Method for comprehensively treating oil field waste by using physicochemical and biochemical technologies

A technology for comprehensive treatment of oil field waste, applied in the field of comprehensive treatment and utilization of oil field waste, which can solve problems such as ecological and environmental protection pollution

Inactive Publication Date: 2018-08-28
陈淡宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problem of ecological and environmental protection pollution existing in traditional treatment me

Method used

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  • Method for comprehensively treating oil field waste by using physicochemical and biochemical technologies

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Embodiment 1

[0026] Such as figure 1 As shown, the method for comprehensively treating oilfield waste by using physical, chemical and biochemical technologies in this embodiment is carried out in the following steps:

[0027] (1) Solid-liquid separation: collect and stir oilfield waste, and separate solid phase and liquid-oil phase through solid-liquid two-phase separation;

[0028] (2) Three-phase separation: In the step (1), the solid phase is filtered by a sludge filter press to form solid soil, and the liquid-oil phase is then fully mixed and flocculated with a demulsifier, and then sent to the solid-liquid-liquid three-phase separation Oil phase, water phase and solid phase residue; the water phase is waste liquid;

[0029] (3) Oil phase treatment: the oil phase is input to the oil storage tank;

[0030] (4) Water phase treatment: after the water phase is added with flocculant, it is filtered through ceramic rod, activated carbon, and reverse osmosis device in sequence, and the effl...

Embodiment 2

[0043] The difference between the method of comprehensively treating oilfield waste by using physical, chemical and biochemical technologies in this embodiment and that of Embodiment 1 is that:

[0044] Activated carbon is 20~100 meshes in the step (4) water phase treatment of the present embodiment; The inoculum amount of high temperature resistant Bacillus subtilis is 5g / m in the step (5) 3 , the temperature of aerobic fermentation is 50°C, and the fermentation time is 30 days. After the fermentation is completed, flatten the heat to reduce the temperature to 28°C; when cultivating earthworms, the amount of earthworms is 450 / m 3 ; The heat preservation and moisturizing is to keep the temperature at 30°C and keep the humidity at 60%; the addition of the mycorrhizae from the branches is 2g / m 3 .

Embodiment 3

[0046] The difference between the method of comprehensively treating oilfield waste by using physical, chemical and biochemical technologies in this embodiment and that of Embodiment 1 is that:

[0047] Activated carbon is 100~200 meshes in the step (4) water phase treatment of the present embodiment; In the step (5), the inoculum amount of the high-temperature-resistant Bacillus subtilis is 5g / m 3 , the temperature of aerobic fermentation is 60°C, and the fermentation time is 30 days. After the fermentation is completed, flatten the heat to reduce the temperature to 26°C; when cultivating earthworms, the amount of earthworms is 500 / m 3 ; The heat preservation and moisturizing is to keep the temperature at 25°C and keep the humidity at 60%; the addition of the mycorrhizae from the branches is 2g / m3 .

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Abstract

The invention relates to treatment and utilization technologies of oil field waste, in particular to a method for comprehensively treating oil field waste by using physical-chemical and biochemical technologies. The method aims to provide a low-cost and convenient operation method for comprehensively treating oil field waste by using physical-chemical and biochemical technologies. The method comprises the following steps of: solid-liquid separation; three-phase separation; oil phase treatment; water phase treatment; solid-phase residue treatment. The method solves the problem of oil field waste disposal and utilization, utilizes separation treatment to separate water, mud and waste oil, disposes a lot of oil field waste by using intergrowth of microorganism, earthworm, mycorrhiza and plant, and meets the requirements of large-scale production; The pollution problem of oil field waste is solved, and the practical requirements of oil field operation and environmental protection are met.

Description

technical field [0001] The invention relates to the treatment and utilization technology of oilfield waste, in particular to a comprehensive treatment and utilization method for oilfield waste. Background technique [0002] Oilfield waste usually refers to cuttings, water-based mud and oil-based mud produced during drilling, oily sludge and sediment produced during oil production and oil well operations, crude oil-contaminated soil, and crude oil during storage in tanks bottom deposition etc. The traditional disposal method is to discharge it into the mud sewage pool at the well site, and then fill it on the spot and cover it with fresh soil. These simple and intuitive treatment methods have great harm to people's life, ecological environment, and drinking water sources. At present, drilling waste The sludge generated from liquid treatment has been listed as hazardous waste, and the treatment of oilfield waste is imperative. Contents of the invention [0003] The inventi...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F11/02C02F103/10
CPCC02F1/001C02F1/281C02F1/283C02F1/38C02F1/441C02F1/52C02F9/00C02F11/02C02F2103/10
Inventor 陈淡宁陈洪艳陈星
Owner 陈淡宁
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