| 摘要: |
| 针对四川盆地高磨地区灯影组碳酸盐岩Ⅰ、Ⅱ、Ⅲ储层,通过转向酸变黏峰值黏度、双岩心酸化效果、转向压力等室内实验结果分析表明高酸浓度变黏型转向酸对于Ⅱ、Ⅲ类储层具有更好的转向效果,现场试验最大转向压力10 MPa；低酸浓度变黏型转向酸对于Ⅰ类储层具有更好的转向效果,现场试验最大转向压力12 MPa。 |
| 关键词: 高磨地区 酸化 转向酸 封堵压力 峰值黏度 |
| DOI：10.3969/j.issn.1007-3426.2019.02.012 |
| 分类号: |
| 基金项目: |
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| Research of steering acid type selection and its application in Gao-Mo block Dengying formation of Sichuan Basin |
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Sun Chuan1, Liu Youquan1, Yang Zhijun2, He Chunlin3, Mei Zhihong4
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1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2. Sichuan Meishan Natural Gas Co., Ltd., Meishan, Sichuan, China;3. Material and Equipment Management Department, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;4.Northeastern Sichuan Gas District,PetroChina Southwest Oil and Gasfield Company, Dazhou, Sichuan, China
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| Abstract: |
| Aiming at the carbonate rockⅠ, Ⅱ, Ⅲ reservoirs in Gao-Mo block Dengying formation of Sichuan Basin, and on the basis of analyzing experimental results of the peak viscosity, the double core acidification effect and the steering pressure, it is clear that the high acid concentration variable viscosity steering acid has a better steering effect for the class II and III reservoirs, the maximum steering pressure is 10 MPa in field test; the low acid concentration visbreaking type acid has a better steering effect for class I reservoir, and the maximum steering pressure is 12 MPa in the site test. |
| Key words: Gao-Mo block acidizing effect diverting acid plugging pressure peak viscosity |
