RE: Oil price31 May 2020 12:29
Georgia - Samgori Field
The Samgori field is located near Tbilisi, in the Republic of Georgia. Production of more than
165 M bbl of oil has come from a middle Eocene laumontite tuff which is enclosed within a
thick layer of andesite-basalt tuffs and tuffites which act as a seal (Grynberg et al, 1993).
Productivity is dominantly controlled by fracture porosity and permeability. The fractured tuffs
are relatively isolated from the action of geostatic and geotectonic loads which would
otherwise have resulted in closure of fractures and microfractures. In addition, the fluid
pressure tends to maintain open fractures.
Georgia – Ninotsminda Field
Located 25 km east of Tbilisi, the Ninotsminda Field represents the largest remaining oil
accumulation in Georgia. The field was discovered in 1979, and represents an anticlinal trap,
with production mainly from the fractured Middle Eocene volcaniclastics. The reservoir is
underpressured at 0.38 psi/ft, and is dominated by sub-vertical micro and macro fractures
that are most concentrated in the hinge area of the fold.
In 2000, a vertical well was drilled into the oil producing formation, with production tests
stabilising at a flow of 200 bo/d. After further work was carried out on the area, another
appraisal well was drilled in 2003, this time with a horizontal deviation in the oil-producing
strata. The oil flow using this method was 2200 bo/d.The area is being extensively developed by the NOC (Ninotsminda Oil Company), with a 5
well prospect likely to increase production from 2000 to 4500 bo/d (Durglishvili et al., 2004).
Hydrocarbons have also been discovered in the Middle Eocene volcanic prospect at Nono
PSA, Patardzeuli and South Dome fields.
After reading this , it looks like the horizontal drilling increased production massively! Exciting times ahead with this new asset me thinks! This field needs bringing back to life!
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