杨税务深潜山AT3井复合酸压改造工艺技术

余芳; 徐克彬; 郑立军; 付玥颖; 白田增; 李拥军; 才博

doi:10.3969/j.issn.1001-5620.2018.06.021

杨税务深潜山AT3井复合酸压改造工艺技术

doi: 10.3969/j.issn.1001-5620.2018.06.021

1. 渤海钻探井下作业公司, 河北任丘 062552;
2. 渤海钻探工程技术研究院, 河北任丘 062552;
3. 中国石油华北油田公司勘探事业部, 河北任丘 062552;
4. 中国石油勘探开发研究院廊坊分院, 河北廊坊 065007

基金项目:

中国石油渤海钻探工程公司重大工艺研究项目“杨税务潜山高温高压井酸压改造技术研究”（2017ZD11Y-03）

详细信息

作者简介:
余芳,现在主要从事酸化压裂技术设计及工艺研发等工作。E-mail:yufang03@cnpc.com.cn

通讯作者:
郑立军,z_lijun@cnpc.com.cn

中图分类号: TE357.12
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- 被引次数: 0
出版历程
- 收稿日期: 2018-10-05
- 刊出日期: 2018-11-30

Compounding Acid-Fracturing Techniques for Well AT3 in Yangshuiwu Deep Buried Hill Structure

1. Downhole Services Company BHDC, Renqiu, Hebei 062552;
2. Engineering Technology Research Institute, BHDC, Renqiu, Hebei 062552;
3. Exploration Division of PetroChina Huabei Oilfield Company, Renqiu, Hebei 062552;
4. Langfang Branch of PetroChina Research Institute of Petroleum Exploration and Development, Langfang, Hebei 065007

摘要

摘要: 廊固凹陷杨税务潜山奥陶系碳酸盐岩油气藏储层具有埋藏深、温度高、岩性致密、非均质性强等特点，实现有效改造、达到高产稳产的难度大。因此，研究了"多级注入酸压，纤维（颗粒）暂堵转向，加砂酸压"三项工艺，优选了"高温中性交联压裂液、高温清洁自转向酸、低摩阻滑溜水"3种措施液体系及暂堵转向（剂、球）技术，形成了具有耐高温、低摩阻的措施液体系，以及复合转向及多级注入加砂酸压工艺。在该区AT3井进行了现场应用，获得了日产气50×10⁴ m³，日产油35 t的良好效果，实现了均匀酸化、造复杂缝网、沟通远井区域优势储层、提高纵向动用程度、提高人工裂缝导流能力的目的，满足了该类型储层大型体积酸压改造的需求。
- 潜山油气藏 /
- 多级注入 /
- 暂堵转向 /
- 复合酸压 /
- 体积改造
Abstract: The Ordovician carbonate reservoir in the Yangshuiwu buried hill structure in Langgu sag is characteristic of deep burial, high temperature, compact lithology and high inhomogeneity etc., making it difficult to effectively stimulate the reservoir for high and stable production. Studies on "staged injection of acids for fracturing, temporary plugging with fiber (particles) for diverting and sand injection for acid-fracturing" have been conducted to address these problems. The studies gave birth to three choice stimulation fluids, which were "high temperature neutral crosslinking fracturing fluid, high temperature clean self-diverting acid and low-friction slick water", and a temporary plugging for diverting (spherical agent) technology. The well AT3, after applying these stimulation fluids and technology, produced 50×10⁴ m³ gas and 35 ton oil daily, realizing the objectives of uniform acidizing, complex fracture network construction, communication of favorable pay zones located far apart and improvement of vertical producing degree and conductivity of artificial fractures, and satisfying the requirements of large-scale volumetric acid fracturing of similar reservoirs.
- Buried hill petroleum reservoir /
- Staged injection /
- Temporary plugging for diverting /
- Compounding acid-fracturing /
- Volumetric stimulation

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