
中国石油网消息:截至3月30日,长庆油田连续管完井技术累计应用突破1600口井。该技术与常规带压作业完井技术相比,完井周期缩短50%以上,采气综合成本降低15%,实现了“技术红利”转化为“效益增量”。
China Oil News: As of March 30th, the continuous pipe well completion technology of Changqing Oilfield has been applied to over 1,600 wells. Compared with the conventional pressure-bearing operation well completion technology, this technology shortens the well completion cycle by more than 50% and reduces the overall gas production cost by 15%, achieving the transformation of "technological benefits" into "increased efficiency".
长庆油田致密气藏具有低渗、低压、低丰度的典型特征,传统完井方式在气井全生命周期管理中面临挟液能力不足、后期作业成本高等难题。针对这一开发挑战,长庆油田创新形成了连续管完井技术。
The tight gas reservoirs in the Changqing Oilfield exhibit typical characteristics of low permeability, low pressure and low abundance. The traditional well completion methods encounter problems such as insufficient liquid-carrying capacity and high costs in the entire life cycle management of gas wells. To address this development challenge, the Changqing Oilfield has innovatively developed the continuous pipe well completion technology.
连续管完井技术自推广应用以来持续迭代升级。
The continuous tubing well completion technology has undergone continuous iterations and upgrades since its popularization and application.
2022年,针对卡瓦式节流器打捞成功率低的问题,科研团队成功研制可投捞预置式节流器,有效解决了后期作业难题。
In 2022, in response to the low success rate of retrieving the Kawa-type throttling device, the research team successfully developed a retrievable preset throttling device, effectively solving the problems encountered in subsequent operations.
2023年,在连续管完井技术基础上,长庆油田创新形成了以“直径50.8毫米连续管+节流器+柱塞”为核心的连续管完井采气一体化技术,使气井挟液能力提升30%,自然连续生产时间延长1.5年。
In 2023, based on the continuous pipe well completion technology, the Changqing Oilfield innovatively developed an integrated continuous pipe well completion gas production technology centered on "a 50.8-millimeter diameter continuous pipe + choke + plunger", which enhanced the liquid-carrying capacity of gas wells by 30% and extended the natural continuous production period by 1.5 years.
2024年,团队进一步攻关,创新研发智能完井采气一体化工具,利用井下压力自感应实现滑套自动启闭控制,工具功能转换成功率超90%,实施成本进一步降低,标志着连续管完井技术正式迈入“智能时代”,为致密气藏高效开发提供了全新的技术路径。
In 2024, the team made further efforts and innovatively developed an integrated tool for intelligent well completion and gas production. By utilizing the self-induced pressure in the wellbore, the sliding sleeve could automatically open and close. The success rate of tool function conversion exceeded 90%, and the implementation cost was further reduced. This marked that the continuous pipe well completion technology officially entered the "intelligent era", providing a brand-new technical path for the efficient development of tight gas reservoirs.

