气井温度响应型自消泡智能泡排剂的合成及性能评价

杜竞; 陈君; 毛玉昆; 许鸷宇; 廖丽; 冶克杰; 李刚; 侯宝峰

doi:10.3969/j.issn.1006-6535.2025.04.016

特种油气藏 >

2025 , Vol. 32 >Issue 4: 136 - 142

DOI: https://doi.org/10.3969/j.issn.1006-6535.2025.04.016

钻采工程

气井温度响应型自消泡智能泡排剂的合成及性能评价

杜竞 ,
陈君 ,
毛玉昆 ,
许鸷宇 ,
廖丽 ,
冶克杰 ,
李刚 ,
侯宝峰

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1.中国石油青海油田分公司油气工艺研究院,甘肃敦煌 736202;
2.中国石油青海油田分公司采气一厂,青海格尔木 816000;
3.长江大学油气钻采工程湖北省重点实验室,湖北武汉 430100

杜竞(1985—),男,高级工程师,2008年毕业于西南石油大学信息与计算科学专业,2011年毕业于该校石油工程专业,获硕士学位,现从事采气工艺研究工作。

收稿日期: 2024-06-02

修回日期: 2025-05-15

网络出版日期: 2025-09-03

基金资助

国家自然科学基金“纳米颗粒协同阳-非离子Gemini表活剂润湿反转体系的构筑及其机理研究”(51704036)

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Synthesis and performance evaluation of a temperature-responsive self-defoaming intelligent gas drainage foaming agent for gas wells

DU Jing ,
CHEN Jun ,
MAO Yukun ,
XU Zhiyu ,
LIAO Li ,
YE Kejie ,
LI Gang ,
HOU Baofeng

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1. PetroChina Qinghai Oilfield Company, Oil and Gas Process Research Institute, Dunhuang, Gansu 736202, China;
2. PetroChina Qinghai Oilfield Company, No.1 Gas Production Plant, Golmud, Qinghai 816000, China;
3. Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering, Yangtze University, Wuhan, Hubei 430100, China

Received date: 2024-06-02

Revised date: 2025-05-15

Online published: 2025-09-03

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摘要

为解决排水采气工艺中起泡剂和消泡剂用量过大、消泡不彻底、工艺复杂等问题,研制了一种气井温度响应型自消泡智能泡排剂TS-1,并对其性能进行了评价。研究表明:在温度为80 ℃、矿化度为20×10⁴ mg/L的条件下,泡排剂有较好的起泡性能和稳定性;质量分数为0.2%的泡排剂溶液能够在20 ℃左右自身完成相态的转变,由起泡性转变为消泡性,起泡体积达到420 mL,泡沫半衰期达到13 min;地层砂对泡排剂溶液的起泡能力影响较小,携液率达到84.8%,20 min后自消泡率达到84.3%;在加入增效剂ESAB后,自消泡率接近100.0%,自消泡能力提升;气井自消泡智能泡排剂在井口位置及地面管线中,受环境温度的影响,可迅速自消泡,避免了加入消泡剂的步骤,简化了操作流程,并有效提高了泡沫排水作业的效率。自消泡智能泡排剂成功应用后,平均日增产气4 000 m³,平均日增排液2.8 m³,增气排液效果明显。该成果为气井排水采气提供了一种新的技术思路,具有重要的矿场应用价值。

关键词： 泡排剂; 温度敏感型; 排水采气; 自消泡; 气井

本文引用格式

杜竞 , 陈君 , 毛玉昆 , 许鸷宇 , 廖丽 , 冶克杰 , 李刚 , 侯宝峰 . 气井温度响应型自消泡智能泡排剂的合成及性能评价[J]. 特种油气藏, 2025 , 32(4) : 136 -142 . DOI: 10.3969/j.issn.1006-6535.2025.04.016

Abstract

To solve the problems of excessive consumption of foaming agents and defoaming agents, incomplete defoaming, and complex processes in liquid drainage gas production technology, a gas well temperature-responsive self-defoaming intelligent gas drainage foaming agent TS-1 was developed, and its performance was evaluated. The study shows that the foaming agent has good foaming performance and stability at a temperature of 80 ℃ and a salinity of 20×10⁴ mg/L; a 0.2% foaming agent solution can undergo a phase transition by itself around 20 ℃, changing from foamability to defoamability, with a foam volume reaching 420 mL and a foam half-life reaching 13 minutes; formation sand has little effect on the foaming ability of the foaming agent solution, with a liquid-carrying rate of 84.8%. After 20 minutes, the self-defoaming rate reached 84.3%; after adding the synergistic agent ESAB, the self-defoaming rate approached 100%, and the self-defoaming ability was enhanced; at the wellhead position and in surface pipelines, the self-defoaming intelligent foaming agent for gas wells can rapidly self-defoam under the influence of ambient temperature, avoiding the step of adding defoaming agents, simplifying the operation process, and effectively improving the efficiency of foam drainage operations. After the successful application of the self-defoaming intelligent foaming agent, the average daily gas production increase was 4 000 m³, and the average daily liquid discharge increase was 2.8 m³, showing significant gas increase and liquid discharge effects. This achievement provides a new technical approach for gas well liquid drainage gas production and has important field application value.

Key words： gas drainage foaming agent; temperature-sensitive; liquid drainage gas production; self-defoaming; gas well

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