| http://www.w3.org/ns/prov#value | - t sealing acrossUS7789146May 21, 2008Sep 7, 2010Schlumberger Technology CorporationForming a slurry of 3 groups of particles, each having a particle size distribution 3 times larger than the next; one of the 2nd and 3rd groups contains a degradable material and a reactive solid; circulating the slurry in a well bore with a screen so that all types of particles are deposited on itUS7875574Oct 27, 2
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