ADX Energy announced on 26 August 2019 that the drilling of the Iecea Mica 1 appraisal well in the DEE V-19 Iecea Mare production license in western Romania reached the measured depth of 2,335 m on 25 August 2019. The company indicated that a number of potential Pliocene to uppermost Miocene (PA) reservoirs were intersected and logged. A two-meter âPA IIIâ stratigraphic interval, within which two significant gas peaks were recorded, was intersected at the depth of 1,863 m, i.e. three meters shallower that the control well (Iecae Mare 35). Very strong C1 and some C2 gas shows were recorded within the âPA IVâ section over a five-meter interval at the depth of 2,033 m as well as two more strong peaks associated with a claystone section at the respective depths of 2,053 and 2,051 m. Finally, the âPA Vâ interval was encountered at 2,140 m (MD), where strong C2 and C3 gas peaks were recorded over a 23-m section composed of an alternation of claystone, siltstone and finely laminated sandstone less than two meters thick.  ADX will now run the 7â casing and start the drilling of the 6â hole to total depth. The well is expected to intersect potential Badenian and Sarmatian as well as fractured basement reservoirs belonging to deeper hydrocarbon systems below the depth of 2,400 m, after crossing the crest of a significant basement high. The area is lacking a number of Lower Pannonian reservoirs due to onlap and non-deposition.  The well was spudded on 6 July 2019. Drilling operations using the âTacrom Futura Rig 6â drilling rig should last 29 days from spud. Iecea Mica 1 is a re-drill of the Iecea Sud 35 well which was drilled to a TD of 2,350 m by Petrom between 1986 and 1988. The upper 2,350 m of the well will be a re-drill of the original discovery well and will evaluate multiple gas zones mapped on 3D seismic data including a gas zone which was flow tested. The well will then be deepened by a further 250 m to evaluate a larger exploration target, which has been proven to contain oil in other fields within the basin. The costs are estimated at USD 3 million, including evaluation, logging and running casing but does not include the well testing operations which are planned to be undertaken with a smaller and cheaper workover unit. The company is also planning the re-drill of Carpinis 55 which will be named Iecea Mica 2 in the E X-10 Parta licence. If successful, the wells will be tied-in to the nearby Galacea gas plant in late 2019. Wellsite operations were launched in June and the rig mobilization took place between 29 July and 5 August. On 18 August 2019 the well reached the depth of 1,346 m. The 9 5/8â casing was successfully cemented to the depth of 808 m and the well head and blow out preventer installed.  The contingent resources based on an independent expertâs report of the historic well data with recently acquired 3D seismic is 6.1 Bcf 2C and prospective gas resources are 13 Bcf best estimate potential. The best-case prospective resource for the deeper exploration upside potential accessible by the well that is mapped on 3D seismic is 16 Bcf (for a gas success case) and 2 MMbbl (for an oil success case).    In October 2017 the company confirmed that it had spotted two potential drilling opportunities following the data interpretation of a modern 3D survey which covers some 20 sq km in the northern part of the licence. According to ADX with the exception of one reservoir target all other targets have been proven either by long term testing or free gas flow to surface. The Carpinis 55 and Iecea Sud 35 wells have been drilled in the 1980s. The Iecea Mare oil and gas field was discovered in 1985 and put onstream in 1986. In 1998 the field considered as depleted was shut down.     Interest in the DEEV-19 Iecea Mare licence is held solely by ADX Panonia Srl. ADX Energy Panonia is 100% held by Danube Petroleum which belongs to ADX Energy (62.5%) and Reabold Resources (37.5%).
Iecea Mare 1 (ADX Energy 62.5%, Reabold Resources 37.5% ) in Iecea Mare production licence intersected a number of sst. reservoir intervals, noting two âsignificantâ gas peaks encountered in the Pa III stratigraphic interval, a number of potential Pliocene to uppermost Miocene (PA) reservoirs were intersected and logged. A two-meter âPA IIIâ stratigraphic interval, within which two significant gas peaks were recorded, was intersected at the depth of 1,863 m, i.e. three meters shallower that the control well (Iecae Mare 35). Very strong C1 and some C2 gas shows were recorded within the âPA IVâ section over a five-meter interval at the depth of 2,033 m as well as two more strong peaks associated with a claystone section at the respective depths of 2,053 and 2,051 m. Finally, the âPA Vâ interval was encountered at 2,140 m (MD), where strong C2 and C3 gas peaks were recorded over a 23-m section composed of an alternation of claystone, siltstone and finely laminated sandstone less than two meters thick.