Device and technology capable of combining high-salt content oil field sewage treatment and viscous oil recovery

A combination technology of oilfield sewage and sewage, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, mining fluid, etc., can solve the problems of oilfield mining, rapid equipment corrosion, large steam consumption, etc., to achieve Avoid the problem of corrosion equipment, solve the effect of low heat transfer efficiency and high-efficiency heat exchange and temperature rise

Inactive Publication Date: 2012-02-15
DALIAN UNIV OF TECH
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Problems solved by technology

When these processes are used to treat high-organic and high-salt sewage, there are a series of problems such as incomplete treatment of dissolved substances, serious membrane fouling, and rapid equipment corrosion, which makes the treatment process very limited by water quality. Therefore, new efficient treatment of high-salt oilfield sewage is explored. technology is...

Method used

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  • Device and technology capable of combining high-salt content oil field sewage treatment and viscous oil recovery
  • Device and technology capable of combining high-salt content oil field sewage treatment and viscous oil recovery
  • Device and technology capable of combining high-salt content oil field sewage treatment and viscous oil recovery

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Embodiment Construction

[0035] Such as figure 2 As shown, the specific implementation steps of the high-pressure water incineration evaporator are as follows: first, the fuel and air are respectively matched by the fuel adjustment device (11) and the air adjustment device (10), and are fully mixed in the fuel-air mixing chamber (13). The mixed gas is accelerated in the acceleration tube (14), and then the mixed gas is ejected from the bottom hole to form a mixed jet flow combustion in the combustion chamber (16), and secondary air can be supplemented from the secondary air tube (15) as required to form The cross-fire mixed airflow makes the combustion more complete. Combustion continues to the combustion nozzle (2), after accelerated boosting, the flame is directly injected into the sewage through the combustion nozzle, heat exchange and evaporation are rapid in the evaporation chamber (3), and the secondary (18) is controlled to be discharged, and the secondary steam The pressure and temperature a...

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Abstract

The invention provides a device and a technology capable of combining high-salt content oil field sewage treatment and viscous oil recovery, and belongs to the technical field of sewage treatment. The device and the technology can be utilized for sewage treatment of a petroleum exploitation industry, a petroleum refining industry and chemical production processes, especially, realize high-efficiency treatment of high-salt content oil field sewage, and effectively combine high-salt content oil field sewage treatment and viscous oil recovery. The device is characterized mainly in that the device comprises a burning evaporator used in high pressure water, a multi-stage flash evaporation pot, a spray evaporator and a steam injection boiler. Through the device and the technology, advanced treatment of high-salt content oil field sewage is realized; fresh water and salt slurry can all be obtained; zero discharge is realized really; and waste water production is avoided. In addition, high-temperature high-pressure secondary steam and gas can be combined with boiler steam so that viscous oil can be recovered according to an optimal ratio and full utilization of energy is realized. The device has a compact structure, high efficiency and good economy. The technology is stable, reliable and novel oil field sewage treatment technology.

Description

technical field [0001] The invention relates to a device and a process for combining high-salt oilfield sewage treatment and heavy oil exploitation, and belongs to the technical field of sewage treatment that is energy-saving, emission-reducing, and beneficial to environmental protection. The treatment system efficiently combines oilfield sewage treatment with heavy oil recovery, so as to realize advanced treatment and resource reuse of oilfield produced water. Background technique [0002] Oilfield sewage is the main by-product in the process of oil exploitation. As my country's oil exploitation enters the middle and late stages, the amount of water and steam injected to meet the pressure of formation exploitation is increasing, and the associated oilfield sewage is also increasing, and the treatment pressure is very high. Big. In addition, the composition of oilfield sewage is very complex, containing a large amount of solid dissolved matter, suspended matter, colloid, sed...

Claims

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Application Information

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IPC IPC(8): C02F9/10E21B43/24
Inventor 张春丽孙洪玉
Owner DALIAN UNIV OF TECH
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