Earth boring, well treating, and oil field chemistry inventions 03/06

20060068994 - Fast hydrating guar powder, method of preparation, and methods of use: A guar or a guar derivative powder having a D50 particle size of less than 40μ which reaches at least 70% hydration within 60 seconds at about 21° C., is disclosed. It has been found that the improved hydration can be seen at temperatures as low as 0.6° C. The...

20060058197 - Selective fracture face dissolution: A method is given for acid fracturing a subterranean formation for improving the flow of fluids. The principal source, optionally the sole source, of the acid is a solid acid-precursor, optionally injected with an additional solid that is inert and that masks a portion of the newly created fracture faces...

20060058198 - Dry blend fracturing fluid additives: A method and composition for crosslinking a polymer based fluid includes providing a dry blend of crosslinker and delay agent. The crosslinker and delay agent are mixed and granulated in a dry form prior to addition to the polymer fluid....

20060058199 - Oil recovery composition and method using arylalkyl sulfonate surfactants derived from broad distribution aplha-olefins: An oil recovery method is disclosed which uses injection fluids containing a particular class of arylalkyl sulfonate surfactants that are derived from an alpha-olefin stream having a broad distribution of carbon numbers ranging from more than 10 to greater than 30. The alpha-olefin stream is reacted with sulfur trioxide to...

20060052251 - Time release multisource marker and method of deployment: The present invention provides time released markers for use with single reservoir and commingled wells. The invention accomplishes the time release of markers by coating or encapsulating marker particles or by coating a proppant which has been saturated with a marker. After coating or encapsulation, the marker is injected into...

20060046937 - Viscoelastic fluids containing nanotubes for oilfield uses: The present invention relates to viscoelastic fluids that contain nanotube structures that may be used advantageously as oilfield stimulation fluids in many different applications, most particularly as a fracturing fluid. Viscoelastic fluid compositions of the present invention include an aqueous medium, a viscoelastic surfactant, an organic or inorganic acids, or...

20060046938 - Methods and compositions for delinking crosslinked fluids: One embodiment of the present invention provides a method of treating a subterranean formation comprising introducing to a portion of a subterranean formation a slurry comprising a solid, particulate chelating agent substantially coated with a degradable material and a viscosified treatment fluid comprising a crosslinked gelling agent, allowing the degradable...

20060046939 - Alcohol acidizing composition for treating a well to increase production: An alcohol acidizing system for use in acidizing and cleanup in oil wells and gas wells. The system comprises an aqueous acid, such as hydrochloric acid, and at least one of an alkyl alcohol, such as methanol, ethyl alcohol, iso-propanol or the like, or any mixture thereof, an acetylenic alcohol...