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Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid

A drilling fluid and inhibitor technology, applied in the field of drilling, can solve the problems of high cost, affecting oil and gas layer display, polluting the environment, etc., and achieve the effects of reducing water activity, excellent inhibition of lubrication, and good thermal stability

Active Publication Date: 2012-10-10
北京奥凯立科技发展股份有限公司
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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 to provide a kind of lubrication inhibitor for drilling fluid containing methyl glucoside compounds and the preparation method of this lubrication inhibitor for drilling fluid and the drilling fluid containing the lubrication inhibitor for drilling fluid , the comprehensive performance of the drilling fluid of the present invention is comparable to that of oil-based drilling fluid, and can overcome the disadvantages of oil-based drilling fluid polluting the environment, affecting oil and gas layer display, and high cost

Method used

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  • Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid
  • Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid
  • Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid

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Experimental program
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Effect test

Embodiment 1

[0020] Dissolve 300g of methyl glucoside in 200g of water, add 0.5g of anhydrous zinc chloride, add dropwise 60g of hydrochloric acid with a concentration of 31% while stirring, after the addition is completed, heat up to 70°C, and keep the reaction in airtight heat preservation for 2 hours. Add 60g of Na to it 2 SO 3 , stir evenly, open the door and heat up to 90°C, and react for 1 hour. Dry the obtained product at 30°C, pulverize, and sieve to obtain the lubrication inhibitor for drilling fluid of this embodiment, which contains the methyl glucoside compound shown in the following formula:

[0021]

[0022] In some other embodiments, the lubrication inhibitor for drilling fluid of the present invention can also be prepared according to the reaction conditions shown in the following table 1, all can realize the lubrication inhibitor for drilling fluid of the present invention:

[0023] Table 1 Preparation method of lubrication inhibitor for drilling fluid

[0024]

...

Embodiment 2

[0027] The preparation method of the lubrication inhibitor for drilling fluid of the present embodiment is as follows: on the basis of Example 1, it also includes the steps of adding bactericide and antioxidant and pulverizing and mixing uniformly, and the addition amount of the bactericide is: Example 0.2‰ of the quality of the substance obtained in 1, the addition of the antioxidant is: 0.2‰ of the quality of the substance obtained in Example 1. The bactericide is quaternary ammonium salt bactericide 1227, and the antioxidant is sodium bisulfite. During the specific preparation of the lubrication inhibitor for drilling fluid in this example, the methyl glucoside compound, quaternary ammonium salt fungicide 1227 and sodium bisulfite were added according to the above ratio, pulverized and mixed uniformly to obtain The lubrication inhibitor for drilling fluid in this embodiment.

Embodiment 3

[0029] The preparation method of the lubrication inhibitor for drilling fluid of the present embodiment is as follows: on the basis of Example 1, it also includes the steps of adding bactericide and antioxidant and pulverizing and mixing uniformly, and the addition amount of the bactericide is: Example 0.1‰ of the quality of the substance obtained in 1, the addition of the antioxidant is: 0.1‰ of the quality of the substance obtained in Example 1. The bactericide is isothiazolinone, and the antioxidant is sodium sulfite. When the lubrication inhibitor for drilling fluid of this embodiment is specifically prepared, the methyl glucoside compound, isothiazolinone and sodium sulfite are added according to the above ratio, pulverized and mixed uniformly to obtain the drilling fluid of this embodiment Use a lubricant inhibitor.

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Abstract

The invention relates to a lubricating inhibitor containing methylglucoside compounds for a drilling fluid and a preparation method of the lubricating inhibitor for the drilling fluid and the drilling fluid containing the lubricating inhibitor for the drilling fluid. The comprehensive performance of the drilling fluid can be compared with that of an oil-based drilling fluid; in addition, the invention can overcome the defects that the oil-based drilling fluid pollutes the environment, influences the display of an oil-gas layer and has high cost.

Description

technical field [0001] The invention relates to a lubrication inhibitor for drilling fluid, a preparation method of the lubrication inhibitor for drilling fluid and a drilling fluid containing the lubrication inhibitor for drilling fluid, belonging to the technical field of drilling. Background technique [0002] Because horizontal wells can maximize the drainage area of ​​oil layers and improve the effect of exploration and development, they have played an increasingly important role in oilfield exploration and development in recent years, and the number of wells drilled has also increased. At the same time, due to the large well deviation of horizontal wells, Drilling fluid lubricity, carrying capacity and oil layer protection effect put forward higher requirements. Well-known drilling fluids in the prior art can be divided into three categories: water-based drilling fluids, oil-based drilling fluids and synthetic-based drilling fluids. The difference between synthetic-ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035C07H15/04C07H1/00C09K8/22
Inventor 卢甲举王铁林卢艳丽冯素敏王雷董海军田相友
Owner 北京奥凯立科技发展股份有限公司
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