Verti G Cuttings Dryer’s simple Maintenance

Verti G cuttings dryer is specifically utilized in drilling liquids solids control system to recuperate the waste cuttings out of the primary shale shaker and mud cleaner. At the moment, the organization CSI is the world recognized most well-known manufacturer for that Verti G cuttings dryer unit. Regardless of on production and quality series, CSI is the No. 1.

GN Solids Control continues to be devoted to create and produce the Verti G cuttings dryer previously 3 years, and today GN second generation cuttings dryer happen to be examined effectively and already applied on-site. GN’s verti G dryer is workable for the water drilling mud and oil based mud making GN Solids Control occupy the very first seed in China solids control market. To guarantee the smooth performance from the verti G dryer, GN outfitted around the unit with flushing and coming system.

GN Verti G dryer flushing system

The verti G cuttings dryer of the flushing system is composed of the screw pump and relative hoses. Normally the material stepping into the Cuttings dryer could be dry and high viscosity. Using the rotating from the dryer bowl, the fine solids and liquid could be dispersed onto the interior encircled wall from the bowl and stick onto it. To wash within the cuttings dryer, the screw pump would feed water that is clean in to the bowl. Underneath the ruthless from the flushing water, the fine solids and dirty liquid could be flushed lower in the wall and obtain out of the dryer vessel.

GN Verti G Air Knife System

Certainly one of GN first generation Verti G cuttings dryer defects would be that the released solids from dryer unit isn't dry enough for simple transportation. The environment knife design could solve the issue from the block around the rotating screen opening. GN’s vertical cuttings dryer has 3 types screen for selection, the outlet is 250 microns, 350 microns and 500 microns. Under ruthless from the coming air, the blocked opening from the screen would open and also the solids could be blow to much dryer. This greatly improves the significant efficiency and helps make the transportation from the released solid super easy.

Aside from the verti G dryer, there'd be another essential equipment known as decanter centrifuge made by GN which may take away the much fine solid contaminants within the drilling mud.

Mud Recycling System used for HDD Rigs

Generally, trenched is going to be excavated for pipe lounging or conduits and cables setting up. While, in certain situation that trenching isn't simple for geographic factors or environment reasons, directional boring, usually referred to as horizontal directional drilling(reduced as HDD) is going to be applied. HDD is really a typical illustration of trenchless technology meaning utilizing a surface-released drilling rig to bore a way for setting up infrastructure for example pipelines, gas lines, oil line, sewer lines, water lines, energy cable conduits, and telecommunication. HDD is generally applied whenever a river, road, landscape, or perhaps a stuffed up place must mix for pipe and cable lounging. So far, installation length by HDD continues to be as much as 2000 meters, and diameters as much as 1200 mm happen to be finished in a nutshell length. Yet, that doesn't always imply that HDD could be adopted for those road-mix or river -mix drilling. Really, solids rock or sedimentary rock is easily the most appropriate material. HDD can be used rather than other techniques mainly for the additional benefits. HDD not just makes traffic disruption less and much deeper or longer installation possible, but guarantees a lesser cost and eco safer.

GN Solid Control is focused on design and make up mud recycling system for HDD rigs, as well as for a decade’s finding and changing , GN’s mud product is broadly utilized in Australia, India, along with other nations for HDD rigs.  The below features are evidence of GN’s mud recycling systems recognition. First of all, GN provides compact design with a mix of mud cleaner and underflow shaker, that is double deck for that first stage separation and drilling mud’s drying out.

Next, GN offers a full-range of mud system: 150/ 350/ 800/1000/1500GPM.

Related article:

https://mengda0312.wordpress.com/2014/12/12/drilling-waste-management/

Standard Drilling Mud Solids Control System for Oil & Gas Rig

Solids Control system is one of the 8 systems for oil and gas drilling rig. And it could be regarded as a complete closed loop system, which is used for receiving the drilling mud from the well and separating out as much as drilling cuttings, then transfer the drilling mud back into the drilling system.

In a complete drilling mud solids control system, or sometimes we call it drilling mud recycling or cleaning system, there are 4 steps of solids control and 5 steps cleaning. What do they mean?

What is 4 steps solids control?

Solids control, words speak out the meaning, to control the solids phase in the drilling mud to the minimum. There are 4 steps of solids control equipments,:

1.      Linear motional Shale Shaker, by the vibration of the shaker deck, the solids particles larger than 100 microns are separated out. Shale shaker is the most efficient equipment. Drilling mud from the well falls directly to the shakers buffer box. So shale shaker needs no feeding pumps.

2.      Desander cones, composed of several 10 inch hydrocyclones made of polyurethane material , are used for separating out the solids particles larger than 40  microns. Qty of 10 inch hydrocyclones depends on the treating capacity.

3.      Desilter cones, composed of several 4 inch hydrocyclones made of polyurethane material, used for separation of solids particles larger than 25 microns. Same as desander, this QTY also differs per capacity.

Remarks: in more and more cases, mud cleaner plays the role of both desander and desilter. It combined the desander, desilter together, with a underflow shaker.  And desander and desilter need respectively centrifugal pumps for feeding.

4 .  Decanter centrifuges. In a oil and gas system smaller than 1000HP rig, there is a middle speed decanter centrifuge, and for larger rigs, there are always one set of middle speed centrifuge and one set of high speed centrifuge. GNLW452 and GNLW363 are ideal choices here.

What is 5 steps cleaning?

5 Steps of cleaning for the drilling mud include above mentioned 4 items for separation of solids particles from the liquid, there is 1 more treatment to release the bubbles from the liquid, by Vacuum degasser.  Vacuum degasser is always located after the shale shaker and before others, so it also helps to protect the centrifugal pumps.

GN Solids Control has a long time experience design and provide such systems to worldwide large drilling companies. May you have interest, welcome to visit GN’s website or visit GN company.

Related Articles:Mud Cooler Supplier List

Diamond shale shaker screen advantage

Shale shaker screen is the essential  part in filter solids from liquid, and it is disposable part in various drilling that need to replace all the time.

Because of the drilling fluid that contain corrosion, abrasiveness and heat.  and needed to filter solid particles for long period time.  Generally speaking, the material of shaker screens are all constructed in stainless steel and the wire which disposed by heat treatment technology. The auxiliary support structure are made of steel plate, galvanized sheet, and others combined materials.

With the continuous development of science and technology, in order to enhancing the filter effect of screen, the diamond shape screen was developed. It is improved and upgraded from flat type screen, started to be implied in the mid 1990 s.

Diamond shape screen synthesize the advantage of common crochet screen and orifice plate adhesion screen, but it is based on the structure size of shale shaker will not be changed, and the frequency and exciting force of vibration exciter will not be changed as well.

The advantage of the diamond shape shale shaker screen for solids control is that it breaks the limitation of traditional plate screen, because of the unique wave pattern of screen, it is not only has the service life increase and as well as filter effect of orifice plate adhesion screen by increase the filter area of screen more.

When the drilling fluid flow to the screen surface, the solid phase will flow to valley bottom of corrugation, vertical surface can provide more filter area for drilling fluid, so compared with flat surface screen, the wave screen has  through capacity. The thruput is larger 30%~40% than orifice plate adhesion screen and other flat surface screens. And diamond screen increases the residence time of drilling fluid on the screen surface, has a better sieving effect.
If you want to know more information please visit our website: http://www.gnsolidscontrol.com

Cuttings Discharge Pump (cdp)

The CDP is a safe and efficient vacuum system designed to collect drill solids on a continuous basis and discharge them into drilling waste containers on the rig.  The system is fully contained reducing exposure to drilling wastes management.

Air moves through the system at high velocity from the cuttings pick up point, via the cuttings discharge pump to the air flow source, the primary air mover.  The drill cuttings are picked up in the air stream, conveyed and subsequently deposited into one of multiple drilling waste containers. In the standard configuration, as many as eighteen drilling waste containers can be deployed at one time, providing a containment volume in excess of 110m3.  The CDP provides and air lock between the dropout hopper and the discharge chute enabling the continuous vacuum collection of drilling waste into drilling waste containers.

Features and Benefits Of CDP

1/ Rotary type cuttings discharge pump – provides an air lock between the drop-out and recover tank and discharge chutes, enabling the continuous collection and discharge of drill cuttings

2/ Discharge chute – remotely operated with up / down and 270° rotational actuator

3/ Drop-our recover y tank – provides 2m3 containment volume

4/ Remotely operated telescopic arm – enables the positioning of the discharge chute to cover up to eighteen drilling waste containers

5/ Solids Control platform – the remotely operated cuttings transfer system is operated from a single elevated location providing a panoramic view over the containment operations

6/ Continuous vacuum collection and discharge of drill cuttings

7/ High containment capacity due to the telescopic arm supplying cuttings to a maximum of eighteen drilling waste containers

8/ Low resource requirement due to the arm being operated by one person only

9/ Exposure to drill cuttings reduced due to remote operation

10/ Reduction in manual handling of suction hoses and / or dump chute due to the remote operation of the telescopic arm and discharge chute

Read More: Centrifuge Maintenance

How to Calculate Mud Tank for Solids Control System

As is known, solids control system or mud system is always used for oil and gas drilling, HDD, tunneling and so on. GN Solids Control is specialized in manufacturing and supplying solids control equipment and system. I think, the four stage equipment for a complete solids control system has covered the internet, as simply listed as shaker screen, desander, desilter or mud cleaner(the combination of desander and desilter), and decanter centrifuge. Besides, we certainly need collecting containers for the processed mud, that is mud tank. For a required treating capacity, how to calculate a satisfy mud tank? It is easy to calculate a mud tank with small volume, since there may be no restriction for transportation and shipping. But how about a larger volume, even huge volume?

As a top manufacture of solids control equipment, Hebei GN Solids Control Co., Ltd also manufactures matched mud tank for a system. As to large treating capacity designed for a complete solids control system, when choose the mud tank, you should consider several things which is very important.

The first one is inland transport restriction in user’s country. You should keep in mind it when calculating, and meanwhile you should learn whether the user will dismantle equipment while transportation or not( for the solids control equipment is usually installed on the mud tank). The second thing you should learn the shipping restrictions. Generally, there are three kinds width for your choice, the smallest one is for inside container shipment, which is more cheaper and convenient; the medium is container shipment, the largest one is bulk cargo shipment, which is more expensive and harder to find ship. The third thing you should consider is sand pumps attached on the mud tank, which will increase the length. GN solids control always considers completely to design the most suitable mud tank.

Mud Cleaners Introduction in Solids Control: http://gn-nodig.com/post/101404811365/mud-cleaners-introduction-in-solids-control