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Water dispersion composite sand-fixing agent formula

A sand-fixing agent and dispersion-type technology, applied in the field of compound sand-fixing agent formulation, can solve the problems of not being suitable for sand-producing wells with low clay content, the sand-fixing agent cannot be applied to the formation, and the solidifying agent has poor pumpability, etc. Achieve the effect of good pumpability, low cost and simple on-site construction

Inactive Publication Date: 2008-02-27
赵彧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the chemical sand control and sand consolidation technology of oil and water wells is to solve the problem of sand production in oil and water wells. well and borehole wall sand-fixing technology, sand-fixing water plugging and sand-fixing plugging removal technology, fracturing sand control technology, and sand-fixing formation pretreatment technology, but the sand-fixing agent cannot be applied to all formations, especially in solving multiple There are problems in stratification and layer selection for sand control in layered wells. The curing agent has disadvantages such as poor pumpability, large dosage, large loss of permeability, and low compressive strength. It is not suitable for sand production wells with low clay content.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: comprise the component of following percentage by weight:

[0020] (1) Modified phenolic resin: a kind of aminophenolic resin, ratio 6.0%;

[0021] (2) Silicone resin, a silane of glycidyl ether propyl trimethoxy group, the ratio is 0.20%;

[0022] (3) Dispersant, furfural, ratio 10%;

[0023] (4) Mutual solvent, ethanol, ratio 3.5%;

[0024] (5) curing agent, phosphoric acid, ratio 0.13%;

[0025] (6) The remaining ratio is: water.

Embodiment 2

[0026] Embodiment 2: preferred technical scheme comprises the component of following percentage by weight:

[0027] (1) Modified phenolic resin: a kind of aminophenolic resin, the ratio is 5.5%;

[0028] (2) Silicone resin, a silane of glycidyl ether propyl trimethoxy group, the ratio is 0.05%;

[0029] (3) Dispersant, furfural, ratio 6%;

[0030] (4) Mutual solvent, ethanol, ratio 1.5%;

[0031] (5) curing agent, phosphoric acid, ratio 0.07%;

[0032] (6) The remaining ratio is: water.

[0033] The preparation method of the present invention is as follows:

[0034] (1) Put the modified phenolic resin, silicone resin, dispersant, and mutual solvent in order and in proportion under the condition of uninterrupted stirring, and then add them into the reaction kettle in turn, and heat it to 45 ° C ~ 50 ° C, and keep warm for 4 About an hour, then add the curing agent, stir evenly and then discharge;

[0035] (2) Pour the mixture prepared in the previous step into the pond ac...

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Abstract

The invention relates to a formula of water dispersing compounding sand consolidation agent. It is made up from modified phenol-formaldehyde resin 5-8%, organic silicon resin 0.02-0.25%, furfural compounding 5-15%, alcohol compounding 0.5-5%, phosphoric acid series compounding 0.05-0.15% and water 89.43-81.6%. The benefit is that the sand consolidation agent has low viscosity, low usage quantity, low cost, etc.

Description

1. Technical field: [0001] The invention relates to a formulation of a composite sand-consolidating agent, in particular to a formulation of a water-dispersed composite sand-consolidating agent. 2. Background technology: [0002] At present, the chemical sand control and sand consolidation technology of oil and water wells is to solve the problem of sand production in oil and water wells. well and borehole wall sand-fixing technology, sand-fixing water plugging and sand-fixing plugging removal technology, fracturing sand control technology, and sand-fixing formation pretreatment technology, but the sand-fixing agent cannot be applied to all formations, especially in solving multiple There are problems in stratification and layer selection for sand control in multilayer wells. The curing agent has disadvantages such as poor pumpability, large dosage, large loss of permeability, and low compressive strength. It is not suitable for sand production wells with low clay content. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/575
Inventor 赵彧张桂意
Owner 赵彧
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