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A high temperature resistant humic amide oil-based mud fluid loss reducer and its preparation method

A technology of humic amide and fluid loss control agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of poor temperature resistance, dispersion and suspension ability of humic amide, poor effect of fluid loss control agent, etc., and achieve Increase dispersion and suspension capacity, low price, mild condition effect

Active Publication Date: 2018-02-02
巴州鸿鼎石油应用化学有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the methods for synthesizing humic amide mainly include direct amination method, first acyl chloride and then amination method, direct amination of ester and amine, etc., but the temperature resistance and dispersion and suspension ability of humic amide synthesized by these methods are poor. Poor effect as oil-based mud fluid loss reducer

Method used

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  • A high temperature resistant humic amide oil-based mud fluid loss reducer and its preparation method
  • A high temperature resistant humic amide oil-based mud fluid loss reducer and its preparation method
  • A high temperature resistant humic amide oil-based mud fluid loss reducer and its preparation method

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Embodiment 1

[0028] A preparation method of high temperature resistant humic amide oil-based mud fluid loss reducer, according to the following steps:

[0029] 1. Add 60g of sodium humate to 500g of water, stir to make it all dissolve and make a sodium humate solution;

[0030] 2. Add 10g of urea to 100g of water, stir to make it all dissolve and make urea solution;

[0031] 3. Put the sodium humate solution in a water bath and heat it to 90°C under stirring conditions, increase the stirring speed appropriately, slowly add the urea solution into the sodium humate solution, and reduce the stirring speed after it is fully dissolved;

[0032] 4. Start timing when the temperature of the solution rises to 90°C, stop stirring after 50 minutes, cool to room temperature, and discard the bottom layer;

[0033] 5. Dissolve 10g of ferrous chloride in 50g of water to prepare a ferrous solution;

[0034] 6. Slowly add the ferrous solution into the humic amide solution under stirring conditions, contr...

Embodiment 2

[0038] A preparation method of high temperature resistant humic amide oil-based mud fluid loss reducer, according to the following steps:

[0039] 1. Add 60g of sodium humate to 500g of water, stir to make it all dissolve and make a sodium humate solution;

[0040] 2. Add 15g of urea to 100g of water, stir to make it all dissolve and make urea solution;

[0041] 3. Heat the sodium humate solution in a water bath to 90°C under stirring conditions, increase the stirring speed appropriately, slowly add the urea solution into the sodium humate solution, and reduce the stirring speed after it is fully dissolved;

[0042] 4. Start timing when the temperature of the solution rises to 90°C, stop stirring after 50 minutes, cool to room temperature, and discard the precipitate at the bottom.

[0043] 5. Dissolve 10g of ferrous chloride in 50g of water to prepare a ferrous solution;

[0044] 6. Slowly add the ferrous solution into the humic amide solution under stirring conditions, con...

Embodiment 3

[0048] A preparation method of high temperature resistant humic amide oil-based mud fluid loss reducer, according to the following steps:

[0049] 1. Add 60g of sodium humate to 500g of water, stir to make it all dissolve and make a sodium humate solution;

[0050] 2. Add 10g of urea to 100g of water, stir to make it all dissolve and make urea solution;

[0051] 3. Heat the sodium humate solution in a water bath to 90°C under stirring conditions, increase the stirring speed appropriately, slowly add the urea solution into the sodium humate solution, and reduce the stirring speed after it is fully dissolved;

[0052] 4. Start timing when the temperature of the solution rises to 90°C, stop stirring after 50 minutes, cool to room temperature, and discard the bottom layer;

[0053] 5. Dissolve 15g of ferrous chloride in 50g of water to prepare a ferrous solution;

[0054] 6. Slowly add the ferrous solution into the humic amide solution under stirring conditions, control the reac...

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Abstract

The invention relates to a high temperature-resistant amide humate oil-base mud fluid loss additive and a preparation method thereof, belonging to the technical field of humic acid fluid loss additives and aiming at solving the technical problem of improving the high temperature-resistant characteristic of an amide humate oil-base mud fluid loss additive. According to the technical scheme, the preparation method of the high temperature-resistant amide humate oil-base mud fluid loss additive comprises the following steps of: 1, preparing an amide humate solution, slowly adding a urea solution to a sodium humate solution at certain temperature, sufficiently dissolving and then cooling to room temperature, and pouring out the upper amide humate solution; 2, preparing a fluid loss additive, and slowly adding a ferrous solution to the amide humate solution under the condition of stirring for reacting to obtain a complexing solution; drying the complexing solution to obtain the high temperature-resistant amide humate oil-base mud fluid loss additive. The high temperature-resistant amide humate oil-base mud fluid loss additive disclosed by the invention can be used for increasing the tolerable temperature of amide humate, and thus the amide humate can be used under the condition of higher temperature.

Description

technical field [0001] The invention relates to a high-temperature-resistant humic acid oil-based mud fluid loss reducer and a preparation method thereof, belonging to the technical field of humic acid fluid loss reducers. Background technique [0002] Humic acid exists in large quantities in nature, so the price of humic acid and humic acid salts is generally not high. With people's understanding of humic acid, many products modified by humic acid have been gradually derived, and humic acid amide is one of them. Occupies a pivotal position, and humic acid amide is also widely used. At present, humamide is widely used in chemical fertilizers (humicamide urea slow-release fertilizer), feed (used to replace urea in ruminant feed, which can prevent urea poisoning), and a small part is used as oil-based mud fluid loss control agent. As an oil-based mud fluid loss reducer, it has the characteristics of simple synthesis process and easy storage. But there are also some deficienc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035
CPCC09K8/035
Inventor 张文龙赵秀峰马飞张彩凤徐龙龙叶茂青黎明刘智马爱萍张璐萍高宇
Owner 巴州鸿鼎石油应用化学有限公司