泡沫压裂液压裂增产提高煤层渗透性实验研究  

Experimental Study on Increasing Production and Improving Coal Seam Permeability by Fracturing with Foam Fracturing Fluid

作　　者：张仰强 ZHANG Yangqiang(State Key Laboratory of Coal Mine Disaster Prevention and Control,Chongqing 400037,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China)

机构地区：[1]煤矿灾害防控全国重点实验室,重庆400037 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《当代化工》2024年第11期2588-2592,共5页Contemporary Chemical Industry

基　　金：重庆市自然科学基金项目(项目编号:CSTB2023NSCQ-MSX0577);中国煤炭科工集团有限公司科技创新创业资金专项重点项目(项目编号:2022-2-TD-ZD009)。

摘　　要：为了满足不断增长的全球能源需求,石油行业已将注意力转向提高煤层气采收方法。泡沫压裂增透是其中一种方法。利用纳米颗粒构建持久的纳米颗粒稳定泡沫,在室温和高温下研究了离子表面活性剂对有无二氧化硅纳米粒子的泡沫稳定性的影响,并分析了发泡性、泡沫质地和形态。结果表明:当质量分数为1%~3%的MgCl_(2)存在时,AOS表面活性剂泡沫的泡沫高度为19~21 cm,使用纳米粒子存在最佳的纳米粒子质量分数,泡沫稳定性增加。研究纳米颗粒-表面活性剂体系对于采用泡沫压裂提高煤层渗透性具有一定指导意义。In order to meet the growing global energy demand,the petroleum industry has turned its attention to enhanced coalbed methane recovery methods.Foam fracturing to increase penetration is one of these methods.In this paper,long-lasting nanoparticle-stabilized foam with nanoparticles was construct,the effect of ionic surfactants on foam stability with and without silica nanoparticles at room temperature and high temperature was investigated,foaming properties,foam texture and morphology were analyzed.The results showed that the foam height of AOS surfactant foams in the presence of mass fraction 1%~3%MgCl2 was 19~21 cm,and the foam stability was increased using nanoparticles in the presence of optimum nanoparticle mass fraction.The study of nanoparticle-surfactant system has some guiding significance for improving the permeability of coal seams.

关 键 词：煤层增透 压裂 泡沫 纳米颗粒 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]