Reporting on the Cardiff-3 deep gas well

TAG Oil set out to establish a strong foundation (both operationally and financially) on its Taranaki shallow oil and gas opportunities, and with 31 successful wells in just a few years, we’re pretty happy with how that’s gone. But those of you who have been with us for awhile, know that we’ve also had an eye on prospects with even greater potential, such as the East Coast Basin’s unconventional oil, and the Taranaki Basin’s deep Eocene-level oil and gas. 

Image 13In the current quarter, TAG successfully drilled, logged and cased its first deep Eocene well, Cardiff-3, which went to 4,863 meters depth, and intersected 45 meters (148 feet) of potential pay in the successful Kapuni Sands Formation. (We say “successful” because the Kapuni is a proven, strong producer elsewhere in the Taranaki, and its discovery by BP Shell Todd launched a new energy era for New Zealand a few decades ago.) And in the hopes of launching the next era in New Zealand energy, we’re prepping to test Cardiff-3 in the near future.

Our shallow drilling program is still intrinsic to TAG’s short and long-term success, but the goal with deep drilling is to capture reserves many times larger than what’s possible with shallow Miocene drilling. An independent assessment by Sproule International Limited (effective 7/31/13) estimated the undiscovered resource potential on the Cardiff prospect on a P50 basis at 160 billion cubic feet gas and 5.59 million barrels of natural gas liquids.*  Time will tell!

For past posts on the Cardiff deep gas well:

December 10, 2013, A quick update on Cardiff’s deep gas / condensate well

November 15, 2013, Cardiff-3 Deep Gas Drilling: One zone at a time, so far so good…

October 25, 2013, 30-Days’ Deep on Cardiff-3

September 19, 2013, Drilling Deep in the Taranaki Basin

** Footnote **

Sproule is a qualified reserves evaluator in accordance with NI 51-101 and the Canadian Oil and Gas Evaluations Handbook. Best Estimate is considered to be the best estimate of the in-place volumes that will actually be present. It is equally likely that the actual in-place volumes will be greater or less than the best estimate. If probabilistic methods are used, there should be at least a 50 percent probability (P50) that the in-place volumes will equal or exceed the best estimate.

Undiscovered Petroleum Initially-In-Place (equivalent to undiscovered resources) is that quantity of petroleum that is estimated, on a given date, to be contained in accumulations yet to be discovered. The recoverable portion of undiscovered petroleum initially in place is referred to as “prospective resources,” the remainder as “unrecoverable. 

Prospective resources are those quantities of petroleum estimated, as of a given date, to be potentially recoverable from undiscovered accumulations by application of future development projects.  Prospective resources have both an associated chance of discovery and a chance of development.  There is no certainty that any portion of the resources will be discovered.  If discovered, there is no certainty that it will be commercially viable to produce any portion of the resources.