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

20060142165 - Methods and compositions for treating subterranean formations using sulfonated gelling agent polymers: Treating fluids comprising sulfonated gelling agent polymers, and methods of use in treating subterranean formations, are provided. The treating fluids comprise water and one or more sulfonated gelling agent polymers. In one embodiment, the methods comprise providing a treating fluid that comprises water and one or more sulfonated gelling agent...

20060142166 - Method using particulate chelates to stimulate production of petroleum in carbonate formations: A method and composition for stimulating petroleum production from carbonate reservoirs by employing chelating agents, such as EDTA, which are in particulate form rather than aqueous solutions of chelating agents. The use of particulate chelants, which are relatively unstable in acidic solutions, results in a stimulation fluid with a very...

20060135372 - Controlled degradation of filtercakes and other downhole compositions: A method for the controlled de-functionalization of downhole polymers comprising contacting downhole, water-dispersible, polymeric material with a dehydrating agent until the water-dispersible polymeric material is sufficiently degraded to be removed. The water-dispersible polymeric material can be found in the downhole formation of a filtercake on production walls, other downhole polysaccharide...

20060116294 - Drilling fluid systems comprising latex particle(s): Latex additives, methods for treating latex additives, drilling fluid systems, and lost circulation pills comprising the latex additives, the latex additive comprising latex particles having a particle size distribution before aging comprising an average particle diameter of about 1 micron or less; and a quantity of one or more water...

20060116295 - Method of delaying the setting time of crosslinked lost circulation control pills: There is disclosed a method of delaying the setting time of aqueous lost circulation control pills. The aqueous lost circulation control pills contain a crosslinkable polymer viscosifier, one or more water retention additives, a crosslinking agent, a pH control agent, and a crosslink time regulator. The method comprises utilizing as...

20060116296 - Shale inhibition additive for oil/gas down hole fluids and methods for making and using same: An under-balanced drilling fluid additive is disclosed which reduces reactive shale and/or clay swelling during under-balanced drilling operations, where the additive includes an effective amount of a choline salt. A method for under-balanced drilling is also disclosed including the step of circulating a drilling fluid including an effective amount of...