Category Archives: Drilling Waste Management

Vertical cuttings dryer could be regarded as a vertical centrifuge, and widely used to treat drilling cuttings in oil drilling field. ertical cutting dryers are one of the industry’s best performing and most dependable cutting dryers.

Vertical cutting dryers provides its operators an advantage for environmental and economic reasons. Vertical cuttings dryers are a necessity for industries where increased regulations on cuttings discharge are prevalent.

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Main function of vertical cutting dryer:

A vertical cuttings dryer can reduce liquid content to 5% with less maintenance costs. Vertical cutting dryers offer a waste management solution to effectively clean and dispose of drilling solids and maximize drilling fluid returns specific to operational needs.

Features:

1. The annular drain groove of the Cutting Dryer is installed at an oblique angle at 4°and the drain port is in the bottom of the groove. A vent is designed above the drain port. It’s helpful to discharge the viscous liquid when open the vent.
2. Wear-resistant material is adapted to those parts where may hit by the speeding solids come from the centrifuge. By doing this, we effectively prolong service life of relevant components.
3. Mechanical overload protection device would stop the vertical cutting dryer motor running whenever the torque is larger than rated.
4. Newly designed and unique structure of sludge discharge pipe and sludge collector makes sure the vertical centrifuge dropping and no jam.、

Send your quote via adela@dcmudcleaningequipment.com if you are interesting, DC Machinyer will providing you competitive price.

DC Machinery high-performance, custom-engineered dewatering systems incorporate everything we’ve learned servicing all makes of dewatering equipment for nearly a quarter of a century.

dewatering system

Many municipal and industrial customers appreciate the simplicity of these turnkey systems, which come fully integrated with:
Feed pumps
Polymer makeup systems
Cake transport systems (screw conveyor or cake pump)
System control panels
All other components required for efficient sludge dewatering & thickening
Skid-Mounted or Trailer-Mounted Dewatering Systems
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If you have multiple locations or short-term needs, a trailer-mounted system may provide ideal flexibility. Contact DC Machinery today to discuss your unique requirements.

Mud Skip/Cutting Box with patented sliding door is used for transportation and safe handling of hydrocarbon contaminated drill cuttings from offshore platforms.

The cutting box looks like a traditional roll off, but has no door and usually includes internal gussets on all four sides to keep debris from getting caught in the corners.

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Drilling cutting box produced by Dachuan have the following characteristics:
1. Structure of cutting box is indurative and with watertight seal.
2. The bottom of cutting box is planar and no bulge.
3. Weld surface molding is uniformity, densification, closely integrated with the steel plate, seamless, and no oversize surplus height of seam, weld beading, arc crater, undercut and other defects.
4. Antiseptic sand blasting of Q235A steel, twice of expoxy zinc rich primer, penguard midcoat MIO and chlorinated rubber top-coat. the thickness of dry editpaint film is larger than 100um
5. CCS Certificate of offshore drilling cutting box.

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The Mixing or Cutting container is used to mix the liquid by-product of drilling (“cuttings & mud”) and other medium until it is solid and ready for landfill disposal.

 

Vertical cutting dryer could be regarded as a vertical centrifuge, the discharged cuttings are transferred by the auger get into the Vertical cutting dryer from the opening on the top, under the function of centrifugal force produced by rotation of the screen module.

Vertical dryer can recover up to 95% of drilling fluids. A large decrease in attraction between liquid and oil results in a retort of vertical dryer cuttings that can range between 6% and 1% oil by weight.

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DC Solid control is committed to reducing drilled solids waste and decreasing any related disposal costs. Correct usage of a vertical dryer can ensure client compliance with local environmental regulations and aid in the recovery of base fluid. DC Solid control sets the industry standard in sample testing for reducing fluids discards on drill cuttings.

Decreasing waste, disposal, and recovering fluid allows our clients to decrease operating costs. DC Solidc control’ vertical dryers have durable and functional maintenance characteristics for decreased downtime. All standard parts are easily accessed from the top of the unit. Belts can be changed quickly without removal of the drive assembly and the drive assembly itself can be removed easily.

Due to increasingly stringent environmental requirements around the world, the cost impact of waste management for oil based drilling operations is steadily increasing. This puts a large focus on the ability to efficiently clean, transport, and dispose of cuttings, while maximizing fluids recovery.

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Historically, a successful waste management operation would require a large on site footprint, further increasing operator pad construction costs. As the importance of waste management increases throughout the industry it is necessary to have a solution that can continue to deliver field-proven results while reducing operator liability and cost.

DCTLL-A915 Vertical Cuttings Dryers incorporate the same, unsurpassed drill cuttings dryer technology as the vertical produced by DC Machinyer with the unique design, advanced engineering upgrades and significantly reduced size with minimal reduction of throughput capacity.

DC Solids Control focus on the solids control equipment, and the RD of innovative products for the drilling waste management. DC Solids Control has been widely known as a top Brand in the international market.

DC Solid control is committed to reducing drilled solids waste and decreasing any related disposal costs. Correct usage of a vertical dryer can ensure client compliance with local environmental regulations and aid in the recovery of base fluid.

DC Solid control sets the industry standard in sample testing for reducing fluids discards on drill cuttings. Decreasing waste, disposal, and recovering fluid allows our clients to decrease operating costs. DC’S DCTLL-A550 vertical dryers have durable and functional maintenance characteristics for decreased downtime.

vertical cutting dryer

All standard parts are easily accessed from the top of the unit. Belts can be changed quickly without removal of the drive assembly and the drive assembly itself can be removed easily.

Main Parameters of DC’S DCTLL-A550 vertical dryers
1. Treating capacity: 20t/h
2. Screen basket ID: 550mm
3. Rotary speed: 890rpm
4. Motor power: 22kW
5. Lubrication motor power: 0.55kW
6. Separation factor: 350G
7. Dimension: 1600×1600×2600mm
8. Weight: 3000kg

Anyother questions feel free to contact DC Solid control. There you will getting most professional technological guidance.

The first step in managing drilling wastes is to separate the solid cuttings from the liquid drilling mud. Once solid and liquid drilling wastes have been separated, companies can use a variety of technologies and practices to manage the wastes.

For some applications, drilling wastes are solidified or stabilized prior to their ultimate management practice. The management technologies and practices can be grouped into three major categories: waste minimization, recycle/reuse, and disposal. Follow the below introduction to learn more about the specific technologies and practices in each category.

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Waste Minimization Issues

Waste minimization can be looked at strictly from the perspective of solid waste volume. A more comprehensive view of “minimization” looks at the overall environmental impacts associated with a process or technology. There are many relatively simple processes that can be used on drilling rigs to reduce the amount of mud that is discarded or spilled. Examples include pipe wipers, mud buckets, and vacuuming of spills on the rig floor.

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Beneficial Reuse of Drilling Wastes

Most water-based muds (WBMs) are disposed of when the drilling job is finished. In contrast, many oil-based muds (OBMs) and synthetic-based muds (SBMs) are recycled when possible. Sometimes the physical and chemical properties of the used muds have degraded somewhat, and the muds must be processed to rejuvenate the necessary properties.There are many relatively simple processes that can be used on drilling rigs to capture clean mud that would otherwise be discarded and return it to use. Examples include pipe wipers, mud buckets, and vacuuming of spills on the rig floor. Recovery of mud during tank cleaning may also allow the mud to be reused. Solids control equipment, like centrifuges, can be used to remove solids from the recirculating mud stream.

Disposal

The use of earthen or lined pits is integral to drilling waste management. During most U.S. onshore drilling operations, the cuttings separated by the shale shaker are sent to a pit called the reserve pit located near the drill rig. The pit is generally open to the atmosphere, so it also accumulates stormwater and washwater from the rig.

 

Vertical drilling cutting dryer is a kind of separation equipment which utilizes mechanical rotary produce centrifugal force to realize. It is widely used at home and abroad.

DC Solid control is committed to reducing drilled solids waste and decreasing any related disposal costs. Correct usage of a vertical dryer can ensure client compliance with local environmental regulations and aid in the recovery of base fluid.

Vertical dryer can recover up to 95% of drilling fluids. A large decrease in attraction between liquid and oil results in a retort of vertical dryer cuttings that can range between 6% and 1% oil by weight.

vertical cutting dryer

Features, Advantages and Benefits:

1. The dryer is a compact design, reducing footprint and enhancing operational efficiency.
2. The lubrication system has been relocated for better protection of external components, enhancing equipment longevity。
3. An enhanced water-shield design includes upper access doors, facilitating visual inspection of the screen, basket, and effluent
area.

DC Solid control’ vertical dryers have durable and functional maintenance characteristics for decreased downtime. All standard parts are easily accessed from the top of the unit. Belts can be changed quickly without removal of the drive assembly and the drive assembly itself can be removed easily.

 

The drilling rigs use drilling mud (high density drilling fluid) to pack to drill column. The drilling mud is a mix of chemicals but
there are three basic types; water based, diesel based, and synthetic oil based. But the mud will mixing the harmful solids during
drilling process. As we known, the mud is so expensive, so in order to solve the problems, DC Solid control had a new research of
Solid Waste Management system.

First step, we will using a set of solid control system to collect the useful mud, the solid control system mainly include shale
shaker, desander, desilter, decanter centrifuge to remove the solid.

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If the solids collected by the solid control system are still coated with so much mud that they are unsuitable for the next reuse or
disposal step or if the used mud is valuable enough to collect as much of it as possible, the solids can be further treated with
drying shakers utilizing high gravitational separation, vertical or horizontal rotary cuttings dryers, screw-type squeeze presses, or
centrifuges. The cuttings dryers recover additional mud and produce dry, powdery cuttings.

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The Solid Waste Management system would almost always include 3-6 shaker screens a cuttings dryer, two mid size decanter centrifuges,
and related pumps and containers. The feed from the mud pumps would go over the shaker screens and be concentrated to 50-75% solids
by mass and then fed to a cutting dryer. The underflow from the unit would go to the decanter and be mixed with the underflow from
the screens. A small portion of the decanter centrate is typically recycled into the unit feed to keep the material flowing and keep
the screen openings flushed.

Any requirements, please contact me freely.

Increasingly strict limitations are placed on the discharge of non-aqueous drilling fluids and their associated drill cutting to the environment.

Vertical cutting dryers are normally utilized to reduce the liquid content of cuttings (specially oil base cuttings) to a level that allows to discharge to the environment.

A vertical cutting drier consists of a vertically configured conical basket centrifuge driven be an electric motor through A planetary gear box.

vertical drilling cutting dryer

Wet cutting are fed into the center of the basket and dry cutting exit from the base by gravity.Effluents are collected in a side holding tank for later solids removal and metering into the active system. Within the basket is a Tungsten Carbide tiled conveyor that controls the flow of solids over the screen to obtain maximum dryness.

The benefits of a new dryer system are mentioned below:

Typical waste volume reduction exceeds 30%.
Low power requirement (70HP).
Low noise – due to V- belt drive.
Reduced footprint.

The advantages of the vertical cutting dryer are adaptable, better treating efficiency, stable working, long service life and can effective recycling the drilling fluid in drilling cuttings. You are welcome to contact with us to get more detailed info.  We have professional design team for serving you.