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Solid scale inhibitor and preparation method thereof

A scale inhibitor, solid technology, applied in chemical instruments and methods, earthwork drilling, cleaning appliances, etc., can solve the problems of short drug effect cycle, large manpower, financial resources, increase production cost, etc., and reduce the number of fillings. , High anti-scaling rate and anti-scaling effect

Inactive Publication Date: 2017-07-07
龚彩萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These filling methods can all have the effect of anti-scaling, but they all have the characteristics of continuous filling and short drug effect cycle, thus requiring a lot of manpower and financial resources, thus increasing the production cost

Method used

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  • Solid scale inhibitor and preparation method thereof
  • Solid scale inhibitor and preparation method thereof

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Embodiment 1

[0017] Solid antiscaling agent, the composition is as follows:

[0018] Including anti-scaling main agent and cementing agent, the ratio of anti-scaling main agent and cementing agent is 1:1; wherein the anti-scaling main agent includes by weight: 40 parts of hydroxyethylene diphosphonic acid, 40 parts of polyol phosphate, 3 parts of sodium hexametaphosphate, 7 parts of sodium molybdate; the cementing agent includes by weight: 5 parts of alum, 25 parts of epoxy resin, 8 parts of polyamide, 13 parts of epoxy thinner, and 18 parts of silane coupling agent.

[0019] Wherein, the preparation of the silane coupling agent comprises the following process: first, metal terephthalate and calcium oxide are added together at a speed of stirring tank (2000 revolutions / min) and stirred for 5 minutes, then chlorinated paraffin is added to mix, and the mixture is mixed at 2000 revolutions. Stir at a speed of 10 min at a speed of 2000 rpm for 10 min, then add bis(triethoxysilylpropyl) disulfi...

Embodiment 2

[0025] Solid antiscaling agent, the composition is as follows:

[0026] Including anti-scaling main agent and cementing agent, the ratio of anti-scaling main agent and cementing agent is 1:1; wherein the anti-scaling main agent includes by weight: 35 parts of hydroxyethylene diphosphonic acid, 30 parts of polyol phosphate, 2 parts of sodium hexametaphosphate, 6 parts of sodium molybdate; cementing agent includes by weight: 5 parts of alum, 20-30 parts of epoxy resin, 7 parts of polyamide, 13 parts of epoxy diluent, 19 parts of silane coupling agent .

[0027] Wherein, the making of silane coupling agent comprises the following process: first, metal terephthalate and calcium oxide are added together at a speed of stirring tank (2000 rpm / min) and stirred for 6 minutes, then chlorinated paraffin is added to mix, and then mixed with 2000 rpm Stir at a speed of 10 min at a speed of 2000 rpm for 10 min, then add bis(triethoxysilylpropyl) disulfide (Si75) at a constant speed, contin...

Embodiment 3

[0033] Solid antiscaling agent, the composition is as follows:

[0034] Including anti-scaling main agent and cementing agent, the ratio of anti-scaling main agent and cementing agent is 1:1; wherein the anti-scaling main agent includes by weight: 44 parts of hydroxyethylene diphosphonic acid, 37 parts of polyol phosphate, 3.5 parts of sodium hexametaphosphate, 7 parts of sodium molybdate; the cementing agent includes by weight: 3.5 parts of alum, 23 parts of epoxy resin, 8 parts of polyamide, 14 parts of epoxy diluent, and 19 parts of silane coupling agent.

[0035] Wherein, the preparation of the silane coupling agent comprises the following process: first, metal terephthalate and calcium oxide are added together at a speed of stirring tank (2000 revolutions / min) and stirred for 5 minutes, then chlorinated paraffin is added to mix, and the mixture is mixed at 2000 revolutions. Stir at a speed of 15 min at a speed of 2000 rpm for 15 min, then add bis(triethoxysilylpropyl) dis...

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Abstract

The invention discloses a solid scale inhibitor and a preparation method thereof. The solid scale inhibitor comprises a main scale inhibitor and a cementing agent, the proportion of the main scale inhibitor to the cementing agent is 1:1, wherein the main scale inhibitor comprises, by weight, 35-50 parts of 1-Hydroxyethylidene-1,1-diphosphonic acid, 30-45 parts of polyhydric alcohol phosphate ester, 1-5 parts of sodium hexametaphosphate and 5-10 parts of sodium molybdate; the cementing agent comprises, by weight, 3-5 parts of alum, 20-30 parts of epoxy resin, 7-10 parts of polyamide, 13-15 parts of epoxy diluent and 17-20 parts of silane coupling agenta. Thus, after the solid scale inhibitor is in use, the cycle of agent efficacy release is long, the antiscale rate is high, the scaling on devices, pipelines and the like can be prevented in the petroleum processing process, the number of times of filling is reduced, and therefore a continuous production cycle of petroleum processing devices is increased, the manpower and financial resource input is reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to an antiscaling agent in petroleum processing, in particular to a solid antiscaling agent and a preparation method thereof. Background technique [0002] The scaling of oilfield water is similar to that of crude oil, and is an inevitable phenomenon in the production process of oilfields. Scaling of petroleum processing equipment and pipelines has always been a major technical problem in the crude oil processing process. Due to scaling of equipment and pipelines, it will seriously affect the long-term operation and safe production of the device, and bring many hazards to production. In order to solve this problem, in recent decades, it is mainly used to add anti-scaling agents to the corresponding formations, equipment and pipelines. [0003] At present, the commonly used antiscaling agents are mostly liquid antiscaling agents. The traditional method is to directly inject the liquid antiscaling agent, or dry the liquid antiscali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/52E21B37/06
CPCC09K8/52E21B37/06
Inventor 龚彩萍
Owner 龚彩萍
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