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Scale inhibitor applied in petroleum processing course and preparation method of scale inhibitor

A processing process and a technology of anti-scaling agent, applied in the field of anti-scaling agent and its preparation, can solve the problems of lowering oil quality, scaling of oil wells and processing equipment, low scale-inhibiting rate of anti-scaling agent, etc., so as to improve the scale-inhibiting rate Effect

Inactive Publication Date: 2015-04-01
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of petroleum processing, due to the change of a series of factors such as pressure and temperature, it often causes scaling problems in oil well shafts and processing equipment, which brings great harm to production
Due to the influence of scaling, a series of problems such as the decrease of oil production and the decrease of oil quality are caused
At present, the periodic addition of chemical antiscalants is usually used to solve this problem, but there are deficiencies, such as: the low scale inhibition rate of antiscalants causes frequent cleaning of scales

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An antiscaling agent in the process of petroleum processing, which is prepared according to the following ratio of raw materials by weight: 35 parts of octyl acetate, 25 parts of butyl acetate, 12 parts of triethyl phosphate, 12 parts of triisooctyl phosphate, Dioctyl succinate 12 parts, sodium chloride 8 parts, ammonium nitrate 8 parts, citric acid 8 parts, sodium pyrophosphate 12 parts, water 30 parts.

[0019] A preparation method of an antiscalant in petroleum processing, comprising the following steps:

[0020] (1) Put sodium chloride, ammonium nitrate, citric acid, sodium pyrophosphate and water in a reaction kettle, and stir for 36 minutes at 66°C under sealed conditions;

[0021] (2) Put octyl acetate, butyl acetate, triethyl phosphate, tri-isooctyl phosphate and dioctyl succinate in a container, stir them evenly with magnetic force, and the reaction temperature is 48°C;

[0022] (3) Put the solution obtained in step (2) into the high-level tank...

Embodiment 2

[0025] An antiscaling agent in the process of petroleum processing, which is prepared according to the following ratio of raw materials by weight: 40 parts of octyl acetate, 30 parts of butyl acetate, 15 parts of triethyl phosphate, 15 parts of triisooctyl phosphate, Dioctyl succinate 15 parts, sodium chloride 11 parts, ammonium nitrate 10 parts, citric acid 10 parts, sodium pyrophosphate 15 parts, water 35 parts.

[0026] A preparation method of an antiscalant in petroleum processing, comprising the following steps:

[0027] (1) Put sodium chloride, ammonium nitrate, citric acid, sodium pyrophosphate and water in a reaction kettle, and stir for 40 minutes under sealed conditions at 72°C;

[0028] (2) Put octyl acetate, butyl acetate, triethyl phosphate, tri-isooctyl phosphate and dioctyl succinate in a container, stir them evenly with magnetic force, and the reaction temperature is 52°C;

[0029] (3) Put the solution obtained in step (2) into the high-level t...

Embodiment 3

[0032] An antiscaling agent in the process of petroleum processing, which is prepared according to the following ratio of raw materials by weight: 45 parts of octyl acetate, 35 parts of butyl acetate, 20 parts of triethyl phosphate, 20 parts of triisooctyl phosphate, Dioctyl succinate 20 parts, sodium chloride 14 parts, ammonium nitrate 13 parts, citric acid 13 parts, sodium pyrophosphate 20 parts, water 40 parts.

[0033] A preparation method of an antiscalant in petroleum processing, comprising the following steps:

[0034] (1) Put sodium chloride, ammonium nitrate, citric acid, sodium pyrophosphate and water in a reaction kettle, and stir for 46 minutes under sealed conditions at 77°C;

[0035] (2) Put octyl acetate, butyl acetate, triethyl phosphate, tri-isooctyl phosphate and dioctyl succinate in a container, stir them evenly with magnetic force, and the reaction temperature is 57°C;

[0036] (3) Put the solution obtained in step (2) into the high-level t...

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Abstract

The invention discloses a scale inhibitor applied in a petroleum processing course and a preparation method of the scale inhibitor. The scale inhibitor is prepared from the following raw materials in parts by weight: 35-60 parts of octyl acetate, 25-55 parts of butyl acetate, 12-45 parts of triethyl phosphate, 12-25 parts of tri-iso-octyl phosphate, 12-30 parts of dioctyl succinate, 8-25 parts of sodium chloride, 8-20 parts of ammonium nitrate, 8-20 parts of citric acid, 12-30 parts of sodium pyrophosphate and 30-65 parts of water. The scale inhibitor disclosed by the invention is applicable to the petroleum processing course, and the scale inhibitor is convenient to use, safe, durable, practical and long-acting.

Description

technical field [0001] The invention relates to the technical field of petroleum processing, in particular to an antiscaling agent in petroleum processing and a preparation method thereof. Background technique [0002] In the process of petroleum processing, due to changes in a series of factors such as pressure and temperature, scaling problems often occur in oil well shafts and processing equipment, which brings great harm to production. Due to the influence of scaling, a series of problems such as the decrease of oil production and the decrease of oil quality are caused. At present, the periodic addition of chemical antiscalants is usually used to solve this problem, but there are deficiencies, such as: the low scale inhibition rate of antiscalants causes frequent scale cleaning. Contents of the invention [0003] Technical issues solved: [0004] In order to improve the scale inhibition efficiency of the anti-scaling agent in the petroleum processing process and e...

Claims

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Application Information

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IPC IPC(8): C09K8/52C10G75/00
CPCC09K8/52C10G75/00
Inventor 夏戊君凌云陆赛君金可心陈亮程胜凌天阳陆鼎
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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