Treatment device and treatment method for oilfield produced water

A technology of treatment device and treatment method, which is applied in the treatment of oilfield produced water and the field of treatment equipment for oilfield produced water, can solve the problems of easy corrosion and low treatment efficiency, achieve corrosion resistance, high treatment rate, and improve cohesion Effect

Pending Publication Date: 2020-12-01
SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The first object of the present invention is to provide a treatment device for oilfield produced water, which solves the problems of low treatment efficiency and easy corrosion of existing treatment devices

Method used

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  • Treatment device and treatment method for oilfield produced water
  • Treatment device and treatment method for oilfield produced water
  • Treatment device and treatment method for oilfield produced water

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The present invention is a treatment device for oilfield produced water, such as figure 1 As shown, including unloading pool 1, unloading pool 1 is connected with regulating pool 2, vertical degreasing tank 3, ozone air flotation device 4, intermediate water tank 5, two-stage filter 6 and clean water tank 7 successively, regulating pool 2, The vertical oil removal tank 3 and the ozone air flotation device 4 are respectively connected with an oil storage tank 8, and the adjustment tank 2, the vertical oil removal tank 3, the ozone air flotation device 4, and the intermediate water tank 5 are respectively connected with a sludge tank 9; A lift pump is set in the pool 1, a lift pump is set in the regulating tank 2, and the vertical degreasing tank 3 and the ozone flotation device 4 are connected through a pipeline mixer.

[0033] Such as...

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Abstract

The invention discloses a treatment device for oilfield produced water. The device comprises a water discharge pool, the water discharge tank is sequentially communicated with a regulating tank, a vertical oil removal tank, an ozone flotation device, a middle water tank, a two-stage filter and a clear water tank, the regulating tank, the vertical oil removal tank and the ozone flotation device arerespectively connected with an oil storage tank, and the regulating tank, the vertical oil removal tank, the ozone flotation device and the middle water tank are connected with a sludge tank respectively. The problems that an existing treatment device is low in treatment efficiency and prone to corrosion are solved, the treatment method adopting the device is easy to operate and good in treatmenteffect, and produced water can reach the standard of reinjection or discharge.

Description

technical field [0001] The invention belongs to the technical field of oilfield sewage treatment, and in particular relates to a treatment device for oilfield produced water, and also relates to a treatment method for oilfield produced water. Background technique [0002] Oilfield produced water is also called oilfield sewage. In oilfield production, most of the oilfield produced water is reinjected into the formation after treatment, and only a small amount is discharged. At present, the treatment methods of oilfield produced water are mainly divided into three parts: pretreatment section, oil removal section and filtration section; among them, the pretreatment section mainly adopts oil separation, settlement and adjustment; the oil removal section mainly uses gathering degreaser, cyclone flow device and air flotation device; the filter section mainly uses walnut shells, fiber balls and fine filters. However, there are still some problems in the treatment process: (1) Due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/32C02F103/10
CPCC02F9/00C02F2103/10C02F1/24C02F1/40C02F1/001C02F1/66C02F1/78C02F2101/32C02F1/5236C02F1/56
Inventor 于优城惠晓伟
Owner SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
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