西南石油大学学报(自然科学版) ›› 1995, Vol. 17 ›› Issue (2): 78-84.DOI: 10.3863/j.issn.1000-2634.1995.02.12

• 油气藏工程 • 上一篇    下一篇

用屏蔽桥堵技术提高长庆油田洛河组漏层的承压能力

蒲晓林 罗向东 罗平亚
  

  1. (石油工程系)
  • 收稿日期:1994-11-15 修回日期:1900-01-01 出版日期:1995-04-20 发布日期:1995-04-20

Compressive Strength of Luochezu Lost-Circulation Formation in Changqing Oilfied

Pu Xiao-lin Luo Xiang-dong Luo Ping-ya

  

  1. (Dept of Petroleum Engineering)
  • Received:1994-11-15 Revised:1900-01-01 Online:1995-04-20 Published:1995-04-20

摘要:

针对长庆油田陇东地区易漏失的洛河组砂岩物性特点,利用屏蔽桥堵原理开展试验研究,通过调整碳酸钙的粒度分布,选择惰性降失水剂作填充粒子,建立了合理的桥堵体系。室内和现场试脸表明,该体系能够提高漏层的承压能力,满足钻井、固井工程施工的要求。


关键词: 屏蔽, 堵漏, 桥塞封堵, 封堵剂, 长庆油田

Abstract:

In view of the lost—circulation physical property of Luohezu sandstone in Eastern Gansu axes of Changqing Oilfield,an esperimental study is made by using the bridge—shielding principle. A reasonable bridge plugging system is set up on the basis of the adjustment of the size distribution of calcium ,carbonate and the choice of water—loss control agent as filling agent. The tests both in lab and on site show that this system can improve the compressive strength of the lost—circulation formation and meet the needs of drilling and well cementation project construction.

Key words: Shielding, Loss circulation control, Loss circulation material, Bridge plugging, Changqing Oilfield

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