Skid-mounted device for treating oil field fractured and acidized wastewater and treatment method

An oil field fracturing and wastewater treatment technology, applied in mining wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. and other problems, to achieve the effect of small footprint, compact layout and strong applicability

Inactive Publication Date: 2015-12-02
天津市振津石油天然气工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the re-injection treatment process basically adopts the fixed station type, and the fracturing and acidification wastewater is transported from several miles or even hundreds of miles to the fixed station for centralized storage and treatment, a

Method used

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  • Skid-mounted device for treating oil field fractured and acidized wastewater and treatment method
  • Skid-mounted device for treating oil field fractured and acidized wastewater and treatment method
  • Skid-mounted device for treating oil field fractured and acidized wastewater and treatment method

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[0028] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0029] Such as figure 1 As shown, the skid-mounted device is divided into a primary air flotation skid unit (1), a micro-electrolysis-secondary air flotation skid unit (2) and a filter skid unit (3) according to the process flow.

[0030] As shown in Figure 2, the equipment of the primary air flotation skid unit (1) includes a lift pump (1-1), a pipeline mixer (1-2), an air flotation tank (1-3), and a dissolved air pump (1-4) , Scum tank (1-5), drug A dosing barrel (1-6), drug B dosing barrel (1-7), drug C dosing barrel (1-8), drug A metering pump (1- 9). Medicine B metering pump (1-10) and medicine C metering pump (1-11). One side of the skid is based on the medicine A metering pump (1-9), and the medicine B metering pump (1-10), the medicine C metering pump (1-11), the lifting pump (1-1) and the solvent are arranged in sequence. Air pump (1-4). The other sid...

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Abstract

The invention relates to a skid-mounted device for treating oil field fractured and acidized wastewater and a treatment method. The skid-mounted device is composed of three skid units including a primary air flotation skid unit, a microelectrolysis-secondary air flotation skid unit and a filtering skid unit. Facilities related to all the treatment skid units are fixed together with a platform through steel structures; the facilities are connected through pipelines with different specifications according to a process flow; and relevant instruments and control systems are integrated on a skid. As a whole, a water outlet of the primary air flotation skid unit is connected with a water inlet of the microelectrolysis-secondary air flotation skid unit; a water outlet of the microelectrolysis-secondary air flotation skid unit is connected with a water inlet of the filtering skid unit; and fast joints are used as joints and are connected through steel pipes or hoses. The skid-mounted device is capable of forming the skid as a whole, meeting different requirements of vehicle-mounted mobile operation and site setting treatment and effectively treating and recycling the fractured and acidized wastewater, compact in layout, small in floor area, high in treatment efficiency and stable in operation; and all the treatment skid units are high in site layout flexibility.

Description

technical field [0001] The invention belongs to the technical field of oilfield wastewater treatment, and in particular relates to a skid-mounted device and a treatment method for oilfield fracturing and acidification wastewater treatment. Background technique [0002] Fracturing and acidizing wastewater mainly refers to the flowback fluid produced during oilfield fracturing and acidizing operations, and its composition is closely related to the formula of fracturing fluid and acidizing fluid and the quality of formation water. Due to the different formations where the oil reservoirs are located, the water quality and composition of formation water are quite different. Therefore, the flowback fluid that is returned to the ground after fracturing and acidizing operations not only contains various chemical substances added to the fracturing fluid and acidizing fluid. , also contains a small amount of oil, formation water and components in the oil layer. It belongs to oilfield ...

Claims

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Application Information

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IPC IPC(8): C02F9/06C02F103/10
Inventor 钱哨唐思王文波刘彪武树霞张洪超
Owner 天津市振津石油天然气工程有限公司
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