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What is the newest technology in drilling waste treatment?

The main components of the drilling waste are cuttings, excess drilling fluids, hydrocarbons and water and are mostly categorized as hazardous waste. The disposal of these wastes are, in most locations around the world, highly regulated. The solids in the drill cuttings are usually separated and the cleaned off drill mud residue, as well as the produced water are usually cleaned at considerable costs.(drilling waste treatment)

drilling waste treatment equipment

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.

The Following information is more about the drilling waste treatment equipment：

–Vertical Cuttings Dryer( Vertical Centrifuge) can perform solid/liquid separation through centrifugal separation. The vertical cuttings dryer can effectively recover the liquid phase in drilling cuttings, making the solid phase become very dry. It is suitable for water-base mud, oil-base mud and synthetic base mud. By recovering the mud in drilling cuttings, the vertical cuttings dryer can reduce the drilling cost and cut down environmental pollution. With handling capacity of 40-60 T/h, the oil on cuttings (OOC) of drilling cuttings can be reduced to lower than 5% (w/w) after treatment, meeting the international emissions standards and environmental protection requirements. The vertical centrifuge can also be applicable for drilling waste management in onshore and offshore drilling.

-DC Series Decanter Centrifuge is used in separating suspension of solids phase with particle ≥2μm in diameter for drilling mud and fluids handling.

-Screw Pump is an ideal pump used to feed drilling fluids to decanter centrifuge since drilling fluids is pushed to proceed along axial direction evenly. Therefore, the inner flow speed is kept low, volume unchanged and pressure stable so that vortex and agitation are prevented. Screw Pump is useful for wet mud drilling mud waste management and cuttings transportation.

–Screw conveyor (Auger) can be used in drilling waste management projects, providing an effective and low-cost drilling cuttings transport system for offshore and onshore drilling rigs. Adopting a multi-sectional composite structure with each section of 12 feet (3.66m), the screw conveyor can be flexibly assembled on different drilling sites, with characteristics of simple operation, stable structure, strong adaptability and high safety, significantly improving the operating efficiency of equipment and reducing the cost and resources. The flights of screw conveyer adopt wear-resistant material to ensure its service life.

–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 dryer suitable for both of WBM and OBM.

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Cutting Dryer very Popular all over the World

Cutting Dryer

Vertical cuttings dryer use the centrifugal force to separate the oil from the drilling cuttings generated during oil extraction process from an oil well. The drilling cuttings are the waste product generated in large volume in drilling operations.
They are gaining popularity worldwide due to their capacity to separate oil from the solid waste that could be measured as ROC (retained oil on cuttings) or OOC (oil on cuttings). They are said to recover as much as 15% of the volume of the total waste. This not only saves the environmental damage but results into unintended loss of oil and economy of operations.

cutting dryer
cutting dryer

The way a vertical cutting dryer works could be understood in these simple steps –
A.    The drilling waste is churned using centrifugal force generated by mechanical rotation that results into separating of oil from solid.
B.    The drilling cutting generated solid waste is eliminated using sieve basket and scrapper.
C.    The liquid thus extracted is carried through pipes to a separate tank for further treatment and solid remains in the basket
D.    Then the dried solid waste is discharge to a separate container for further disposal.
The drill cuttings thus separated by cutting dryer from drilling liquid forms large part of the drilling waste and needs to be disposed off safely to prevent the contamination of environment.
Drilling waste treatment was not given much importance in earlier period when drilling operations came into existence but the scenario changed rapidly off late beginning early 1980s in wake of damaging impact of un-thoughtful disposal methods used by companies. The oil and gas industry has become more aware of their responsibility toward the environmental wellbeing thanks to number of protests by local people where such damages were evident and intervened by regulatory authorities thereafter.
Since then the technological advancement has played significant role in improving the drilling operations and their environmental footprints. Vertical Cutting Dryers are one such significant development in that direction.

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Vertical Cutting Dryer for Oil Base Mud of Kosun Manufacturer

Vertical Cutting Dryer

Oil Base Muds (OBMs) came into general use in the oil field in early 1950s. These oil base mud aid the process of drilling by providing the much needed lubrication for the equipments without damaging the reservoir that they are drilling into.

The use of vertical cuttings dryer with oil base mud drill cuttings is done to treat them. They are usually deployed with high speed centrifugal equipment to get best performance.

vertical cutting dryer
vertical cutting dryer

There is variety of combinations available in the market for treating only oil base mud or only synthetic base mud or both or along with water base mud as well.
The Oil base mud is used to reduce friction between drill pipe and formation. Operators also have the benefit of non-aqueous drilling fluids coupled with technology that help manage cuttings and excess oil and synthetic base mud.

In ensuring the environmental regulations, depending upon the local legislations, this becomes more helpful to pay extra attention to get rid of toxicity the drilling cutting waste endangers. The major benefit is that it’s not only efficient in reducing the environmental risk but also improving the profitability for the operators.

Ion any drilling project, operators must achieve a good balance between minimizing environmental impact, maintaining the drill stability and maximizing its efficiency. The use of non-aqueous fluid, both oil base mud and synthetic base mud, has increased substantially in the industry off late, owing primarily to the inherent inhibitive and lubricate qualities of these fluids coupled with the benefits of vertical cutting dryer in managing the drilling waste.

As the environmental discharge regulations get stricter, it is all the more important for operators to embrace technologies like these. A vertical cutting dryer performs that task for the operators and that too at economy. A surface solid control equipment is more efficient in dealing with larger cuttings and the dilution volume required to reduce fine solid content in the drilling fluid is reduced. Ultimately the total waste volume is significantly reduced.

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Cutting Dryer-Centrifuge For Drillng Waste Management

Cutting Dryer

Cutting dryer of Kosun is a well-known brands in China. It has 25 years of history in solids control.

Cutting dryer is also a kind of centrifuge which is used for solid and liquid
separation through centrifugal separation. Cuttings dryer have been proven to be one of the most effective waste management equipment for oil-based or synthetic drilling operations.

Cutting Dryer
Cutting Dryer

Centrifuge is the use of centrifugal force, separation of liquid and solid particles or liquid and liquid mixture of the components of the mechanical. The centrifuge is mainly used to separate the solid particles in the suspension from the liquid or to separate the two different densities and incompatible liquids (eg, to separate the cream from the milk) in the emulsion;

It can also be used to exclude Wet solids in the liquid, such as washing clothes with wet clothes; special ultra-speed tube separator can also be separated from different density of gas mixture; the use of different density or particle size of solid particles in the liquid settling speed of different characteristics, some settlement The centrifuge can also classify the solid particles by density or particle size.

Why  this centrifuge is so popular?
It contain below reseasons:
1. Highly effective separation liquids/solids
2. Minimizes fluid content of cuttings
3. Decease waste-disposal volumes
4. Meet various operation requirements
5. Ease to maintence.
6. Improved efficiency and lower costs
7. Lowere cost because lower waste volumes.

Vertical cutting dryer of Kosun has more than 25 years old in solid control industry.  Kosun concluded much more experience in drilling waste.

With years marketing experience, KOSUN have been expanded its market globally, and have been established the friendly partnership with GAZPROM, PEMEX, AVA, SOCAR, SAE, etc.

As a leader in China’s solid control and drilling waste management industry, Kosun has been highly valued by its local customers for its high quality products and quality service. Branch letter will continue to provide customers with better products and services.