Nov. 14, 2012


Compared to time migration, depth imaging should yield simpler structure, higher spatial and vertical resolution, and a more stable phase response. It is also the appropriate input for inversion and other attributes that estimate reservoir properties and mitigate risk. However, the interpreter must actively guide the depth-imaging process to ensure a reasonable, geologic result. This talk reviews the planning and QC of depth imaging in a manner that establishes an appropriate dialogue between the interpreter and the processor.

When choosing a company (or companies) for imaging, it is critical they provide the level of technology suitable for the interpretive goals. As such, the (bidding) dialogue should include:

-Defining deliverables in terms of interpretive goals

-Establishing a minimalist approach to initial time processing

-Choosing appropriate migration and tomography algorithm(s)

-Discussing and establishing the target (final) velocity resolution

-Ensuring that deliverables are compatible with forming 3rd-party attributes

When beginning the imaging process, a critical step is the formation of the initial velocity model. Figure 1 is an example of an acceptable, smoothly-varying model. In general, the addition of detail early in velocity-model formation is to be avoided.

Featured Speakers

Speaker Scott MacKay

Date and Time

Wed, Nov. 14, 2012

7 a.m. - 8:30 a.m.
(GMT-0500) America/Chicago

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Fugro Building

6100 Hillcroft Ste 100
Houston, Texas 77081

Group(s): Westside