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Abstract

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Chapter from:
AAPG Memoir 67: Seals, Traps, and the Petroleum System, Edited by R. C. Surdam, (p. 1-12)
(Publication Subject: Oil Methodology, Concepts)

AAPG Memoir 67: Seals, Traps, and the Petroleum System. Chapter 1: Comparison of Seal Capacity Determinations: Conventional Cores vs. Cuttings, by Robert M. Sneider, John S. Sneider, George W. Bolger, and John W. Neasham
Copyright © 1997 by The American Association of Petroleum Geologists. All rights reserved.


Chapter 1

Comparison of Seal Capacity Determinations: Conventional Cores vs. Cuttings

by

Robert M. Sneider
John S. Sneider

Robert M. Sneider Exploration, Inc. Houston, Texas, U.S.A.

George W. Bolger
John W. Neasham1

PetroTech Associates Houston, Texas, U.S.A.
1
Now with Poro Technology, Houston, Texas

ABSTRACT

Comparison of hydrocarbon column heights (HCHs) calculated from seals recovered in conventional cores with HCHs calculated by using cuttings from the same interval indicates that mercury/air capillary pressure measurements of cuttings can be extremely useful to estimate seal capacity. An empirical adjustment factor (EAF), expressed in psi, needs to be added to the capillary pressure value determined on cuttings to approximate that measured with mercury/air capillary pressure of conventional cores.

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