Method for gravel packing a well

Details Method for gravel packing a well Method for gravel packing a well

E - Fixed Constructions

21

B

166/9

E21B 43/04 (2006.01) C09K 8/56 (2006.01)

Patent

CA 2008752

PATENT C-56075/56127 ABSTRACT OF THE INVENTION A method of packing a well, particularly an oil, gas or water well comprises injecting a particle/liquid slurry into a wellbore wherein the particles comprise particles of at least two different densities independently selected from the density range of about 0.1 to about 4Ø The at least two different density particles may be injected as blend of different density particles or in a sequential series of slugs, each slug having a single density particle suspended therein. This technique gives substantially equivalent packing efficiency throughout the annulus, perforations and perforation chambers when compared with gravel packing using specialized low to medium density materials.

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