Earth boring, well treating, and oil field chemistry inventions 02/07

20070042912 - Delayed tackifying compositions and associated methods involving controlling particulate migration: Delayed tackifying compositions are provided for reducing particulate migration in subterranean formations, the compositions comprising an aqueous tackifying agent and a delayed-acid releasing activator.... Agent: Robert A. Kent

20070042911 - Method for reducing the viscosity of viscous fluids: A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The... Agent: Nixon & Vanderhye, PC

20070042914 - Rapid setting plugging compositions for sealing subterranean formations: Rapid setting plugging compositions comprising oil, clay, magnesium chloride, and magnesium oxide powder are provided for sealing permeable zones in subterranean formations. The permeable zones may be sealed by passing the plugging composition and water to the subterranean formation. While being exposed to downhole temperatures in a range of from... Agent: Craig W. Roddy Halliburton Energy Services

20070042913 - Wellbore treatment compositions containing foam extenders and methods of use thereof: This invention relates to fluid compositions used in treating a subterranean formation. In particular, the invention is aqueous wellbore treatment compositions which are foams containing a viscosifying agent, a foam extender, a gas component, and a surfactant, as well as methods of forming such fluids, and uses thereof. The viscosifying... Agent: Schlumberger Technology Corporation

20070037713 - Methods and compositions for reducing the viscosity of treatment fluids used in subterranean operations: Methods and compositions for reducing the viscosity of subterranean treatment fluids that comprise a gelling agent utilizing breakers that comprise hydroquinone and/or a derivative thereof. In one embodiment, the present invention provides a breaker for use in reducing the viscosity of a treatment fluid that comprises a gelling agent, the... Agent: Robert A. Kent

20070032386 - Internal breaker for oilfield treatments: A composition and method for improving the fluid efficiency of many oilfield treatments is given. The composition is a solid additive, in a viscosified fluid, in a size range small enough that it enters formation pores; it optionally bridges there to form an internal filter cake, and then decomposes to... Agent: Schlumberger Technology Corporation

20070032387 - Low volatile phosphorous gelling agent: Liquid hydrocarbons are gelled by the introduction of a phosphate ester and a crosslinking agent for use in oil recovery. Generally a proppant, delayed gel breaker and other modifiers are added to the gelled hydrocarbon to improve the oil recovery process. The phosphate ester used in this method and composition... Agent: Isaac A. Angres Suite 301

20070032388 - Zeolite-containing drilling fluids: Methods and compositions for wellbore treating fluids, especially drilling fluids, that comprise zeolite and a carrier fluid.... Agent: Craig W. Roddy Halliburton Energy Services

20070027036 - Variable density drilling mud: One embodiment of the invention is a variable density drilling mud comprising compressible particulate material in the drilling mud wherein the density of the drilling mud changes in response to pressure changes at depth. A second embodiment is a method for varying drilling mud density. The method comprises estimating the... Agent: Fish & NeaveIPGroup Ropes & Gray LLP