دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a large, load supporting formation that may serve to reduce the total overburden load on a pay zone. These formations may cover hundreds of square miles over a basin. A second use is as a semi-stable structure of sand grains around a perforation or other

n: a decrease in the volume of a stratum due to pressure exerted by overlying strata, evaporation of water, or other causes.

n: The process of breaking cuttings and compacting it into sample with compaction cell when doing preventing caving test.

a crushing of the matrix structure as overburden loads press down on the rock, reducing the pore space. During production of the well, the load on the matrix increases as the pore-filling fluids are removed. These loads may reduce the porosity of the rock

n: see over- burden pressure.