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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Excavating an Oil Field Dinosaur-The Key to 
Dipmeter
Quality Control
Dipmeter Quality ControlBy
Terradip
Dipmeters are extremely valuable tools, especially in the current environment of high-tech seismic exploration. They are integral in resolving velocities in 3-D surveys, essential in evaluating thin-bedded lithologies, and useful in defining bed dips in sub-salt or structurally complex plays. But too often, an explorationist views the tadpole plot itself as measured data. This is an error. The tadpole plot is simply one interpretation of the original resistivity data. In many cases, fresh information can be extracted from old dipmeters by re-examining and reinterpreting the raw resistivity data.
The correct correlation among different
resistivity curves is the heart of dipmeter
computation. Assuming that the dip tool
functioned correctly, the accuracy of the
tadpole plot is a direct result of the clarity
of these correlations. In this talk, examples
will be used to show how the 60-inch raw
resistivity data can be used as a valuable
tool to assess the reliability of your old and
new dipmeter data-perhaps even answering
the age-old question, "What do I do if
the dipmeter
doesn't fit the seismic?"
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