An oilfield produced water in-situ treatment device

Through integrated design and intelligent control, the problems of complex structure, large size and low efficiency of produced water treatment equipment in offshore oil extraction have been solved, achieving efficient and safe produced water treatment, which is suitable for use on offshore platforms and on land.

CN224450369UActive Publication Date: 2026-07-03CHINA PETROLEUM & CHEMICAL CORP +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2025-08-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing produced water treatment equipment has problems such as complex structure, large size, large space occupation, low treatment efficiency and difficult equipment maintenance in offshore oil extraction, which makes it difficult to meet the needs of narrow space on offshore platforms.

Method used

The integrated design combines the inlet cylinder, outlet cylinder, and sludge discharge cylinder into a single unit, separated from top to bottom by a partition. It is equipped with a high-efficiency corrugated plate coalescer and an intelligent control system, which, combined with a water quality analyzer, enables automated operation, simplifies the equipment structure, and improves processing efficiency.

Benefits of technology

It reduces the manufacturing cost and maintenance difficulty of the equipment, improves the processing efficiency, ensures that the water quality meets the standards, is suitable for the narrow space of offshore platforms, reduces the footprint, and improves the stability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224450369U_ABST
    Figure CN224450369U_ABST
Patent Text Reader

Abstract

The utility model relates to an oilfield produced water in-situ treatment device, which is provided with a tank body, a liquid inlet cylinder provided with a breathing hole, a water outlet cylinder and a sludge discharge cylinder, the cylinder bodies are not connected with each other and are vertically separated in sequence from top to bottom by a partition plate and are installed at the central position of the tank body, a corrugated plate coalescer installed in the tank body is fixed below a water distribution pipe fitting, the water distribution pipe fitting provided with a produced water spray head and a liquid inlet pipeline connected with a liquid inlet gate valve outside the tank body are communicated with the liquid inlet cylinder, a water collecting pipe fitting provided with a water suction pipe opening and a water outlet pipeline connected with a water outlet regulating valve outside the tank body are communicated with the water outlet cylinder, and a sludge discharge pipe fitting provided with a sludge suction pipe opening and a sludge discharge pipeline connected with a sludge discharge on-off valve outside the tank body are communicated with the sludge discharge cylinder. The device adopts an integrated design concept, greatly reduces the number of connecting pieces, and improves the overall stability and reliability of the equipment. The device can be intelligently controlled by a PLC in a gathering and transportation control cabinet in a well site, and manual intervention is reduced.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Reaction and settlement device for treating water produced from oil field

    CN102701347B

  • Oilfield produced water treatment device

    CN217103311U