HDD machinery

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.

500GPM is a very common capacity for mud cleaning system. How to choose the right equipment for 500GPM mud system system.

Below is a standard proposal from world top solids control specialist – GN Solids Control. GN now have a complete set 500GPM mud cleaning system in storage for sale:

Solids Control Equipment for the 500GPM mud cleaning System

500gpm mud cleaing system for sale1) One Linear Motion Shale Shaker GNZS703
2) One Mud Cleaner with Desander / Desilter
3) Centrifugal Pumps 6×5 (37kw) for feeding to desander/ desilter
4) 40 Feet Size length and width ISO container size with fast fixing on trailer.
5) Centrifugal pumps completed with mixing hoppers for you drilling mud mixing.
6) Transfer function for transfering clean mud to the drilling rig mud pump.
7) Mud Agitators and Mud guns for agitation of the mud.
8) High quality mud tank attachment for easy operation and safety, Handrails can be fold up to the side of tank without removing during shipment.

Mud tank size for the mention proposal of 500GPM mud cleaning system is a common standard; it can meet the shipment limitation of most countries. GN can also customize other tank size per customers’ requirement on tank storage capacity.

For equipment, GN can also change other model per different requirements of different jobsite. For some jobsite, they may only need separate desander and desilter without the underflow shale shaker, it is also option.

For a more exact proposal, no hesitate to contact GN Group now.

GN have just came back from Australia from a NO DIG drilling show there. GN take a compact 200GPM drilling rig mud system for the show. The mud cleaning system is in stock for sale now.

It is a complete mud cleaning system with a tank, a double deck shaker with mud cleaner, mixing system, electric control system, and tank accessories.GN200 GPM mud system for HDD

Suitable applications of the GN200 GPM drilling mud system:

1) Water well drilling

2) Horizontal directional drilling (HDD)

3) Coal bed methane (CBM drilling)

Parameter of the GN200 GPM drilling mud system:

1) Mud tank

2) Double deck shale shaker combined with 4 each 4 inch desilter (the same dimension desilter cone with Derrick cone)

3) Mud mixing system (mixing pump and mixing hopper)   GN200 GPM mud system for HDD

Advantages of GN200 GPM mud system for drilling:

1) The double deck shale shaker is combined function of shale shaker and mud cleaner, but much more compact and have a very limited footprint.

2) Centrifugal pump for mixing and feeding interchangeable with NOV Mission

3) Desilter cone interchangeable with Derrick

4) The whole system is in very compact design and take a limitation footprint

5) Ladder, guardrail and walkway are foldable, easy for movement

If you have interest on the system, contact GN group freely for more information.



Last week, China top solids control Manufacturer: GN Solids Control exported a complete mobile unit mud system to Kazakhstan. It is a 500GPM mobile mud system specially designed and made for DHH drilling rigs.

Mobile mud system is a kind of fast movement system. GN Solids Control have much experience on mobile mud system used for HDD drilling rigs.

Mobile mud system for HDD drilling rig to Kazarkstan

Strong points of GN 500GPM mobile mud system for HDD drilling rig:

1) Mud tank with same dimension with 20 feet container

2) The mud system is separated with the mobile skid. It can be taken off and used as skids mud system

3) Linear motion shale shaker. With the same shaker screen with Swaco Mongoose shaker

4) Centrifugal feeding pump interchangeable with NOV Mission pump

3 stages solids control equipment including in the 500GPM mud system:

1) GNZS594 linear motion shale shaker, 1 set (interchangeable shaker screen with Swaco Mongoose)

2) GNZJ594-2S12N mud cleaner, 1 set

3) Jet mud mixer, 1 set

4) Centrifugal sand pump 2 sets feeding for mud cleaner (desander and desilter)

More for information on GN500 GPM HDD mud system mobile unit, or if you have any inquire on HDD recycling mud system, contact GN group at Email: Sales@gnsolidscontrol.com

GN Solids Control is one of the leading manufacturer who are specialized in both oil & gas drilling rig, as well as compact mud system for HDD, CBM drilling. 500GPM mud recycling system for HDD and CBM is one of the most common model from GN Solids Control.

CPP(China Petroleum Pipeline Bureau),the largest HDD contractor in China, by now, they have already got nearly 30 sets mud system from GN Solids Control. Before they shift to GN, they bought mud system from U.S. And many user contact GN for mud system as they see GN 500GPM mud system running world wide with CPP worldwide activities.

GN 500GPM HDD mud recycling system

GN 500GPM mud system for HDD is a high configration including all the 4 phase solids control equipment. For higher standard, it includes 2 tanks to insure sufficient space to store the active mud. For some users wants system more compact, GN offer 1 tank system with all 4 phase treatment equipment on it.

Solids Control equipment included in GN500GPM HDD mud system under High ranking:

1) One unit 500GPM linear motion shale shaker is proved by both home and abroad customers as a well performed unit.

2) Mud Cleaner is designed 2 units De-sander cyclones and 12 units De-silter cyclones to meet a maximum 1000GPM capacity is case damage of any cyclone leading to broken down.

3) One uint GNLW363G decanter centrifuge  separate ultra fine solids in drilling mud greatly enhance the quality of mud. (Centrifuge is for option)

GNLW363 centrifuge




Hookstrip screen panels

Is the most common type of shaker screen, consisting of one to three layers of screen cloth. The cloth is frequently bonded to a thin perforated metal grid plate or a plastic grid. The next figure shows the construction of a typical hookstrip shaker screen. Soft hook shaker screen

The shaker screen panel is tensioned on the shaker deck by an interlocked hookstrip and drawbar arrangement located on both sides of the shaker. Three or more tensioning bolts are used to pull each drawbar down and towards the side of the basket. This seats the screen on the shaker deck and distributes even tension along the hookstrip.
Pyramid screens
Have been introduced to the oil industry in recent year. This wave design increases the area of the screen by 40% over the flat shaker screens. This increase in conductance is only relevant if the screen is completely submerged in drilling fluid.PMD shaker screen

Frame panel shaker screen

occurs when for repelcement of requirest from jobsit. Like GNZS703 shaker screen from GN Solids Control. The shaker screen mounted with wedge to the shaker deck. It is easy for fast repelcement.Wedge type shaker Screen

Desilter is the third phrase solids control equipment. It is usually used following shale shaker, desander.

Desilter is usually combined of a under fluid shale shaker and desilter hydrocyclone assy.

GNPS752-12N Mud cleaner

Under fluid shale shaker:

For a better separation result, many users will choose a under fluid shale shaker under desilter hydrocyclone assembly.

Solids phase discharged from desilter cyclone can be further separated by shale shaker. Useful mud falls into tank for recycling.

Hydrocyclone Assy:

4’’ hydrocyclone is most widely used for desilter in oil & gas drilling field. And quantity can customized per clients requirements, vary from 4 each to 24 each.

Compact design desilter

Compact design desilter

Advantages of GN brand desilter

As world top solids control manufacturer, GN Solids Control have following strong points compare with othes:

1) Big underflow shale shaker: GNZS752 for better separation and compact design with small footprint of non-underfluid model

2) 100% Polyurethane (PU) ,material for desilter cnoes with longer using lift, and interchangeable with Derrick.

3) Shut off stainless steel ball valve available for option on each cone inlet permit individual cone removal and inspection without interrupting operation of the desilter

4) Tangentially blended into the cone entry as a narrow rectangle to minimize turbulence in the upper section of the cone, allowing the solids to move quickly to the cone wall.

5) Flexable fast connection are available for user friendly assy.

We need a compact mud system. Usually it is the first sentence the HDD clients required, HDD is different from Oil & Gas drilling works, not so big rigs, and not so heavy work, and …

GN Solids Control have done a lot of work to optimize the system for the application of HDD project. And we get we paid, after trial our first mud system, CPP like all other clients, repeat their orders, 20 more, 10 more, and repeated.

Each horizontal drilling project is unique, with its own set of challenges. Sometimes these challenges relate to logistics, such as site layout or accessibility. Other sites may present challenges related to a difficult bore profile or infrastructure that complicates navigation. Still others required careful planning and preparation to work within strict administrative rules or regulations. Finally, and generally most significantly, some sites pose challenges imposed by the geology or lithology of the formations to be drilled. Each site has the potential to present a combination of these challenges, particularly those associated with geological conditions.

Then back to the question, how to choose a compact HDD mud system. Firstly, if you know a professional HDD mud system company, no such question, ask them for a proposal. GN Solids Control usually is a good choice.

repeat hdd mud system to cpp

Secondly, ask your self a few questions to recheck your supplier:

1. Did they solve all my questions right now? Any more proposal more than my expected? Like:

2. A professional solution.

3. A lot of customer list.

Download GN Solids Control presentation here, if you want the one with customer names, contact GN consultants.

We’d like to protect the environment,  usually we choose more environmental friendly product. Health and Safety Executive is also a very important part in HDD project. And the the law require us to do the same. Once a customer told us, that is why we choose a professional company to cooperate, and also that is why a lot of consultant company lives. We need good quality products, also competitive price.

In England, HSE is undertaking a campaign to increase compliance with legal requirements for increase compliance with legal requirements for drill rig and pile rig guarding, HDD is an important part of it.

There are complete introduction for usual rigs, small rigs, large rigs. Key parts of rig to which access should be prevented:  Stake down augers.

HDD mud system

In Australia, usually a HDD drilling company will hire one HSE consultant or have one HSE engineer to take part in all process.

As far as we know in Singapore, Hongkong, America, and so on, have special requirements about HSE.

As list in the checklist for HDD in HSE (UK), One important part is: Suitable and Sufficient Risk Assessments and safe system of work developed, Site-specific authorised Permit to drill, Method Statement, Plant Electrical Earthing arrangements satisfactory, site communication arrangements.

GN have cooperated with a lot of Australian clients for HDD project, and also cooperated with CPP for a lot of foreign projects, freely to contact for professional advice.

Or kindly check my next post, how to choose a compact mud system.

HDD mud recycling system is usually compact system which is convenient for moving,if we design a horizontal directional drilling mud system with some equipments can act dual functions,that would be great.

Requirements of clients for mud mixing pump.

With the pumps I believe that you do not need a stand alone pump for mixing . During HDD operations you stop to mix

HDD Mud Recycling System

HDD Mud Recycling System

between drill pipe changes , before lunch or before commencement of work in mornings . Its not often that you need to mix when pumping with the drill rig as the mud needs hydrate any way . The supercharge pump can be used for this by having a valve . The supercharge pump can also be used to pump mud back into the desilt tank , because with HDD normally there is lots of time when the desilt pump is on and sucking dry because there is no drilling occurring or there is not sufficient volumes coming back from the pit slurry pump to keep it charged efficently . Pumping clean mud back into the desilt tank also agitates the sludge at the bottom of the tank makes it easier to clean out . It also keeps the mud weight down and dilutes the fluid before going through the cones and further more the mud gets constantly recirculated resulting in cleaner drilling fluid .   This a key area for a good system in HDD and does not cost alot to install onto the system ! A 5×4 pump can operate this easily and also pump to the rig concurrently .

You are free to consult GN Solids Control for customized HDD mud recycling system for your application.