21 th International Petroleum and Natural Gas Congress and Exhibition of Turkey, Ankara, Türkiye, 27 - 29 Eylül 2023, cilt.1, sa.1, ss.145-147
Exploring unconventional reservoirs is known to be
technically and economically challenging from drilling
to reservoir evaluation and stimulation. In order to
develop unconventional reservoirs, oil companies have
to drill and stimulate high number of wells which makes
geomechanics studies crucial to provide necessary
insights for successful operations. Dadaş Silurian
shale, located in SE- Türkiye, are being explored as
unconventional reservoir by the TPAO for decades.
Numerous problems related to formations instability
and or pore pressure have been reported while drilling
these formations. Hydraulic fracturing completed in
some wells turned out to be also very challenging in
various intervals. Considering these different problems,
a geomechanics study is completed at different scales
in Dadaş field to help improving, in the short term,
hydraulic fracturing operations and provide solutions
for drilling optimization to limit drilling-related nonproductive
time and bad hole conditions.