Abstract: A configurable keyboard comprises a link to a computing device, and a plurality of keys, each of the plurality of keys accepting input from the computing device via the link. The input specifies a function for each of the plurality of keys and each of the plurality of keys displays an image corresponding to the function.

Abstract: The present invention is directed to a high temperature stable composition capable of imparting a combination of pseudoplasticity and fluid loss control properties to aqueous systems. The composition is a combination of:(a) a hydroxy containing aluminum component(b) a chemical compound capable of converting to a higher oxidation state under alkaline conditions; and(c) a reaction product of a polymeric substance selected from polyvinyl alcohol or hydroxyalkyl cellulose reacted with at least 0.1 percent of stoichiometry of a cross-linking agent selected from an epihalohydrin or an aldehyde containing or generating agent;wherein the amount of component (a) is at least 10 wt. percent of component (c) and component (b) is at least 20 wt. percent of component (c).The invention is further directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved fluid.

Abstract: A lost circulation controller for use in drilling fluids formed from cocoa bean shell material having a particle size distribution from 2 to 100 mesh (U.S. Std.) with at least about 25 percent by weight of said particulate material being from 2 to 10 mesh (U.S. Std.).

Abstract: The present invention is directed to a high temperature stable composition capable of imparting fluid loss control properties to aqueous systems. The composition is a combination of:(a) a solid, particulate silicate or alumino-silicate material;(b) a chemical compound capable of converting to a higher oxidation state under alkaline conditions; and(c) a reaction product of a polymeric substance selected from polyvinyl alcohol or hydroxyalkyl cellulose reacted with at least about 0.1 percent of stoichiometry of a cross-linking agent selected from an epihalohydrin or an aldehyde containing or generating agent;wherein the amount of component (a) is at least 50 wt. percent of component (c) and component (b) is at least 20 wt. percent of component (c).The invention is further directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved fluid.

Abstract: The present invention is directed to a high temperature stable composition capable of imparting a combination of pseudoplasticity and fluid loss control properties to aqueous systems. The composition is a combination of:(a) a solid, particulate silicate or alumino-silicate material;(b) a chemical compound capable of converting to a higher oxidation state under alkaline conditions; and(c) a reaction product of a polymeric substance selected from polyvinyl alcohol or hydroxyalkyl cellulose reacted with at least 1 percent of stoichiometry of a cross-linking agent selected from an epihalohydrin or an aldehyde containing or generating agent;wherein the amount of component (a) is at least 75 wt. percent of component (c) and component (b) is at least 25 wt. percent of component (c).The invention is further directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved fluid.

Abstract: The present invention is directed to a high temperature stable composition capable of imparting a combination of pseudoplasticity and fluid loss control properties to aqueous systems. The composition is a combination of:(a) a hydroxy containing aluminum component(b) a chemical compound capable of converting to a higher oxidation state under alkaline conditions; and(c) a reaction product of a polymeric substance selected from polyvinyl alcohol or hydroxyalkyl cellulose reacted with at least 1 percent of stoichiometry of a cross-linking agent selected from an epihalohydrin or an aldehyde containing or generating agent;wherein the amount of component (a) is at least 75 wt. percent of component (c) and component (b) is at least 25 wt. percent of component (c).The invention is further directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved fluid.

Abstract: The invention is directed to a composition capable of imparting improved fluid loss control properties to aqueous systems. The composition is formed from a combination of:(a) a solid, particulate silicate or alumino-silicate material;(b) a reaction production formed from a polyvinyl alcohol and at least 1 percent of stoichiometry of an aldehyde containing or generating agent; wherein the amount of component (a) to component (b) is in the ratio of at least about 0.75:1.Further, the invention is directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved drilling fluid.