Device for recycling mud and diesel oil base from waste oil-base mud

Abstract

The invention discloses a device for recycling mud and a diesel oil base from waste oil-base mud and belongs to the technical field of processing of pollutants generated in the process of oil and gas drilling. By the adoption of the device for recycling the mud and the diesel oil base from the waste oil-base mud, the oil-base mud is recycled from oil-containing refuse, such as the waste oil-base mud and drilling cuttings containing oil, generated in the oil-base mud drilling process through the centrifugal filtration-centrifugal sedimentation coupling technology, and the diesel oil base is recycled from a separated low-oil-content solid phase through a leaching-evaporation separating device. The recycled oil-base mud can be reused in drilling engineering. The recycled diesel oil base can be used for re-preparation of the oil base mud. According to the device for recycling the mud and the diesel oil base from the waste oil-base mud, resource recycling and harmless treatment of the oil-containing refuse generated in the oil-base mud drilling process are achieved, cost is low, no secondary pollution is caused, resources can be recycled, operation is easy, the oil-base mud and the diesel oil base are recycled from the oil-containing refuge as much as possible, and the recycled oil-based mud can be reused.

Description

technical field [0001] The invention relates to the treatment technology of pollutants in the oil and gas drilling process, in particular to a process for recovering the oil-based mud and diesel oil that can be reused in drilling engineering from the waste oil-based mud and oily drill cuttings in the process of diesel-based mud drilling Recovery device. Background technique [0002] Oil-based mud drilling has special advantages in complex formations or when special drilling is required or pipe sticking accidents occur. However, during its use, solid waste such as waste oil-based mud and oily drilling cuttings is produced. During oil-based mud drilling, waste oil-based mud and oily drilling cuttings are separated by vibrating screens and enter the waste mud pool as oily waste. The main components include liquid-phase diesel oil, solid-phase cuttings, barite powder, banclay powder and other drilling additives. There are strict restrictions and strict requirements of laws and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: aim at the above existing problems, to provide a kind of waste oil-based mud mud and diesel-based recovery equipment, mainly to solve the technical problems of resource recovery and harmless treatment of oily waste generated in the oil-based mud drilling process , which is low in cost, does not cause secondary pollution, can recycle resources, and is easy to operate. It can recover the oil-based mud and diesel oil in the oily waste as much as possible, and the performance of the recovered oil-based mud can meet the reuse requirements.

Images