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Solid foaming agent

A foaming agent, solid technology, applied in drilling equipment and other directions, can solve the problems of poor water dispersibility, single surfactant, weak oil-water emulsification, etc., to achieve less pollution and interference, good foaming stability, good high temperature resistance

Inactive Publication Date: 2005-10-19
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent number is 89108127.5, and the name is the foaming agent for foam fracturing. Its composition contains anionic surfactant-linear alkyl sulfate for foaming, lauryl alcohol is used as a stabilizer, and the tackifier is made of Hydroxyethyl cellulose, ethanol is used as a cosolvent, the water dispersibility is not good, the foaming agent is liquid type, its foam stabilizing performance can reach 37min, and the oil-water emulsification is not strong, due to the surface activity of the liquid type foaming agent Single agent, limited to oil well fracturing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] At normal temperature, the components of the present invention are:

[0020] Linear alkyl sulfates 25%-45%

[0021] Fatty alcohol sulfates 10%-40%

[0022] Fatty alcohol polyvinyl ether sulfate sodium salt 2%-5%

[0023] Alkanolamide 2%-5%

[0024] Sodium silicate 2%-10%

[0025] Polyvinyl alcohol 2%-12%

[0026] Sodium Carboxymethyl Cellulose 1%-8%

[0027] Sodium edetate 1%-6%

[0028] The following table lists the components of three examples at normal temperature:

[0029] Element

Example 1

Example 2

Example 3

Sodium dodecyl benzene sulfonate

45％

45％

Sodium tetradecylbenzenesulfonate

45％

fatty alcohol sulfates

30％

35％

35％

Fatty alcohol polyvinyl ether sulfate sodium salt

3％

3％

5％

Alkanolamides

2％

2％

3％

Sodium silicate

5％

3％

2％

polyvinyl alcohol

5％

2％...

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PUM

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Abstract

The industrial solid foaming agent composition is used in foaming deairing well drilling and provides excellent foaming performance and foaming stability. The solid foaming agent composition features that the solid foaming agent has anionic surfactant as main material accounting for over 25 wt% and contains also stabilizer, tackifier, co-solvent, chelating agent and other components, and all the components are mixed homogeneously and extruded to form the solid foaming agent. When used, the solid foaming agent added into water at 25-100 deg.c to form the foam liquid. The solid foaming agent has the advantages of high foaming performance, high resistance to high calcium ion water, etc.

Description

technical field [0001] The invention provides a foaming agent for oil and gas field foam drainage drilling. Background technique [0002] Compared with the traditional gas-lift drainage drilling method, foam drainage drilling has shown its superiority more and more. The core of its technology is the foaming agent, which is used to drain well water and so on. The patent number is 89108127.5, and the name is the foaming agent for foam fracturing. Its composition contains anionic surfactant-linear alkyl sulfate for foaming, lauryl alcohol is used as a stabilizer, and the tackifier is made of Hydroxyethyl cellulose, ethanol is used as a cosolvent, the water dispersibility is not good, the foaming agent is liquid type, its foam stabilizing performance can reach 37min, and the oil-water emulsification is not strong, due to the surface activity of the liquid type foaming agent A single agent, limited to oil well fracturing. Contents of the invention [0003] The object of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
Inventor 冯辉霞王毅郭术陈娜丽俞树荣李春雷王青宁
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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