<http://webisa.webdatacommons.org/85287451>	<http://www.w3.org/ns/prov#value>	"The improved drilling fluids of this invention are basically comprised of water or oil based fluids containing viscosity increasing materials, and other components as well as a hardenable epoxy sealant composition dispersed therein which becomes a part of the filter cake formed on the walls of the well bore." .
<http://webisa.webdatacommons.org/85287451>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/334758106>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/85287451> .
<http://webisa.webdatacommons.org/85287451>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .