随着油田的不断开发,油井的情况越来越复杂,在油气田开发过程中,经常会遇到高压油气水层,极易发生井喷和井喷失控,甚至导致着火爆炸事故。因此,现阶段井下施工作业的井控技术是必要的,及时发现溢流是井控技术的关键环节。通常人们所理解的溢流都是液体流体溢流出井口的情况,忽视了气体溢出井口的情况,由于气体和液体两相流在井筒内的复杂情况,当发现液体溢出井口的时候而无法控制,导致井喷或井喷失控的发生。 With the continuous development of oilfields, the situation of oil wells is more and more complicated. During the development of oil and gas fields, high-pressure oil-gas water layers are often encountered, which are prone to blowout and blowout uncontrollability and even lead to fire and explosion accidents. Therefore, well control technology of underground construction operation at this stage is necessary, and timely detection of overflow is a key link of well control technology. It is commonly understood that the overflow is the case of liquid fluid overflowing the wellhead and neglecting the gas spill over the wellhead. Due to the complexity of the gas-liquid two-phase flow in the wellbore and uncontrollable liquid overflowing the wellhead, Blowout or blowout led to the occurrence of uncontrolled.