Author: desanderdesilter

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Since its establishment in year 2007, GN Solids Control, has been growing and expanding fast. As a 100% private owned company, GN Solids Control has no much background. But ever since the owner started the company, he always believes that Quality is first, Price is second. Leading in this direction, GN win the good name in this industry.

 

GN facilities:

GN Solids Control started in a city named Tangshan, and its former name was Tangshan Guanneng. Later, 3 years ago, GN changed name to Hebei GN Solids Control and moved its main facility to another county in Langfang City, in order to get larger workshops and more advanced manufacturing facilities.

As the expanding of business in all over the world, GN Solids Control’s equipments and systems have been exported to more than 60 countries and regions, one facility is clearly not big enough, especially for most popular product decanter centrifuges. So GN Solids Control constructed a second facility, with 5 more workshops and a new office building, which are for centrifuges, VG dryers and other rotating equipments.

As a leading solids control manufacturer, shale shaker and mud cleaner are essential equipment for not only solids control systems, but also for the mud recycling systems for other drilling projects like HDD, TBM, water well drilling and etc. In order to better control the performance of GN Shale Shaker, GN started a shaker screen factory also. Now GN brand screens is enjoying good name among clients.

Now GN Solids Control’s new factory is nearly ready, and is scheduled to be open early next year.

It is located in the same industry zone as GN main facilities, only 7 kilometers away from the existing facility.

 

Both of the two facilities are located in Dachang Chaobai River Industry Zone, only 40 kilo meters from Beijing International Airport, China. May you have opportunity to come to China, welcome to inform us and visit our factories. Please kindly find links here www.gnsolidscontrol.com.

The mud tank design affected by the whole drill site and procedure , the surface pits or dirty mud storage is comprised by active circulation system to contain enough usable drilling mud to fill the drill hole . The active surface system will be divided into 2 parts : solids removal and addition suction parts . The solids removal equipment and degassing will be happen in solids removal parts like shale shaker , vacuum degasser , mud cleaner , etc . The addition suction part use adding fresh mud to the circulating system by mixing hopper and mixing pump and provide sufficient residence time for mixing together before mud being pumped into downhole . The slug tank normally use to pump small pills like LCM or barite slugs and each section further divided into enough compartment .

The equalisatio height between mud tank compartment is depend on the duty of the tank compartment . There is a rule that an adjustable equalizer will be need between the solids removal part and addition suction part . There are different mud tank compartment , the sand trap is the compartment under shaker to keep drilling mud after shale shaker . It should be the only settling compartment and preferably should not be used in closed toopsystem . There sand trap floor should have a 45 degree slope to its outlet for selfcleaning and 20 to 30 bbl size capacity .

 

The solids removal equipment will be arrange to remove different size of solids . Shale shaker is the first phase cleaning for bigger drill cuttings ,desander will be sit after shaker to separate sand out and desilter sit after to separate silt out . The decanter centrifuge will be installed depending on drilling condition for 2 to 7 microns separation of fine solids .

GN can offers customized solutions on the drilling waste management  field Welcome you contact GN group freely for solution.

 

While in complete steps of solids control, mud cleaner is the combination of second and third steps of the mud processing steps.  It is the combination of desander hydrocyclone, desilter hydrocyclone  and the shale shaker for treating process of the drilling fluid.  The main structure of the mud cleaner is define in two parts.  The upper parts are desander hydrocyclones and desilter hydrocyclones that shoot our solids to bottom parts of mud cleaner which is shale shaker.  This combination have the advantage of space saving and operation cost saving.

Drilling fluid mud cleaner is a filtering equipment of solid control purification system. Mud cleaner is composed by inlet, outlet pipe and hydrocyclones. Hydrocyclone is made of PVC, upper cone, and under cone. The overflow line, inlet line and outlet line is fixed by the clamp. The bottom inject outlet can be adjusted and changed it according to drilling cutting in drilling fluid. When adjust the bottom flow mouth, only need screw out the adjusting spray result. Screw on the adjusting spray after changed the bottom flow sand removal exit. The both side of desander are equipped the inlet mouth, when choose the side, the other side need to cover off by blanking cover.

Drilling mud enter into the hydrocyclone inner wall from the feeding of the  hyrocyclone mouth, then tangential enter into hydrocyclone cyliner with high spinning speed will produce the enormous centrifugal force field, the light drilling mud spin upper from the central low pressure areas, and discharged to drilling fluid circulating tank from the overflow exit. The heavy solid phase particles are throw to the cylinder wall by the centrifugal force, which is spiral sinking under the action of the thrust drilling fluid downward spiral and discharged from the bottom flow mouth, the flow to the screen surface.

In a complete oil and gas drilling solids control system, there is not only main equipments like shale shaker, desander, desilter, mud cleaner, and decanter centrifuge, there are also auxiliary equipments that play certain roles in the whole procedure, like the mud agitator, mud guns and mixing hoppers, and also the pumps for feeding including centrifugal pumps, submersible slurry pumps and shearing pumps.

The auxiliary equipments’ performances also affect the treating efficiency for the whole system. GN Solids Control, as the TOP solids control manufacturer in China, always sticks to its belief: Quality first, Price second. Even the mud guns, GN Solids Control also provide the best ones.

GNNJQ series mud guns have following main benefits:

1. for the mud gun nozzles, GN use polyurethane as material, for a better wear proof result and a longer service life. Unless other Chinese suppliers, who mostly use the metal like steel for the nozzle material, Polyurethane is for sure a better choice. Just like the hydrocyclones for desander or desilter, before, the manufactures all use steel ones, but now the high standard solution is the polyurethane ones, the service life is greatly prolonged.

2. GNNJQ series mud guns also suitable for higher pressure condition, its largest pressure is up to 6.4Mpa, which is the standard of high pressure mud gun. GN use this as standard level in order to provide more cost-effective choice for the clients, and of course, the safer usage.

3. the main body of the mud gun is made of national standard steel from reliable supplier. GN Solids Control always buying from large supplier with good reputation.

 

For other GN products also, like the bearings, GN uses SKF, FAG or NSK, the vibrating motors for shale shakers, GN uses Italy brand Oli or USA brand Martin. And for the design and manufacturing, GN has 10 patents already and another 5 pending. And GN QC department is always serious in inspecting the semi-products and products.

The technology of trenchless digging is developed from directional drilling technology, require very small area of surface for the construction.  it only needs very small inlet and outlet area excavation. All kind of underground replacements of the pipeline construction start adopt this technology for minimum interference of surface have high effect of keep the cost in control.

In 1970’s the technology was developed and now is widely use on horizontal directional drilling, piping, tunnel digging, piping type of detonation are some use this method.  Now are widely use in water supply and drainage.  Laying power, gas, communications lines. Any type of pipeline construction and repair of old pipeline.  The archaeology use this method of digging to minimal disturb the ancient structures.

Horizontal directional crossing (HDD-Mud Recycling System) technology in oil and gas industry are laying pipeline across waters like river and lake.  The hub of railroad obstacles and areas has important function  that cannot be disturb is obvious using through Horizontal Directional enlarge hole that common diameter of pipe in 1.5 times larger.

The method of solids control principle used in Horizontal directional drilling is the control of mud solid phase technology.  The technology purpose remove the harmful mud, solids and keep the good solids through process on mud filter and cleaning requirements.  The current use of horizontal directional drilling, the recovery mud solids control is system composed from small to large as end user requires.  The choices of mud solids control system is need according the basics in below:

 

It needs to be clean or inhibit particle variable types and size

It need to be maintain the quality of the mud

The size of ability in drill, removal of solids and operation cycle rate.

 

Solids control system function as environmental protection system that is requires in every region of the world who are digging in to earth to harvest resource underground.

It is known to all that for the oil and gas drilling projects, there must be a solids control system for separating out as much as solids cuttings, but in HDD projects, in many places in the world, the separation unit is not a legal request.

Recently, more and more countries are establishing laws requesting the mud recycling system or mud recycling units, and some clients, although their countries have not yet established such laws, the company owners decided to use mud units for their drilling works, because of below benefits a mud unit provide:

1. greatly save the usage of materials, including water, bentonite and polymer

2. save the drilling cost by lower down the discharge disposed.

3. responsible for the surrounding and environment friendly.

What’s the main equipments for a HDD mud system?

For a high standard configuration, there are 3 steps separation and 1 step of mixing, the separation equipments include: 1. Shale shaker, 2. Desander, 3. Desilter. In order to save space and make the mud unit more compact, there is always a mud cleaner playing a role as combination of desander and desilter. And mixing system is a jet mud mixer consisted by a mixing hopper and a centrifugal pump for feeding.

Of course, per different jobsite condition and composition of mud, end users could change the solution, some use without desander, some without desilter. And some adds equipments for a further and cleaner separation with a decanter centrifuge and even a dewatering unit.

 

GN Solids Control is the most professional solids control manufacturer in China who designs and produces mud systems for HDD drilling and other drilling projects. GN has a series of available capacities, not only high configuration, but also economic configuration, from 150GPM to 1000GPM for HDD, CBM, TBM and Piling or water well drilling. For larger rigs in oil and gas industry, GN provides solids control systems from 250GPM to 3000GPM.

 

In order to enable the systems to be movable and more flexible, GN has hydraulic hoist, containerized and trailer mounted solutions available.

GN Solids Control is the first manufacturer for waste management systems which are accepted by Russian market. Just a few days ago, GN has delivered a complete set of waste management system to Russia. Now, GN’s vertical cuttings dryer and its waste management systems are most popular among the end users. Although it is a tough year for all the oil relating industries, GN also sells lots of waste management systems to the clients and receives good feedback.

GNDC-40A is one of the 2 standard drilling cuttings waste management systems GN designed for different jobsite requests. GNDC-40A is more suitable for the waste management jobsites which are alongside with the drilling rigs, in this system, there is no tank for containing the liquid phase from the centrifuge, and the centrifuge is hosted at a certain height so that the liquid discharged from the centrifuge flows directly to the active tank of solids control system easily. And when matching with an effective set of solids control system, this drilling waste management system could work continuously.

GNDC-40B is another standard design of drilling waste management system designed by GN Solids Control. It is more suitable for the mud companies or somewhere specially for treating the drilling waste cuttings. In some countries, there is no need for a drilling jobsite to have a waste management system, and the drilling cuttings are transported and collected in a special place for further treating. In this case, we use GNDC-40B, which has a tank for the liquid discharged from vertical cuttings dryer and another tank for the liquid finally discharged from the centrifuge.

Besides above mentioned 2 kinds of standard drilling cuttings waste management systems, GN also has the individual modules for waste management equipments, vertical cuttings dryer, high-G drying shaker and high speed decanter centrifuge, each one could be regarded and used separately. In the coming CIPPE Shanghai, GN will show such modules, welcome to come and see.

Drilling waste cuttings management equipment is more and more used in the drilling industry nowadays. The main cutting drying equipments are the vertical cuttings dryer, drying shaker and high speed decanter centrifuges the cuttings transferring system. According to the different base of the drilling fluids and the cuttings transferring equipment, the drilling waste cuttings management system has several layouts onsite.

Almost the waste cuttings waiting for treatment are collected from the primary drilling solids control equipment like the shale shaker, de-sander, de-silter and barite recovery centrifuge. According to different transferring equipment, the different collection equipment would be used. If the user choose to use the auger as the cuttings delivery equipment, it is better to use the auger also as the waste cutting collecting equipment. The auger is located horizontally at the side of the solids control system mud tank; the length of the auger is decided by the mud tank length. The collected cutting was delivered to the drying equipment by another auger unit. If the user chooses to transfer the cuttings by using the slurry hose pump, then the cutting could be firstly collected by a hopper unit which is connected with a hose pump, the hose pump could transfer the cuttings to the drying unit through the hose. Using the auger would occupy much of the area of the drilling site, while the hose pump could be installed freely with less limitation of space.

As per different base of the drilling fluids, the vertical cuttings dryer or the high G drying shaker would be chosen. GN’s modular design vertical cuttings dryer is the main cuttings drying equipment for oil base cuttings, the effluence out from the dryer is stored firstly in a intermediary tank, then the effluence will be pumped to the waste decanter centrifuge for polishing. The water base cutting mostly transferred to the high G force drying shaker for treatment. GN’s modular design drying shaker unit has a beneath located catching tank for drilling fluids storage and pumped to the centrifuge for further treatment.

The decanter centrifuge could be installed on a telescopic skid, thus the active drilling fluids could flow back to the mud recycling system by gravity force. If the decanter centrifuge is installed on a low mud tank, then the effluence out from the centrifuge would first flow into the mud tank, and then pumped back to the mud recycling system.

 

At beginning of this month, GN has got an order for 2 sets of solids control systems for 1000 HP rigs which will be working in a middle east country, and the end user is a national owned drilling company in that country.

The 2 drilling rigs now are in USA, under fabrication, and the ordered solids control systems will arrive to the rig jobsite at same time when the rigs are ready. “It is a landmark and a great change of my company”, said the general manager of the drilling company, “because before knowing GN, all of our rigs and equipments were all from USA. GN Solids Control is the first China brand we use, and these solids control systems are only the beginning, but not the ending.”

This 1000HP rig solids control system contains following equipments:

1. main equipments:

2 sets of shale shakers GNZS703E-HB, linear motional, with 3 pcs of screens and vibrating G force up to 7.5 G.

1 set if vacuum degasser before the mud cleaner.

1 set of mud cleaner GNZJ703E-2S12N, same under flow shaker as shale shaker in 1st step separation, and polyurethane material cyclones 2 desander cones of 10 inch diameter, and 12 desilter cones of 4 inch diameter.

1 set of middle speed big bowl decanter centrifuge GNLW452C fixed speed with 1800RPM, for barite recovery.

1 set of high speed decanter centrifuge GNLW363CG fixed speed for fine particle cuttings separation.

2. auxiliary equipments:

16 sets of GNJBQ110DD double impeller mud agitators.

16 sets of GNNJQ80A-3X mud guns.

2 sets of GNSLS35A mixing hoppers

5 sets of GNSB4*3-13J centrifugal pumps respectively for feeding the desander and desilter cones of mud cleaner and the mixing hoppers.

2 sets of submersible slurry pumps for feeding the middle speed centrifuge and the high speed centrifuge.

“ After those 2 sets of solids control package from GN Solids Control, China, matching for the 2 USA made Rigs, we may consider next rig from China also. It is pleasant experience to deal with GN.” Said the drilling company’s General Manager.

 

Related Arciels:

• Solidification treatment purpose
• Drilling Waste Management System Types
• GN Mud Recycling System for HDD Drilling
• GN Solids Control centrifuge working for Algeria market

Drilling waste management is a future field with rich requirements. GN Solids Control is a experienced company to offer solids control equipment & waste management equipment. Recently, we have got two big project from overseas market & domestic market, both of them use our equipment for drilling waste / drilling cuttings management equipment.

Drilling waste equipment project for domestic market

The end user is China famous drilling contractor with drilling waste management dept. We can call it company A. A firstly check different brand of vertical cuttings dryer, and compare the performance. Finally, A only use GN Solids Control vertical cuttings dryer and return back all the other brands vertical cuttings dryer.  A also compare the working performance of GN decanter centrifuge & other China brand decanter centrifuge, and also want to return back the other brands decanter centrifuge. But they already pay 100% for the centrifuge, the supplier is not willing to accept the return back of centrifuge. So, they have to use centrifuge from other supplier. A company has 5 sets centrifuge from GN Solids Control and only use It in very hard environment, where the other China brand centrifuge is not working well.

Drilling waste equipment project for overseas client:

The end user of this project is Local drilling company with 5 land drilling rigs. They have over 10 years experience in oil exploration / oil drilling / oil production/ drilling waste management / drilling sludge treatment etc. GN Solids Control offer below items for their use.

2 sets vertical cuttings dyer with high skid for drilling cuttings management

3 sets screw conveyor system which transfer the drilling cuttings from shale shaker & desander & desilter to the vertical cuttings dryer.

2 sets screw pump for transfer the clean drilling mud back to the drilling mud tanks for reuse.

4 sets decanter centrifuge for solids control service. The centrifuge sets including 2 sets fixed speed centrifuge & 2 sets variable speed centrifuge, which is a good combination for flexible use.

 

Related Arciels:

• Drilling Rig Mud System by Helicopter
• Drilling Waste Cuttings Transferred Equipment in Waste Management System
• Drilling Waste Management System Design
• GN Vertical Mud Tanks for Helicopter Transportation