Sea lion 217m oil column29 Dec 2024 06:38
Through all the depressing years where RKH’s survival has been in doubt, I had completely forgotten about the Isobel discovery and oil column of 480 m. It seemed so irrelevant to dream about when we couldn’t event get a fully appraised oil discovery started, that I dismissed it. Isobel could indeed be an absolute monster. Well, that irrelevance areabout to change and I am now being reminded why this story has captivated myself and so many others for so long. For reference see the technical details of Sealion with a 217 m oil column :
Embargoed: 0700hrs 4 June 2010
Rockhopper Exploration plc
("Rockhopper" or the "Company")
Sea Lion Exploration Well - 14/10-2
Oil Discovery - Technical Update
Rockhopper Exploration, the North Falkland Basin oil and gas exploration company, is pleased to provide the following update regarding analysis of the results of the Sea Lion 14/10-2 well oil discovery recently completed in the North Falkland Basin:
Highlights:
Samples analysed in a dedicated laboratory confirmed as medium gravity crude oil - ranging from 26.4 to 29.2 API
Every sand in the well beneath regional seal charged with oil
RPS Energy Best Estimate recoverable upgraded from 170mmbbls to 242mmbbls recoverable with significant upside potential
Board believes new play fairway opened
217 metres gross oil column, 53 metres net pay
The Company intends to test the well at the earliest opportunity during the current campaign
Results of data analysis
Well 14/10-2 on the Sea Lion prospect ("Sea Lion" or "the Sea Lion well") was drilled to a depth of 2,744 metres during April and May 2010. Following completion of final logging, the well was suspended for future testing. The Company intends to test the well at the earliest opportunity during the current campaign and test equipment is currently being mobilised.
The well penetrated what the Company believes is a regional seal between 2,250 metres and 2,374 metres subsea. Based on log analysis, well site evaluation of shows and samples, sidewall cores and wireline formation testing, it appears that all sands encountered beneath this regional seal at the Sea Lion location are charged with oil and no oil water contacts were encountered.
The top oil sand in the Sea Lion well was encountered at 2,374 metres subsea, and the base of the lowest oil sand ("oil down to") level was encountered at 2,591 metres subsea. The total vertical oil column is 217 metres (712 feet), with total net pay of 53 metres in seven identified pay zones, the thickest of which is approximately 30 metres gross.
Pressure data suggest the possibility of two separate oil columns, although this will have to be confirmed by a full well test. The main Sea Lion fan has a net pay interval of 34.5 metres. Additional underlying sands have net pay totalling approximately 18 metres. Approximately 16m of this lower pay appears to relate to a Sea Lion lower fan, which had been previously recognised, but not incl