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Descaling equipment and descaling systems

An equipment and scaling technology, which is applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of incomplete descaling, short anti-scaling time, and inconvenient dosing.

Inactive Publication Date: 2015-12-09
YANGTZE UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are three main methods for scaling treatment in gathering and transportation pipelines and equipment: chemical descaling method, that is, adding chemical agents to gathering and transportation pipelines and equipment, so that no scaling will occur during the transportation of crude oil production fluid, and its cost It is relatively high, it is inconvenient to dosing, and it cannot achieve the purpose of complete descaling. It only prevents scaling in the gathering pipelines and equipment, but the subsequent process equipment and pipelines will also scale. It is necessary to stop production regularly for pipelines and equipment Cleaning; magnetic anti-scaling method and electronic anti-scaling method, the anti-scaling time is short, and it is not a complete descaling, but the scaling site is moved to the joint station at the end of the process, the crude oil production fluid will still be transported for a certain distance Scaling, eventually requires regular chemical cleaning, affecting oil recovery operations

Method used

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  • Descaling equipment and descaling systems
  • Descaling equipment and descaling systems

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Embodiment approach

[0063] As a preferred embodiment of the present invention, the diameter of the through hole 6 is 45mm-80mm. The through hole 6 can adopt various shapes and sizes, and the through hole 6 with a diameter of 45 mm to 80 mm can keep the flow rate of the liquid in the descaling unit 2 within a predetermined range and improve the descaling effect.

[0064] The corrugated plate 5 can be made of various materials that do not react chemically with the liquid. Preferably, the corrugated plate 5 is made of glass fiber reinforced plastic or stainless steel. FRP or stainless steel has good corrosion resistance, is not easy to be corroded, and its composition is stable, and will not chemically react with liquid, so it is suitable for making the corrugated plate 5 for descaling.

[0065] Such as figure 1 and image 3 As shown, in order to facilitate the installation of the corrugated plates 5, preferably, the fouling unit 2 further includes a frame 7, and the multiple corrugated plates 5 a...

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Abstract

The invention discloses a descaling method which comprises the step that a liquid flows through a scaling unit (2) with the contact area of 10-30m<2> at a flow rate of 0.001-0.004m / s. The invention further discloses descaling equipment and a descaling system. The descaling method can descale the liquids (particularly wet crude produced liquids), is low in cost and convenient to operate, and does not affect normal oil extraction operation.

Description

technical field [0001] The invention relates to the field of oil and gas gathering and transportation, in particular to a descaling device and a descaling system for descaling crude oil production fluid. Background technique [0002] In the oil production system, the high-water crude oil production fluid produced from the oil well needs to be transported through a long pipeline. Since the water-containing crude oil production fluid contains various ionic components, the crude oil production fluid is transported through a single well pipeline During the process of transporting to the combined station on the ground after reaching the metering station, due to changes in thermodynamic parameters such as external temperature and pressure, the scale-forming ions (such as Ca 2+ , Mg 2+ 、Ba 2+ 、Sr 2+ , CO 3 2— , SO 4 2— etc.) are precipitated to form barium strontium sulfate, calcium magnesium carbonate and other substances to scale, which makes the gathering and transportati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G29/00
Inventor 尹先清范凤英付家新吴龙海陈武韩炜曹方启张子玉何理
Owner YANGTZE UNIVERSITY
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