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Friction-reducing agent for natural-gas transfer pipeline and its production

A technology for transportation pipelines and manufacturing methods, applied in pipeline protection, pipeline anticorrosion/rust protection, pipes/pipe joints/pipe fittings, etc., can solve the problems of low volatility, increase gas transmission volume, and reduce natural gas transmission resistance, etc., to achieve Low volatility, increased gas delivery, and significant drag reduction

Active Publication Date: 2007-11-21
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to avoid the deficiencies in the above-mentioned prior art and provide an online natural gas transmission pipeline that can reduce the resistance of natural gas transmission, increase the gas transmission volume, have low volatility, do not pollute natural gas, and Drag reducer for natural gas pipeline with corrosion inhibition effect on steel pipe and manufacturing method

Method used

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Embodiment Construction

[0014] The manufacture method of the drag reducer for natural gas pipeline of the present invention is characterized in that 0.45 parts by weight of oleic acid amide fully dissolved in 1 part by weight of castor oil is fully mixed in advance with an equal part of xylene solvent, and it is carried out The xylene solvent was distilled off under reduced pressure, and then 0.12 parts by weight of liquid paraffin was added and fully mixed.

[0015] The xylene solvent used in the manufacture of the drag reducer has the same amount by weight as the oleic acid amide used, and the raw materials used are commercially available.

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Abstract

A friction reducing agent for natural-gas transfer pipeline and its production are disclosed. The process is carried out by dissolving oleate amide by dimethyl benzene solvent, adding into castor, mixing, decompress distilling to remove dimethyl benzene solvent, adding into liquefied paraffin and mixing. It forms into smooth friction-reducing liquefied film layer of transfer pipeline internal wall in natural transfer pipeline and decreases friction resistance and transfer pressure drop, has less energy loss and increases gas output.

Description

technical field [0001] The invention relates to a drag-reducing agent for a natural gas transmission pipeline and a manufacturing method thereof, which can form a drag-reducing liquid film on the inner wall of the pipeline to reduce the transmission resistance of natural gas and increase the gas transmission volume. Background technique [0002] In the existing natural gas pipeline, the frictional resistance between the natural gas and the steel inner wall of the pipeline leads to a large drop in the pressure of natural gas transmission. Therefore, pump stations are added along the natural gas pipeline to compensate for the pressure drop. Newly built natural gas pipelines adopt the method of coating the inner wall of the pipeline with a drag-reducing coating to reduce the drop in natural gas delivery pressure, but the drag-reducing coating is easily damaged, which affects the drag-reducing effect, and this technology cannot be applied to in-service pipelines. Contents of th...

Claims

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Application Information

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IPC IPC(8): C09D191/00F16L58/04C09D191/06
Inventor 张其滨范云鹏林竹韩文礼张莉
Owner BC P INC CHINA NAT PETROLEUM CORP
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