基于刺激响应策略的可控滑溜水研究

李远照; 李婷; 王犁; 戴姗姗

doi:10.3969/j.issn.1001-5620.2020.06.018

基于刺激响应策略的可控滑溜水研究

doi: 10.3969/j.issn.1001-5620.2020.06.018

1. 中石化重庆涪陵页岩气勘探开发有限公司, 重庆 408014;
2. 西南石油大学化学化工学院, 成都 610500

基金项目:

四川省科技厅项目“CO2开关溶剂体系在油固分离应用中的研究”（2020YJ0343）

详细信息

作者简介:
李远照，高级工程师，1978年生，毕业于中国石油大学（北京），现在从事酸化、压裂技术研究工作。E-mail：108240003@qq.com

中图分类号: TE357.12
计量
- 文章访问数: 1081
- HTML全文浏览量: 386
- PDF下载量: 47
- 被引次数: 0
出版历程
- 收稿日期: 2020-09-12
- 刊出日期: 2020-12-28

Study on Controllable Slick Water Based on Stimulus Response Strategy

1. Chongqing Fuling Shale Gas Exploration and Production Corporation, Sinopec, Chongqing 408014;
2. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500

摘要

摘要: 在一些地质条件复杂、低孔低渗、地层压力系数低的区域，存在一些较为严峻的问题，如气藏储层发育的微纳米级孔隙、喉道窄小、排驱压力高、连通性差等。这些问题将导致水锁损害和压裂返排液返排更难。针对这些问题，将刺激响应的表面活性剂引入到疏水缔合聚合物的水溶液系统中，从而赋予了滑溜水体系黏度的可控性，体系最高减阻率可以达到78.1%。在调控下，液体返排难度大大降低，地层伤害也进一步降低。动态光散射实验可以证明，表面活性剂分子可以在不同pH值条件下组装成为不同的结构，疏水缔合聚合物可以和这些结构相互作用，从而实现滑溜水黏度的调节。该滑溜水体系有着良好的减阻性能和防膨能力。
- 滑溜水 /
- 表面活性剂 /
- 黏度可控 /
- 聚合物
Abstract: In some areas with complicated geological conditions, low porosity, low permeability and low formation pressures, tough problems such as gas reservoirs developed with micron and nanometer sized pores, narrow pore throats, high displacement pressures and poor connectivity etc. are often encountered, which inevitably result in serious damage to water block ability and more difficulties in flowing back fracturing fluids. To solve these problems, stimulus response surfactants were introduced into the water solution of hydrophobic associating polymers to render slick water controllable viscosity. The friction of the slick water formulated can be reduced by 78.1%. The difficulties of flowing back the slick water were greatly mitigated through regulation and control, and formation damage was further reduced. Dynamic light scattering experiment was used to prove that the molecules of the surfactants can be assembled into different structures at different pH values. The hydrophobic associating polymers can interact with these structures to realize the viscosity control of the slick water. The slick water system formulated has good friction reducing property and swelling inhibition ability.
- Slick water /
- Surfactant /
- Viscosity controllable /
- Polymer

HTML全文

参考文献(8)

[1]	王改红, 李泽锋, 高燕, 等. 一种功能型滑溜水体系开发及应用[J]. 钻井液与完井液, 2019, 36(2):257-260. WANG Gaihong, LI Zefeng, GAO Yan, et al. Development and application of a functional slick water[J].Drilling Fluid & Completion Fluid,2019,36(2):257-260.
[2]	岳野. 大型压裂施工返排液处理及再利用工艺研究[D]. 东北石油大学, 2019. YUE Ye.Dispose and reutilization technology research for the returns of large-scale fracturing[D]. Northeast Petroleum University, 2019.
[3]	何定凯. 低表面张力滑溜水在低压致密气藏中的应用[J]. 油田化学, 2018, 35(4):634-637. HE Dingkai.Application of low surface tension slick water in low pressure tight gas reservoir[J].Oilfield Chemistry, 2018, 35(4):634-637.
[4]	段贵府, 何春明, 才博, 等. 滑溜水在裂缝性碳酸盐岩体积酸压中的研究与应用[J]. 钻井液与完井液, 2019, 36(4):512-516 , 521. DUAN Guifu, HE Chunming, CAI Bo, et al. Research and application of slickwater in volume acid fracturing of fractured carbonate formation[J].Drilling Fluid & Completion Fluid, 2019, 36(4):512-516, 521.
[5]	闫秀, 龚起雨, 胡光, 等. 适应于高碳酸盐岩页岩气藏酸性滑溜水研究与应用[J]. 化学世界,2019,60(10):726-732. YAN Xiu, GONG Qiyu, HU Guang, et al. Research andapplication of acidic slickwater in high carbonate shale gasreservoir[J].Chemical World, 2019, 60(10):726-732.
[6]	霍丙夏, 郭丽梅, 管保山, 等. 快速增黏滑溜水降阻剂的研制[J]. 现代化工, 2016, 36(1):78-81 , 83. HUO Bingxia, GUO Limei, GUAN Baoshan, et al. Development of resistance-reducing agent with rapid thickening property for slick-water[J].Modern Chemical Industry, 2016, 36(1):78-81, 83.
[7]	胡菲菲. 延长陆相页岩气储层滑溜水压裂液及其携砂能力研究[D]. 西安石油大学, 2014. HU Feifei. Yanchang shale gas reservoir slick-water fracturing fluid and its proppant carrying capacity[D]. Xi'an Shiyou University, 2014.
[8]	范宇恒, 丁飞, 余维初. 一种新型抗盐型滑溜水减阻剂性能研究[J]. 长江大学学报(自然科学版), 2019, 16(9):49-53, 62. FAN Yuheng, DING Fei, YU Weichu. Study on the performance of a new salt-resistant slippery water drag reducer[J].Journal of Yangtze University(Natural Science Edition), 2019, 16(9):49-53, 62.