American Oil and Gas Reporter - April 2016 - 39

Integrated Data Analysis
Provides Accurate Picture
Of Delta House Subsurface
By Eric Zimmermann, Carlos Guzman,
Anish Kumar and Michael Mahnke
HOUSTON-Although considerable knowledge has been derived from years of drilling

and development experience in the deepwater Gulf of Mexico, the basin's geology
continues to offer many surprises.

Given the subsurface complexities, geological analyses based on only one kind of

data can lead to an incomplete understanding of the reservoir, which in turn, can lead to
ineffective drilling decisions and field development plans. Integrating borehole seismic,

borehole geology, and reservoir pressure and fluid sampling with surface seismic interpretations is essential, especially in regions with challenging geology.

In developing the Delta House project in the eastern Mississippi Canyon area, LLOG

Exploration Company LLC and its partners integrated subseismic-scale geological in-

terpretations from borehole image data and high-frequency vertical seismic profile

reflection data with state-of-the-art lower-frequency surface-seismic data. The dip and

image data obtained from the borehole imager, VSP, and surface seismic appeared to

be contradictory when considered individually. However, a careful evaluation of the data
reconciled the differences and provided a more complete picture of the subsurface.

APRIL 2016 39



American Oil and Gas Reporter - April 2016

Table of Contents for the Digital Edition of American Oil and Gas Reporter - April 2016

Contents
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