Features and Benefits of Drilling Fluids Vertical Cuttings Dryer

Along with the increasing environmental requirements, operating companies need all diversity of solutions so as to take solid/fluid separation technology up a new hill. KOSUN Vertical Centrifuge is a hi-speed vertical cuttings dryer which can perform large-scale solid/liquid separation. It has become a critical edge of operating company to meet the increasingly strict environmental requirements for onshore and offshore drilling cuttings management.

ES-KSN Vertical Centrifuge, i.e. vertical cuttings dryer returns and recycles large proportion SBM ( Synthetic Base Mud ) and OBM ( Oil Base Mud ) to the purification system, which in the past was regarded as waste dumped to the surroundings. ES-KSN Vertical Centrifuge can lower cutting OOC than 6%, the current discharging limit in many areas of the world, however, our goal is to make it lower than 5%, and even further.

Features and Benefits of Drilling Fluids Vertical Cuttings Dryer:
1. Highly effective liquids /solids separation minimizes fluids content of cuttings, reduce waste-disposal volumes.
2. Effective separation reclaim high percentages of fluids that can be reused in the active drilling mud system, recovers whole mud lost from shaker failure ,rig motion and screen blinding.
3. Normal wear parts are easily accessible from the top of the unit; belt are easily changed without removing assembly.
4. Interchangeable tungsten-carbide rotor blades product rotor and gear box from excessive erosion, minimizing main components failure.

KOSUN has won its reputation across the worldwide clients. It is the largest and professional drilling waste management equipment manufacturer in China. It can provide and design full range of drilling waste equipment for different operation capacities and requirements. The main products of KOSUN include oilfield vertical centrifuge, Hi-G shaker, Drilling Decanter Centrifuge, screw conveyer and screw pump, etc.

Application of Hi-G Dryer used in Drilling Waste Management

KOSUN is a professional oilfield drilling mud Hi-G Dryer supplier and manufacturer in China oil drilling mud solids control and drilling waste management industry. As a pioneer in this industry, KOSUN is capable of providing customers with series products, such as oil & gas drilling fluid solids control equipment, decanter centrifuge, drilling waste management equipment and drilling security equipment.

   

Features & Benefits of Hi-G Dryer 

1.High G-force vibration intensity (adjustable as per working conditions); 

2.Make drilling cuttings more drier; 

3.Weir type feed box is more applicable to on-site process; 

4.Fast drilling cuttings conveying speed and high handling capacity; 

5.Screen frame tilt angle can be adjusted from -1° to 5°; 

6.Rapid screen tensioning system ensures easy screen replacement. 

Application of Hi-G Dryer 

KOSUN Hi-G Dryer is used to recover the mud from drilling cuttings, so as to reduce the liquid/oil content in drilling cuttings to as low as about 10%(w/w) and recover part of the drilling mud, so that the drilling cost can be reduced and the drilling waste volume can be cut down, for the purpose of reducing environmental pollution. The Hi-G shaker is suitable for both of WBM and OBM. 

Hi-G dryer is popular used for water based mud drilling cuttings treatment. After Hi-G dryer, high speed centrifuge will be followed for further treating. After treated by centrifuge, solids parts can be used for construction; liquid part can be further treatment by flocculent unit. Hi-G dryer is also can be used for oil based mud drilling cuttings treatment; vice versa, vertical cuttings dryer can also be used for water based mud drilling cuttings treatment. Based on this, KOSUN design it’s vertical centrifuge which can be used for both WBM and OBM drilling cuttings treatment.

Drilling Decanter Centrifuge can be Devided into Three Types by the Separation Factors

The decanter centrifugal force by solid phase particles of liquid ring and the ratio of its own gravity called decanter centrifuge separation factors, the larger decanter centrifuge separation factor can separat finer particles from the mud. Currently drilling decanter centrifuge can be divided into three types according to the size of the separation factors:

a.High-speed decanter centrifuge: its separation factor is about 1200 ~ 2100, the separation point is 2 ~ 5 μ m, used to remove the harmful solid phase, control the mud viscosity, high-speed centrifuge discharge tank, liquid back into the circulatory system, at present our company in Mongolia drilling crew have high-speed centrifuge.

b.Medium-speed decanter centrifuge: the separation factor of about 800, 5 ~ 7 μm, used to remove harmful solid phase of mud, control mud weight and viscosity, this is the drilling crew most used centrifuge resently.

c.Low speed decanter centrifuge：it also called "Barite Recovery of Decanter Centrifuge", the separation factors is 500 ~ 700,for low density of solid phase, the separation point is 6 ~ 10μm. For high density solid phase, the separation point for 4~ 7 μm, the decanting centrifuge is mainly used for recycling barite.

Drilling decanter centrifuge separation principle is to use high-speed rotating roller driven into the mud in the high speed rotating drum, mud was dumped into the wall to form a liquid circle, solid phased particles of liquid ring get greater than its own gravity for undreds or even thousands of times the effect of centrifugal force, will overcome the resistance of the slurry viscosity to the roller on the inner wall of rapid subsidence formed solid layer, liquid forming liquid layer.

KOSUN Drilling Decanter Centrifuge is Used in Drilling Mud System

As is well-known, drilling mud is the blood of oil drilling system, and it is very precious. The drilling mud solids control system can effectively separate the large drilling cuttings, barite and other large solid particles contained in the drilling mud returned to the ground from well. The treated drilling mud can be used repeatedly. The role of drilling mud solids control is to treat and recycle the drilling mud returned to the ground from well with solids control system or some solids control equipment, so as to reduce the drilling cost and protect environment.

KOSUN DC series oilfield drilling fluids decanter centrifuge is used in drilling mud system for separating suspension of solids phase with particle diameter（d≥2μm） for drilling mud circulation and drilling fluids recycling. Ruggedly built for oilfield and industrial services, drilling mud centrifuge is especially effective in environmentally sensitive areas. It delivers high fluid-recovery rates and efficient solids control to significantly reduce the costs of makeup fluids and disposal. The oil drilling mud decanting centrifuge must test the dynamic balance for smooth operation over long periods. Speed ranging from 0 to 3900 RPM, generating centrifugal forces reach up to 3000G.

To ensure that the effective treatment result and long service life, the important parts adopts high quality stainless steel, forging material, strengthen heat treatment and strict control processing. And on each part that easily wear take spraying wear-resisting layer and mosaic of hard alloy etc. The overflow of the main drum mouth using adjustable poling board, it can be adjusted anytime according to different sludge treatment.

The mud separation process between solid phase and liquid phase is completed in the roller. Decanter centrifuge separation principle is to use high-speed rotating roller driven into the mud in the high speed rotating drum, mud was dumped into the wall to form a liquid circle, solid phased particles of liquid ring get greater than its own gravity for undreds or even thousands of times the effect of centrifugal force, will overcome the resistance of the slurry viscosity to the roller on the inner wall of rapid subsidence formed solid layer, liquid forming liquid layer.

KOSUN VC-1000 Cuttings Dryer System can Improves Overall Cost-efficiency

Nowadays, international community is paying more and more attention to environmental protection and customers have seen practical economic benefits brought by drilling waste management equipment. Drilling fluid recycled each day can save tens of thousands of US dollars for customers. More and more new and regular customers write to KOSUN to ask about our technologies and equipment related to drilling waste management.

The national oil company in Algeria, Sonatrach, and the international operators working in the area were concerned about the environmental impact of their drilling operations and were looking for the best environmental practices to apply to their projects. They were on the look‐out for advanced technologies that would assist them in achieving their environmental goals.

In view of this kind of situation,KOSUN recommended the operator employ a specially engineered VC-1000 cuttings dryer system designed to recover and return a large percentage of invert emulsion mud to the active drilling fluid system that otherwise would be lost as a waste product. The vertical cuttings dryer features a state-of-the-art design that can process varying amounts of cuttings and fluids, typically up to 60 tons per hour. Dry solids discharged from the dryer are typically ≤5% oil content by wet weight. Economics the vertical cuttings dryer improves overall cost-efficiency, producing reduced amounts of extremely dry cuttings for disposal and recovering valuable fluid for reuse. It is effective with water-, oil- and synthetic-base drilling fluids.

KOSUN is the leader in China’s solids control industry and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuges, drilling waste treatment equipment and drilling security equipment, including 25 categories of products, and can also customize packaged design and matching products of oil & gas drilling rigs for drilling contractors. The products provided by KOSUN are extensively used in oil & gas drilling and work over, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, municipal environment-friendly sewage treatment, industrial wastewater, Treatment, fruit juice purification, waste oil recovery and purification treatment, etc.

Vertical Centrifuge and High G Dryer used in Drilling Waste Management

As every drilling operation is different and each rig have its own design and conditions we designed the vertical centrifuge in a way that allow us to easily customize it based on the customers and rigs conditions.

Drying with Vertical Centrifuge:
One of the valuable fluids recovery techniques for the Oil Base Mud (OBM) is Vertical Centrifuge:
1.Reducing liquid on cutting (OCC%) to less than 5%.
2.Minimizing Waste Volume, Waste transportation cost and the chance of spilling while transferring.
3.Retrieving Drilling fluids off the discharged wet cuttings, which reduce the need of building Fresh Mud.

In drilling operations, typical solids control equipment discards 1-4 barrels of liquid for each barrel of solids removed. Studies have shown that the Vertical Cutting Dryer can recover one bbl. of fluid, for each 2.5 bbl. of solids exiting the Vertical Dryer. This recovery is measured after processing through the solid bowl-decanting centrifuge.

Drying with High G Dryer:
Other second Drying Equipment for both Water & Oil base mud is the High G Dryer System:
1.Recovers up to 80% of cuttings, which could be solidified & safely used or disposed off.
2.Achieves 8 to 10 % Oil on Cutting (OCC %).

Most of the competitors are offering a standard package for their customers which in most of the time create further issues at the time of rig up and rig down, that is why we decide to have the main body of the VC and we are customizing the accessories like the Skid and the control panel based on the customers requirement.

Why Choose KOSUN Vertical Centrifuge?

The vertical cuttings dryer features a state-of-the-art design that can process varying amounts of cuttings and fluids, typically up to 60 tons per hour. Dry solids discharged from the dryer are typically≤5% oil content by wet weight. Economics The vertical cuttings dryer improves overall cost-efficiency, producing reduced amounts of extremely dry cuttings for disposal and recovering valuable fluid for reuse. It is effective with water-, oil- and synthetic-base drilling fluids.

Why Choose KOSUN Vertical Centrifuge?

In today’s world, where the industry is evolving instantly, the need for better, lighter and easier to manage equipment is what all the customers is looking for?

The VC is being designed mainly for the Oil Base Mud operations (OBM) and with the high cost of these operations there is a need for equipment, which affect the 3 main factors:

• Cost

• Environment

• Preserving the drilling fluids

Features and Benefits

• Superior environmental performance

Highly effective liquids/solids separation minimizes fluid content of cuttings prior to offshore discharge

• Improved drilling fluid recovery

Effective separation returns high percentages of fluid cuttings; also recovers whole mud lost from shaker failure, rig motion and screen blinding.

• Safety

Explosion-proof motors and Control panel with certified accessories.

• Ease of maintenance

Flushing system prevents solids buildup in the recovery area and minimizes shutdowns for cleaning.

• Programmable logic controller (PLC)

• Environment

• Preserving the drilling fluids

With automatic warning indicators, monitoring system for temperature, torque, oil flow, amperage, overload and total operating hours; prevents gear and bearing damage from inadequate lubrication.

• Lubrication system

The VC -1000 is equipped with a hydraulic lubrication system that facilitates and reduces the cost of daily maintenance.

• High-capacity

Continuous feed unit have the throughput to keep up with drilling operations.

• Tungsten carbide coated

Independently adjustable flights reduce wear and ensure optimal tolerance.

• Horizontal screens

Allow higher wiping efficiency and less plugging.

KOSUN is the leader in China’s solids control industry and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuges, drillingwaste treatment equipment and drilling security equipment, including 25 categories of products, and can also customize packaged design and matching products of oil & gas drilling rigs for drilling contractors. The products provided by KOSUN are extensively used in oil & gas drilling and work over, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, municipal environment-friendly sewage treatment, industrial wastewater, Treatment, fruit juice purification, waste oil recovery and purification treatment, etc.

KOSUN can Achieve the Zero Discharge of Drilling Waste

Drilling waste management and zero discharge is a getting much popular recent years. It is important to get zero discharge on drilling waste management. Many EPC company wanna source professional equipment and professional personnel on the potential projects with large profit.  It is said that the drilling waste market capacity can reach 17 billion before 2018.

What is “zero discharge of drilling waste”?
The conception “zero discharge of drilling waste” is generated relative to traditional drilling waste management mode. During the traditional drilling process, waste pit is built at the drilling site for drilling waste management. That is, drilling waste is discharged to the waste pit at ground level for next-stage treatment, or even directly buried. This traditional discharge mode causes serious pollution and great harm to the environment and human life; therefore, State Environmental Protection Administration of China made a formal legislation in January 2015 to put forward stricter requirements and standards for drilling waste management. The conception “zero discharge of drilling mud” emerges at the right moment. Some people also call it “zero discharge of drilling cuttings”.

How to achieve “zero discharge of drilling waste”?
In view of the above situation, the chief engineer Mr. Zhang, the principal of Xi’an Oil and Gas Drilling Waste Management Engineering Research Center, told us that there are many effective drilling waste management methods at present, including Hi-G dryer shaker, solidification, thermal desorption, cuttings dryer system as well as WBM dewatering method, etc.

Above are main drilling waste management methods at home and abroad. The most common “zero discharge of drilling waste” management modes are management while drilling and centralized management. For detailed process of various management modes previously described, please consult the Xi’an Oil and Gas Drilling Waste Management Engineering Research Center of KOSUN.

KOSUN DWM Solids Control launched a relative solution by the integration of domestic,and foreign drilling waste management experience and methods as well as the consideration of drilling waste production process.Drilling waste dry-off is to treat drilling waste by special equipment for dry-off and effectively reduce oil and water content in drilling waste,The key equipment commonly used for drilling waste dry-off is Cuttings Dryer and Hi-G dryer. Thus meeting statutory drilling waste discharge standards.

A Professional Training about Drilling Waste Management Technology was Held in KOSUN

In active response to national environmental protection policies, KOSUN sets up “Xi’an Oil & Gas Drilling Waste Management Engineering Center”. On January 22, 2015, the center held a training on drilling waste management at KOSUN head office in Xi’an Hi-tech zone, China, which staff from International Business Department, Marketing Department, Technical Services Department and other related departments attended.

Chief engineer from Technical Services Department systematically elaborated significance and urgency of drilling waste management, advantages and disadvantages of related management technologies, KOSUN drilling waste management equipment and product treatment effect on site from onshore to offshore, home to abroad, concept to execution and theory to practice.

Through the training, KOSUN staff profoundly understood that drilling waste management was a significant measure to earnestly implement the government’s policies of energy saving and emission reduction, environment protection and pollution control and environment quality improvement. Only by earnest learning and mastering of drilling waste management technologies, equipment and its advantages & disadvantages, can we provide customers with better sales and technical services.

KOSUN is capable of providing customers with such three series as oil & gas drilling solids control equipment, decanter centrifuges, shale shaker, mud gun, mud agitator, vacuum degasser, jet mud mixer, mud cleaner, desander, desilter and drilling waste treatment equipment, including 25 categories of products, which are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, industrial wastewater treatment, environmentally friendly sewage treatment, waste oil recovery, purification treatment, etc.

Application of Decanting Centrifuge Used in Drilling Waste Management

For unweighted drilling fluids, a decanter centrifuge is often used on the active mud system ot remove as many drilled solids as possible, which helps to control the weight or density of the mud. The effluent containing colloidal solids, such as bentonite and chemical additives, is returned to the active mud system. If it is an expensive drilling fluids, often the hydrocycone unders can be processed with a centrifuge to recover as much of the associated liquid phase as possible while discharging the solids.

This centrifuge features an elongated cylinder with a conveyor in the center. The cylinder spins at a different velocity, which in turn pushes denser material to the exterior wall. The conveyor then distributes these solids to the opposite end of the centrifuge where it is discharged. Decanter centrifuge is used to separate (dewater) solid materials from liquids in solids control system when they are mixed together in mud.

As decanting centrifuge is highly efficient and effective, there has been little change in the technology regarding centrifuge equipment over the past few decades. The life span of a typical centrifuge ranges from 15 to 25 years depending on the style of the equipment and the quality of the manufacturer.

In the processing of drilling waste management job, as a key drilling waste management equipment, oilfield decanting centrifuge requires a centrifugal force for the separation of the solids from the liquid. This characteristic is dependent on the radius of the centrifuge and its angular rotational speed. G-force is related to the gravitational acceleration and centrifugal acceleration inside the bowl.

KOSUN exclusively handles oil & gas drilling fluids solids control equipment and solids control system, as well as varieties of chemical agent, such as shale shaker, decanter centrifuge, desander, vacuum degasser, mud cleaner, mud agitator, electrical ignition device, etc. KOSUN has been serving the oil & gas industry for 20 years since its establishment in 1992, and has obtained good experience on equipment manufacturing & oilfield service.

KOSUN Screw Conveyor is used in the Drilling Waste Management for Cuttings Transportation

Screw conveyer, commonly known as auger. It has horizontal, inclined and combined form, and it can be used with other transport devices, to accomplish combined transport, separate transport, mixing, blending, dehydration, compounding, discharging and stacking, etc. KOSUN Screw Conveyer is used in the drilling waste management for the drilling fluids or cuttings transportation.

Features and Benefits of KOSUN Screw Conveyor
1. It has compact structure, small cross section, light weight, good sealing performance, highly efficient transportation, flexible technological layout, with ease of installation, dismantlement, motion and safe operation.
2. It is applicable to transport various kinds of soft materials such as powder, granular and small pieces of materials for example: clay, powder, pulverized coal, cement, sand, grain, small pieces of coal, cobble, cast iron filings, etc.
3. It is not applicable to transport materials that is of high viscosity and is easy to be curdled.

Auger in drilling waste is transferred from one location to another location device is safe and effective, and widely used in foreign drilling crew and offshore drilling platforms. Drilling Cuttings Screw Conveyor performance close, divided shaftless and have two kinds of shaft, housing selection wear-resistant material, long life, the output speed can be adjusted to handle a large amount of debris.

How is the vertical cutting dryer dry-off the drilling fluid?

Drilling waste management is to treat and recover the solids generated during drilling and finally meet environment protection and discharge standards in countries and regions locally. It can meet the requirement of unlanding treatment of drilling mud, effectively prevent environmental pollution, save drilling mud and reduce drilling cost. At present, there are many drilling waste management methods and devices with different treatment effects. Based on the conditions of various drilling sites at home and abroad, the primary and prevailing drilling waste management method is dry-off.

Vertical centrifuge is also called vertical cutting dryer, it is an innovative design which fits for oil-based drilling waste management. Drilling cuttings from the primary solids control equipment like shale shakers or mud cleaners are picked up by auger ( screw ) conveyor and transfered to feeder of the vertical cutting dryer.

1. Reduce Environmental Impact and Meet Compliance Regulations
As regulations on drilling waste become more stringent, operators are in need of a reliable waste disposal solution that ensures the waste and the liability of its impact are gone for good. KOSUN Vertical Cuttings Dryer can offer a reliable solution by reducing the oil on cuttings ratio of oil-based fluids to an acceptable limit for waste disposal.

2. Maximize Separation to Maximize Savings
KOSUN Vertical Cutting Dryer was designed to provide efficient throughput for high rop operations. Its high capacity processing provides substantial reduction to the oil-on-cuttings ratio to help meet compliance regulations for waste disposal. Maximum separation of solids and liquids can be achieved. Increased separation means increased fluid recovery, lower cost of replacement fluid and minimal waste to be transported and disposed of, going straight to your bottom line.

3. Integrated and Customized Packages to Meet Your Needs
Low gravity solids and other waste can ruin the integrity of the circulating system. KOSUN Cutting Dryer is one piece of the solids control system designed to remove solids and keep your operation running smoothly. KOSUN adheres to our rigorous mainstay process to design, test and implement the right solids control system for your rig.

Vertical cutting dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up to 900RPM with G force up to 420. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for vertical cutting dryer proper operation. KOSUN Vertical Cutting Dryer has been done strict balance testing for all major rotary components to minimize vibration and noise. The cutting dryer is the ideal products for oil-based drilling waste management.

KOSUN Cuttings Management Expertise to Minimize Environmental Footprint

Drilling waste management involves the processing of drill cuttings on and after they leave the rig shaker. Our solutions reduce hauloff and disposal volumes, allow for increased recovery and reuse of drilling fluids, and reduce the environmental footprint of the drilling process.

KOSUN cuttings management suite also includes advanced thermal desorption technologies, which are comprised of HAMMERMILL onshore and offshore desorption units and THERMAL PHASE SEPARATION technology. M-I SWACO also has significant expertise in the planning, execution and monitoring of in-situ injection of drilling waste by means of the CUTTINGS RE-INJECTION (CRI) Assurance program.

1.Minimization of cuttings volumes
Highly effective liquids/solids separation techniques like thermal and frictional desorption minimalize the fluid content of drill cuttings prior to discharge or transportation. This significantly reduces total waste volumes and minimizes the need for costly transportation of waste materials.

2.Safe, permanent cuttings disposal
The Cuttings Re-Injection (CRI) process has emerged as a cost-effective, permanent, and sound solution for drill cuttings disposal, especially in environmentally sensitive and remote locations. CRI operations may be done in situ at or near the waste generation site, thereby eliminating the need to package and haul cuttings long distances to treatment facilities. Operators save time, labor, rig space and mitigate HSE risk by avoiding transportation over water or on roadways.

3.Total containment of drill cuttings
Our drill cuttings management systems give operators flexible solutions for improving the safety and efficiency of drill cuttings containment and permanent remediation. The systems capture the drill cuttings as they exit the shaker and maintain them fully contained in a sealed system all the way to final processing.

Previously, recommended by a local well-known drilling company, one of KOSUN customers, four new-type cuttings dryers (vertical centrifuges) had access to the blocks of its Drilling Waste Management Business Division. It is worth mentioning that handling capacity and effects of the above four dryers are as good as those of top international products, like cuttings dryer from MI-SWACO and CSI, and our equipment were highly recognized by the drilling service company. So, the customer temporarily placed another order from KOSUN of such eight sets of drilling waste management systems, including several D355 decanter centrifuges, cuttings dryers, Hi-G dryer shaker, etc.

Develop Zero Contaminants Discharge Through Drilling Waste Management

Drilling oil wells produce large quantities of solid waste drill cuttings management and also fluids that must be properly managed to prevent negative impact on human health and the environment.

The fluids comprised of drilling mud or brines used in each section of the well. The potential health and environmental hazards are fluids containing large amount of oil (diesel-based mud or OBM) or salts (high salinity water-based mud & completion brines). The solids are the cuttings removed from the hole. They do not present any hazards by their natural minerals but, if generated during drilling with OBM, they are contaminated by 20 to 30 % of oil, which require further treatment before final disposal.

One crucial social objective of drilling operators worldwide have dedicated to seeking continual improvement to minimize the impact of its drilling operations on the environment and conserving unpolluted environment for future generations. One of the main challenges within drilling waste management system is proper management of the fluids & solids generated by drilling oil & gas wells.

To develop zero contaminants discharge policy through implementing drilling waste management. The first move is to minimize as much as practical the amount of waste generated in solids control system processing. Then reduce the holes diameter (less cuttings generated & less mud to be disposed off) by optimizing the well casings program for every single well. The next, eliminate the use of "emulsion" mud (oil added to WBM to reduce weight) in loss circulation zones by using "Aerated mud" (compressed air added to reduce weight). At last, improve the efficiency of the solid control equipment installed on the rigs ("state of the art" shale shakers and rented "Hi-G dryers & centrifuges) to reduce the need for dilutions & limit the amount of oil on cuttings. Strive to reduce OBM usage by assessing & trying new inhibitive water mud systems.