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Title: Two-step method for horizontal gravel packing

This patent describes a method for placing gravel within an annulus formed in a non-vertical borehole by the placement of a screen within the borehole. It comprises: injecting into the annulus a slurry of gravel and a medium viscosity carrier fluid to pack from 50% to 75% of the screen-borehole annulus; and injecting into the annulus a slurry of gravel and a low viscosity carrier fluid until the annulus is completely packed.
Authors:
Publication Date:
OSTI Identifier:
5496081
Report Number(s):
US 5058677; A
PPN: US 7-585424
Resource Type:
Patent
Resource Relation:
Patent File Date: 20 Sep 1990
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; DIRECTIONAL DRILLING; WELL COMPLETION; OIL WELLS; STOWING; DRILLING FLUIDS; HORIZONTAL INTEGRATION; INJECTION WELLS; SLURRIES; VISCOSITY; WELL STIMULATION; DISPERSIONS; DRILLING; FLUIDS; MIXTURES; STIMULATION; SUSPENSIONS; WELLS 020300* -- Petroleum-- Drilling & Production