可测量阀底压力的Φ244.5 mm井下套管封井器研制
高本文, 侯玉琦, 宁世品
DEVELOPMENT OF THE OUTSIDE DIAMETER OF 244.5MM MEASURABLE PRESSURE BELOW VALVE ANNULUS SAFE VALVE
新疆石油天然气 . 2009, (3): 79 -82 .