Oilfield sewage treatment device

Abstract

The invention discloses an oilfield sewage treatment device. The device comprises a sedimentation basin, a water inlet pipe and a filtering net. According to the arrangement of an oil removal device,oil floating on the water surface can be adsorbed and separated, and the problem that oil still exists in the treated sewage because the oil in the sewage cannot be well separated is solved. Accordingto the arrangement of a waste oil recovery unit, the separated oil can be scraped into an inner barrel to be mechanically recovered, and the problem that waste of resources is caused because the separated oil cannot be well and rapidly recovered is solved. According to the arrangement of a cycle treatment device, the sewage can be subjected to repeated cycle treatment, and the problem that the treatment efficiency is low because the treated sewage cannot be subjected to well cycling treatment is solved. According to the arrangement of a flow count drainage device, the drainage amount can be subjected to flow counting, and the problem that the amount of the treated sewage is unclear because the discharged sewage after treatment cannot be subjected to clear flow count treatment is solved.

Description

technical field [0001] The invention relates to the related fields of sewage treatment, in particular to an oilfield sewage treatment device. Background technique [0002] An oil field is the sum of oil and gas reservoirs in the same oil and gas production area under the control of a single geological structure (or formation) factor. A field may have one or more reservoirs. In the same area, oil fields are mainly oil reservoirs, and gas fields are mainly gas reservoirs. The composition of oilfield sewage is relatively complex, and the oil content and the form of oil in water are also different. In most cases, it is often mixed with other wastewater, so Single-handed approaches are often ineffective. [0003] After searching, it was found that the invention of patent No. CN201420655410.5 discloses an oilfield sewage treatment device, including a horizontal centrifuge, a primary separation device, a secondary separation device and a base. The horizontal centrifuge is connect...

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Problems solved by technology

[0013] The present invention provides an oil field sewage treatment device through improvement. Through the installation of the oil removal device, the oil floating on the water surface can be adsorbed and separated, which solves the problem that the oil in the sewage cannot be better separated, resulting in treated sewage There is still the problem of oil in the tank. Through the installation of the waste oil recovery device, the separated oil can be scraped into the inner barrel for mechanical recovery, which solves the problem that the separated oil cannot be recovered better and faster, resulting in waste of resources. Through The setting of the circulation treatment device can recycle and repeatedly treat the sewage, which solves the problem that the untreated sewage cannot be better circulated and causes low treatment efficiency. Through the setting of the flow counting drainage device, the drainage volume can be adjusted Flow counting solves the problem that it is impossible to perform a clearer flow counting process on the discharged sewage after treatment, resulting in an unclear amount of treated sewage

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