CN-2 well now on production
Arrow Exploration, the high-growth operator with a portfolio of assets across key Colombian hydrocarbon basins, has provided an update on the operational activity at the Carrizales Norte ('CN') field on the Tapir Block in the Llanos Basin of Colombia where Arrow holds a 50% beneficial interest.
CN-2 Well
The CN-2 well was spud on June 15, 2023, and reached target depth on June 23, 2023. The well was drilled to a total measured depth of 9,474 feet (8,582 feet true vertical depth) and encountered multiple hydrocarbon-bearing intervals.
Arrow has completed testing the CN-2 well in the Ubaque formation which has approx. 60 feet of net oil pay. The pay zone is a clean sandstone exhibiting consistent 26% porosity, four Darcy permeability and high resistivities from top of sand to base of sand. An electric submersible pump (ESP) was inserted in the well after perforating.
The logs responses from the Ubaque formation are very similar in both CN-1 and CN-2 wells. Due to this, the Company made the decision to proceed directly to the perforation and well production of the Ubaque in CN-2. Company drilling targets and recompletion opportunities in the future.
Specific data for the initial production from the Ubaque formation are as follows:
- The well initiated production with a flow rate of 1,012 barrels of fluid per day.
- After 31 hours of production, the water cut stabilized at 3%.
- Measured oil from the Ubaque formation shows an API gravity of 13.6°.
To efficiently manage the reservoir, the ESP is currently running at 30 Hz, minimum optimum pump frequency, and a 128/128 choke size is being used. The CN-2 well is currently on production, producing from the Ubaque formation at 680 BOPD gross (340 BOPD net). Build-up analysis indicates the well can produce at 1,400 BOPD gross at a consistent producible rate. However, Management's intention is to produce the well conservatively, at current rates, to ensure the highest estimated ultimate recovery (EUR). This provides significant operational flexibility.
The CN-2 well also tested the C7 formation where early water production resulted in the Company making the decision to move immediately to the Ubaque formation where more economic results were encountered.
Initial production results are not necessarily indicative of long-term performance or ultimate recovery.
Forward Work Program
The CN-3 well was spud on July 20, 2023, and is continuing to be drilled as per schedule. After the CN-3 well, Arrow plans to move the rig to the RCE field to further exploit the multi-zone RCE structure with two dedicated Gacheta wells and the follow up to the RCE-6 C7 producer. The drilling rig will then return to the CN field to drill additional Ubaque wells that include second and tertiary formations in the borehole.
The 134 km2 3-D seismic survey at the West Tapir project has been successfully shot and processed. Interpretation is ongoing on this high-resolution data set. Multiple prospects have initially been identified with further interpretation to be finalized over the next 60 days.
Marshall Abbott, CEO of Arrow commented:
'Production from the CN-2 well provides additional evidence that the CN field is a material discovery for Arrow. Further to the thick pay zones encountered in the Ubaque formation, additional pay zones currently behind pipe provide further opportunities for production and reserve increases.
'The Company is looking forward to the CN-3 well results which will help determine the size of the pools in the field and the potential reserves additions. Multiple development locations are anticipated based on current results. Arrow plans to undertake a third-party reserve evaluation of the CN field once the current three well drilling program is complete.
'As with the RCE field, the Company plans to limit production at the CN field by controlling pump speed and choking wells back to efficiently manage the reservoir and discourage premature water production. Arrow believes this is in the best long-term interest of the reservoir and will result in maximum recovery for both fields.
'There is strong momentum at Arrow, as we continue with our fully funded, low risk drilling program across our extensive portfolio with the spudding of two wells at the RCE structure targeting the Gacheta formation to follow drilling at CN-3. Alongside this we are encouraged by the initial interpretation of the Tapir 3D seismic and look forward to providing further updates in due course.'
Source: Arrow Exploration
