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Titolo:
GEOLOGIC RISKING GUIDE FOR PROSPECTS AND PLAYS
Autore:
WHITE DA;
Indirizzi:
3202 W ANDERSON,SUITE 208 418 AUSTIN TX 78757
Titolo Testata:
AAPG bulletin
fascicolo: 12, volume: 77, anno: 1993,
pagine: 2048 - 2061
SICI:
0149-1423(1993)77:12<2048:GRGFPA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAS PLAYS; OIL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
D.A. White, "GEOLOGIC RISKING GUIDE FOR PROSPECTS AND PLAYS", AAPG bulletin, 77(12), 1993, pp. 2048-2061

Abstract

The outlined procedure ties both the absolute level and the relative high grading of assessed prospect chances of success to the regional chances of the surrounding oil and gas play (prospect group). These estimated chances strongly influence exploration economic analyses. The average prospect chance is established from the group vs. the individual risk aspects of the play, then the specific prospects are assigned higher or lower chances according to relative merit. Maintaining the average level keeps prospect and play assessments entirely compatible. Group and individual risk factors are documented fully to help make geologically proper summations and to calculate the proper expected valuefor economic evaluation. Any dependencies between risk factors are analyzed carefully to avoid risking the same basic factor twice. Chancesare consistently related to exceeding a practical, uniform minimum field size for the play. The chosen minimum may range from very small tovery large, depending on the focus of the assessor, data availability, and maturity of the area. Postdrilling checks against actual experience include determining if the sum of the predrill risked-mean hydrocarbon volumes approximately equals the sum of the discoveries. The basic approach also works for assessing and aggregating different possiblereservoir zones in a single prospect. The system can make fullest useof play maps in locating and quantifying the potentially most rewarding areas for exploration, and can be used by independents, major companies, and governments. Systematic geologic risk assessments should help explorers find oil and gas more profitably.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/08/20 alle ore 23:01:09