Drilling Experiments of Teeth-Shaped PDC Bit in Shenjingzi Oil Shale Mining Area of Songl iao Basin
详细信息
- 责任者：Zhang Xianzhen (College of Construction Engineering ; Jilin University ; Changchun 130026 ; China) ; Liu Baochang
- 刊名：Exploration Engineering
- 出版年：2011
- 卷期：38(8)
- 关键词：金刚石钻头 ; diamond bit
- 页码：p.64-67
- 图表：6 illus., 3 tables, 7 refs.
- 分类号：2000
- 出版序号：20122783
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
There are often dozens of layers of dolomite body or bands embedded in oil shale formation in Qingshankou and Nenjiang groups at Songliao Basin. In this paper, a new type of teeth-shaped PDC bit was designed and manufactured. Field drilling experiments using these teeth-shaped PDC bits were conducted and their drilling performances were compared with those of tungsten carbide bits. The results indicated that the new teeth-shaped PDC bit demonstrated high rate of penetration, high wear resistance and long service life while drilling in oil shale formation containing dolomite interlayer.