side-trackingBNC²³⁶²¹³⁺¹ 基本例句 侧转 This article introduces the engineering flow and technical measures for casing side-tracking of complicated accidental wells according to well B1 and characteristics of WZ12-1N oilfield. 文中结合涠洲12-1N油田特点，以 B1井为背景，介绍了复杂事故井套管开窗侧钻从准备到实施的整个工艺流程和技术措施。 cnki