Oil sludge recycling system and method

A technology for oil sludge and oil wells, which is applied in the field of oil sludge recovery and utilization systems, can solve the problems of many sludge generation points, time-consuming and laborious collection and transfer process, and a wide range of areas, so as to save processing time and costs, reduce safety and environmental risks, and reduce processing costs Effect

Inactive Publication Date: 2020-09-08
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the scattered oilfield wells and stations, there are many points and wide areas of sludge generation, and the collection and transfer process is time-consuming and laborious. A large amount of sludge will also cause certain risks to the environment.
Moreover, the sludge treatment equipment of the oil sludge treatment plant has a large investment and a single function

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oil sludge recycling system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present invention provides an oil sludge recycling system, comprising a treatment tank, the treatment tank is respectively connected to a mixing pipeline 29 and a hot washing pipeline 24 through an oil discharge pipeline 23, the treatment tank is connected to a heating mechanism, and the mixing pipeline 29 is connected to Crude oil metering transfer station, the hot washing pipeline 24 is connected to the oil well pipeline, and the oil discharge pipeline 23, the mixing pipeline 29 and the hot washing pipeline 24 are all provided with valves.

[0035] The present invention recovers the oil in the oil sludge through the treatment tank, and the recovered oil can enter the crude oil metering transfer station through the oil discharge pipeline 23 through the mixing pipeline 29, and can also pass the oil discharge pipeline 23 through the hot washing pipeline 24 to the oil well or pipeline Perform a hot wash.

[0036] The oil sludge recovery and utilization system provided...

Embodiment 2

[0038] On the basis of Example 1, the present invention provides a sludge recovery and utilization system, the treatment tank includes a settling part 1 and an overflow part 2, and the settling part 1 and the overflow part are separated by an overflow plate 5 Open, the top of the settling part 1 is provided with a filter screen 21, the lower side of the settling part 1 is provided with a waste sludge outlet 22, the oil discharge pipeline 23 communicates with the overflow part 2, and the oil discharge pipeline 23 is provided with There are oil discharge valve 10, centrifugal pump 11 and check valve 12.

[0039]The treatment tank is divided into left and right parts by an overflow plate 5 , namely a settling part 1 and an overflow part 2 . The process of recovering oil is as follows: the oil sludge is poured into or passed through the treatment tank. First, the oil sludge passes through the filter screen 21 arranged above the overflow part 2. The filter screen 21 filters large p...

Embodiment 3

[0042] On the basis of Embodiment 1, the present invention provides a kind of sludge recycling system, the heating mechanism includes a heating furnace 20, a heating furnace water outlet pipeline 30, a heating furnace return water pipeline 31 and a heating coil, the heating coil Set in the treatment tank, the two ends of the heating coil are connected with the heating furnace water outlet pipeline 30 and the heating furnace return water pipeline 31 respectively, and the heating furnace outlet water pipeline 30 is provided with a heating furnace outlet valve 8 and a circulating pump 7 .

[0043] In this embodiment, the existing heating furnace 20 at the well site is used. The hot water in the heating furnace 20 circulates in the coil, on the one hand, the purpose of heating the oil sludge is achieved, and the separation of oil and mud is better realized; After the oil phase is heated, the oil well or pipeline is hot-washed and wax-removed.

[0044] The hot washing pipeline 24 i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an oil sludge recycling system and method. The oil sludge recycling system comprises a treatment tank, the treatment tank is respectively communicated with a mixing pipeline anda thermal washing pipeline respectively through an oil discharge pipeline, the treatment tank is connected to a heating mechanism, and the mixing pipeline is communicated with a crude oil metering transfer station; the thermal washing pipeline is communicated with a casing pipe well washing pipeline and an oil extraction pipe arranged at a wellhead in parallel through pipelines; wherein the casing pipe well washing pipeline is led into a casing pipe, an outlet of the oil extraction pipe is communicated with an oil outlet pipe and a single-quantity pipeline in parallel, the oil outlet pipe ofeach oil well is communicated with the mixing pipeline, and valves are arranged on the thermal washing pipeline, the casing pipe well washing pipeline, the single-quantity pipeline, the mixing pipeline and the oil outlet pipe. Timely recovery treatment of landing crude oil is achieved, the recovery rate reaches 99%, oil sludge does not need to be transferred to an oil sludge treatment plant for unified treatment, the labor intensity of the staff is relieved, the treatment time and cost are saved, and safety and environmental protection risks are reduced. The system provided by the invention not only can recover oil, but also has multiple functions of thermal washing, paraffin removal, dosing and single-quantity operation, and is economical, environment-friendly and practical.

Description

technical field [0001] The invention belongs to the technical field of oil sludge treatment, and in particular relates to an oil sludge recycling system and method. Background technique [0002] Oil sludge is the sludge generated during crude oil extraction, storage, gathering, processing, and crude oil production fluid treatment. This sludge has a high oil content, and direct discharge will cause pollution and waste of resources. [0003] The existing oil sludge recycling methods include pyrolysis, thermal washing and physical and chemical treatment. Among them, physical and chemical treatment is mainly used in oil sludge and oil sands with high oil content. Adding chemicals in the treatment process requires special treatment facilities, and the treatment process is complicated and the cost is high. Moreover, the recovery of oil is not complete, and there are problems of secondary pollutants of waste water and waste residue, which still need further treatment and recovery...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/121C02F11/13E21B43/34E21B36/00
CPCC02F11/121C02F11/13E21B43/34E21B36/00
Inventor 周娟张海玲杨琴同宵李照林朱恒刘宁邱奇姬伟范婧
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap