Water based drilling cuttings treatment

GN designed vertical G dryer waste management system can be used as both water and oil based drilling cuttings, and also the area test outcome is demonstrated effective. The conventional vertical G dryer drilling waste management system including: verti-G dryer GNCD930D-VFD, decanter centrifuge GNLW363CG-VFD, Nemo pump GNG30-075 for feeding the centrifuge, Nemo pump GNG10A-040 for flushing the VFD decanter centrifuge and vertical cuttings dryer, oilfield 3-runner design skid, V type liquids collection tank and some spare parts. This kind tank is for easy tank bottom cleaning and preventing accumulation of solids to the tank bottom.

We've specifically designed drilling waste management system for water drilling cuttings, the advantage to try to get this technique is:

1 Use Hi-G dryer to rather than Vertical G dryer, decreasing cost and less the facility consumption

2 decreasing the eliminating pump for that vertical G dryer

3 G-force of Hi-G dryer can achieve 8.0G max, with 4-panel shaker screen and a pair of 0.73m2 large screen position for better separation. After treated by hi-G dryer, the liquid is feeding to decanter centrifuge directly.

But in comparison with Hi-G dryer, verti-G dryer treated the cuttings much drier, the solids can be taken off directly by truck, however the solids separated by Hi-G dryer still remain around 40% humidity.

In water based drilling mud treatment system, the centrifuge is generally placed on the greatest telescopic frame for much better solids discharge. However the shale shaker might be using it the low stand.

But when for oil based drilling cuttings, Vertical G dryer management system is the greatest option, we've utilized it in lots of rig sites to check its performance, its demonstrated good based on our client’s feedback.

To check on GN vertical cuttings dryer performance within the rig site, please look into the video from GN website in the video page.

Related Arciels:

• GN Solids America’s oilfield drilling fluid mud agitator
• 5 Sets of Vertical Cuttings Dryer Went to Jobsite in Africa with CNPC
• Chemical Enhanced Centrifugation Introduction
• GN Mud System For HDD Drilling
• Hi-G Dryer shale shaker for sale to Middle East

European Customer visited GN factory to check the Solids Control System before Delivery

GN solids control is experienced in solids control system for gas and oil drilling. Every year, GN designs and manufactures many solids control system, for example 4 set solids control system for COSL, and one set for a European customer. Lately, the European customer visited GN factory to check the solids control system for gas and oil drilling. This product is almost finished, and prepared for delivery.

Within this solids control system, you will find 7 tanks including one small trip tank and small pill tank, and five large tanks: the first is shale shaker tank in which the first stage and 2nd&3rd stage mud dealing equipment are mounted and then it's active tank in which the 4th stage mud dealing devices are installed. And then it's shear tank where mixing hoppers with shear pump are mounted, and then it's mixing tank where two mixing hopper and 2 centrifugal pumps are mounted, the 2 pump connected in parallel. Regarding towards the mud dealing equipment, the very first stage is shale shaker which separates large solids out, normally over 100 microns the 2nd & 3rd stage devices are mud cleaner with desander cyclones to get rid of contaminants over 40 microns out, and desilter cyclones to get rid of contaminants over 20 microns out. Then towards the 4th mud dealing equipment，there are 2 sets of decanter centrifuge, the first is middle speed that will remove solids form 5 microns to 7 microns out the second centrifuge is high-speed decanter centrifuge that will separate ultra-fine solids out normally from 2 microns to five microns.  After processed, the mud is going to be clean enough to become used again. As needed, it will likely be sheared or included the 3rd and 4th tank.

Related Arciels:

• Drill Cuttings Separation, DO IT with Chemicals
• Decanter Centrifuge Uses
• GN Solids Control big quantity centrifugal pumps and control panel for customer
• Drilling Fluids for Drilling Project
• Mud Gun-Supportive Solids control equipment

GNMS-1000D Slurry Separation System for TBM and Piling

Not just for gas and oil drillings, which must require a well performance solids control system of mud separation system, but additionally, for other drillings, like horizontal directional drilling, water well drilling, they need mud recycling systems to increase the efficiency and also to cut the cost for drilling. For piling and TBMs, which projects are closer to the surface of the earth, a slurry separation plant or product is very necessary.

Unlike the gas and oil solids control systems and Horizontal directional drilling mud cleaning systems that are always divided per dealing with capacity by GPMs, the TBM and piling slurry separation systems are split into cubic meters each hour. Included in this, typically the most popular and customary capabilities are 240 cubic meters each hour and 120 cubic meters each hour. Lately, GN Solids Control has offered to Asia market and Australia market such slurry separation systems.

This 240 cubic meter slurry separation product is coupled with following tools and components:

GNZY705E-Y2S desander mud cleaner. The low deck is as the shale shaker, with equally coarse screens, as suggested mesh number 25. Top of the deck may be the under shaker for that desander cones, with mesh number 60. Around the lower deck, you will find 3 bits of screens; during top of the deck you will find 2 bits of screens. The Two desander cones are constructed with top quality PU for an extended service existence.

Feeding pump for that desander cones, made the decision through the capacity, there's always outfitted a 55kw centrifugal pump, in some instances, to be able to cut the energy consumption, we're able to also employ a submersible slurry pump for alternative, with 45KW energy consumption.

There is a tank underneath the equipment, with compact design. After getting rid of the desander cones, this slurry separation system might be shipped inside a 20ft container.

This above pointed out product is economic configuration of the capacity. For same capacity systems, GN also offers greater configuration with mixing system, mud agitators and mud guns. Clients could choose appropriate designs per jobsite condition.

Related Arciels:

• Vibration Patterns of Shale Shaker for Oilfield Site
• Corrugated-shaped shale shaker screen advantage
• Oil Sludge Waste Treatment by GN High Speed Decanter Centrifuge with Chemicals for COSL Project
• Dual Centrifuge mud system for CPP
• GN Module Design of Waste Cuttings Management is Available

Cleaning cycle of drilling fluid

Concept: The drilling fluid cleaning cycle is to remove the harmful solid debris, reserve the clean drilling fluid to meet the demand of drilling fluid spec under the drilling process. Drilling fluid cleaning system is the term of all drilling fluid solids control equipments used in the oil drilling.

Function: To prevent the oil well from clogging, breaking, and decrease the drilling torque and friction resistance, reduce the pressure fluctuations of the hollow suction, increase the drilling speed, extend the drilling bit life, and reduce wear and tear of the equipments. Methods: The common methods are mixture-thin methods, swap methods, machine methods and additive-chemical methods. Use different separation function machinery is  machine method is by using screening, centrifugal separation and gravity separation to separate the solid phase according to the different size and density, therefore, to control the solid phase in the drilling fluid.

1 The technical process of the drilling fluid cleaning system and the combination of the fluid cleaning equipment.

The technical process of complete group of drilling fluid cleaning system should meet the specification of five level solid phase control (screening, degassing, desanding, desilting, centrifuge) and the provoke the drilling fluid. The merger of each solids control equipment is very important, the through out of one to five level of mud cleaning equipment should each corresponding, and the spacing of the proper distance were is appropriate.  To have certain overlap during the cleaning process, make the smaller particles of the processing incomplete in the up one had been disposed in the next solids control equipment.

2 Drilling fluid cleaning cycles

The mud back from the opening of well through the pipeline and conveyed the drilling fluid to the shale shaker. The first phase of cleaning completed by shale shaker, then entered the mud tank, the drilling fluid flowed from the mud tank through the tank slot into the desander and desilter (if detect the exits of gas, vacuum degasser will process to remove the gas) the fluid after processing of the centrifugal steps and through the tank slot enters the inhalation cabin.  The cleaned fluid then will reuse for lubricate and cooling the drill bit. 

Related Arciels:

• Equipments for Water based mud drilling cuttings treatment
• Asia Pacific Drilling Waste Management
• GN Manufactured Screen Conforms to API RP 13C
• Why Choose GN’s 4 Panel Shale Shaker for Solids Control
• GN Solids America Attended GPS Successfully in Canada