SIMULATING THE EFECTS OF SYNTACTIC FOAM ON ANNULAR PRESSURE BUILDUP DURING ANNULAR FLUID EXPANSION IN A WELLBORE

摘要

Systems and methods for simulating the effects of syntactic foam on annular pressure buildup during annular fluid expansion in a wellbore to mitigate annular pressure buildup in the wellbore.

主权项

1. A method for simulating the effects of syntactic foam on annular pressure buildup during annular fluid expansion in a wellbore, which comprises:
a) calculating one of an elastic foam volume change in a region of a casing string annulus and a crushed foam volume change in the region of the casing string annulus; b) calculating an adjusted casing volume change for the region in the casing string annulus using i) one of the elastic foam volume change and the crushed foam volume change; and ii) a casing volume change; c) calculating an adjusted annular pressure buildup for the region in the casing string annulus using i) a fluid volume change; and ii) one of the casing volume change and the adjusted casing volume change; d) repeating steps a)-c) for each region in the casing string annulus; e) repeating steps a)-d) for each casing string annulus in a combined casing string; and f) repeating steps a)-e) using a computer processor until a global pressure equilibrium is achieved in the combined casing string.