DOING Industrial Continuous Intelligent Pyrolysis Equipment Successfully Expands Its Application Field - Oil-Based Cuttings!

DOING continues its pioneering journey with the launch of its industrial continuous oil-based cuttings pyrolysis equipment. This latest breakthrough follows the successful application of their pyrolysis technology in processing waste tires, plastics, and oil sludge. With this new technology, DOING extends its innovative solutions to oil-based cuttings, setting a new industry standard in waste recycling. The oil-based cuttings pyrolysis technology developed by DOING addresses numerous challenges in oil-based cuttings treatment, including the risks of coking, wall adhesion, and furnace corrosion during the pyrolysis process. It breaks through technological bottlenecks and offers an efficient, environmentally friendly solution for the treatment of oil-based cuttings, offering a full chemical recycling loop.

DOING oil-based cuttings pyrolysis equipment

What Are Oil-Based Cuttings?

Oil-based cuttings are solid waste produced during the exploration and development of shale gas fields when oil-based drilling fluids are used to drill through rock formations. As the drill bit breaks the rock, cuttings are carried up to the surface by the oil-based fluid. After separating the liquid phase through a solid control system, the solid phase is what is known as oil-based cuttings. These cuttings contain a high amount of mineral oil (approximately 10%), water (around 30%), and have a density of 1.8 kg/m³, making them classified as hazardous waste according to national regulations.

Oil-Based Cuttings

Physical and Chemical Properties of Oil-Based Cuttings:

1.High Oil Content

Oil-based cuttings contain a significant amount of petroleum substances, giving them high calorific value and density.

2.Complex Composition

In addition to petroleum components, they also contain rock drillings, heavy metals, and organic compounds, making them difficult to treat.

3.Poor Stability

Petroleum substances are volatile and prone to oxidation, making transportation challenging. Centrifugation is often used to dewater the cuttings before transport.

Oil-Based Cuttings Characteristics

The organic compounds and heavy metals in oil-based cuttings can leach into surface or groundwater, causing localized water pollution. The petroleum substances can also alter soil structure, suppress plant germination, inhibit microbial growth, and reduce soil wettability, posing serious environmental hazards.

Traditional Oil-Based Cuttings Treatment Methods:

1.Solidification

Solidifying oil-based cuttings with materials like cement or lime helps to stabilize hazardous substances but does not recover valuable oil and gas, resulting in resource waste.

2.Physical Separation

Techniques such as centrifugation separate water and oil, but are limited in effectiveness and can't meet stringent environmental requirements.

3.Incineration

High-temperature incineration destroys organic pollutants but generates large amounts of harmful gases and requires further treatment of residual ash to prevent secondary contamination.

Traditional oil-based cuttings treatment ways

However, simple physical and chemical methods often cannot completely remove the oil in drill cuttings, and may cause secondary pollution. At the new technology level of harmless treatment of drilling cuttings, pyrolysis technology is widely used and has better treatment effects. Unlike waste tires with a single composition and stable characteristics, oil-based cuttings are more challenging to handle due to their high water content, complex composition, difficulty in removal, easy coking and corrosiveness. In response to these technical challenges.

DOING solutions include:

Dehydrated oil-based cuttings

1.High Moisture Content

Centrifugation reduces moisture content to around 4%, optimizing the pyrolysis process.

2.Coking

The system features mechanical de-coking devices (energy balls) that prevent the formation of coke by improving material dispersion and heat transfer.

3.Corrosiveness

Oil-based cuttings have a high pH and can corrode furnace walls. DOING uses durable stainless steel materials to withstand this corrosion.

Oil-Based Cuttings Pyrolysis Technological Advantages:

Advantages of oil-based cuttings pyrolysis technological

1.High Environmental Standards

Meets strict environmental regulations for hazardous waste treatment.

2.Wide Material Compatibility

Can handle a variety of oil-based cuttings with different compositions.

3.Large Treatment Capacity, Low Costs

The pyrolysis equipment can process large volumes of waste at a lower cost.

4.Proven Stability

Over 10 years of reliable operation.

5. Intelligent Automation

Minimal personnel requirements, reducing operational costs.

Oil-based rock cuttings pyrolysis products

This industrial continuous oil-based cuttings pyrolysis equipment has been successfully deployed in Shandong, China, where it has gained attention in the pyrolysis industry. Moving forward, DOING plans to continue investing in research and development to create more proprietary technologies and solutions for the treatment of solid and hazardous waste.