A few months ago I blogged about the Matthews 17H well, Petrohawk’s first restricted rate Haynesville well. After a few more months of production i figured I’d take another look at it. After all, Petrohawk said at the NY IPAA conference a few weeks back that they will be producing all of their Haynesville wells at restricted rates.
So here is a map of the Matthew 17 and it’s offsets. The Allbritton Cattle 8 is a good comparison offset since it first produced in June 2009 and the Matthews in July 2009. This map is labeled using the DI label feature. Labeled are the Date First produced, below that is the Prac IP (drillinginfo speak for 2nd month production, Mcf), and below that is the Cumulative Gas Produced (Mcf). Notice the Prac IP of the Matthews is about half that of the others.
Below is the decline curve for each of these wells. The Matthews 17 is pretty distinguishable, it’s the only curve with a flat early decline. It crosses paths with the offset Albritton Cattle 8 after the 6th month and is now producing more per month.
Here is the cumulative gas vs. time chart for these wells. After 7 months of production the Matthews 17 has produced 71% of the Albritton Cattle 8, with 1.57 and 2.21 Bcf produced respectively. Operators are saying that the cums will cross paths after approximately one year.
I am hearing most of the big operators subscribing to this practice and i have written about this quite a few times. It is going to be interesting when some more time passes and the data for these restricted rate wells becomes available. We are currently identifying potential restricted rate wells and will be keeping a close eye on this. In fact, restricted rate well analysis will be included in our Unconventional Platform for all shale plays where relevant.
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