氮气钻完井施工涉及到多种氮气举升作业,其中较为常见的有气举排泥浆掏空井眼、气举干燥井眼、气举排油气求取产能及气举排冻胶投产等四种作业,本文从这四种气举工艺技术入手,针对目前吐哈油区氮气钻完井过程中气举作业的工艺现状,以马491井为例,具体介绍了实施氮气钻完井过程中的气举工况、工艺改进情况、气举技术和氮气钻完井技术。 Nitrogen gas drilling and completion construction involves a variety of nitrogen lifting operations, of which the more common gas drainage mud borehole, gas lift dry borehole, gas lift row to obtain production capacity and gas lift row gel production In this paper, starting from these four kinds of gas lift technology, aiming at the current status of gas lift operation in the process of nitrogen drilling and completion in Tuha oil zone, taking Ma 491 as an example, Gas lift conditions, process improvement, gas lift technology and nitrogen drilling and completion technology.