| 摘要: |
| 川西地区部分油气储层埋藏深(7000 m左右)、地层温度高(160℃以上),要求压裂液体系具有良好的耐温耐剪切性能。通过优选对压裂液耐温耐剪切性能影响较大的添加剂,并完成相关评价,形成了可以满足160℃和180℃储层施工的超高温压裂液体系。该配方体系在160℃和180℃分别连续剪切120 min之后,粘度仍然可以保持在100 mPa.s以上,满足了超深井压裂改造的需要,填补了川西地区超高温压裂液的空白。 |
| 关键词: 超高温 超深井 复合交联剂 超高温稠化剂 |
| DOI： |
| 分类号:TE357.12 |
| 基金项目: |
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| Research on the Ultra—High Temperature Fracturing Fluid Formula System |
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Huang Guicun, Ma Fei, Li Hongbo
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Engineering Technology Institute of South West Petroleum Branch, Sinopec
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| Abstract: |
| Some reservoirs in western Sichuan are deeply buried about 7000m, the temperatures are higher than 160°C, which require that fracturing fluid system has a good temperature and shearing resistance. By optimizing and evaluating the additive which have a significant impact on the temperature and shearing resistance of fracturing fluid, ultra—high temperature fracturing fluid system is formed which can withstand 160°C and 180°C reservoir operation.This formulation can keep enough viscosity above 100mPa. s after it has been sheared for 120 minutes at 160°C and 180°C. This system can meet the requirement of super—deep fracturing well, and fill in the blanks of ultra—high temperature fracturing fluid in western Sichuan. |
| Key words: ultra—high temperature ultra—deep well compound crosslinking agent ultra—high temperature thickener |
