• 责任者：Jing Long (No.4 Team of Hydrogeology and Engineering Geology ; Hebei Provincial Bureau of Geo-Exploration and Mineral Development ; Cangzhou 061000 ; China) ; Yang Yongming
• 刊名：Exploration Engineering
• 出版年：2009
• 卷期：36(7)
• 关键词：地热井 ; geothermal wells ; 成井工艺 ; well completion technology
• 页码：p.28-32
• 图表：5 illus., 4 refs.
• 分类号：2000
• issnNo：ISSN1672-7428
• isbnNo：CN11-5063/TD

High sand content rate and unstable borehole wall exist in common geological well in Renqiu, and the gradation of φ178 mm pipe and 311 mm diameter was chosen for the first gravel-filled geological well in this area. Borehole construction was completed under the logging instrument monitoring and mud property control; well construction was completed by-breaking mud layer of the wall and gravel-filling in static water level. It was proved the construction technology was feasible and quality of well completion was reliable by operation test.