Offshore oilfield oil-based drilling waste recycling and thermal separation device

Abstract

The invention discloses an offshore oil field oil-based drilling waste recycling thermal separation device. The device comprises a servo motor, a thermal separation bin body, a mixing bin, a second feeding pipe and a rotating shaft, a cover body is fixedly installed on one side of the thermal separation bin body through fastening screws, and a ceramic wear-resisting arc-shaped plate is fixedly installed on the lower portion of the inner wall of the thermal separation bin body. A hole is formed in the middle of one side of the cover body, a second bearing is embedded in the hole, a first bearing is embedded in one side of the inner wall of the thermal separation bin body, the inner wall of the first bearing and the inner wall of the second bearing are fixedly connected with the two ends of a rotating shaft correspondingly, and a hole is formed in the bottom end of the thermal separation bin body and communicates with one end of a second feeding pipe; and the other end of the second feeding pipe communicates with the bottom end of the mixing bin, the top end of the mixing bin communicates with the first feeding pipe, and a liquid level sensing device is embedded in one side of the top end of the mixing bin. The problems that the maintenance cost of a thermal separation device is too high and the feeding amount is difficult to control are solved.

Description

technical field [0001] The invention relates to the technical field of petroleum waste recovery and utilization, in particular to a thermal separation device for recovery and utilization of oil-based drilling waste in offshore oil fields. Background technique [0002] In the past one or two decades, China has attached great importance to marine environmental protection. When using oil-based mud, low-toxic oil-based mud should be used; effective technical measures should be taken to fully separate the drilling cuttings from the mud; the oil-based mud must be recycled and must not be discharged into the sea; the oil content in the drilling cuttings exceeds 15% (weight), it is prohibited to discharge into the sea. Drill cuttings with an oil content of less than 15% (by weight) may be discharged into the sea with the approval of the competent authority of the sea area, but the discharge fee shall be paid. Strict environmental protection laws and regulations and drilling fluid ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a thermal separation device for recycling and utilizing oil-based drilling waste in offshore oilfields, which has the advantages of convenient maintenance and automatic adjustment of the feeding amount, and solves the problems of excessive maintenance cost and difficult control of the feeding amount of the thermal separation device

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