EIA: Horizontal Drilling Boosts Gas Production in Pennsylvania, USA

EIA: Horizontal Drilling Boosts Gas Production in Pennsylvania, USA

The U.S. Energy Information Administration (EIA) said in a report that between 2009 and 2011, Pennsylvania’s natural gas production more than quadrupled due to expanded horizontal drilling combined with hydraulic fracturing.

This drilling activity, which is concentrated in shale formations that cover a broad swath of the state, mirrors trends seen in the Barnett shale formation in Texas.

Historically, natural gas exploration and development activity in Pennsylvania was relatively steady, with operators drilling a few thousand conventional (vertical) wells annually. Prior to 2009, these wells produced about 400 to 500 million cubic feet per day of natural gas. With the shift to and increase in horizontal wells, however, Pennsylvania’s natural gas production more than quadrupled since 2009, averaging nearly 3.5 billion cubic feet per day in 2011. Natural gas wells accounted for virtually all (99%) of the horizontal wells started over this period.

Drilling programs in Pennsylvania’s shale formations, like those in other, more established plays such as the Barnett and Eagle Ford in Texas, are migrating to more liquids-rich areas due to the price premium of crude oil and natural gas liquids. The effect of low natural gas prices is apparent in Pennsylvania’s 2012 well count for the first third of the year. From January through April, drilling began on 618 new natural gas wells; over 700 new natural gas wells were started over the same period in 2011. In contrast, 263 new oil and “combination” (oil and natural gas) wells were started in Pennsylvania from January through April 2012, well above the 164 new wells that began drilling during the corresponding period in 2011.

LNG World News Staff, May 24, 2012; Image: EIA

 

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