A reader asked about new terms being used in the shale oil and gas industry. Here's a nice graphic from a recent SandRidge presentation:
Note: the stacked lateral is different than what they are doing in North Dakota. In the Bakken, for the most part, each horizontal lateral is separately drilled from the surface; in the graphic above, note that the two horizontals are coming off the same vertical well.
In the North Dakota Bakken we are not seeing much (any?) of either. In Montana, Oasis (or was it Slawson?) has drilled dual laterals, and CLR has recently drilled a well with six laterals.
A month ago I had pondered why they could not take the OLD existing Madison wells and do something like this. At least use the 7K feet Madison lateral and continue down to the Bakken and 3 forks then curve out horizontally.
ReplyDeleteI haven't seen much but I track re-entry wells here:
Deletehttp://themilliondollarway.blogspot.com/2012/12/wells-approved-for-re-entry.html
Hess did a few years back 156-94-25
ReplyDeleteuffda 111
#18952, EN-Henle; Three Forks, stacked, two laterals
Delete#18951, EN-Henle; Middle Bakken / Three Forks, stacked two laterals (one in each formation)
#18950, EN-Henle; Middle Bakken, stacked, two laterals
All three are still active; all drilled late 2010/early 2011; about 150,000 bbls cumulative for each (range 127K to 167K)