Patent ID: 6382319
Filing Date: 2002-05-07
Classification: E21B

Abstract:
In a method of depositing gravel pack aggregate within a hydrocarbon well production zone, said method comprising the preparation steps of:a. providing fluid in a wellbore to exert a hydrostatic pressure overburden against a production zone wall portion of said wellbore; b. providing a completion string in said wellbore, said completion string having a crossover flow assembly, a central flow channel therethrough and a gravel screen disposed between said central flow channel and said production zone wall; c. providing an annulus obstruction to fluid flow in a substantially annular portion of said wellbore around said completion string, said annulus obstruction being disposed proximately of said crossover flow assembly and above said gravel screen portion; d. providing a pipe bore obstruction to fluid flow through said central flow channel proximate of said crossover flow assembly; and, e. providing a first fluid by-pass channel in said crossover flow assembly across said annulus obstruction to maintain a hydrostatic pressure overburden on said production zone wall when said annulus obstruction and said pipe bore obstruction are simultaneously provided.