西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (3): 45-47.DOI: 10.3863/j.issn.1000-2634.2004.03.012

• 石油与天然气工程 • 上一篇    下一篇

焉耆盆地八道湾组储层复合酸酸化技术

邢德刚1 姚奕明1 胡学斌1 王解芳2   

  1. (1.中国石化河南石油分公司工程技术研究院,河南南阳473132; 2.河南石油分公司炼油厂)
  • 收稿日期:2003-01-21 修回日期:1900-01-01 出版日期:2004-06-20 发布日期:2004-06-20
  • 通讯作者: 邢德刚

COMPOUND-ACID TREATMENT IN BODAOWAN FOR-MATION OF YANQI BASIN

XIN De-gang 1 YAO Yi-ming 1 HU Xue-bin1 et al.
  

  1. (Petroleum Engineering & Technology Re-search Institute of Henan Oilfield 473132, China)
  • Received:2003-01-21 Revised:1900-01-01 Online:2004-06-20 Published:2004-06-20
  • Contact: XIN De-gang

摘要: 针对焉耆盆地深层系八道湾组低渗透储层特征,提出了储层酸化改造的酸液体系的基本要求,按照石油天然气行业标准进行了大量的室内实验评价工作,确定了酸液类型和浓度,筛选了缓蚀剂、铁离子稳定剂、粘土稳定剂和助排剂等酸液添加剂,研究出一种具有缓速、对地层低伤害、增产效果明显的复合酸酸液配方。同时研究出多次冲压施工工艺,现场施工9井次,工艺成功率100%。T3井、T301井酸化后获得工业油气流,具有较大的经济效益和社会效益。

关键词: 焉耆盆地, 八道湾组, 砂岩储层, 复合酸, 酸化

Abstract: Basic requirements of acid fluid for acidizing treatment were analyzed in this paper based on the Badaowan formation with low-permeability in Yanqi Basin. a lot of experimental evaluations were made according to the oil and gas industry standard of China, and the type and concentration of the acid liquid
were determine. A compound-acid with good retarded property,low damage for the formation and excellent stimulation effect was given though choosing corrosion inhibitor, iron-control agent, clay stabilizer and cleanup additive in laboratory. A new acidizing technique was introduced and improved. The com-
pound acid fluid and technology was successfully practiced 9 wells, and the great economic and social benefit was got.

Key words: Yanqi bansin, Badaowan formation, sand-stone reservoir, compound-acid, acidizing treatment