[Announce] Stark Reality Horizon Tools Plugin

[Tracy Stark]

All,

    Stark Reality will soon be releasing a Horizon Tools plugin in OpendTect
v3.2.  A preliminary release of this commercial plugin will be available
before the end of 2008, with the first full release in late January or early
February 2009.

    Those purchasing a license to this commercial plugin before the end of
2008 will receive a 40% discount and a year of maintenance releases.

    The first release of "Stark Reality Horizon Tools" will be accessible
from the ³Utilities² menu and will contain the following options:
> * Dip, Azimuth, and friends
> * Spatial Smoothing
> * Residual Structure
> * Horizon Closure - Simple
> * Horizon Closure - Advanced
 
    All of these options take an existing horizon and place the results in
either a new horizon, or as surface data under the input horizon.

    The closure calculation is the most novel part of this plugin, however
the spatial smoothing and residual structure options include a proprietary
fast smoothing option.  The compute effort of this fast smoothing routine is
mostly independent of the size of the smoother.  For example, a 31 by 31
box-car takes about the same time than a 3 by 3 box-car.

    The closure calculation methods makes use of a ³Spill or Seal² model.
In this model, certain points on the horizon are classified as either Spill
points or Seal points.  The routine uses these designations to determine the
trapping potential of the horizon.  It outputs several closure attributes as
surface data.  The current closure attributes are:
* Number ­ Each connected closure found on the horizon is automatically
assigned a unique number
* SSLC ­ denotes points that Spill, Seal, Leak or are part of a Closure.
* Max Column Height ­ vertical distance from deepest contour to top of the
closed structure 
* Local Column Height - vertical distance from current contour to top of the
closed structure 
* Area ­ represents the spatial extent of entire closure
* Contour area ­ represents spatial extent of each closed contour
* Cumulative area ­ represents spatial extent of each closed contour and
those above it

    The ³Horizon Closure ­ Simple² option creates a set of ³pessimistic² and
³optimistic² closure attributes based on the automatic placement of the
Spill and Seal points.  In the ³Horizon Closure ­ Advanced² the user will
have more control over how the Spill and Seal points are determined.  In a
future release, a ³Horizon Closure ­ Expert² option will allow the user to
provide a map of their Spill and Seal points and/or adjust the quality of
the seal based on trapped column height.  Additional closure attributes and
functionality will be added to meet user requests.

    The longer term goal is to use the closure calculation routines to
create closure attribute volumes, instead of just closure attribute
surfaces.  The input for such a routine could either be an Age Volume or the
horizons generated by SSIS.

    Any one interested in more information on this plugin please reply to
starkreality at verizon.net

Sincerely,

Tracy J. Stark
STARK Research / Stark Reality, Inc.


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