2024 年 10 月
特别关注:钻井技术的进步

美国单井钻井进尺持续攀升

(WO) — 我们都听到过大量证据表明,美国运营商继续努力提高每口井的钻井量,以最大限度地提高石油产量,而《世界石油》的研究表明,这两个目标都在实现。话虽如此,但一些主要州的表现各不相同。 
库尔特·亚伯拉罕/世界石油

 

在美国最大的上游州德克萨斯州,2020 年至 2024 年间,所有地区每口井的钻井进尺增加了 1.3%,因为运营商在该时期开始时就已经开始钻更长的水平井,如表 1 所示。作为多产的二叠纪盆地的所在地,该州的石油产量跃升 15.4%,从 2020 年的 484.9 万桶/天增至 2024 年上半年的 559.5 万桶/天,如表 2 所示。  

 

 

在德克萨斯州,各个油田之间存在差异。例如,在二叠纪盆地第 8 区,每口井的钻井进尺在四年内增长了 1.8%,从 2020 年的 16,800 英尺增加到 2024 年的估计 17,100 英尺。该地区的产量增长了 17.0%,从 2020 年的 283.1 万桶/天增加到 2024 年上半年的 331.3 万桶/天。然而,我们应该指出,第 8 区今年的产量比 2023 年的水平下降了约 104,000 桶/天,我们在几个州/地区都看到了这种现象。这可能表明美国产量正在达到峰值并趋于平稳。 

同样位于二叠纪盆地的德克萨斯州 7C 区,过去四年中每口井的钻井进尺增加了 6.9%,从 2020 年的 16,650 英尺增加到 2024 年的预计 17,800 英尺。该地区的石油产量也随之增长,增长了 19.7%,从 2020 年的 386,335 桶/天增加到 2024 年上半年的 462,553 桶/天。  

德克萨斯州鹰福特页岩区的情况则有所不同。在 1 区,今年每口井的钻井量似乎比 2020 年的水平下降了约 8%,约为 15,025 英尺/口。该地区的石油产量与 2020 年的数字持平,为 557,271 桶/天。在东南部,我们发现2 区的情况更好,平均每口井的钻井量估计上升到 16,350 英尺,比 2020 年的水平高出 2.8%。然而,自 2020 年以来,该地区的石油产量下降了 13% 以上,平均约为 447,370 桶/天。  

在邻近的新墨西哥州,单井钻井进尺和石油产量的增长令人印象深刻。单井钻井进尺增加了 24%,从 2020 年的 15,000 英尺增加到 2024 年上半年的 18,600 英尺。该州的石油产量显然对更长的井做出了反应。产量增长了惊人的 93%,从 2020 年的 102.7 万桶/天增加到 2024 年上半年的 198.1 万桶/天。  

墨西哥湾,单井钻井进尺增长了约 9%,从 2020 年的 17,200 英尺增加到 2024 年上半年的约 18,720 英尺。有趣的是,墨西哥湾的石油产量在此期间也相应增长,在 2024 年上半年增长了 7.5%,达到 179.2 万桶/天。北达科他州的情况则温和一些,过去四年中,该州单井钻井进尺增长了 3.5%,2024 年前六个月平均为 21,667 英尺。石油产量几乎没有变化,今年上半年的产量为 119.3 万桶/天。虽然俄克拉荷马州过去四年中单井钻井进尺增长了 5.4%,但该州的石油产量并未同步增长。相反,石油产量下降了 16.1%,从 2020 年的 472,000 桶/日下降到 2024 年上半年的约 396,000 桶/日。 

怀俄明州、犹他州俄亥俄州的单井钻井进尺也出现了明显增长,石油产量也相应出现了令人鼓舞的增长。  

为了公平地评估宾夕法尼亚州和路易斯安那州(北部地区),我们必须比较这两个州的钻井进度与天然气生产表现。在宾夕法尼亚州,在此期间,每口井的钻井进度保持相对平稳。这一数字已从 2020 年的约 15,960 英尺上升至 2024 年上半年的 16,100 英尺。因此,该州的天然气产量在同一时间段内小幅增长了 3.3%,见表 3。这些数字可能代表了该行业在试图建立额外的管道容量以将天然气运出该州用于出口或在美国境内运输时遇到的持续困难  

 

 

路易斯安那州,每口井的钻井量与四年前相比几乎没有变化。然而,该州的市场天然气产量增长了约 18%。部分增长可能是由于该州正在进行或计划中的许多液化天然气项目。另一个因素可能是该州矿产和能源委员会批准了 2024 年特许权使用费削减计划。 

关于作者
库尔特·亚伯拉罕
世界石油
库尔特·亚伯拉罕 kurt.abraham@worldoil.com
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October 2024
SPECIAL FOCUS: ADVANCES IN DRILLING

U.S. footage drilled per well continues to creep higher

(WO) -- We’ve all heard plenty of evidence that U.S. operators continue to strive to drill more footage per well to maximize oil production, and World Oil research indicates that both goals are being achieved. That being said, the performance varies among some key states. 
Kurt Abraham / World Oil

 

In the country’s largest upstream state, Texas, footage drilled per well over all the districts has risen 1.3% between 2020 and 2024, as operators were already drilling longer laterals at the beginning of the period, Table 1. As the home of the prolific Permian basin, the state has seen its oil production jump 15.4%, from 4.849 MMbpd in 2020 to 5.595 MMbpd during first-half 2024, Table 2.  

 

 

Within Texas, there are differences between the plays. For instance, in District 8 of the Permian basin, footage drilled per well has risen 1.8% over four years, from 16,800 ft in 2020 to an estimated 17,100 ft in 2024. And the district’s output has jumped 17.0%, from 2.831 MMbopd in 2020 to 3.313 MMbopd during first-half 2024. However, we should point out that District 8’s production this year is down about 104,000 bopd from its 2023 level, a phenomenon that we see in several states/areas. This may indicate that U.S. output is peaking and flattening out. 

In Texas District 7C, also in the Permian, footage drilled per well has increased 6.9% over the last four years, going from 16,650 ft in 2020 to an estimated 17,800 ft in 2024. The district’s oil production has prospered accordingly, growing 19.7%, from 386,335 bpd in 2020 to 462,553 bpd in first-half 2024.  

The story is different in the Eagle Ford shale portion of Texas. In District 1, footage drilled per well seems to be down about 8% from the 2020 level, at about 15,025 ft/well this year. And oil production in the district is level with the 2020 figure at 557,271 bpd. To the southeast, we find District 2 faring better, with average footage drilled per well rising to an estimated 16,350 ft, up 2.8% from 2020’s level. Yet, oil production in the district has fallen more than 13% since 2020, averaging about 447,370 bpd.  

Over in neighboring New Mexico, gains in footage drilled per well and oil production have been impressive. The footage drilled per well has jumped 24% higher, from 15,000 ft in 2020 to 18,600 ft in the first half of 2024. The state’s oil production certainly has responded to the longer wells. Output is up an impressive 93%, from 1.027 MMbopd in 2020 to 1.981 MMbopd in first-half 2024.  

In the Gulf of Mexico, footage drilled per well is up about 9%, rising from 17,200 ft in 2020 to about 18,720 ft in first-half 2024. Interestingly, GOM oil production is up proportionately during this period, gaining 7.5% to 1.792 MMbpd in first-half 2024. Milder results have occurred in North Dakota, where footage drilled per well is up 3.5% during the last four years, averaging 21,667 ft during the first six months of 2024. And oil output has barely budged, with a rate of 1.193 MMbpd during the first half of this year. While Oklahoma’s footage drilled per well is up 5.4% during the last four years, the state’s oil production has not reacted in tandem. Instead, oil output has fallen 16.1%, from 472,000 bpd in 2020 to about 396,000 bpd in the first half of 2024. 

Other noticeable gains in footage drilled per well have occurred in Wyoming, Utah and Ohio, with encouraging increases in oil production registered, accordingly.  

To assess Pennsylvania and Louisiana (the northern half) fairly, we have to look at drilling footage vs. the performance of natural gas production in those states. In Pennsylvania, footage drilled per well has remained relatively flat during the period. The figure has risen from about 15,960 ft in 2020 to 16,100 ft in first-half 2024. Accordingly, gas production in the state was up a marginal 3.3% in that same timeframe, Table 3. These figures may represent the ongoing difficulties that the industry has been having in trying to build additional pipeline capacity to transport gas out of the state for either export or routing within the U.S.  

 

 

Down in Louisiana, the footage drilled per well is virtually unchanged from four years ago. Yet, marketed gas production in the state is up about 18%. Some of this increase may be due to a number of LNG projects underway or planned in the state. An additional factor may turn out to be the state’s Mineral and Energy Board’s authorization of the 2024 Royalty Reduction Program. 

About the Authors
Kurt Abraham
World Oil
Kurt Abraham kurt.abraham@worldoil.com
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