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Foam scrubbing agent with gas condensate resistance and salt resistance and preparation method of foam scrubbing agent

An anti-condensate oil and salt bubble technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of poor foaming effect and high liquid carrying capacity of foaming agent, so as to enhance stability and reduce drainage liquid, wide range of applications

Active Publication Date: 2017-11-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problem that the foaming effect of the foaming agent in the prior art is poor when the condensate oil content is higher than 30%, and provides a new anti-condensate oil and salt-resistant foaming agent. The selection and specific ratio design realize that the liquid carrying capacity of the foam discharge agent is still high under high condensate oil content, and the liquid carrying capacity will not decrease with the increase of condensate oil content

Method used

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  • Foam scrubbing agent with gas condensate resistance and salt resistance and preparation method of foam scrubbing agent
  • Foam scrubbing agent with gas condensate resistance and salt resistance and preparation method of foam scrubbing agent
  • Foam scrubbing agent with gas condensate resistance and salt resistance and preparation method of foam scrubbing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An anti-condensate oil and anti-salt foaming agent is composed of the following raw materials in terms of mass percentage:

[0021] Cocamidopropyl Hydroxysultaine 20%;

[0022] Erucamide propyl betaine 10%;

[0023] Lauramide propylamine oxide 5%;

[0024] Sodium lauryl sulfate 2%;

[0025] Polyvinylpyrrolidone 1%;

[0026] Sodium chloride 1%;

[0027] The rest is water.

[0028] The preparation method of the foam discharge agent of the present embodiment, the steps are as follows:

[0029] A. Weigh cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium lauryl sulfate, polyvinylpyrrolidone, sodium salt and water according to the formula, and set aside ;

[0030] B. Add the cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium salt and water weighed in step A into a reaction kettle with a stirring paddle and stir , and heated to 30°C;

[0031] C. Add the sodium lauryl sulfate an...

Embodiment 2

[0034] An anti-condensate oil and anti-salt foaming agent is composed of the following raw materials in terms of mass percentage:

[0035] Cocamidopropyl Hydroxysultaine 30%;

[0036] Erucamide propyl betaine 20%;

[0037] Lauramide propylamine oxide 15%;

[0038] Sodium Lauryl Sulfate 5%;

[0039] Polyvinylpyrrolidone 2%;

[0040] Sodium chloride 2%;

[0041] The rest is water.

[0042] The preparation method of the foam discharge agent of the present embodiment, the steps are as follows:

[0043] A. Weigh cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium lauryl sulfate, polyvinylpyrrolidone, sodium salt and water according to the formula, and set aside ;

[0044] B. Add the cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium salt and water weighed in step A into a reaction kettle with a stirring paddle and stir , and heated to 30°C;

[0045] C. Add the sodium lauryl sulfate a...

Embodiment 3

[0048] An anti-condensate oil and anti-salt foaming agent is composed of the following raw materials in terms of mass percentage:

[0049] Cocamidopropyl Hydroxysultaine 25%;

[0050] Erucamide propyl betaine 15%;

[0051] Lauramide propylamine oxide 10%;

[0052] Sodium Lauryl Sulfate 3.5%;

[0053] Polyvinylpyrrolidone 1.5%;

[0054] Sodium chloride 1.5%;

[0055] The rest is water.

[0056] The preparation method of the foam discharge agent of the present embodiment, the steps are as follows:

[0057] A. Weigh cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium lauryl sulfate, polyvinylpyrrolidone, sodium salt and water according to the formula, and set aside ;

[0058] B. Add the cocamidopropyl hydroxysultaine, erucamide propyl betaine, lauryl amidopropyl amine oxide, sodium salt and water weighed in step A into a reaction kettle with a stirring paddle and stir , and heated to 50°C;

[0059] C. Add the sodium lauryl sul...

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Abstract

The invention discloses a foam scrubbing agent with gas condensate resistance and salt resistance and a preparation method of the foam scrubbing agent and belongs to the technical field of gas well exploitation materials in the oil and gas field. The foam scrubbing agent is prepared from raw materials in percentage by mass as follows: 20%-30% of cocamido propyl hydroxy sulfobetaine, 10%-20% of erucylamide propyl betaine, 10%-20% of lauramidopropylamine oxide, 2%-5% of sodium dodecyl sulfate, 1%-2% of a foam stabilizer, 1%-2% of sodium salt and the balance of water. The foam scrubbing agent is applicable to well gas exploitation and has good gas condensate resistance and salt resistance capability.

Description

technical field [0001] The invention relates to a foaming agent, in particular to an anti-condensate oil and salt-resistant foaming agent and a preparation method thereof, belonging to the technical field of materials for gas well development in the field of oil and gas fields. Background technique [0002] The flow state of most gas wells during normal production is annular fog state, the liquid is carried to the surface by the gas in the form of droplets, the gas is the continuous phase and the liquid is the discontinuous phase. When the flow rate of the gas phase is too low to provide enough energy to continuously bring the liquid phase out of the wellhead, the liquid phase will slip from the gas phase, flow in the opposite direction to the gas flow, and accumulate at the bottom of the well, forming bottom well fluid accumulation. Fluid accumulation in the wellbore will increase the back pressure on the bottom of the well, limiting the productivity of the well. If the am...

Claims

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Application Information

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IPC IPC(8): C09K8/584C09K8/60
CPCC09K8/584C09K8/602
Inventor 王旭周兴付李祖友冯玉军殷鸿尧鲁光亮杨筱璧瞿超超王浩儒刘大永王雨生姚远唐雷王远东聂岚
Owner CHINA PETROLEUM & CHEM CORP
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