Portable oilfield oil sludge purifying treatment and recovery device and method

Abstract

The invention relates to a portable oilfield oil sludge purifying treatment and recovery device and method. The invention mainly solves the problems of large occupied area, high transportation cost and environment pollution in the existing oilfield oil sludge piled storage. The invention is characterized in that the device comprises a pretreatment tank (1), an advanced treatment tank (2), an oil water tank jimmy (3), a centrifugal machine (4) and a belt filter (5), wherein a first feed pipe (1-10) of the pretreatment tank (1) is connected with a hopper-type sludge lifter (6); the outlet of an oil collector (1-6) is connected with an oil tank in the oil water tank jimmy (3); a second discharge pipe (1-4) is connected with the advanced treatment tank (2); and the discharge port of the advanced treatment tank (2) is respectively connected with the centrifugal machine (4) and the belt filter (5) through pipelines. After the oil sludge is treated by the device and method, water can be recycled, silt can be covered on soil and returned to the field, and crude oil can be recovered, thereby thoroughly solving the problem of pollution caused by oilfield oil sludge.

Description

technical field [0001] The invention relates to the field of oil fields, in particular to a skid-mounted oilfield sludge purification treatment recovery device and method. Background technique [0002] At present, in the petroleum industry, a large amount of oily mud and sand will be produced in the process of crude oil dehydration, well washing and oil transportation. Serious pollution of water and soil. At present, most oilfields at home and abroad use the method of building sludge pools to accumulate and store the sludge produced in production, which cannot purify the sludge. This treatment method occupies a large area and has high transportation costs. It will cause secondary pollution to the surrounding environment. Contents of the invention [0003] In order to overcome the shortcomings of the existing oilfield sludge, such as large floor space, high transportation costs, and environmental pollution, the present invention provides a skid-mounted oilfield sludge pur...

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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing oilfield sludge, such as large floor space, high transportation costs, and environmental pollution, the present invention provides a skid-mounted oilfield sludge purification treatment recovery device and method, which is used for sludge After treatment, the water can be recycled and reused, the mud and sand can be covered with soil and returned to the field, and the crude oil can be recovered, which can completely solve the pollution problem caused by oilfield sludge

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