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AAPG Bulletin, Vol. 90 (2006), Program Abstracts (Digital)

7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006

ABSTRACT: Estimating the Value of Seismic Data Before a Previous HitSurveyNext Hit is Shot; Special Reference to 4D

Karl A. Berteussen
The Petroleum Institute, Abu Dhabi United Arab Emirates, phone: 0097125085286, [email protected]

Bayesian theory is used in order to make estimates of the monetary values (EMV) of seismic information before acquiring the data. The procedure is illustrated on a hydrocarbon detection problem, on a 4D case, and on a structural resolution problem. Applying this procedure for calculating EMV one might compare a seismic project on an equal footing with any other projects competing for available funds. Obviously the Previous HitparametersNext Hit applied will be field dependent. However, making sensitivity plots help with the problem of not knowing the a priori probabilities exactly. The approach can also be used to evaluate seismic tenders. Typically they are separated into two groups, technically acceptable and unacceptable and the job is given to the lowest bidder in the technically acceptable group. Calculating the EMV for each alternative one will be able to assign a value to a Previous HitsurveyNext Hit depending on the Previous HitparametersNext Hit applied, say give a value to resolution power, to time and spatial sampling rates, fold or proven processing algorithm performance etc. This should end up with Previous HitselectingNext Hit the Previous HitsurveyNext Hit acquisition or processing alternative that in fact is best for the problem at hand. Finally, before a Previous HitsurveyNext Hit is initiated, 4D or ordinary Previous HitsurveyNext Hit, this methodology might be used to help estimate how much an oil company actually could pay for such a Previous HitsurveyTop, which should be useful information both for the receiver and producer of a tender.


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