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Acidifying corrosion inhibitor for formation acidification blockage removal and preparation method thereof

A technology for acidizing corrosion inhibitors and formations, applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc., can solve the problems of high corrosion inhibitor cost and low corrosion inhibition rate, and achieve high corrosion inhibition effect. , good effect, less dosage effect

Pending Publication Date: 2022-05-27
沧州中润化学助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the current application of corrosion inhibitors has the problems of high cost and low corrosion inhibition rate, so it is necessary to further develop more efficient corrosion inhibitors

Method used

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  • Acidifying corrosion inhibitor for formation acidification blockage removal and preparation method thereof
  • Acidifying corrosion inhibitor for formation acidification blockage removal and preparation method thereof
  • Acidifying corrosion inhibitor for formation acidification blockage removal and preparation method thereof

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Embodiment 1

[0030] as Figure 1 As shown, the present invention provides an acidification inhibitor for formation acid deblocking, compatibility with formation deblocking agent to play a role in efficient acidification corrosion inhibition. Acidification inhibitor of the present invention includes components of the following weight, 36 parts of mercaptobenzothiazole, 2-methoxythiazole 21 parts, polyacrylic acid 9 parts, diethanolamine 13 parts, octadecanol polyethylene oxide polyoxypropylene ether 7 parts, octylphenol polyoxyethylene ether OP-15 8 parts, sulfonamide thiazole 15 parts, phenolic resin 3 parts, isopropanol 29 parts, water 300 parts and anti-corrosion fermentation liquid 30 parts.

[0031] The preparation method of the anti-corrosion fermentation liquid comprises the following steps, (1) the oyster powder, corn germ meal and bran crushed with peptone, sugarcane molasses and monocrystalline rock sugar mixed, water is added to the mixture to form a mixture; (2) according to the mass...

Embodiment 2

[0035] as Figure 2 As shown, the present invention provides an acidification inhibitor for formation acid deblocking, compatibility with formation deblocking agent to play a role in efficient acidification corrosion inhibition. Acidification inhibitor of the present invention includes components of the following weight, 30 parts of mercaptobenzothiazole, 25 parts of 2-methoxythiazole, 5 parts of polyacrylic acid, 20 parts of diethanolamine, 5 parts of octacol polyethylene oxide polyoxypropylene ether, octylphenol polyoxyethylene ether OP-15 10 parts, sulfonamide thiazole 10 parts, 4 parts of phenolic resin, 25 parts of isopropanol, 200 parts of water and 25 parts of anti-corrosion fermentation broth.

[0036] The preparation method of the anti-corrosion fermentation broth comprises the following steps, (1) the oyster powder, corn germ meal and bran crushed and mixed with peptone, sugarcane molasses and monocrystalline rock sugar, adding water to the mixture to form a mixture of li...

Embodiment 3

[0040] as Figure 3 As shown, the present invention provides an acidification inhibitor for formation acid deblocking, compatibility with formation deblocking agent to play a role in efficient acidification corrosion inhibition. Acidification inhibitor of the present invention includes components of the following weight, mercaptobenzothiazole 40 parts, 2-methoxythiazole 15 parts, polyacrylic acid 10 parts, diethanolamine 10 parts, octadecanol polyethylene oxide polyoxypropylene ether 8 parts, octylphenol polyoxyethylene ether OP-15 6 parts, sulfonamide 20 parts, phenolic resin 2 parts, isopropanol 30 parts, water 350 parts and anti-corrosion fermentation liquid 35 parts.

[0041]The preparation method of the anti-corrosion fermentation broth comprises the following steps, (1) the oyster powder, corn germ meal and bran crushed and mixed with peptone, sugarcane molasses and monocrystalline rock sugar, adding water to the mixture to form a mixture of liquid; (2) according to the inocu...

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Abstract

The invention relates to an acidizing corrosion inhibitor for stratum acidification blockage removal, which is prepared from the following components in parts by weight: 30 to 40 parts of mercaptobenzothiazole, 15 to 25 parts of 2-methoxythiazole, 5 to 10 parts of polyacrylic acid, 10 to 20 parts of diethanol amine, 5 to 8 parts of octadecanol polyethylene oxide polyoxypropylene ether, 6 to 10 parts of octylphenol polyoxyethylene ether OP-15, 10 to 20 parts of sulfathiazole and 2 to 4 parts of phenolic resin. 25 to 30 parts of isopropanol, 200 to 350 parts of water and 25 to 35 parts of anti-corrosion fermentation liquor. The invention further provides a preparation method of the corrosion inhibitor, and the corrosion inhibitor has a more efficient corrosion inhibition effect and can be combined with a stratum blocking remover for use.

Description

Technical field [0001] The present invention relates to the field of oil and gas field development technology, specifically to a formation acidification plugging acidification corrosion inhibitor and preparation method thereof. Background [0002] Oil layer acidification is an important measure to increase the production of oil and gas wells in carbonate reservoirs, and it is also an effective measure for the deblocking of oil and water wells in sandstone reservoirs, increasing production and injection, and with the development of process technology, the application of oil layer acidification is becoming more and more extensive. [0003] Acid decoloration process technology is an effective measure to remove pollution in the near well zone of oil and gas reservoirs and restore the production capacity of oil and gas wells. In terms of reservoir damage, formation clogging is the result of a combination of potential injury factors and the outside world on the reservoir itself. The ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/52C09K8/54
CPCC09K8/52C09K8/54
Inventor 李会勇郑金中杜明慧王伟强崔健
Owner 沧州中润化学助剂有限公司
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