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Aryl-substituted saccharides or glycosides and their use in drilling fluid compositions

A technology of glycosides and aryl groups, applied in the field of aryl-substituted sugars or glycosides, can solve the problems of formation stress collapse and instability, damage to the original stress balance of the formation, and drilling fluid intrusion into the formation.

Active Publication Date: 2020-06-23
CHINA PETROCHEMICAL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fluid loss of the drilling fluid is not well controlled, a large amount of drilling fluid will invade the formation, resulting in the destruction of the original stress balance of the formation, resulting in the stress collapse and instability of the formation

Method used

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  • Aryl-substituted saccharides or glycosides and their use in drilling fluid compositions
  • Aryl-substituted saccharides or glycosides and their use in drilling fluid compositions
  • Aryl-substituted saccharides or glycosides and their use in drilling fluid compositions

Examples

Experimental program
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Embodiment approach

[0085] According to one embodiment of the present invention, the substituent B is schematically represented by the following chemical formula (B-1), chemical formula (B-2) or chemical formula (B-3).

[0086]

[0087]

[0088] According to one embodiment of the present invention, in these chemical formulas, p is a value of 0-30 or 2-30 (preferably a value of 5-25 or 10-20, most preferably 15), q is 0-30 or 2-30 (preferably 5-25 or 10-20, most preferably 15), r is 0-30 or 2-30 (preferably 5-25 or 10-20, most preferably 15), s is 2 A value of -30 (preferably a value of 5-25 or 10-20, most preferably 15), v is a value of 0-30 (preferably a value of 1-20 or 4-12). In these chemical formulas, all substituents and values ​​that are not clearly defined (such as R 3 , R 4 and M, etc.) apply directly to the corresponding definitions for the substituents B.

[0089] According to one embodiment of the present invention, the sugar or glycoside is a glucose residue or a glucose gly...

Embodiment 1

[0147] Add 24g of propylene oxide, 70g of octyl glucoside, and 10g of sodium carbonate into a four-necked flask with a condensing reflux and stirring device, control the stirring speed at 800r / min, and react at a temperature of 95°C for 1 hour to obtain a polyether Alcohol octyl glycoside;

[0148] Add 20g of acrylic acid, 20g of styrene, 20g of acrylamide, and 10g of 2-acrylamide-2-methylpropanesulfonic acid to the above polyether alcohol-based octyl glucoside, and stir evenly at a stirring speed of 800r / min , the pH value of the reaction solution was adjusted to 8 with 18g of sodium hydroxide, 0.6g of ammonium persulfate was added, and the reaction was carried out at 40° C. for 1 hour to obtain a reddish-brown transparent product (also called aryl-substituted glycoside component). The amine value of the aryl-substituted sugar or glycoside described in Example 1 is 0.11 mmol / g.

[0149] The product prepared in Example 1 of the present invention is detected by infrared spectr...

Embodiment 2

[0155] Add 24g of 1,2-epoxybutane, 80g of decyl glucoside, and 15g of potassium carbonate into a four-necked flask with a condensing reflux and stirring device, control the stirring speed at 900r / min, and react at a temperature of 100°C for 2 Hour, obtain polyether alcohol base decyl glucoside;

[0156] Add 30g of acrylic acid, 30g of styrene, 30g of acrylamide, and 20g of 2-acrylamide-2-methylpropanesulfonic acid to the above polyether alcohol decyl glucoside, and stir evenly at a stirring speed of 900r / min , use 24g of potassium hydroxide to adjust the pH value of the reaction solution to 9, add 0.8g of potassium persulfate, and react at 50°C for 2 hours to obtain a reddish-brown transparent product. The amine value of the aryl-substituted sugar or glycoside described in Example 2 is 0.23 mmol / g.

[0157] The product prepared in Example 2 of the present invention is detected by infrared spectrum, and the infrared spectrum is as follows figure 2 As shown, the test result i...

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Abstract

The invention relates to aryl-substituted saccharides, glycosides, or mixtures of a plurality of aryl-substituted saccharides or glycosides, having at least good high-temperature resistance, salt resistance and filtrate loss reduction properties. The invention also relates to a drilling fluid composition prepared from the aryl-substituted saccharides or glycosides and a preparation method of the drilling fluid composition. The aryl-substituted saccharides, glycosides or a mixture of a plurality of aryl-substituted saccharides or glycosides have a substituent A and a substituent B, the structure of the substituent A comprises a unit O-R6-, and the definitions of substituents and numerical values of the units of the structure of the substituent B are as shown in the specification.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on December 13, 2018, with the application number 201811525211.1, and the title of the invention "a polyether alcohol-based alkyl glycoside graft and its preparation method and drilling fluid" rights, the entire contents of which are incorporated in this application by reference. technical field [0002] The present invention relates to aryl-substituted sugars or glycosides, and more particularly to one aryl-substituted sugar or glycoside or a mixture of aryl-substituted sugars or glycosides. The present invention also relates to a drilling fluid composition produced from the aryl-substituted sugar or glycoside and a method for producing the drilling fluid composition. Background technique [0003] In recent years, with the drilling of deep wells, ultra-deep wells, highly deviated wells, horizontal wells and complex formations in the process of oil and gas explo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/06C08F212/08C08F220/56C08F220/58C09K8/24
CPCC09K8/24C08F283/06C08F220/58C08F220/06C08F212/08C08F220/56C07H15/207C09K8/08
Inventor 司西强王中华李伟廷魏军王忠瑾吕跃滨
Owner CHINA PETROCHEMICAL CORP
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