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Oil-contaminated water process method and mobile processing equipment thereof

A technology for sewage treatment equipment and sewage treatment methods, which is applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, separation methods, etc., can solve problems such as large investment, and achieve convenient movement, good economy, and adaptability Strong effect of impact load capacity

Inactive Publication Date: 2008-12-24
庄凤仪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is necessary to lay a special circulation pipeline for each well, which requires a large investment

Method used

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  • Oil-contaminated water process method and mobile processing equipment thereof
  • Oil-contaminated water process method and mobile processing equipment thereof
  • Oil-contaminated water process method and mobile processing equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, when it is applied to the treatment of flushing fluid of water injection wells in oilfields, the treatment flow is shown in Figure 2 in detail.

[0035] 1. Solid-liquid separation cycle process

[0036] Connect the output of the flushing fluid of the injection well to the input of the water purification vehicle, close the input valves A1, A2, A3, A4, A5 and A6, and the circulation valves B2, B3, B4, B5, B6 and B7, and open the system input Valve D and solid-liquid separation cycle valve B1.

[0037] The well flushing fluid in the water injection well enters the swirl type solid-liquid separator 2 through the system input valve D, basically separates the solids in the well flushing fluid, and enters the vehicle-mounted water tank S through the solid-liquid separation circulation valve B1. The circulating water in the vehicle-mounted water tank S is pressurized by the vehicle-mounted water injection pump P1 and reinjected into the water injection well, then...

Embodiment 2

[0058] Embodiment 2, when it is applied to the treatment of oil field fracturing fluid reverse drainage, the treatment flow is shown in Fig. 3 in detail.

[0059] Fracturing has become one of the main measures to increase production in oilfields and is widely used in various oilfields. Especially in some old oilfield areas and peripheral oilfields. More than 2,500 to 3,000 fracturing operations are carried out every year, and each well requires a large amount of working fluid (fracturing fluid) to create fractures and carry sand during the fracturing process. After the construction work is completed, not only will the damage to the formation caused by fracturing be reduced, but the fracturing fluid (waste fluid) that breaks the gel after the fracture is closed should be flowed back in time, and the average flowback volume accounts for more than 50% of the total fluid volume. The composition of the flowback fracturing waste fluid system is extremely complex. In addition to the...

Embodiment 3

[0065] Embodiment 3, when it is applied to on-site drinking water production in flood-stricken areas, the processing flow is shown in Figure 4 for details.

[0066] This embodiment is different from the processing flow of Embodiment 2 in that:

[0067] Open the input valves D, A1, A2, A3, A4, A5 and A6 of the water purification vehicle, and the system circulation valve B7, close the circulation valves B1, B2, B3, B4, B5 and B6, and the discharge valve A7.

[0068] The vehicle-mounted infusion pump P2 pumps the sewage in the disaster area into the treatment system, and sends it to the swirl type solid-liquid separator 2, and the sequentially connected swirl type oil-water separator 3A, filter material oil suction unit 3B, self-cleaning filter 4A, coarse Filter 4B1, fine filter 4B2 and fine filter 4B3 are processed.

[0069] After the treated water is disinfected, it enters the vehicle-mounted water tank S or the ground water storage tank for on-site drinking.

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Abstract

The invention discloses a three-stage oiliness sewage treatment method which integrates offshore production separation technology and industrial sewage treatment technology and a movable treatment device using the treatment method. The first stage is cyclone separation of removal sediment, the second stage is cyclone separation and filter material adsorption oil of removal oil pollution, the third stage is self-cleaning and grading purification and filtration. Firstly the sewage is cyclically treated by the cyclone solid-liquid separation technology, then the oil is cyclically removed, finally the sewage is cyclically filtered. The movable oiliness sewage treatment device comprises a cyclone solid-liquid separator communicated in order with an oil-removal device, a filtration device and a system circulating valve, wherein all the devices are installed on a truck. The method and device of the invention have advantages of simple and reliable technological process, good economy, and strong impact load adaptation ability. The sewage treatment device is installed on the tuck, which is convenient to move, maneuvering and flexible, and is suitable for a plurality of sewage treatment of different occasions.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to the improvement of oily sewage treatment process and treatment equipment in land oilfields, which is suitable for reinjection after treatment of well flushing fluid in water injection wells in oilfields, and can also be used for reverse drainage treatment of fracturing fluids in oilfields After discharge, it can also be applied to on-site drinking water production in flood-stricken areas, as well as emergency treatment of environmental pollution. Background technique [0002] Most of the onshore oil fields rely on water injection to drive oil, and the ratio of oil wells to water wells in the oil fields is about 2:1, that is, two oil production wells need one water injection well. Water injection wells must be cleaned every year, otherwise the oil production rate of production wells will be affected. The way to wash the well is to rinse with clean water, about 200 cubic ...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/40
Inventor 庄凤仪张宝坤庄宪国
Owner 庄凤仪