Equinor ASA and its companions have found extra pure gasoline within the Gudrun area on Norway’s aspect of the North Sea.
The invention was made in wildcat wells 15/3-13 S and 15/3-13 A, the thirteenth and 14th exploration wells drilled underneath manufacturing license 025, the Norwegian Offshore Directorate mentioned in a press launch.
“Preliminary estimates place the dimensions of the invention between 0.1 and 1.2 million normal cubic meters (between 3.5 million and 42.5 million cubic ft) of recoverable oil equal within the intra-Draupne Formation, and between 0.4 and 1.3 million normal cubic meters (between 14.1 million and 46 million cubic ft) of recoverable oil equal within the Hugin Formation”, the Directorate reported.
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“The licensees will assess the properly ends in gentle of different prospectivity within the space”.
Gudrun is already a producing area, put onstream 2014. Final yr it produced 1.26 million cubic meters (44.5 million cubic ft) of oil, 980,000 cubic meters (34.6 million cubic ft) of gasoline and 110,000 cubic meters (3.9 million cubic ft) of pure gasoline liquids, in keeping with data on authorities web site Norskpetroleum.no.
At the moment the central North Sea area has remaining reserves of 10.6 million cubic meters (374.3 million cubic ft) of oil equal, principally oil, in keeping with Norskpetroleum.no.
Within the newest drilling marketing campaign, carried out by Odfjell Drilling Ltd.’s Deepsea Stavanger rig, the first goal was to show petroleum in Late Jurassic reservoir rocks within the intra-Draupne Formation and Center Jurassic reservoir rocks within the Hugin Formation.
“Properly 15/3-13 S encountered skinny oil-bearing sandstone layers within the intra-Draupne Formation”, the Directorate mentioned. “The oil/water contact was not encountered. Within the Hugin Formation, the properly encountered a complete of 92 meters [301.8 feet] of sandstone with poor reservoir properties.
“Fuel was encountered in two intervals, with respective thicknesses of 8 and seven meters [26.2 feet and 23 feet]. The gasoline/water contact was not encountered”.
The properly was drilled to measured and vertical depths of 4,826 meters [15,833.3 feet] and 4740 meters [15,551.2 feet], respectively, under sea degree.
Sidetrack 15/3-13 A, drilled to delineate the invention, encountered oil in an 85-meter (278.9 ft) thick interval within the intra-Draupne Formation, 13 meters [42.7 feet] of which had been intermittent sandstone layers with reasonable high quality. “The oil/water contact was confirmed 4328 meters [14,199.5 feet] under sea degree”, the Directorate mentioned.
“15/3-13 A additionally proved about 100 meters [328.1 feet] of sandstone with poor reservoir properties within the Hugin Formation. Your entire interval was aquiferous, and no gasoline/water contact was confirmed”.
Properly 15/3-13 A was drilled to measured and vertical depths of 4,900 meters [16,076.1 feet] and 4,814 meters [15,794 feet], respectively, under sea degree.
Each wells, which have a water depth of 110 meters [360.9 feet], had been terminated within the Sleipner Formation within the Center Jurassic.
Within the secondary drilling goal, the Rodby Formation within the Decrease Cretaceous, no reservoir was encountered.
“The wells weren’t formation-tested, however intensive information acquisition and sampling had been carried out”, the Directorate mentioned, including the wells have been completely plugged and deserted.
Norway’s majority state-owned Equinor is the operator within the license with a 36 % stake by means of Equinor Power AS. Var Energi ASA owns 25 %, OMV (Norge) AS 24 % and Repsol Norge AS 15 %.
To contact the writer, electronic mail jov.onsat@rigzone.com
