We have had quite a few conversations lately regarding Pearsall Shale wells in the Maverick Basin in particular. Who is drilling them? Where are they? How are they being completed? What are the production volumes and are there liquids?
I’ll use Drillinginfo to quickly answer a few of these questions. First, I’ll post an image I have used in the past from an old TXCO presentation. I refer back to this stratigraphic column pretty often. The Pearsall is below the Eagle Ford.
Who is drilling them and where?
EnCana and Anadarko have 2009-10 producing Pearsall Shale wells in the Drillinginfo database. Newfield has drilled some but production is not yet available. Here is a map of them, histogrammed by cumulative gas and bubbled by maximum monthly gas. They extend from near the North end of Dimmit, as far south as Webb.
What are the production volumes and are there liquids?
Production is predominately dry gas (possible NGLs, they are not reported to the RRC). These wells have already produced into the 1/2 Bcf range. Maximum monthly volumes are in the 4 MMcf/d range.
How are they being completed?
Here is a table with some of the Drillinginfo Fracture Program Detail. Of course, subscribers have access to type of proppant, type of fluid, volumes of acids and number of stages etc.
Although the Pearsall wells are productive, operators have to battle factors such as gas price, holding Eagle Ford leases, and depth clauses before they can develop this shale. However, Pearsall shale development is inevitable especially when considering the productive nature of these wells.
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