关爱孤儿:多元化眼睛成长,创新P&A服务

随着 Diversified 扩大其 P&A 业务,该公司预计会探索创新方法。

Diversified Energy Co. Plc 在 2022 年的大部分时间里收购了堵塞和废弃 (P&A) 公司,以管理自己的油井并将服务扩展到其他勘探和生产公司。但这是一个充满繁文缛节的行业。

该公司通过两项立法为各州的 P&A 服务提供资金,从而获得了优势,但这些州的法规杂乱无章,阻碍了它们的创新能力。

该公司希望让各州了解该行业的优势,使他们能够改进更具成本效益的 P&A 技术。

2022 年,Diversified 收购了三个封堵服务公司——ext Level Energy、Nick's Well Plugging and Contractor Services Inc.,以扩大公司的垂直整合战略并控制内部 P&A 要求的成本。


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Diversified Energy 收购俄亥俄州 Nick’s Well Plugging

多元化能源公司收购第三家阿巴拉契亚封堵公司


凭借 Diversified 广泛的封堵能力,该公司已从仅仅满足自己的封堵要求,转变为为州和第三方公司封堵孤井。

过去两年,联邦政府向各州拨款约 2500 万美元,用于处理积压的废弃油井。这些资金是通过最近通过的《减少通货膨胀法案》和《2021 年基础设施投资和就业法案》分配的,旨在解决废弃孤井的环境问题。

美国内政部已在全国范围内确定了 10,000 个高度优先的井场,准备立即进行修复工作。2021 年,各州在国有和私人土地上发现了超过 129,000 口废弃井。

多元化并不直接接受联邦资金来堵塞自己的油井。内政部向各州提供 P&A 服务补助金,然后由各州通过竞标过程进行管理。Diversified Energy 执行副总裁兼首席运营官布拉德·格雷 (Brad Gray) 表示,如果 Diversified 中标,该公司将堵塞油井,各州则为其服务付费。  

Diversified 将其 P&A 服务限制在阿巴拉契亚盆地。每个州的法规都规定了堵井的过程、材料和技术。

格雷说,这可能是一个问题,因为堵塞技术几十年来都是一样的。他继续说,石油和天然气行业的创新主要集中在钻井和完井方面,很少关注或资助提高封堵效率。

为了堵塞一口井,Diversified 拆除了垂直井眼中的管道并用水泥填充孔。格雷表示,只要州监管机构愿意更愿意接受,就可以找到更好的替代方案。

“确实需要与行业和监管机构建立合作伙伴关系,以改变和更新一些指导和规定油井堵塞方式的法规,”他说。“我们对这个机会感到兴奋,并且真的认为这个行业可能会发生一些好的变化。”

创新技术

堵漏技术的改进有助于克服 P&A 服务的常见挑战。对于已经生产了 50 年或更长时间的井,地表以下的管道可能会恶化,有时在尝试拆除管道时会破裂。然后操作员必须使用额外的工具来拆除分离的管道。

“我们认为有机会使用不同的材料和技术,并寻找不同的方法,以更有效、更具成本效益的方式获得相同的效果,”格雷说。“为了实现这一目标,我们相信作为一个行业,我们可以想出更好的方法来做到这一点,但各州需要能够与我们合作改变法规,以便它们能够得到实施。” �

布拉德·格雷
(来源:多元化)

“我认为我们的团队在阿巴拉契亚山脉的填海方面做得很好。春季生长季节结束后,你可以回到那个井场所在的地方,你甚至无法分辨出那里曾经有一口井。”——布拉德·格雷(Brad Gray),多元化

井筒和地下水位之间的相互作用也会产生环境问题。堵塞井可以消除泄漏或排放的可能性,并防止井眼损坏地下地层。格雷说,地面设备也被拆除,以消除废弃地面设备与人之间的互动,例如可能会遇到该地点的土地所有者。

“我认为我们的团队在阿巴拉契亚山脉的填海方面做得很好,”格雷说。“过了一个春天的生长季节,你再回到那个井场的地方,你甚至都看不出那里曾经有过一口井。”

格雷说,从环境角度来看,多元化拥有的油井不会对周围环境产生负面影响。

“有些人会试图描绘不同的景象,但根据我们在阿巴拉契亚盆地拥有的大量油井的经验,我们已经测试了这些油井,它们对环境的影响很小,”他加了。

虽然 Diversified 在阿巴拉契亚以外的盆地(包括俄克拉荷马州、路易斯安那州和德克萨斯州)拥有生产资产,但 Diversified 并不在阿巴拉契亚以外的地区提供 P&A 服务。尽管该公司预计短期内不会将 P&A 服务移至盆地之外,但也没有计划放慢即将到来的堵塞速度。

Diversified 目前拥有 15 座钻机,其中 1 座是服务钻机,14 座专用于堵漏钻机。该公司雇用 12 名工作人员来操作其 P&A 钻机。到 2023 年 3 月,Diversified 预计人员配备齐全,以便该公司能够运行所有 14 台钻机。

 
原文链接/hartenergy

Taking Care of Orphans: Diversified Eyes Growth, Innovation of P&A Services

As Diversified expands its P&A operations, the company anticipates exploring innovative approaches.

Diversified Energy Co. Plc spent the better part of 2022 buying up plugging and abandonment (P&A) companies to handle their own wells and extend services to other E&Ps. But it’s a business that comes with its share of red tape.

The company got a leg up through two pieces of legislation that help fund P&A services for states, but those same states have a hodgepodge of regulations that hamper their ability to innovate.

The company hopes to educate states to the industry’s strengths, enabling them to refine P&A techniques that are also more cost-effective.

In 2022, Diversified acquired three plugging services—Next Level Energy, Nick’s Well Plugging and Contractor Services Inc.—to expand the company’s strategy of vertical integration and control the costs of internal P&A requirements.


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With Diversified’s extensive plugging capabilities, the company has gone from solely handling its own plugging requirements to capping orphan wells for states and third-party companies.

In the past two years, the federal government earmarked about $25 million to states to work through a backlog of abandoned wells. Those funds were allocated through the recently passed Inflation Reduction Act and 2021’s Infrastructure Investment and Jobs Act, which seek to address environmental concerns over abandoning orphan wells.

The U.S. Department of Interior has identified 10,000 high-priority well sites across the country ready for immediate remediation efforts. In 2021, states identified more than 129,000 orphaned wells on state and private land.

Diversified does not directly receive federal funds to plug its own wells. The Interior Department awards P&A service grants to states, who then administer them in a competitive bidding process. If Diversified wins the bid, the company plugs the wells, and the states pay for its services, said Brad Gray, executive vice president and COO of Diversified Energy.  

Diversified confines its P&A services to the Appalachian Basin. Regulations within each state dictate the process, materials and techniques to plug wells.

That can be a problem because plugging techniques have been the same for decades, Gray said. Innovation in the oil and gas industry has mainly been upon drilling and completing wells, with little focus or funding on improving plugging efficiency, he continued.

To plug a well, Diversified removes the piping in the vertical wellbore and fills the hole with cement. Gray said better alternatives could be available as long as state regulators are willing to be more receptive.

“There does need to be a partnership with industry and with regulatory authorities to change and update some of the regulations that guide and dictate how wells are plugged,” he said. “We're excited about that opportunity and really think there can be some good changes to the industry.”

Innovative techniques

Improvements to plugging techniques could help overcome common challenges to P&A services. With wells that have been producing for 50 years or more, piping below the surface can deteriorate and sometimes break apart during attempts to remove it. Operators then have to go in with additional tools to remove the separated piping.

“We think there’s an opportunity to use different materials and techniques and look at different ways to get the same effect in a more efficient, cost-effective manner,” said Gray. “In order to achieve that, we believe as an industry we can come up with better ways to do it, but the states are going to need to be able to work with us to change the regulations so that they can be implemented.”

Brad Gray
(Source: Diversified)

“We think that our team does a great job with reclamation generally within the Appalachian. After a spring growing season, you can go back to where that well site was, and you really can't even tell there was ever a well there.” – Brad Gray, Diversified

Interactions between a wellbore and water table can also create environmental issues. Plugging a well eliminates the possibilities of leaks or emissions and prevents the wellbore from damaging subsurface formations. Surface equipment is also removed to eliminate interactions between abandoned surface equipment and people, such as the landowner, who might come across the site, Gray said.

“We think that our team does a great job with reclamation generally within the Appalachian,” said Gray. “After a spring growing season, you can go back to where that well site was, and you really can't even tell there was ever a well there.”

From an environmental perspective, Diversified-owned wells don’t contribute negatively to their surroundings, Gray said.

“There’s some people who would try to paint a different picture, but from our experience with the large inventory of wells that we own in the Appalachia Basin, we have tested these wells, and they have very little environmental impact,” he added.

While Diversified has producing assets in basins outside Appalachia, including Oklahoma, Louisiana and Texas, Diversified doesn’t conduct P&A services outside of Appalachia. Though the company does not anticipate moving P&A services outside of the basin any time soon, there are no plans on slowing down plugging on the horizon.

Diversified currently owns 15 rigs – one service rig and 14 dedicated to plugging. The company employs 12 crews to operate its P&A rigs. By March 2023, Diversified anticipates being fully staffed so that the company can run all 14 rigs.