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Method for disposing wastewater from oil field

A technology of oilfield wastewater and treatment method, applied in mining wastewater treatment, water/sewage treatment, flotation water/sewage treatment, etc., to achieve the effect of resource recycling operation, reducing energy consumption, and maintaining stable filtration process

Inactive Publication Date: 2017-01-11
XIAMEN STARMEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this "old three sets" process method has certain effects, there are many problems after treatment.

Method used

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  • Method for disposing wastewater from oil field
  • Method for disposing wastewater from oil field
  • Method for disposing wastewater from oil field

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making an inventive step belong to the protection scope of the present invention.

[0022] The basic process of the oilfield wastewater treatment method described in the present invention is as follows: firstly, the oil production wastewater is passed through the electrocoagulation system, and the petroleum substances in the wastewater are flocculated into agglomerates, and then the wastewater enters the air flotation integrated system for oil-water separation. Reduce the hardness of wastewater to obtain supernatant and bottom sludge. The bottom sludge is filtered through the plate and frame to obta...

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Abstract

The invention discloses a method for disposing wastewater from oil field, comprising the following steps: step 1, removing oil through electro-coagulation system; step 2, separating oil and water through air-floating Integral system; step 3, clarifying to remove impurities through ceramic membrane system; step 4, reverse osmosis desalination system for recovering. The method for disposing wastewater from oil field has the advantages of environmental protection, reduced energy consumption, reduced cost, resources recycling and easy operation, etc.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a method for treating oil field waste water. Background technique [0002] Oilfield wastewater mainly includes crude oil extraction water (also known as oilfield oil production wastewater), drilling wastewater and other types of oily wastewater in stations. There are many ways to treat oilfield wastewater according to factors such as oilfield production and environment. When the oil field needs water injection, the oil field wastewater is treated and reinjected into the formation. At this time, various indicators such as suspended solids and oil in the water must be strictly controlled to prevent it from causing damage to the formation. [0003] Oil production wastewater, also known as oilfield produced water, is the formation water produced together with crude oil in the process of oil production in the oil field. Due to different formations and different oil recovery proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F103/10
CPCY02A20/131C02F9/00C02F1/001C02F1/24C02F1/44C02F1/441C02F1/463C02F1/66C02F2103/10
Inventor 孙洪贵谢炜炫李振峰李霞张松北王威
Owner XIAMEN STARMEM TECH
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