Pitless drilling mud system/ drilling cuttings treatment system is one of the main products for GN solids control, also called no-pit drilling waste management system. It has been a new trend for the oil & gas drilling in the countries which issued new regulations of environmental protection, especially for earth recovery after drilling.

GN has provided various solutions for our clients in domestic and international clients for their different requirement, with the best result and reasonable price. Traditional oil drilling will keep the drilling waste discharged from solids control system in a big pond/ pit near the rig. In some drilling sites, there are drilling waste management system to reduce the drilling waste and ship the dry waste by truck, and recycle the useful fluids to prepare for new drilling fluids. In some other sites, there are not drilling cuttings treatment system, they only remain them there, when it is full, they will use a waste truck to ship them to a facility for treating. During the transferring, the fluids waste will spray out and damage the earth nearby. The new trend is to reduce the pit or no pit at the drilling site. The idea is to improve the solids control system efficiency and connect it with drilling waste management system. The dry waste will be collected by screw conveyor continuously and finally transferred to cuttings box. When the cuttings box is full, it will be transferred by the truck as landfill or construction industry. There is no drilling waste hazardous leaved on the ground during the drilling process.

Our designed pitless mud system including water based mud treatment and oil based cuttings zero discharge. Pls send us your project details, our sales engineer will give you proper solution. We can both sell you new zero-discharge system and also updated your existing solids control system with adding a drilling cuttings treatment system.

GN main business field is for oil & gas drilling. GN can offer whole line of solids control equipment, but GN can also offer economic separation plant for construction machine. Recently, GN shipped several units of desander separation plant for construction machine. The desander machine can be used for bored pile foundation or TBM as well as the horizontal directional drilling projects.

Working principle of desander separation plant.

1) we match a same flow rate slurry pump. Transferring dirty mud from mud pit to separation plant down deck shaker screen.

2) Generally, we recommend 20mesh screen / 40mesh screen to separate the coarse solids from the dirty mud

3) The fluids will go down to the catch tank.  After that, we design centrifugal pump to transferring the mud to desander cones and separate the above 50microns solids particles.

However, GN main field is oil & gas drilling, as well as HDD drilling. Working principle of GN solids control equipment

1) Shale shaker, the first phase of mud recycling system, removes the particles above 100microns.

2) desander, the second phase of mud recycling system, remove the particles about 40-70microns.

3) desilter, the third phase of mud recycling system, remove the particles about 25-40 microns.

4) vacuum degasser, remove the gas-cut drilling mud.

5) decanter centrifuge, the fourth phase of mud recycling system, remove the particles about 2-5 microns.

6) mud agitator, mud gun, mud mixing unit, mud tanks, centrifugal pumps, are also necessary equipment for mud recycling system.

Except for above equipment, GN can also offer drilling waste management equipment, like waste management vertical cuttings dryer, waste management decanter centrifuge, High G drying shaker,  solidification unit, thermal desorption unit etc. GN can offer turnkey solution for the solids control system & drilling waste management system.

Drilling cuttings box is designed to transport drilling cuttings , solids out of desander , solids out of desilter and solids out of decanter centrifuge or pit cleaning waste during drilling operation . The drilling cuttings box transport by fork lift and set container loading point normally .The drilling cuttings box will be fully enclosed with a lifting frame and a large sealing door designed for filling and emptying , the cuttings box can be provided with certified lifting slings and discharge door has an internal seal for secure when transport .

A typical drilling cuttings box has an internal volume of 2.3 cubic meters and the size can be changeableinfact . The gross weight of 8000 KG is allowed the drilling cuttings box to be filled with an maximum of about 6600 KG of drilling cuttings or other drilling waste . There are fork lift working point for easy moving for fork lift .

The drilling cuttings from shale shaker will be depending on drilling conditions , normally the drilling size larger than 100 microns cause screen minimum normally 150 mesh size and drilling solids from desander will be larger than 50 microns , desilter solids will be larger than 20 microns . Different machine will produce different size drilling solids , decanter centrifuge will separate solids 2 to 7 microns , if client using middle speed centrifuge , solids above 7 microns but the solids will be finer if they use a high speed decanter centrifuge .

GN Solids mainly supply solids control equipment which can separate drilling solids or drilling cuttings from drilling mud , drilling waste management system which is the try drilling cuttings or recycling drilling fluids from solids particals . But we supply drilling cutting box also to assist with GN Solids equipment and service for all client .

In the past year, the crude oil price has broken many people’s hearts and it seems far from being recovered in the near future. Some people say that this situation will last 2 or 3 years, as is the positive expect. While per the negative respect, this bad situation would continue for at least 5 years.

The usage of crude oil couldn’t be ceased because the modern economy and citizens’ lives are dependent on the crude oil, the oil companies have to find ways to limit the budget. Such influence has to be laid onto the oil service companies. As the oil companies and oil service companies are inter-dependent on each other, there’s no doubt, in order to retain the certain share of the oil service company, the oil service companies have to share some burden of loads for the oil companies for a long term

The oil service giants who occupy one quarter of the oil serving markets of the world took following methods to make sure their market share and benefit:

1. some of them are buying in other similar companies, Halliburton merged Baker Hudges, and etc.

2. they lowered down the service price to cover some price lost from oil for the oil companies.

3. they are providing new types of services to get more benefits.

It is not easy work to provide the same service at a lower price, that’s why to find a more cost-effective way is very important. GN Solids Control, as TOP solids control manufacturer in China, has been the equipment supplier of the oil service companies for many years. In this year, GN has proved its equipments as always, and also designed out some new application of equipment for the service companies, which could play an more efficient application while at a lower price. Recently, we finish one set mud mixing system for South America Client. They use this mixing system to perfect liquid mud plant. The client is GN VIP client with over 3 year’s relationship; they have used our shale shaker,decanter centrifuge, mud agitator, centrifugal pump before. Mainly equipment of this order including:

GN Solids America is the first USA based China solids control company. GN’s products are equal in quality and performance as its US and European peers. It is sure to better serve the end users.

Nigeria is a beautiful country, though for the first instance, some bad things come to us before thinking about the view, market or anything else. When my colleage is really doing business with Nigerian people, we found some nice person, and always good to cooperate with them, then my colleague said, Im now half Nigerian.

GN Solids Control have done a lot of business with Nigeria companies, mud company, drilling contractor, servsing companies, and so on. This time, we sent 3 sets of drilling waste management system to Nigeria, and now my colleague is there for commissining. Then we get some testing video, pictures, with good result. This Nigeria client is one of the big drilling contractor in Nigeria, the order is the third order for this client, before this order, client has ever bought shaker screens and 4 decanter centrifuges and one liquid mud plant from GN Solids Control. Right now, GN Solids Control is building another 2 vertical cuttings dryer and a number of screw pump and screw conveyors for the client.

It is modular waste mangement equipment, with certain modification on site, which comes to you in this way, the client lift the centrifuge in a much higher place. The client have 6 rigs, now they are equiping half of their rigs with drilling waste management system.

The list of the waste management equipment include:

3 sets vertical cuttings dryer

6 sets high speed VFD decanter centrifuges

9 screw pumps, with 6 for feeding decanter centrifuges, ther other 3 for flushing the cuttings dryer.

15 screw conveyors for transfer drilling waste to feed the equipment and discharge the solids.

To make sure everything goes perfectlly well on site, we supplly the client layout drawings, and 3D drawings to show all the needed details as instructions. This sweat action do not only save the commissioning hassels, also make everything, communications easier. GN solids control also provide other solids control equipment and waste management equipment ,including Mud Agitator, shale shaker, desander ,desilter,mud cleaner,wacuum degasser etc.

GN Solids Control is the first API certified solids control and waste management manufacturer in China, its products serve not only for the oil and gas industries, but also for other drilling projects like HDD, TBM, CBM and Bored Piling works.

Years ago, for such drilling works like HDD, TBM, CBM and Piling, there are not so many strict restrictions for the environment protection, sometimes a single shale shaker is enough. But now, more and more rules for protecting the environment are established and the running cost of the project is more and more considered. That’s why many end users are buying desanding plant for their projects.

For such desanding plant and similar mud recycling systems or units, GN provide 2 optional configurations for the clients to choose per their jobsite condition and country’s rules:

1. economic solution: desanding plants with a compact mud unit with 2 steps separating equipments, the shale shaker and the hydrocyclones, the desander cones or desilter cones. In order to get a compact design, GN designed the desanding unit as one equipment on one tank, it is a double shaker desander, like GNZJ-705E-D2S. The lower layer of shaker uses coarse screens, for the first step separation, the liquid falls into the tank and pumped to the upper located hydrocyclones for second step separation.

2. higher standard solution, also called self contained mud recycling system. They have 3 steps of separation, including shale shaker, desander cones with underflow drying shaker, and desilter cones with underflow drying shaker, besides the separation equipments, this kind of mud systems also have a mud mixing unit including mud mixing hopper and centrifugal pump for mixing.

For both above mentioned 2 kinds of desanding plants, or mud recycling unit, GN has 3 main optional capacities for clients to choose from. In fact, those 3 capacities are most popular ones among all the requests in this industry. There are 200GPM, 500GPM and 1000GPM mud systems.

To obey the strictenvironment rules, drilling waste in the gas and oil drilling isn’t permitted to release or landfill directly since it will serious pollute the land. So equipment for treating the drilling cutting waste before disposal is becoming a lot more important and vertical cutting dryer it’s typically the most popular and efficient machine to dry the cuttings to achieve the conventional for discharge. Easily the dryer could be in comparison to some laundry-drier. There’s a covered vertical rotating set up and you will see the flightsassembly and a stainless-steel basket screen having a void space backward and forward. The 3 are primary working areas of vertical cutting dryer. Once the rotating set up rotates inside a high accelerate to 900rpm, a powerful centrifuge pressure happens towards the “wet” cuttings trapped through the screen within the void space between it and also the bell cover. And also the fluids are going to be forced out with the mesh and flows out across the fluids discharge channels. As the solids bigger compared to mesh size is going to be blocked, and removed through the tilted plane tickets which rotates reduced compared to rotating set up. That’s the way the cuttings are dried.

drilling waste management system

Coupled with GN decanter centrifuge, an entire group of drilling waste management system is promoting and produced in GN factory. This technique includes:

One vertical cutting dryer-fixed speed or VFD driven

One decanter centrifuge-fixed speed or VFD driven

Two screw pump-one for eliminating vertical cutting dryer, one for feeding the decanter centrifuge

A cone collecting tank for fluids released from vertical cutting dryer

A skid to set up all of the equipment

Some electrical control system

Two telescopic skid with pathways and hand railing -one for that dryer, one for that centrifuge.

The benefits of this group of drilling waste management product is the fluids in the decanter centrifuge can flow in to the active or storage tank by gravity, but must lower the centrifuge and dryer when moved by truck, and there’s no space for storage for liquid in the centrifuge.

Generally speaking, oil, water or synthetic liquids are used as the base liquid to composed drilling fluids with drill solids added which are the main parts of drilling fluids.  Therefore, as the significant and indispensible part of a complete drilling activity, how to control the drill solids largely decides the drilling cost, drilling efficiency and drilling results.  If the drill solids are well controlled in accordance with the requirements made out before drilling on the base of surveys and analysis, there will be many a benefits to the drilling capacity which are listed as below.

Good solids control will increase penetration rate and pump efficiency, reduce water volume, mixing problems, differential sticking, hole drag and torque , thus reducing the cost to prepare mud, maintain pump, dispose waste, also being helpful to environmental protection. While bad solids control could lead to stuck pipe, drilling rate reducing, poor cement jobs bit life reducing and increase chemical consumption, formation damage, equipment wear and tear.

Normally there are three ways to control drill solids dilution, mechanical removal and gravity setting. Regarding to the dilution solution, oil or waster is used to diluter the oil mud or waste mud continuously or periodically. Gravity setting means to built a shallow earthen pit to allow the solids setting out and circulation. As its name implies, mechanical removal is to control drill solids with mechanical equipment, that being the main focus of Hebei GN Solids Control Co., Ltd who is the top manufacturer of solids control equipment to control drill solids. Hebei GN Solids Control has always been leading the technology in China, and has been proud to occupy the largest portion among all China’s supplier of solids control equipment in international marker and has already exported to over 60 cuntries.

Recently we have received one project from an offshore drilling service clients, they have over 20 years drilling experience in offshore drilling solids control service. As the squeezed size on the offshore drilling platform, the customer require compact mud tanks , compact mud equipment to do the job. Generally solids control equipment in size and weight will no problem for helicopter, but the mud tanks should be smaller in size and also in weight. After we many times meeting on technical issues and certificates before delivery, the customer buy items below:

1) 2 sets helicopter shale shaker, GNZS594E-HB, GN Solids control shale shaker is with good performance and well support from us. This is 4 panel shale shaker with Composite material shaker screen.

2) 1 set helicopter mud cleaner GNZJ594E-2S12N, the treating capacity can reach to 1000gpm mud system. The mud cleaner with 2 pcs desander cones and 12pcs desilter cones, spare parts can also be replaced easily.

3) 2 sets helicopter decanter centrifuge. The centrifuges are also fixed speed centrifuge with smaller carbinet control panel. Variable speed centrifuge require a relatively large VFD control panel separated from centrifuge. However, the space in offshore is not allow. But one disadvantages for fixed speed control is that the speed change will be much harder, it may take about 3 hours to change the belt pulley to get different speed and it is not continuously change.

4) 8 sets helicopter mud tanks. The mud tanks is used vertically, not like conventional horizontally used mud tanks. All the helicopter equipment must be certified with third party certificate on lifting points and other related issues.

GN Solids Control is China No. one and China leading manufacturer for helicopter solids control equipment and helicopter drilling waste management equipment. If you need any support, pls contact us freely. With reliable quality equipment, reliable sales price, and guaranteed after sales service, GN Solids Control will not let you down.

The treatment of solidification/stabilization “s/s” is the treatment of dangerous wastes for disposal, reuse and/or site storage of land on contaminated.  It is the technology that gain popularity because the regulation and profit potential.  It often can be redeveloped after the treatment of waste can use on location of soil improvement for subsequent construction. 

Solidification/stabilization (S/S) is a widely used treatment for the management/disposal of a broad range of contaminated materials and wastes; especially in those which is contaminated with substances classified as dangerous in the US.  The process treatment involves mixing a binding material into the contaminated material and/ or waste.  Such action objective of treatment is to protect men’s health and the living environment by immobilizing contaminated materials within the treated and controlled material.  Immobilization within the treated and controlled material which will prevent  migration of the contaminants to men as known, animals and plants.  This type of  treatment has been known to use treat radioactive wastes, since the 50s and hazardous waste since the 70’s. Fast forward to current time, the S/S continues as a cornerstone treatment technology for the management of radioactive waste, hazardous waste, and site preparation.

Government agency such as U.S. Environmental Protection Agency (EPA) identify S/S as a technology of established waste treatment.  S/S is a main treatment technology for the waste management of industrial dangerous wastes. These wastes are regulated in the United States under the act of Resource Conservation and Recovery Act (RCRA). RCRA hazardous wastes are grouped into two classes: RCRA-listed and RCRA-characteristic. RCRA-listed hazardous wastes are wastes produced by industry that are generally known by the EPA to be hazardous. These wastes are “listed” in RCRA regulations and must be treated, stored, and disposed according to RCRA hazardous waste management regulations. RCRA-listed wastes destined for land disposal are required to be treated in order to reduce danger posed by the wastes after land disposal. RCRA-characteristic wastes are less routinely produced wastes that are found to be hazardous due to a characteristic of the waste. For RCRA-characteristic wastes, S/S can often be used to eliminate the danger characteristic. With the danger characteristic addressed the treated waste can be disposed at a lower cost or re-used.

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