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Discharge aiding agent for fracture acidizing, manufacturing of discharge aiding agent and use method of discharge aiding agent

A technology of fracturing acidification and manufacturing method, which is applied in the directions of chemical instruments and methods, drilling compositions, etc., can solve problems such as environmental pollution of drainage aids, and achieve the effect of reducing environmental pollution

Active Publication Date: 2016-02-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a drainage aid for fracturing acidification, a manufacturing method and a use method, so as to solve the technical problem that the drainage aid in the prior art causes pollution to the environment

Method used

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  • Discharge aiding agent for fracture acidizing, manufacturing of discharge aiding agent and use method of discharge aiding agent
  • Discharge aiding agent for fracture acidizing, manufacturing of discharge aiding agent and use method of discharge aiding agent
  • Discharge aiding agent for fracture acidizing, manufacturing of discharge aiding agent and use method of discharge aiding agent

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Get 8 parts (weight) of alkyl polyglycosides and dissolve in 70 parts of water, stir at room temperature, and dissolve evenly; Stir evenly to make 100 parts of environment-friendly drainage aid for fracturing and acidification.

[0046] According to the laboratory test results of the drainage aid, the surface tension is 27.10mN / m and the interfacial tension is 0.138mN / m at a concentration of 0.3% by mass.

Embodiment 2

[0048] The preparation process of this embodiment is basically the same as that of Example 1, except that 12 parts of alkyl polyglycosides are taken, dissolved in 70 parts of water, stirred evenly, then added with 3 parts of fatty amine polyoxyethylene ether, replenished with water and stirred evenly to make 100 parts Environmentally friendly drainage aid for fracturing and acidizing.

[0049] According to the laboratory test results of the drainage aid, the surface tension is 27.03mN / m and the interfacial tension is 0.103mN / m at a concentration of 0.3% by mass.

Embodiment 3

[0051] The preparation process of this embodiment is basically the same as that of Example 1, except that 8 parts of alkyl polyglycosides are taken, dissolved in 70 parts of water, stirred evenly, then added with 4 parts of fatty amine polyoxyethylene ether, replenished with water and stirred evenly to make 100 Environmentally friendly drainage aid for fracturing and acidizing.

[0052] According to the laboratory test results of the drainage aid, the surface tension is 27.08mN / m and the interfacial tension is 0.121mN / m at a concentration of 0.3% by mass.

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Abstract

The invention relates to the field of oil and gas field fracturing liquid additive preparation, and discloses a discharge aiding agent for fracture acidizing, a manufacturing of the discharge aiding agent and a use method of the discharge aiding agent, and aims at solving the technical problem of environment pollution of the discharge aiding agent in the prior art. The discharge aiding agent is prepared from 8 percent to 12 percent of alkyl polyglucosides, 2 percent to 4 percent of fatty amine polyoxyethylene ether and the balance water through be metered in percentage by mass. The main ingredients of the discharge aiding agent are all green degradable substances, so that the technical effect of reducing the environment pollution is achieved.

Description

technical field [0001] The invention relates to the field of oil and gas field fracturing fluid additive preparation, in particular to a drainage aid for fracturing acidification, a manufacturing method and a using method. Background technique [0002] Fracturing is an important measure for the reconstruction of low-permeability and ultra-low-permeability oil and gas reservoirs, and a leading technology for the effective development of tight oil and gas reservoirs. How to improve the flowback rate of fracturing fluid and reduce the water sensitivity and water lock damage caused by fracturing fluid to the reservoir is one of the key factors to improve the fracturing effect. The main component of the drainage aid is surfactant. The rock surface is usually negatively charged. Cationic surfactants are easy to cause wetting and inversion of the rock and hinder the smooth outflow of crude oil. Cationic surfactants are not selected as drainage aids; due to the excellent performance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/74
CPCC09K8/602C09K8/604C09K8/725C09K8/74
Inventor 陈紫薇李晓娟隋向云贾云鹏王娟李伯芬
Owner PETROCHINA CO LTD
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