非常规/复杂油藏

随着 Jafurah 页岩和主天然气系统扩建进入下一阶段,阿美公司授予价值 250 亿美元的合同

沙特阿美公司将投资重点转向天然气,旨在到 2030 年将沙特阿拉伯推向全球顶级天然气生产国和液化天然气生产国之列。

谢巴赫-Field02.jpg
沙特阿美公司的谢巴天然气液 (NGL) 工厂加工来自沙特阿拉伯鲁卜哈利沙漠(又称“空区”)北部边缘的谢巴油田的 NGL。
资料来源:阿美

沙特阿美公司已授予价值 250 亿美元的新合同,旨在生产上游非常规天然气,并建设中游设施(加工厂、管道网络和相关设施),以便到 2020 年将沙特阿拉伯的天然气产量提高到 2021 年水平的 60% 以上。

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图 1——沙特阿拉伯 Ghawar 油田东部的 Jafurah 盆地,该油田是世界最大的常规油田。
来源:WPC-22-1223

与贾夫拉页岩气项目第二阶段相关的奖项包括 16 份合同,价值 124 亿美元,涵盖天然气压缩设施和管道建设,以及贾夫拉天然气厂的扩建,其中包括建设天然气处理生产线、公用设施、硫磺和出口设施。

沙特阿美公司在一份新闻稿中表示,工程范围包括在朱拜勒建设新的 Riyas 天然气液体 (NGL) 分馏设施,包括 NGL 分馏生产线以及公用设施、储存和出口设施,以处理从贾富拉收到的 NGL。

6 月 30 日还宣布了另外 23 份价值 24 亿美元的天然气钻井合同,以及两份价值 6.12 亿美元的定向钻井合同。据沙特阿美称,此前,在 2022 年 12 月至 2024 年 5 月期间,共授予了 13 份 Jafurah 井架连接合同,总价值 16.3 亿美元。

贾富拉是中东最大的页岩气田,已探明储量为 229 万亿立方英尺,商业网站《日经亚洲》估计该储量“相当于日本约 70 年的液化天然气进口量”。

沙特阿美公司预计将在贾富拉页岩气项目的整个生命周期内投资超过 1000 亿美元,该项目注定会成为美国以外最大的页岩气项目,预计 2025 年将产出第一批天然气,到 2030 年可持续销售天然气率将达到 20 亿立方英尺/天。

沙特阿拉伯寻求天然气供应主导地位

关于主天然气系统 (MGS) 扩建项目第三阶段,该项目旨在向沙特全国客户输送天然气,沙特阿美公司宣布了 15 份总价交钥匙合同,价值约 88 亿美元,用于资助 821 公里管道的建设和现有天然气压缩系统的升级。

今年 4 月,沃利委托贝克休斯代表阿美公司为第三阶段供应 17 台由航改型燃气轮机驱动的管道离心式压缩机,此前该公司已为 MGS 第一阶段和第二阶段交付了 18 台相同的压缩机。

沙特阿美公司还于 4 月份将工程、采购和施工 (EPC) 合同授予三星工程与电力公司,以扩大 Fadhili 天然气厂的加工能力。该合同总额为 77 亿美元,其中 60 亿美元用于将 Fadhili 的加工能力提高 15 亿立方英尺/天。

目标是到 2028 年,通过铺设 4000 公里的管道和 17 组新的天然气压缩机组,将沙特阿拉伯的天然气总产能提高 31.5 亿立方英尺/天,从而扩大沙特阿拉伯天然气分配网络的规模。

沙特阿美总裁兼首席执行官阿敏·纳赛尔 (Amin H. Nasser) 在新闻稿中表示:“我们在 Jafurah 的持续投资规模以及主天然气系统的扩建凸显了我们进一步整合和发展天然气业务以满足预期不断增长的需求的意图。”

他表示,这一战略“补充了我们投资组合的多样化,创造了新的就业机会,并支持沙特王国向低排放电网的转型,其中天然气和可再生能源逐步取代液体发电。”

Fadhili-Gas-Plant.jpg
图 2“ramco”的 Fadhili 天然气处理厂,是该国正在扩建的主天然气系统的一部分。
资料来源:阿美

 沙特阿美公司的 MGS 是一个庞大的管道网络,连接着沙特阿拉伯的主要天然气生产和加工基地,自 1982 年以来一直向国内市场输送伴生气。其扩建旨在用天然气替代石油用于国内发电。

今年 1 月,沙特石油部下令阿美公司停止其石油扩张计划,并将最大持续产能目标设定为 1200 万桶/日,比其在 2020 年宣布的 2027 年目标低 100 万桶/日。

据中东独立通讯社Al-Monitor援引阿卜杜勒阿齐兹·本·萨勒曼·阿勒沙特亲王今年 2 月在宰赫兰举行的国际石油技术会议上解释了该部这么做的理由:“我认为我们推迟这项投资的原因很简单,‘我们正在转型,转型意味着我们的石油公司变成了一家碳氢化合物公司,现在又变成了一家能源公司。’”

《日经亚洲》指出,通过停止扩大原油生产能力的计划,沙特阿美公司在2024年至2028年期间释放了400亿美元的投资,用于天然气和其他项目。

沙特阿拉伯评估可能的液化天然气和蓝氢计划

2023 年 6 月,总部位于华盛顿特区的中东研究所报道称,沙特阿美公司正在与道达尔能源公司和中石化讨论一个可能的液化天然气出口项目,该项目将从贾富拉气田获取天然气。

沙特阿美于 2019 年进军全球液化天然气业务,当时它收购了德克萨斯州亚瑟港液化天然气出口终端一期 25% 的股份,并与 Sempra 签署了一份为期 20 年的销售和购买协议 (SPA),以承购每年 500 万吨的产量。

今年 6 月,沙特又与德克萨斯州的液化天然气出口商签署了另外两份为期 20 年的 SPA,一份是与 Sempra 签署的 500 万吨/年的亚瑟港二期扩建项目出口协议,另一份是与 NextDecade 签署的 120 万吨/年的协议,该协议涉及布朗斯维尔 Rio Grande LNG 项目 4 号生产线。

SPA 是根据双方之间不具约束力的协议框架 (HoA) 合同达成的。根据与 Sempra 签署的 HoA,沙特阿美公司还在就沙特可能持有亚瑟港二期扩建项目 25% 的股份进行谈判。

在美国业务的基础上,沙特阿美还进军澳大利亚市场。2023 年 9 月,沙特阿美以 5 亿美元收购了 MidOcean Energy 的少数股权,6 个月后(2024 年 3 月),沙特阿美完成了对东京燃气在澳大利亚综合液化天然气项目组合中的权益的收购。

此外,沙特阿美还在考虑实施绿地蓝氢战略,7月16日该公司宣布已收购位于朱拜勒的蓝氢工业气体公司50%的股份,该公司是Air Products Qudra的全资子公司。

沙特阿拉伯页岩气生产的来龙去脉

让我们回顾页岩气和沙特阿美公司的上游探索,即将贾夫拉盆地转变为天然气生产母矿,其产量与相邻的加瓦尔油田(世界最大油田)的液体产量相当。

沙特阿美公司于 2023 年 11 月宣布其南加瓦尔致密岩气田将产出第一批天然气,同时报告其 2018 年投产的北阿拉伯致密岩气田的持续产量为 2.4 亿立方英尺/天。

目前,Jafurah 的工作仍处于预商业化阶段,因为阿美公司正在测试其首个高强度裂缝设计以及限流技术,该技术已提高北美页岩井的产量。

沙特阿拉伯对这些技术的应用在SPE 215668中进行了讨论,阿美公司的工程师在马斯喀特举行的 2023 年 SPE 国际水力压裂技术会议和展览会上介绍了这一文件。

BP的《2024年能源展望》指出,预计液化天然气需求将推动美国和中东天然气产量的增长,而世界其他地区的天然气产量将下降。

2024 年展望的“当前轨迹”情景中,全球天然气产量增长的 80% 将发生在这两个地区,“其中四分之三的产量增长用于液化天然气出口。”

即使在《展望》的净零情景下,假设到 2050 年实现净零目标,美国和中东的天然气产量仍将继续上升,因为这两个地区“液化天然气出口的增长(将抵消)国内消费的下降”。

与此同时,BP在其2024年展望中指出,尽管俄罗斯拥有全球最大的天然气储量和第二大天然气生产国,但受乌克兰战争的影响以及国际制裁对俄罗斯液化天然气出口扩张的影响,预计其产量将陷入停滞

进一步阅读

SPE 215668高强度压裂技术在沙特阿拉伯 Jafurah 非常规油田的应用,作者:沙特阿美公司的 Jose Valbuena、Jose Rueda、Muhammad Qasim、Ghaliah Khoa、Maram Zakary 和 Sofiane Fekkai。

WPC-22-1223沙特阿拉伯在贾富拉盆地的非常规计划:通过侏罗纪图瓦克山地层将想法变为现实,作者:沙特阿美公司的 Ahmed Almubarak、Ahmed Hakami、Ivan Leyva 和 Clay Kurison。

原文链接/JPT
Unconventional/complex reservoirs

Aramco Awards $25 Billion in Contracts as Jafurah Shale and Master Gas System Expansion Enters Next Phase

Aramco’s investment pivot to gas aims to propel Saudi Arabia into the top tier of gas producers and LNG players globally by 2030.

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Aramco’s Shaybah natural gas liquids (NGL) plant which processes NGL from Shaybah field at the northern edge of the Ar Rub’ al Khali (known as the “Empty Quarter”) desert in Saudi Arabia.
Source: Aramco

Aramco has awarded $25 billion in new contracts aimed at upstream unconventional gas production and a buildout of midstream facilities—processing plants, pipeline networks, and related installations to boost Saudi Arabia’s gas production by 60% over 2021 levels by the turn of the decade.

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Fig. 1—The Jafurah basin east of Saudi Arabia’s Ghawar field, the largest conventional oil field in the world.
Source: WPC-22-1223

Awards related to Phase 2 of the Jafurah shale gas project include 16 contracts worth $12.4 billion covering construction of gas compression facilities and pipelines, plus expansion of the Jafurah Gas Plant including construction of gas processing trains, utilities, sulfur, and export facilities.

Among the scope of works is construction of the new Riyas natural gas liquids (NGL) fractionation facilities in Jubail—including NGL fractionation trains, and utilities, storage, and export facilities—to process NGL received from Jafurah, Aramco said in a press release.

An additional 23 gas rig contracts worth $2.4 billion were also announced on 30 June, plus two directional drilling contracts valued at $612 million. Earlier, 13 well tie-in contracts at Jafurah worth a total of $1.63 billion were awarded over the period from December 2022 to May 2024, according to Aramco.

Jafurah is the largest shale gas field in the Middle East with confirmed reserves of 229 Tcf, a volume that business website NikkeiAsia estimates is “equivalent to about 70 years of Japan's LNG gas imports.”

Aramco expects to invest more than $100 billion over the life cycle of Jafurah which is destined to become the largest shale gas project outside of the US with first gas expected by 2025 and a sustainable sales gas rate of 2 Bcf/D by 2030.

Saudi Arabia Seeks Dominance in Supplying Gas

As regards Phase 3 of the Master Gas System (MGS) expansion to deliver natural gas to customers across the Kingdom, Aramco announced 15 lump-sum turnkey contracts worth about $8.8 billion to finance construction of 821 km of pipeline and the upgrading of existing gas compression systems.

In April, Worley tapped Baker Hughes on Aramco’s behalf to supply 17 pipeline centrifugal compressors driven by aeroderivative gas turbines for Phase 3 after having already delivered 18 of the same compressors for Phase 1 and 2 of the MGS.

Aramco awarded Samsung E&A the engineering, procurement, and construction (EPC) contract also in April to expand the processing capacity of the Fadhili Gas Plant—a $6-billion award out of $7.7 billion in total contracts to expand Fadhili’s processing capacity by 1.5 Bcf/D.

The goal is to increase the size of Saudi Arabia’s gas distribution network by raising the Kingdom’s total capacity by an additional 3.15 Bcf/D by 2028 by installing 4000 km of pipelines and 17 new gas compression trains.

“The scale of our ongoing investment at Jafurah and the expansion of our Master Gas System underscores our intention to further integrate and grow our gas business to meet anticipated rising demand,” Amin H. Nasser, Aramco president and CEO, said in a news release.

This strategy, he said, “complements the diversification of our portfolio, creates new employment opportunities, and supports the Kingdom’s transition towards a lower-emission power grid, in which gas and renewables gradually displace liquids-based power generation.”

Fadhili-Gas-Plant.jpg
Fig. 2—Aramco’s Fadhili Gas Processing Plant, a part of the Kingdom’s Master Gas System which is undergoing expansion.
Source: Aramco

 Aramco’s MGS is an extensive network of pipelines connecting Saudi Arabia’s key gas production and processing sites that since 1982 have delivered associated gas to the domestic market. Its expansion aims to replace oil with gas for domestic power generation.

In January, the Saudi oil ministry ordered Aramco to halt its oil expansion plan and to target a maximum sustained production capacity of 12 million B/D, which is 1 million B/D below the 2027 target it had announced in 2020.

Prince Abdulaziz bin Salman Al Saud explained the ministry’s rational in February at the International Petroleum Technology Conference in Dhahran as quoted by independent Middle East news agency Al-Monitor: "I think we postponed this investment simply because … we're transitioning, and transitioning means that our oil company became a hydrocarbons company and now an energy company.”

NikkeiAsia noted that by halting plans to expand its crude oil production capacity Aramco has freed up $40 billion in investment between 2024 and 2028 to allocate to natural gas and other projects.

Saudi Arabia Assessing Possible LNG and Blue Hydrogen Initiatives

In June 2023, the Washington, DC-based Middle East Institute reported that Aramco was discussing a possible LNG export project with TotalEnergies and Sinopec that would source its gas from the Jafurah gas field.

Aramco entered the global LNG business in 2019 when it bought a 25% stake in Phase 1 of the Port Arthur LNG export terminal in Texas and signed a 20-year sales and purchase agreement (SPA) with Sempra to offtake 5 mtpa of production.

This past June, the Saudi major agreed two more 20-year SPAs with LNG exporters in Texas—one with Sempra for 5.0 mtpa from the Port Arthur Phase 2 expansion and another with NextDecade for 1.2 mtpa from Rio Grande LNG’s Train 4 in Brownsville.

The SPAs were agreed under nonbinding Heads of Agreement (HoA) contracts between the parties. Under the HoA signed with Sempra, Aramco is also negotiating a possible 25% Saudi stake in Port Arthur’s Phase 2 expansion.

Building on its US involvement, Aramco is also reaching out to Australia after having acquired in September 2023 a $500-million minority stake in MidOcean Energy which 6 months later (in March 2024) completed its purchase of Tokyo Gas’ interests in a portfolio of Australian integrated LNG projects.

In addition, Aramco is also considering a greenfield blue hydrogen strategy as evidenced by a16 July announcement that it had acquired a 50% share in the Jubail-based Blue Hydrogen Industrial Gases Company, a wholly-owned subsidiary of Air Products Qudra.

The Ins and Outs of Producing Shale Gas in Saudi Arabia

But back to shale gas and Aramco’s upstream quest to turn the Jafurah basin into a mother lode of gas production on a level that the adjacent Ghawar oil field—the world’s largest oil field—has been for liquids.

Aramco announced first gas at its South Ghawar tight-rock gas field in November 2023 while also reporting ongoing production of 240 MMscf/D at its tight-gas North Arabia field which went onstream in 2018.

Work at Jafurah is currently considered precommercial, though, as Aramco tests its first high-intensity fracture designs along with the limited-entry technique that has led to improved well performance in North American shale wells.

Saudi Arabia’s application of these technologies is discussed in SPE 215668 which Aramco engineers presented at the 2023 SPE International Hydraulic Fracturing Technology Conference and Exhibition in Muscat.

BP’s Energy Outlook 2024 notes that demand for LNG is expected to drive growth in gas production in the US and the Middle East while gas production declines elsewhere in the world.

In the 2024 Outlook’s “current trajectory” scenario, 80% of global growth in natural gas production will occur in these two regions “with three-quarters of this production growth used for LNG exports.”

Even under the Outlook’s net-zero scenario, which assumes net-zero targets are met by 2050, US and Middle East gas production continues to rise because “growth in LNG exports (will offset) declines in domestic consumption” in both regions.

Meanwhile, though Russia has the largest gas reserves globally and ranks second as a gas producer, its production is expected to stagnate because of the impact of the war in Ukraine and the effect that international sanctions are having on the expansion of Russia’s LNG exports, BP argues in its 2024 Outlook.

FOR FURTHER READING

SPE 215668 Application of High-Intensity Fracturing Technique in Jafurah Unconventional Field in Saudi Arabia, by Jose Valbuena, Jose Rueda, Muhammad Qasim, Ghaliah Khoa, Maram Zakary, and Sofiane Fekkai, Saudi Aramco.

WPC-22-1223 Saudi Arabia’s Unconventional Program in the Jafurah Basin: Transforming an Idea to Reality With the Jurassic Tuwaiq Mountain Formation by Ahmed Almubarak, Ahmed Hakami, Ivan Leyva, and Clay Kurison, Saudi Aramco.