Process method for treating oily sludge of oil field

A process method and technology for landing oil sludge, applied in the field of oil sludge treatment, can solve the problems of increasing the secondary pollution of oil sludge, failing to realize resource treatment and addition, etc., and achieve the effect of realizing resource utilization.

Inactive Publication Date: 2017-10-20
甘肃新鑫能源工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing patent document "A Process for Treating Oilfield Sludge" (CN106242205A) introduces a process for treating oilfield sludge. By adding chemicals, water, etc., the oil content is ≤2%, and the water content is about 80%. Sludge, water and cru

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  • Process method for treating oily sludge of oil field

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Embodiment 1

[0033] Taking the semi-fluid landed oil sludge as an example, firstly screen out large pieces and impurities, dry and crush to obtain oil sludge with a moisture content of less than 40% and a particle size of less than 20mm, which is evenly laid on the steel belt through a homogeneous feeding system , follow the assembly line for preheating and pyrolysis to generate tailings with an oil content of <3‰, which are used as raw materials for industrial land or building materials, and the tail gas generated enters the oil and gas treatment system, through condensation, oil-water separation, high-temperature incineration, desulfurization and denitrification, activated carbon adsorption, etc. Turned into oil, water, and exhaust gas up to standard.

Embodiment 2

[0035] Taking the solid ground oil sludge as an example, firstly, large pieces and impurities are screened out, and crushed to obtain oil sludge with a particle size of less than 20mm, which is evenly laid on the steel belt through a homogeneous feeding system, followed by preheating and pyrolysis along the assembly line, Tailings with an oil content of <3‰ are generated and used as raw materials for industrial land or building materials. The tail gas generated enters the oil and gas treatment system, and becomes oil, water, and emission standards through condensation, oil-water separation, high-temperature incineration, desulfurization and denitrification, and activated carbon adsorption. .

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Abstract

The invention discloses a process method for treating oily sludge of an oil field. The oily sludge is decomposed into water, crude oil, tailings and gas through oily sludge screening, oily sludge drying, oily sludge crushing, oily sludge homogeneous feeding, oily sludge preheating, oily sludge pyrolysis and oil gas treatment. Water can be recycled, the crude oil can be stored, the tailings can be used as building raw materials, gas discharge reaches standards and oily sludge resourceful treatment is realized. The oily sludge screening process screens bulk materials and impurities. The oily sludge drying process is used for reducing water content of semi-fluid/fluid oily sludge having water content greater than 40% to 40% or less. The oil gas treatment process is used for transforming gas produced by pyrolysis into water, crude oil and gas satisfying emission standards through condensation, oil-water separation, high-temperature combustion and tail gas desulfurization and denitrification. The process method has the advantages of reasonable design, safety, environmental friendliness, good treatment effect, high treatment efficiency, cost saving, economical efficiency, applicability and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of oil sludge treatment, and in particular relates to a process for treating oilfield sludge. Background technique [0002] At present, the harmless treatment technology of oil sludge includes immobilization treatment, biological treatment, incineration and other technologies. The comprehensive utilization technology includes thermal decomposition, brick making and paving and other uses. There are various treatment technologies for oily mud sand, and each method has its own advantages. Disadvantages and scope of application. [0003] The existing patent document "A Process for Treating Oilfield Sludge" (CN106242205A) introduces a process for treating oilfield sludge. By adding chemicals, water, etc., the oil content is ≤2%, and the water content is about 80%. Sludge, water and crude oil have realized the reduction and recycling of oily sludge, but the disadvantage of this patent is the addition of chemicals...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/10C02F11/12C10G1/00B09B3/00C02F103/10
CPCY02W10/40C02F11/00B09B3/00C02F11/10C02F11/12C02F2103/10C10G1/00
Inventor 齐加胜黄欣欣
Owner 甘肃新鑫能源工程有限公司
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