•2021年，油气行业81%的完井为水平或定向井。
•在2010年至2021年间，已完井的油气井数量减少了66%。
•在美国，水平井钻井一直是开发新石油和天然气资源的关键。
据今日油价网4月21日报道，美国能源信息管理署(EIA)周四表示，2021年，美国超过80%的油气井是水平或定向完井，尽管自2010年以来已完井的总数有所下降，但由于水平钻井，美国原油产量增加了一倍以上。
EIA在其近期新增的原油和天然气完井数据系列中发现，2010年以来，油气行业81%的完井为水平井或定向井，而直井的这一比例仅为19%。
在2010年至2021年间，已完井的油气井数量减少了66%。钻井总长度也减少了30%。然而，EIA表示，美国原油产量增加了一倍多，美国天然气总采收率增加了55%。
这是因为钻井平均进尺的技术进步——在2010年至2021年间，平均进尺从7300英尺/口增加到15200英尺/口，增加了一倍多。
EIA指出：“水平井和定向井比直井更长，使它们能够进入更多含原油和天然气的地质层，从而提高了这些井的产能。”
根据EIA基于贝克休斯数据的月度估计，自2020年8月美国运营钻机数量处于低位以来，钻机数量每月都在上升，到2022年2月达到636台。
最近一周的数据显示，截至4月15日的一周，总钻机数增加到693台，比2021年同期增加了254台，是自2020年4月以来的最高数量。近期钻探活动大幅增加，在过去七周内增加了43个钻井平台。而且，在地缘政治冲突前7周，也增加了62个钻井平台。
季廷伟 摘译自 今日油价网
原文如下：
EIA: U.S. Crude Production Doubled Since 2010 Because Of Horizontal Wells
•81 percent of completed wells in the oil and gas industry were horizontal or directional in 2021.
•The number of completed oil and gas wells fell by 66 percent between 2010 and 2021.
•Horizontal well drilling has been crucial in the development of new oil and gas resources in the U.S.
More than 80 percent of oil and gas well completions in the United States were horizontal or directional in 2021, and although the total number of completed wells has fallen since 2010, U.S. crude oil production has more than doubled thanks to horizontal drilling, the Energy Information Administration (EIA) said on Thursday.
Last year, 81 percent of completed wells in the oil and gas industry were horizontal or directional, compared to just 19 percent of completed vertical wells, the EIA found in its recently added data series on crude oil and natural gas well completions and drilled footage for U.S. wells completed since 2010.
The number of completed oil and gas wells fell by 66 percent between 2010 and 2021. Total drilling length also dropped, by 30 percent. However, U.S. crude oil production has more than doubled, and U.S. gross withdrawals of natural gas have increased by 55 percent, the EIA said.
That’s because of technology improvements in the average footage of wells drilled—this footage more than doubled from 7,300 feet per well to 15,200 feet per well between 2010 and 2021.
“Horizontal and directional wells are longer than vertical wells, allowing them to access more geologic formations that contain crude oil and natural gas, which increases those wells’ productivity,” the EIA noted.
Since the August 2020 low in the number of operating rigs in the United States, the rig count has risen every month to reach 636 operating rotary rigs in February 2022, according to EIA’s monthly estimates based on Baker Hughes data.
In the most recent week with available data, the total rig count increased to 693 in the week to April 15—that’s 254 rigs higher than the rig count this time in 2021 and the highest count since April 2020. Drilling has picked up substantially since the war, adding 43 rigs in the last seven weeks. The seven weeks preceding the war, however, saw 62 rigs added.
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