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Flowability improver for crude oil and its preparing process

A technology of improver and fluidity, which is applied in the field of crude oil fluidity improver and its preparation, can solve the problem of high cost and achieve the effect of cost reduction, infrastructure investment and oil collection energy consumption

Inactive Publication Date: 2002-10-30
大庆油田九龙实业公司
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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 the problem of high water content oil wells and gathering pipelines for reducing viscosity and preventing wax and high cost

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0008] The present invention will be further described below:

[0009] The components and proportions of the crude oil fluidity improver are as follows in parts by weight: 5-10 parts of polyoxypropylene polyoxyethylene propylene glycol ether, 5-10 parts of polyoxypropylene polyoxyethylene polyethylene polyamine ethyl ether, dodecyl 1-5 parts of sodium benzenesulfonate, 1-5 parts of polyoxypropylene polyoxyethylene resin ether, 1-3 parts of polyoxypropylene polyoxyethylene fatty alcohol ether, 1-3 parts of methanol and 30-50 parts of water.

[0010] The following three options can be adopted for illustration:

[0011] The effect parameters of each scheme are as follows: The preparation method of the crude oil fluidity improver is to mix polyoxypropylene polyoxyethylene propylene glycol ether, polyoxypropylene polyoxyethylene polyethylene polyamine ethyl ether, sodium dodecylbenzene sulfonate, polyoxyethylene The improver is obtained by mixing propylene polyoxyethylene resin ...

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PUM

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Abstract

An improver for the flowability of crude oil in oil well or pipeline is prepared from polyoxyacrylic polyoxyvinyl propane diol ether, polyoxyacrylic polyoxyethene polyvinylpolyamine ether, sodium dodecylphenylsulfonate, poluoxyacrylic polyoxyvinyl resinether, polyoxyacrylic polyoxyvinyl emtrolether, methanol and water through proportional mixing, heating to 50-100 deg.C, stirring for 2 hrs and cooling to 30-40 deg.C.

Description

(1) Technical field: [0001] The invention relates to an oilfield chemical agent used in high water-cut oil wells and gathering and transportation pipelines and a preparation method thereof, belonging to crude oil fluidity improvers and a preparation method thereof. (two) background technology: [0002] At present, the crude oil exploited in Daqing Oilfield has the characteristics of high wax content and high freezing point. Severe wax deposition has always been an important problem in the process of oil gathering, transportation, storage and transportation. Because the temperature of the oil well output fluid in the tubing rises from the bottom of the well to the surface, the temperature keeps dropping. When the temperature is lower than the wax precipitation point of crude oil, paraffin crystals will be precipitated and paraffin crystals will be deposited on the surface of the sucker rod and the inner wall of the tubing. The deposition; and the surface gathering pipeline wa...

Claims

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Application Information

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IPC IPC(8): F17D1/17
Inventor 吴迪张士林池世永史新艾尚军潘恒民
Owner 大庆油田九龙实业公司
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