Abstract:
Fields that are significantly producing hydrocarbons in the Central Indus
Basin has Miano in the category too. Real goal of this exploration was to
describe the reservoir potential and to further exploit the reservoirs of Lower
Goru B Sands. These channel sands dependably put a challenge before
geoscientists to exploit the reservoirs that are channeled in such a territory for
the assessment of hydrocarbon potential. To determine this issue, this
exploration work uses the advanced seismic methods like seismic inversion and
seismic attribute analysis alongside the help of seismically interpreting and
petrophysical examination of Miano region, Pakistan. The available data helps
in defining the physical attributes of the reservoir with the help of certain types
of modelling techniques. The simulated behavior of fluids in reservoir modelling
provide a head start to the Exploration and Production companies to progress
their optimal production techniques. Not one but different geophysical
techniques are brought into use to attain accurately characterized reservoirs,
including the correlation of the results. At the level of Lower Goru B Sands
negative flower structure (strike slip component) is observed. At the level of
Lower Goru B Sands fault blocks that are tilted in NE-SW orientation with a
two-way dip closure exists. Horsts graben structures are also observed at the
level of Lower Goru B Sands. In compartmentalizing the reservoir, NW-SE
trending faults plays a fundamental role. Petrophysical investigation
demonstrated that at least one reservoir zone having sufficient thickness and
hydrocarbon saturation in each Miano well is possibly sufficiently stable to
deliver at commercial level. Comparison of different frequency ranges with9
Lower Goru B Sands response was made using spectral decomposition, the
response indicated inverse relation between frequency and sand beds thickness.
Using spectral decomposition clear zones of sand bodies having channeled
geometries are stipulated. Bright spots are marked with the help of instantaneous
amplitude attribute at Lower Goru B Sands hence making it a potential reservoir
zone of Miano area. Different seismic inversion methods based on acoustic
impedance variation over the investigation region and porosity calculation
unmistakably upgraded the sweet spots eastbound way at Lower Goru B Sands
level which is solid for encouraging improvement of this field.
