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Southwestern’s Longer Laterals vs. Well Performance


In recent years there has been a lot of talk in the industry about the relationship between lateral length and horizontal well performance.  In Seeco’s (Southwestern Energy) latest investor presentation, they provided a table that when put into a nice, neat graph can shed a little light on this correlation as it relates to their wells in the Fayetteville.  By no means does this table represent a universal truth but it is still interesting to look at.

As we can see, for the most part, the longer the average lateral length the higher the average IP.  With the HPDI tool we can reinforce this theory by looking at how much production each quarter’s wells contributed to total quarterly daily production starting in Q1 2007. Obviously, Southwestern has increased the number of wells drilled each year but if you look at the 1st quarter jump in 2009 after drilling only 74 wells in 4th quarter 2008 you can see that these longer laterals are definitely having a noticeable difference on their production curves. It will be interesting to see how this chart shapes up as more production becomes available for the second half of 2009.  (click on the chart to enlarge)

To learn more visit Seeco’s DI Unconventional Update folder or log into HPDI Online and select “SEECO, INC.” as the operator, “FAYETTEVILLE” as the reservoir, and “H” for the drill type.

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Anne Leonard

In January 2015, Anne Leonard headed the team that launched the latest addition to DrillingInfo’s international publications, International Scout Frontier North America which covers the US Gulf of Mexico as well as Maritime and Arctic Canada. She has been reporting on exploration and production for more than 30 years. She began her career in Denver covering the Rocky Mountain Region, and has spent the last 10 years covering the international arena, with a particular focus on Latin America, Africa, Western Europe and the Far East. Anne received her Bachelor of Arts in Journalism from the University of Nebraska.