深部油气层的测井解释理论和方法

THEORY AND METHOD FOR THE IDENTIFICATION OF THE PRESENCE OF HYDROCARBON-BEARING INTERVAL IN DEEP WELL LOGGING

近年来,我国石油勘探向深部地层进军,发现了一些新的油气藏。在砂——泥岩剖面正常压实情况下,地层压力随着埋藏深度的增加,引起孔隙度减小,同时也会引起渗透率降低。本文提出地层孔隙度随深度变化用于深部油气层的测井解释理论和方法,在生产、研究中应用,获得满意的效果。

One of the most important tasks we faced with in recent years is to conquer the deep hydrocarbon bearing formation and a number of new oil reservoirs have actually been found there. Under normal conditions, the pressure acted on the strata will become greater with the increase of the depth while the porosity and the permeability will become lesser. Considering the fact mentioned above, the author has put forward a new theory and method for the explanation of well logging and by virtue of this method, satisfactory effects have been achieved both in production and in basic research.