Oct 15

Mechanical sealing for centrifugal pump

Centrifugal pump is the regular pump use for solids control system and drilling oil system,GN solids control try supply reliable pump to every client

Mechanical seal as important point to decide pump’s quality and service life,was pay attentioned by GN solids control

The mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft.

When sealing a centrifugal pump, the challenge is to allow a rotating shaft to enter the ‘wet’ area of the pump, without allowing large volumes of pressurized fluid to escape.

To address this challenge there needs to be a seal between the shaft and the pump housing that can contain the pressure of the process being pumped and withstand the friction caused by the shaft rotating.

Here we compare two different way

Traditional method

Gland packing is still commonly used in many applications, however increasingly users are adopting mechanical seals for the following reasons:;

  • The friction of the shaft rotating wears away at the packing over time, which leads to increased leakage until the packing is adjusted or re-packed.
  • The friction of the shaft also means that packing also needs to be flushed with large volumes of water in order to keep it cool.
  • Packing needs to press against the shaft in order to reduce leakage – this means that the pump needs more drive power to turn the shaft, wasting energy.
  • Because packing needs to contact the shaft it will eventually wear a groove into it, which can be costly to repair or replace.

Why choose mechanical sealing

  • No “visible” leak – seals do leak vapour as the fluid film on the faces reaches the atmospheric side of the seal faces.
    • This would approximate to 1/2 teaspoon a day at normal operating pressures and temperatures, if it were captured and condensed.
  • Modern cartridge seal designs do not damage the pump shaft or sleeve.
  • Day to day maintenance is reduced as seals have inboard springs which make them self-adjusting as the faces wear.
  • Seals have lightly loaded faces which consume less power than gland packing.
  • Bearing contamination is reduced in normal operation as the lubricant does not become affected by seal leakage and wash out.
  • Plant equipment also suffers less from corrosion if the product is contained in the pump.
  • Vacuum can also be sealed with this technology, a problem for packing as air was drawn into the pump.
  • Less wasted product will save money, even water is an expensive commodity and less clean up of the area will be needed.

To give client’s suitable product,GN solids control will always develop the design and improve service

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Oct 06

GN will join ADIPEC 13-16 November 2017 (the Abu Dhabi International Petroleum Exhibition and Conference)

Booth Number:10250

We can meet at Abu Dhabi and disscuss how to make solids control more efficiency and provide better service

Our new product plan and supply advice will discuss with you at ADIPEC

Recently, GN received many good comment on theshaker screen performance on site. also, it means the the developing on screen fabrication technology.
For now, GN’s shaker screen facility is able to fabricate the replacement screen for almost all the famous brand in the industry. freshed developing composite frame screen can proved onsite for working time 300~700 hours according to working condition with various mud composition, temperature etc.
To keep reliable quality, GN also designed strong package box for the screen. From screen to packing, both give a magnificent and classy impression. The package is provide with or without GN Logo for clients’ resale purpose.

ADIPEC is one of the world’s most influential events for the oil and gas industry. As a premium exhibition and conference platform, ADIPEC hosts hundreds of speakers, thousands of exhibiting companies and tens of thousands of trade professionals from around the world.

The Abu Dhabi International Petroleum Exhibition and Conference (ADIPEC) 2017 will be the premier meeting place for energy ministers and C-level executives from the world’s oil and gas giants that will convene under the theme: “Forging Ties, Driving Growth.” It is expected that there will be more than 200+ sessions across the Technical and Non-technical conferences.

ADIPEC’s inaugural 2016 Security In Energy Conference brought together for the very first time, cyber and critical infrastructure security experts and oil and gas executives to discuss the real life security threats and challenges facing the oil and gas industry.

Offshore & Marine at the Abu Dhabi International Petroleum Exhibition and Conference (ADIPEC) has rapidly become a must-visit zone. The next – third – edition of the co-located annual ADIPEC event builds on the success of previous editions, attracting more exhibitors, more visitors and a larger conference stream.

The four-day event includes a waterfront vessel display area, over 8,000 sqm of exhibition space housing more than 150 exhibiting companies with access to 15,000+ professionals from around the world, plus a dedicated Conference theatre for a mixture of strategic and technical sessions.

Hope GN solids control and every visiter have a good time at ADIPEC2017

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Sep 24

Solids control system will meet different cutting point when running

Shale shaker use for size>70 micron solid particle as the important part of total system

As the first step,GN shale shaker use linear motion,can remove the big size cuttings,and keep high effectiveness,work for second step of whole system,solid&liquid separate result will effect rest solids control step

The applicable range of drilling fluid vibrating screen:

Ground / offshore oil / gas drilling / CBM excavation / Trenchless Directional Crossing / piling / waste water / mud treatment etc., primary and two or three stage solids handling of mud and liquid to be treated. mostly, it is the primary treatment of mud and solid liquid mixtures applicable to various environments.

 

Function

The performance can be expected and operation direct to watch . Shale shakers provide the advantage of not,easy manage and maintain,shale shakers can produce a sure dry cuttings discharge.equipment’s main job is remove as much solids as possible and reduce the solids loading to the next level, the shale shaker is the primary solids removal device. It is usually relied upon to remove all drilled cuttings coarser than the weighting material. Downstream equipment will often remove too much valuable weighting

Numbers shaker should be installed to process the whole circulating with the target of removing as much drilled cuttings as economically feasible. because as the important part of the system, need arrange enough quantity shale shaker and put at suitable place to achieve optimum economic performance of the solids control system.

The working principle

mainly by the screen frame, screen exciter, damping element composed of drilling fluid shaker, by the mechanical vibration is bigger than the mesh of solid and solid adsorption by mesh sieve out some less than. The drilling fluid returned from the well head flows from the feed tank to the surface of the vibrating screen. The solid phase is discharged from the tail of the screen and contains a liquid phase smaller than the solid phase of the mesh. The sieve flows into the drilling fluid system to complete the separation.

Safety operation of shale shaker for drilling fluid:

It must be determined that the transport locking device is removed prior to use. The equipment can not be repaired, moved or even removed by the use of the vibrating screen. The equipment shall be operated and maintained according to the safety instructions and warning signs given on the equipment.

Maintenance of mud drilling fluid vibrating screen:

According to the vibration motor safety warning, the motor rules, reasonable maintenance, such as filling lubricating oil, etc.;

In the process of use, the screen should be carefully observed, inspection and so on. The damaged screen mesh and the completely damaged screen shall be repaired or replaced in time;

Make necessary cleaning of vibrating screen and screen so that the screen can have a longer life, after each end.

In order to make the use of vibration screen to achieve the best, regularly and systematically monitor the overall situation of the vibration sieve and maintenance.

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Jun 18

With local strong partner, GN Solids open the Russia market, and get a rapid growth in sales amount. The most popular solids control equipment for Russia including: shale shaker, mud cleaner, centrifuge, shaker screen, pumps.

1) 10 sets shale shaker to Russia

Just this month, GN Solids finish the production of 10sets shale shaker. The shale shaker model is 4 panel linear motion shaker, equivalent to Swaco Mongoose shaker. GN Solids shaker also have some other features as following:

  • Shaker bottom made from stainless steel with longer lifetime, and anti-corrosive, much better than carbon steel
  • Pretensioned flat screen with wedge installation, changing screen will be easier and faster.
  • Composite material shaker screen, longer life and good separation performance
  • With Italy OLI brand vibration motor or US martin brand vibration motor, for reliable vibrator performance.

The 10sets shale shaker will be used for 3sets oil drilling rigs, with 1500gpm mud treating capacity. One set shaker will be in stock as backup. When any emergency occurs, the stock shaker can replace the problem shaker.

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Jun 08

Submersible slurry pump also called pit pump, usually installed in pit or mud tank vertically to transfer the mud from the pit/mud tank to shale shaker or other solids control equipment. Compared with centrifugal pump, the pit pump impeller is more anti-wearable. Even when there are some big particles in the mud, the pit pump can still work well with longer lifetime.

Recently, we got big order from overseas client requiring 10sets submersible slurry pumps. The client had good experience with GN slurry pump about two years before, and he trust GN slurry pump working performance. After the client get the contract, he came to GN Solids factory to check our new factory, new production facilities, new office building and new warehouse. The client was amazing with the fast development of GN Solids in past two years. Orderly management, hard work and good product bring GN the prosperity.  The client signed purchase order with GN Solids before he went back to his country. Except for the slurry pump, the client also bought some sets of centrifugal pumps, shear pump and screw pump etc.

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Jun 04

About 5 years ago, one old client from India bought 2sets complete mud tank system for their oil drilling rigs. During the past years, we continuously support the client with timely after sales service, and offer requested spare parts in shortest time. The client knows GN many years, and IS satisfy with the past experience with GN. Recently, the client get new project and want to renew the mud tank system. New order of several sets shale shaker & mud cleaner issued to GN, including some centrifugal pump, shear pump, mud hopper, mud agitators etc.

cof

Main features of GN shale shaker

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May 25

Mud treatment is required in many different industries.  For GN Solids, the most popular mud treatment is oil drilling mud treatment, or HDD mud treatment.  In recent years, we have more and more project from other industry mud treatment, like piling mud, TBM mud treatment, or construction mud treatment. One batch of mud separation equipment for US client, ready for delivery. The client will use the equipment to treat the construction mud.

1) High G drying shaker with catch tank

The mud will be collected by one big hopper with wide opening, and then transfer to high G drying shaker, to separate the big solids particles.

GN high G drying shaker is equipped with 4 panel composite material shaker screen or coarse steel screen per client’s request. The longer shaker deck can give better separation, and make the solids discharge as dry as possible. The super G force also very important to the dryness of discharge solids.

The high G drying shaker is seated on the catch tank with submersible slurry pump. The slurry pump can suck the mud and feeding to next unit for further treatment.

2017.05.25 Construction mud treatment

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May 20

Most of client will choose skid mounted mud system, to put the mud system on the truck for transportation from site to site. Some client will prefer to trailer mounted mud system with single axle or double axles. The trailer mounted mud system allow client to move it by truck head, to hook the mud system and pull it from site to site, which will be much convenient from the close project. Recently, we have one client from North Africa. The client need mud system for water well drilling and we already discuss the inquiry for about one year, finally the client give us order for one set 500gpm trailer mounted mud system. We source the trailer from trailer company, and weld the tank upside by ourselves, and then match the proper model shale shaker, mud cleaner, pumps, hopper etc. to complete the mud system.

2017.05.05-trailer-mounted-mud-recycling-system-hdd-1

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Apr 17

Oily sludge is difficult to reuse because it is mixture of waste solids, oil and water. If not treatment, Oily sludge is hazardous to environment, may contaminate the soil, water and air. The oily sludge can be from refinery, drilling waste or tank cleaning etc. From technology, if the oily sludge can be separated to oil, water and solids, the separated oil can be reused or resell, the separated water can be used for green or project.  After well separation, the oily sludge can be effectively become useful material.

oily sludge treatment

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Apr 11

We got the purchase order of GNMS-1000D desanding plant with PU screen, and other spare parts in last month. After about half month manufacturing, all materials are ready for delivery.

desanding plant

How will the client use the desanding plant ?

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