Offshore staff
LONDON– Drillstem tests on the latest exploration well on the Te Giac Trang field offshore southern Vietnam have exceeded expectations, according to partner SOCO International.
Combined peak production from two of the three zones tested in TGT-10XST1 in the H5 fault block is more than 16,500 b/d of oil. A third DST is now under way in the well, which encountered 250 m (820 ft) of gross pay in Miocene and Oligocene reservoir intervals.
The well location is 6 km (3.7 mi) south of the H4 wellhead platform in the southern part of the TGT field in block 16-1 in the Cuu Long basin.
Offshore Republic of Congo, SOCO’sLideka East Marine-1 (LDKEM-1) well, which has been targeting a postsalt structure updip from the Lideka Marine-1 well, encountered oil shows in the Sendji Formation (iS3).
LDKEM-1 was tested over a 20-m (65.6-ft) interval in the iS3 and S4 horizons. It flowed 30-35° API oil at a sustained rate of 350 b/d, with base, sediment, and water around 1%, matching predictions from the petrophysical analysis. Produced gas volumes were low.
SOCO adds that detailed rock physics and inversion models will be needed to determine where the best porosity zones are situated. The oil/water contact was not well defined in the exploration well, and an “oil down to” shale barrier could offer upside.
9/25/2013
