人工举升

重写人工升力战略手册

运营商正在转向采用新的气举和纳米颗粒流体技术来提高生产率。

纳米比亚近海的海上钻井平台和油轮。
来源:Poco_bw/Getty Images/iStockphoto。

人工举升面临的挑战与它们所支持的油井和油藏一样多种多样。在海上油气田,重点可能在于如何最大限度地提高老旧深水完井装置的产量,而在页岩油气田,障碍通常在于高含水率和结垢问题。

正如以往一样,业界正在开发新的方法来解决这些问题。从自适应气举系统、深埋式智能气举跨接装置、纳米颗粒基流体到表面活性剂辅助气举,运营商正在海上和陆上环境中部署新的人工举升技术,以提高产量,这些内容在10月份举行的SPE年度技术会议暨展览会上进行了详细介绍。

传统的天然气举升技术长期以来一直是提高石油产量的行业首选解决方案,但该技术的一些不足之处促使北海的一家运营商寻求一种改进方案。

阿克尔BP公司高级石油工程师埃文德·萨缪尔森表示,该公司在挪威近海油田对自适应气举系统(AGLS)进行试点测试后,该技术已达到技术成熟度7级(TRL7),这是最高成熟度级别。他在ATCE技术会议上发言时表示,阿克尔BP计划在同一油田的11口井中安装AGLS系统,以验证该技术的价值。

他告诉JPT,这些油井从一开始就将采用一刀切的自适应气举方案。

AGLS 的研发始于 2019 年,当时 Aker BP 致力于克服传统气举系统的局限性。

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Artificial lift

Rewriting the Artificial Lift Playbook

Operators are turning to new gas lift and nanoparticle-fluid technologies to drive up production rates.

Offshore drilling platforms and tankers offshore the coast of Namibia.
Source: Poco_bw/Getty Images/iStockphoto.

Artificial lift challenges are as varied as the wells and reservoirs they support. Offshore, the focus may be on maximizing production from aging deepwater completions, while in shale plays the obstacles often involve high water cut and scale.

True to form, the industry is developing novel ways to answer these problems. From adaptive gas lift systems, deep-set intelligent gas lift straddles, and nanoparticle-based fluids to surfactant-assisted gas lift, operators are deploying new artificial lift technologies in offshore and onshore settings to drive up production rates, as detailed during SPE’s Annual Technical Conference and Exhibition in October.

Conventional gas lift has long been an industry go-to solution for increasing oil production, but some shortcomings associated with the approach prompted a North Sea operator to seek out a variation on the theme.

Eivind Samuelsen, a senior petroleum engineer at Aker BP, said that after pilot testing by the operator on an adaptive gas lift system (AGLS) at a field offshore Norway, the technology had reached Technology Readiness Level 7 (TRL7), which is the highest readiness level. Speaking during an ATCE technical session, he said Aker BP plans to install AGLS in 11 wells in that same field to demonstrate the tech’s value.

He told JPT the wells will have one-fits-all adaptive gas lift scenarios from day 1.

Development of the AGLS started in 2019 as Aker BP strove to overcome limitations of conventional gas lift systems.

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