Discussion of Borehole Wall Stability Technology in Broken Formation and the Practice
详细信息
- 责任者：Hu Jiliang (China University of Geosciences ; Beijing 100083 ; China) ; Tao Shixian
- 刊名：Exploration Engineering
- 出版年：2011
- 卷期：38(9)
- 关键词：井壁稳定 ; wellbore stability ; 复杂地层钻进 ; drilling in complicated formation
- 页码：p.30-32,64
- 图表：3 tables, 6 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
For the drilling construction in broken formation, it is important to improve the cementation of fractured rocks, rapidly seal the formation fracture to form whole borehole wall and use proper flush fluid for borehole wall stability. With anti-sloughing lost circulation agent while drilling and modified asphalt, the effective formation fracture sealing and higher borehole wall bearing strength can be obtained. The LBM and grafted starch flush fluid systems have good wall building property and rheological property with good application effect for the construction in broken formation. oft-com:office:office" />