them is used for mixing and storing the active drilling mud. The mixing pump adopted is same with the one for feeding to de-silter cones. That would be much easier for future maintenance and parts replacement. The mixing pump could also be used as discharging pump for transferring the active mud to the rig.

2015.6.19 gn 200 gpm compact mud system for hdd (2)

Compact Design Mud System

GN also has more compact unit for de-sanding, by connecting the de-sanding unit with a customized mud tank, the operator could run the mud recycling system more fit their own project condition. For more information on GN compact mud system, you may contact with GN team without hesitate.

As per the feedback from the customers who are engaging in the pilling business, GN designed and perfect the economic mud recycling system specially for the drilling mud cleaning application in piling project. On the consideration of limited location area of the piling project job site, GN’s piling mud recycling system is designed with a very compact structure but with full functions for drilling mud recycling.

GN economic desander unit (2)

De-sanding Unit

Below is the standard configuration of piling mud recycling system with treating capacity of 500GPM.
Model: GNMS500-D
Flow Rate: 500 gallons per minute
Cyclone Specs.: 1 pc 10” de-sanding cyclone made from 100% polyurethane
Screen Specs.: Shale shaker with up and down 2 layers screen with total screen area of 2.23m2
Feeding Pump: Mechanical seal type centrifuge pump of 50 HP used to feed mud to the de-sanding cyclone
Cut Point: Solids Removable down to 40 microns
Catching Tank: Under located catching tank for mud storage. The tank is equipped with lighting system and ladders for easy operation.
Electrical Control System: Explosion, water, and dusty proof electrical control panel with SIEMENS or Schneider components

GN also has the model of GNMS200-D and GNMS1000-D available and the treating capacity is separately 200GPM and 1000 GPM.
The advantage of this type mud recycling system is cost competitive. By connecting with storage tank and mud mixing hopper, this de-sanding unit could also be used in other kind of project like the small horizontal directional drilling, micro tunneling and water well drilling.

GN economic desander unit (1)

Economic Mud Recycling Unit Layout

GN recommends the layout of this economic mud recycling system:
1) Mud Pit
2) Submersible Slurry Pump
3) Mud Recycling System
4) Storage Tank
5) Outlet Pipe
6) Jet Mud Mixer.
GN Solids Control also offers submersible slurry pump, mud storage tank, as well as jet mud mixer per request.
GN is now on promoting this type economic mud recycling system, for more information, you may sent inquiry to sales@gnsolidscontrol.com

World top manufacturer for solids control and drilling waste management equipment, they get an urgent request to deliver one high G shale shaker with one sump tank to be used as drying shakers for OBM (Oil based mud) cuttings.

Below is the detailed request of customer:

1- Quotation for drying Shaker and related skid itself.

2-  Quotation for 15 bbls sump tank with 1 x 4”  Flange and 1 x 2” Flange connection; the customer also attached pictures of a drying Shaker with sump tank.

3-  Shaker Screen: 140 API Size and 120 API Size.

4-  Two years spare parts.

For the sump tank, GN Solids Control engineer cannot make sure the position of the flange and inlet or outlet just for customer attached pictures,  so we put forward questions to specify following for quick solution:
1)  Please you send us drawing of the sump tank in order to see connection of the drying shaker,inlet & outlet, size, flange connection?
2) Or pls send us more pictures from different views to show item 1 information.

high G drying shaker

high G drying shaker

The customer give answers very soon as below:

1) We intend to install a shaker on a tank that length and width of the sump tank is exactly same as drying shaker length and width basket and we want the height of the sump tank to be at range of 1 m.

2) We need two flanges by 2″ and 3″ size to be installed on width side close to the bottom the tank to be able to connect a Welden pump (air supply type) and suck collected oil for the sump tank that has been installed below the H-G Drying shaker into the active mud system.

And customer further request: for drying shaker, they usually don’t need the back buffer box.

Based on above information, GN Solids control engineer give proposal as below:

1) High G drying shaker model GNZS594HGE-LD, with hoper feeding on shaker top for drilling waste management system.

2) Sump tank with length and width is exactly the same as drying shaker length and width basket, and total height with skid is 800mm for usable capacity 15bbls

3) Further more, GN Solids recommend its screw conveyor to transfer cuttings from solids control shaker to the high G drying shaker. Customer is satisfied and give orders.

There is a cleaning Tank for GN500 GPM mud recycling system for Saudi Arabia HDD rig, the tank is divided into 3 compartment, 1# Shaker compartment, 2# De-sander compartment, 3# Mixing compartment.

Detailed process features of GN500 GPM mud recycling system for Saudi Arabia HDD rig

1) Continues feeding of dirty slurry from mud pit to Shale Shaker.

The GN100YZ100A-30 Submersible slurry pump feed slurry from mud pit to GNZS703E Shale Shaker at capacity of 528 GPM.Slurry pump is made from Cr26 Abrasion resistant Alloy which allow users to pump high solids content fluids.

GN500 GPM mud recycling system for HDD

GN500 GPM mud recycling system for HDD

2) Pre-screening of the returned mud using GNZS703E Shale Shaker for the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This shaker can handle a throughput of more than 528 USgpm and is designed to remove particles down to 250 microns(60mesh) @ 7G force linear motion GNZS703E Shale Shaker with big screen area (2.63 ㎡)

3) Secondary and third cleaning of the returned mud using a GNZJ703E (10″×1 + 4″ × 8) Mud Cleaner.

1# GNSB5×4A-13J Centrifugal pump feed mud from 1# Shaker compartment to feed 10″×1 de-sander cones, where the particles larger than 50 microns are separated out by centrifugal force from desander cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen (150/200mesh) which again produces a virtually dry product. Major fluids with particle size less then 50microns goes to 2# De-sander compartment. This is the 2nd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

2# GNSB5×4A-13J Centrifugal pump suck mud from 2# desander compartment and feed to 4″x8 desilter cones. Where the particles larger then 16microns are separated out by centrifugal force from desilter cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen, which again produces a virtually dry product. Major fluids with particle size less than 16 microns goes to 3# Mixing compartment. This is the 3rd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

4) Integral mixing system using GNSLS35A-300 Jet Mud mixer for GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This GN500 GPM mud recycling system for Saudi Arabia HDD rig allows fresh mud to be prepared very rapidly from bentonite powder. One of the 2 pumps on tank end is dedicated to this function allowing continuous mixing or recirculation as required.

GN500 GPM mud recycling system for HDD

GN500 GPM mud recycling system for HDD

5) Integral charge pumps to supply clean mud back to the drilling rig.

The mixing pump above is a dual function pump, on mixing pump outlet with a T pipe can be controlled by a valve to provide a continuous supply of clean mud from 3# mixing compartment under pressure to the high pressure mud pump, avoiding problems of starvation and cavitations which can rapidly cause damage.

Vortex mud hopper is an important part of drilling mud mixing system. It is used to mix new qualified mud for drilling rigs. The drilling mud vortex hopper usually used together with a centrifugal mixing pump or shear pump to realize the function.

votex mud hopper

vortex mud hopper

GN Mixing Hopper Technical Parameters

Model Pressure Inlet Outlet Weight Dimension: L×W×H
GNSLS45A 0.25~0.4Mpa 6 Inch 6 Inch 174Kg 1100×680×949mm
GNSLS35A 6 Inch 6 Inch 174Kg 1100×680×949mm
GNSLM25A 4 Inch 4 Inch 113Kg 850×570×851mm
GNSLM20A 4 Inch 4 Inch 113Kg 850×570×851mm

Applications of drilling mud vortex hopper

Normally, vortex mud hopper used together with centrifugal mixing pump, 1 vortex mud hopper + 1 mixing pump, or 2 vortex mud hopper + 2 mixing pump, it is called jet mud mixer. If it widely used in oil and gas drilling, HDD, CBM, micro tunneling, piling, water well drilling, etc…

While the vortex mud hopper combined with shearing hopper, it is a shearing mixing. It is used while there is fibrin in the injected chemicals. Shearing pump will cut the fibrin before enter into hopper for mixing.

Jet Mud Mixing System

jet mud mixer

Jet mud mixer

China manufacturer GN Solids Control offer the world with drilling mud jet mud mixing.We are an exporter of drilling fluid jet mud mixer for Indian, Russian,middle east.etc.We manufacture and design drilling bentonite mud mixer,drilling mud tank jet mixer.We supplied to Oilfield Company of the Turkey Venezuela, Indonesia, Russia, the United Arab Emirates,Turkey,and Morocco and Century Int’l Oilfield Equipments LLC of the United Arab Emirates etc.choose us as supplier.Our factory and company are Quality Management System ISO 9001-2000 certified.

Functions of drilling fluids mud desilter

Drilling fluids mud desilter is the 3nd stage solids control equipment. It is usually used after desander. For mud cleaner used for oil and gas drilling field, 4 inch deciliter cone is the most frequency be used. It can remove solid particle around 30~70 microns.

Working principle of drilling fluids mud desilter

drilling fluids mud desilter

drilling fluids mud desilter

Main part of drilling fluids mud desilter is the hydrocyclone cone (desitler cone). It is a kind of pressure device. The separation process is carried out by employing centrifugal forces. Under pressure, drilling fluid with solid particles will flow into the mud desilter cones, after high rotation, bigger and heavier particle will be threw to cone wall, then slide down till drop in apex and separated out. Clean fluids will be moved out from cone top port. So, there will be 2 rotary gas flow in the drilling fluids mud desilter cone, one is liquid contains quantity big solid flow down as cyclone, the other is smaller solid mixed with gas go up as bow wave.

The angle of the fluid entry has been specifically designed to facilitate the flow and separation. The Cones are made of high durameter polyurethane with optional steel inserts, which ensure consistent productivity.
Desilter Cones remove fine sand and silt down to 30 microns.
Desilter Cones are available of 4″ size that have a 2″ inlet and a 2″ outlet.

Available models of drilling fluids mud cleaner

From design, there are mainly 2 types of mud desilter: with under flow shale shaker or without under flow shale shaker. For different capacity, the desilter cone can be used from 4 each to 24 each. Users can choose suitable models per his jobsite detailed condition.

Double deck shale shaker and High G shale shaker is widely used for oil and gas drilling rigs site.They can be used for both mud solids control or drilling cuttings waste management.

They are both linear motion shale shaker. Many customer do not know the difference of Double deck shale shaker and High G shale shaker. Below is the explanation from world top solids control and waste management equipment manufacturer – GN Solids Control. Let GN tell you the difference of the 2 types of shale shaker and choose the suitable model for your drilling rig.

Double deck shale shaker, linear motion: GNZS703D

double deck shale shaker linear motion

double deck shale shaker linear motion

GNZS703D is the typical double deck shale shaker. It utilized 2 each shaker screen for top deck and 3 each shaker screens for bottom deck.

Advantages of GNZS703D double deck shale shaker

1). For the same API size and the same area bottom shaker screen. double deck shale shaker can treat a bigger capacity. The wide-meshed shaker screen on top deck can separate most big size solids before the mud enter into the bottom deck. It greatly reduce the load of bottom shaker screen.

2). For the same API size and the same screen area shaker screen. double deck shale shaker can separate the drilling mud or drilling cuttings more dryer. As there are 2 times shale shaker separation.

Disadvantage of double deck shale shaker

The double deck shale shaker have advantages of bigger advantage and dryer separation result, but it has some difficult to change shaker screen. And the cost of replacement shaker screen also higher, as there are 5 each screen for a shale shaker.

High G shale shaker, linear motion: GNZS594

linear motion high G shale shaker

linear motion high G shale shaker

GNZS594 is a high G shale shaker model, with linear motion. It uses 4 panel shaker screen. And the shaker screen interchangeable with Swaco Mongoose shale shaker, composite material. It is single deck, relative easy to change shaker screen compared with double deck shale shaker.

Conclusion

So the user can choose shaker type per your drilling rig conditions and per your applications (for solids control or for waste management). If you have a higher solids content, or want bigger capacity, and take more time for screen changing is not problem, you can choose double deck shale shaker. If you prefer fast screen changing, high G shale shaker single deck is better.

Functions of solids control equipment- shale shaker

Solids Control shale shaker is the first stage separation equipment for oilfield drilling mud cleaning system. It utilizes vibrating motor to generate vibrating strength. The vibrating strength drive the drilling mud going through the shale shaker. When the drilling mud go through the shaker screen, clean mud will filter into mud tank. Not allowable bigger solids will pass the screen surface and been discharged.

solids control equipment -shale shaker

solids control equipment -shale shaker

Types of solids control equipment – shale shaker

Per different motion design. There are mainly 2 types of shale shaker:

1) Linear motion shale shaker. It is the most common shaker model for oil and gas drilling solids control system

2) Balanced Elliptical motion shale shaker. It is not recommended for oil and gas drilling, as the flow capacity is big. The BEM shaker, while mud flow not equal, the motion of the shaker will be changed. And performance not good. Mostly, professional users prefer linear motion for a wide use.

Separation size of solids control equipment – shale shaker

The separation size of the shale shaker equipment depends on shaker screen size. We call it API size or mesh size. The API defers from API 20 to API 325 per API RP13 standard.

Through changing different API size shaker screen, the solids control shale shaker can separate solids size min. above 40 microns (at API 325 shaker screen)

If you do not need to separate so fine solids, you can choose more fine shaker screen, Like 800 microns @ API 20.

The common screen API size for solids control shale shaker is API60, API80, API100, API140,API160. Customer can choose the suitable size per drilling mud condition.

solids control equipment -shale shaker

solids control equipment -shale shaker

Features & Benefits of GN solids control equipment- shale shaker

1) Heat treatment on complete shaker deck.
2) Vibrating Motor: Italy OLI brand, IEC Ex and ATEX Option available.
3) Electrical components: SIEMENS, Schneider Brand.
4) Shale Shaker Deck Bottom Screen Support Material Stainless Steel
5) Shaker Basket Material: Q345 High Strength alloy material.

6) G force of GN shale shaker can up to 7.5G. And adjustable. It can separate the drilling fluids more dryer.

7) Deck Adjustment (AWD): -1°~+5°

AWD Angle Adjustment System for GN solids control shale shaker

GN AWD Angle Adjustment System for solids control shale shaker is the patent design. It is synchronized change for both sides. You can adjust from any side, the angle change is the same for both side.

GN have a options for AWD Angle Adjustment: Left side of the shaker is a small motor for automatic control. And there are control for the small motor on shale shaker control panel. Right side of the shaker utilize tools for angle adjustment.  GN will offer tools together with the shaker. Customer can choose any way to change the angle.

Shale shaker can also combined with desander or desilter assembly and used as mud cleaner. For more information of GN solids control shale shaker, you can visit GN website or contact GN group.