eia-钻井能力评估报告（英文）-2018.6-11页

U.S. Energy Information Administration - Drilling Productivity Report (June 2018)

Core Content

The Drilling Productivity Report (DPR) by the U.S. Energy Information Administration (EIA) provides an analysis of oil and natural gas production trends across seven key regions in the United States. The report uses data from May 2018 and projects production through July 2018. It focuses on two main components: new-well production per rig and legacy production changes. The DPR does not differentiate between oil-directed and gas-directed rigs because wells can produce both resources once completed.

Key Regions and Their Data

Anadarko Region

• New-well oil production per rig: Increased by +10 thousand barrels/day month-over-month.
• New-well gas production per rig: Increased by +23 thousand cubic feet/day month-over-month.
• Legacy oil production change: +10 thousand barrels/day.
• Legacy gas production change: +23 million cubic feet/day.
• Total oil production: +10 thousand barrels/day.
• Total gas production: +23 million cubic feet/day.

Appalachia Region

• New-well oil production per rig: Increased by +4 thousand barrels/day.
• New-well gas production per rig: Increased by +23 thousand cubic feet/day.
• Legacy oil production change: +4 thousand barrels/day.
• Legacy gas production change: +23 million cubic feet/day.
• Total oil production: +4 thousand barrels/day.
• Total gas production: +23 million cubic feet/day.

Bakken Region

• New-well oil production per rig: Increased by +33 thousand barrels/day.
• New-well gas production per rig: Increased by +26 million cubic feet/day.
• Legacy oil production change: +33 thousand barrels/day.
• Legacy gas production change: +26 million cubic feet/day.
• Total oil production: +33 thousand barrels/day.
• Total gas production: +26 million cubic feet/day.

Eagle Ford Region

• New-well oil production per rig: Increased by +33 thousand barrels/day.
• New-well gas production per rig: Increased by +26 million cubic feet/day.
• Legacy oil production change: +33 thousand barrels/day.
• Legacy gas production change: +26 million cubic feet/day.
• Total oil production: +33 thousand barrels/day.
• Total gas production: +26 million cubic feet/day.

Haynesville Region

• New-well oil production per rig: Increased by +5 thousand barrels/day.
• New-well gas production per rig: Increased by +37 thousand cubic feet/day.
• Legacy oil production change: +5 thousand barrels/day.
• Legacy gas production change: +37 million cubic feet/day.
• Total oil production: +5 thousand barrels/day.
• Total gas production: +37 million cubic feet/day.

Niobrara Region

• New-well oil production per rig: Increased by +3 thousand barrels/day.
• New-well gas production per rig: Increased by +52 million cubic feet/day.
• Legacy oil production change: +3 thousand barrels/day.
• Legacy gas production change: +52 million cubic feet/day.
• Total oil production: +3 thousand barrels/day.
• Total gas production: +52 million cubic feet/day.

Permian Region

• New-well oil production per rig: Increased by +33 thousand barrels/day.
• New-well gas production per rig: Increased by +26 million cubic feet/day.
• Legacy oil production change: +33 thousand barrels/day.
• Legacy gas production change: +26 million cubic feet/day.
• Total oil production: +33 thousand barrels/day.
• Total gas production: +26 million cubic feet/day.

Methodology and Notes

• Monthly additions from one average rig represent EIA's estimate of an average rig's contribution to new well production, calculated using historical data divided by the monthly rig count, lagged by two months.
• Rig count data are sourced from Baker Hughes, with the monthly average calculated from weekly data.
• New-well production is defined as wells that began producing in the previous month, and each well is counted only once.
• Legacy production refers to changes in output from existing wells, primarily influenced by depletion rates but also affected by external factors such as freeze-offs, hurricanes, or environmental/economic issues.
• Projected production combines new-well and legacy changes to estimate the net monthly change in production.
• Data sources include state-level oil and gas agencies, such as the Railroad Commission of Texas, North Dakota Oil and Gas Division, and others, as well as Drilling Info for real-time rig location and well data.

Summary of Trends

• Oil production in most regions showed a positive month-over-month change, with the Bakken, Eagle Ford, and Haynesville regions leading the increase.
• Natural gas production also increased across all regions, with the Haynesville and Niobrara regions showing the highest growth.
• The report highlights that new-well production is a key driver of growth, while legacy production changes are influenced by depletion and external disruptions.
• EIA emphasizes that its estimates do not account for external factors like infrastructure constraints or weather events, which can impact actual production rates.

Conclusion

The Drilling Productivity Report offers a detailed analysis of the drilling activity and production trends in key U.S. tight oil and shale gas regions. It underscores the importance of rig count and new-well productivity in estimating future production and highlights the variability in legacy production due to depletion and other external factors. The report serves as a valuable tool for understanding the dynamics of oil and gas production in the U.S. energy sector.