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7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
Structure
Image in Tinat
Field
, Saudi Arabia
1 Exploration, Saudi Aramco, Dhahran, 31311, Saudi Arabia, phone: 873-4595,
[email protected]
2 Area Exploration, Saudi Aramco, Saudi Arabia
3 Saudi Aramco, Dhahran, Saudi Arabia
The 3D seismic
structure
image of the Paleozoic reservoir in Tinat Gas
Field
southeast of Ghawar
Field
is enhanced to
match with the basement shape map driven from the tilt derivative mathematic filtered gravity data that will guide future
exploration and development of the
field
. The objective of this study is to enhance the Paleozoic reservoir
structure
image
over Tinat
Field
to guide its future exploration and delineation. The study depended on integrating new seismic
structure
maps with the tilt filtered gravity data and the well data. The tilt filter technique tends to enhance mapping of the subtle
magnetic and gravity anomalies, and maximizes characterizing the geometrical contrast of the internal basement
structure
that supports the seismic
structure
image. Results of the study indicated strong penetrative basement
structure
fabric at the
Paleozoic reservoir level that might cause future semi-compartmentalization along the
field
. The
structure
setting
of the
field
indicates set of north- south oriented push-up fault closures over a series of basement micro-blocks. Several east-west
stress-partitioning faults dissect the
field
into different domains with a strike-slip transpression sense of motion. The
basement shape map driven from tilt gravity filtered data of the Tint
field
, in the Eastern Province of Saudi Arabia, mimics to
a great extent, the seismic
structure
image at the top of the Late Paleozoic Unaiyza reservoir