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Anti-methanol foam drainage agent and its preparation process

A foam drainage agent and technology for preparation process, which are applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of poor self-foaming performance, unenvironmental components, weak methanol capacity, etc., and achieve strong self-foaming capacity and equipment The effect of low environmental requirements and simple ingredients

Inactive Publication Date: 2016-04-13
中国石油天然气股份有限公司长庆油田分公司第二采气厂 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the above two foam drainage agents is high, the composition is not environmentally friendly, the performance of spontaneous bubbles is poor, and the ability to resist oil and methanol is weak

Method used

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  • Anti-methanol foam drainage agent and its preparation process
  • Anti-methanol foam drainage agent and its preparation process
  • Anti-methanol foam drainage agent and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: anti-methanol foam drainage agent, it is made up of the raw material of following weight portion content:

[0040]

[0041] Described saponin extract is also called saponin, saponin, and molecular formula is: C 27 h 42 o 3 .

[0042] The preparation technology of anti-methanol foam drainage agent, it comprises the following steps:

[0043] S1. Take the raw materials of the above parts by weight respectively for subsequent use;

[0044] S2. Add the polyethylene glycol and triethanolamine weighed in the step S1 into the mixing tank, and stir evenly;

[0045] S3. Add the saponin essence and fatty alcohol polyoxyethylene ether weighed in step S1 into the mixing tank successively, add water after stirring evenly, and stir until all materials are dissolved;

[0046] S4. Release all the dissolved materials and pack them to obtain the finished product.

Embodiment 2

[0047] Embodiment 2: anti-methanol foam drainage agent, it is made up of the raw material of following weight portion content:

[0048]

[0049] Described saponin extract is also called saponin, saponin, and molecular formula is: C 27 h 42 o 3 .

[0050]The preparation technology of anti-methanol foam drainage agent, it comprises the following steps:

[0051] S1. Take the raw materials of the above parts by weight respectively for subsequent use;

[0052] S2. Add the polyethylene glycol and triethanolamine weighed in the step S1 into the mixing tank, and stir evenly;

[0053] S3. Add the saponin essence and fatty alcohol polyoxyethylene ether weighed in step S1 into the mixing tank successively, add water after stirring evenly, and stir until all materials are dissolved;

[0054] S4. Release all the dissolved materials and pack them to obtain the finished product.

Embodiment 3

[0055] Embodiment 3: anti-methanol foam drainage agent, it is made up of the raw material of following weight portion content:

[0056]

[0057] Described saponin extract is also called saponin, saponin, and molecular formula is: C 27 h 42 o 3 .

[0058] The preparation technology of anti-methanol foam drainage agent, it comprises the following steps:

[0059] S1. Take the raw materials of the above parts by weight respectively for subsequent use;

[0060] S2. Add the polyethylene glycol and triethanolamine weighed in the step S1 into the mixing tank, and stir evenly;

[0061] S3. Add the saponin essence and fatty alcohol polyoxyethylene ether weighed in step S1 into the mixing tank successively, add water after stirring evenly, and stir until all materials are dissolved;

[0062] S4. Release all the dissolved materials and pack them to obtain the finished product.

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Abstract

The invention discloses a methanol-tolerance foaming drainage agent. The methanol-tolerance foaming drainage agent comprises the following active ingredients in parts by weight: 30-50 parts of saponin extract, 10-30 parts of polyethylene glycol, 2-8 parts of triethanolamine, 10-30 parts of alkyl alcohol polyoxyethylene ether, and 10-20 parts of water; the invention further discloses a preparation technology. The methanol-tolerance foaming drainage agent and preparation technology thereof have the beneficial effects that compared with the traditional foaming drainage agent, the methanol-tolerance foaming drainage agent has the characteristics of being simple in components, non-toxic and environment-friendly, strong in self-foaming capability, good in foam stability, and strong in liquid-carrying capability and methanol-tolerance capability; the method has the characteristics of being easy to operate, low in equipment and environment requirements, capable of easily realizing the industrial production, and high in the cost performance of the product.

Description

technical field [0001] The invention relates to a chemical additive for drainage and gas recovery in the field of oil and gas fields, in particular to a methanol-resistant foam drainage agent and a preparation process thereof. Background technique [0002] In the middle and later stages of natural gas well exploitation, due to the decrease of the formation energy of the gas well itself, formation water also enters the wellbore along with the natural gas, and accumulates at the bottom of the well or near the well, causing the gas production of the gas well to decrease or the gas well to be drowned by water, and damage the formation near the gas well. There are two main sources of formation water: one is the immersion of free water in the bottom of the formation, such as edge water, bottom water, and interlayer water; And the condensate water that appears. Therefore, in the production process of natural gas wells with water production, how to bring formation water out of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/584
CPCC09K8/584
Inventor 解永刚胡均志周继勇戚杰张磊刘伟赵轩刚马骞王娜徐东马连伟赖燕李晓芸刘三军张程虎胡培培
Owner 中国石油天然气股份有限公司长庆油田分公司第二采气厂