A liquid preparation tank for removing iron and sterilizing oilfield sewage

An oilfield sewage and liquid dispensing tank technology, applied in water/sewage treatment, reduced water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of complex process, high cost, low sterilization efficiency, etc., and achieve a simple operation process. , Low labor intensity, complete sterilization effect

Active Publication Date: 2018-06-01
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This sewage treatment method is not only difficult to operate and control, the process is complicated, but also the cost is high and the labor intensity of the workers is high.
Chinese patent CN 203922896 U "A Sewage Iron Removal and Sterilization Device" provides a simple and easy oil field sewage iron removal and sterilization device, but the main problems are that the sterilization efficiency is low and the iron removal effect is not ideal

Method used

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  • A liquid preparation tank for removing iron and sterilizing oilfield sewage

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Embodiment

[0030] This embodiment provides a liquid mixing tank for removing iron and sterilizing oil field sewage (the schematic diagram of the section is as follows figure 1 shown), the liquid distribution tank includes: tank body 1, hook 2, card slot 3, protective frame 4, rotating shaft 5, motor 6, straight stirring blade 7, oxygen pump 8, hose with mesh 9, distribution Liquid port 10;

[0031] in,

[0032] The tank body 1 is a square;

[0033] The protective frame 4 includes four horizontal frames, which are welded to the inner wall of the tank body 1 in a well-shaped arrangement. The protective frame 4 is provided with an agitator and a protective steel mesh. The agitator includes a rotating shaft 5, a motor 6 and a flat surface. Straight stirring blade 7; on the protective steel mesh, a liquid distribution port 10 is provided near the inner wall of the tank;

[0034] There are 12 card slots 3 welded in the tank body 1, and each surface of the tank body has 3 card slots respecti...

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Abstract

The invention provides a deironing and sterilization liquid distributing tank for oilfield sewage. The liquid distributing tank comprises a tank body, clamping grooves, a protection frame, a stirrer, an oxygen pump and a hose with screening holes. The tank body is open. The protection frame is arranged in the tank body and used for supporting the stirrer. The oxygen pump is arranged outside the tank body and used for supplying oxygen containing gas into the tank body. The exhaust end of the oxygen pump penetrates through the tank body and is communicated with one end of the hose with the screening holes. The clamping grooves are formed in the inner circumferential wall of the tank body and used for fixing the hose with the screening holes. The hose with the screening holes can be fixed to the inner circumferential wall of the tank body through all the clamping grooves, or is fixed to the inner circumferential wall of the tank body only through part of the clamping grooves. The liquid distributing tank has the advantages of being simple, practical, low in cost, safe, environmentally friendly, simple in operation process, low in labor intensity, thorough in sterilization, more remarkable in effect and the like, no additional bactericide needs to be added, and the problem about the compatibility of a sewage treatment agent and a polymer is avoided.

Description

technical field [0001] The invention belongs to the technical field of oilfield sewage treatment, and in particular relates to a liquid preparation tank for removing iron and sterilizing oilfield sewage. Background technique [0002] In the construction process of flood control, profile control, water plugging, polymer flooding and chemical flooding, from the perspective of saving fresh water resources and environmental protection, usually directly use oilfield produced sewage to prepare polymers. However, oilfield wastewater has high salinity, high content of sulfate bacteria, Fe 2+ When the content is high, when it is directly used to formulate polymers, it is easy to cause damage to polymer molecules, causing serious curling of polymer molecules and degrading by bacteria, especially Fe 2+ The oxidation-reduction degradation of polymer solution leads to very low viscosity of polymer solution, and the economic benefits of tertiary oil recovery are poor. In order to solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72C02F1/70C02F1/50C02F1/64B01F7/04C02F103/10
Inventor 陈小凯唐莹莹于学勇惠晓永王孝通黄祥光王馨竹刘靖炜袁庆佳王禹王楠唐志春曹金凤孙铭泽张挺
Owner PETROCHINA CO LTD
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