Abstract: There is disclosed herein a composition and method for removing a sulphur compound or carbon dioxide from a substance and methods for its use, said composition comprising a metal at between about 0.5 to 25 percent by weight, a base at between about 1 to 99 percent by volume, a chelating agent at between about 0.1 to 50 percent by weight and water.

Abstract: There is disclosed herein a solution for removing a sulphur compound or carbon dioxide from a fluid and methods for its use, said solution comprising a metal at between about 0.05 to 25 percent by weight, an amine at between about 10 to 80 percent by volume and water. The sulphur compound may be hydrogen sulphide or a mercaptan. In one aspect, the method is practiced at temperatures significantly below zero.

Abstract: There is disclosed herein a solution for removing a sulphur compound or carbon dioxide from a fluid and methods for its use, said solution comprising sulphuric acid, a metal at between about 0.05 to 10 percent by weight, an amine at between about 10 to 80 percent by volume and water. In one aspect, the sulphuric acid is in the form of a chelating agent and in another it is in the form of a derivative of a sulphur-based acidic compound. The sulphur compound may be hydrogen sulphide, carbonyl sulphide or a mercaptan. In one aspect, the method is practiced at temperatures significantly below zero. In another aspect, this invention is an acid/amine solution comprising sulphuric acid, sulphuric acid in the form of a chelating agent, or a derivative of a sulphur-based acidic compound and monoethanolamine. This solution may be used as a source of monoethanolamine.

Abstract: There is disclosed herein a composition and method for removing a sulphur compound or carbon dioxide from a substance and methods for its use, said composition comprising a metal at between about 0.5 to 25 percent by weight, a base at between about 1 to 99 percent by volume, a chelating agent at between about 0.1 to 50 percent by weight and water.

Abstract: The present invention relates to a novel proppant particle comprised of polyurethane resin. More specifically, these particles are of low density, yet have a sufficiently high compressive strength to be useful as proppants in downhole oil and gas operations. The present invention also relates to a method of using the proppant particle in downhole oil and gas operations including well completion and stimulation operations, for example hydraulic fracturing of subterranean formations.

Abstract: A method of fracturing or breaking rock includes the step of directing high intensity white light (radiation) at the rock to induce thermal stress sufficient to fracture the rock. The intensity of the energy source may be varied to control the manner in which the rock fractures. An approach for generating high intensity white light includes an elongate arc chamber and an elongate concave reflector. The arc chamber and reflector may be shielded from airborne particulate matter by an air shield or a rotating or reciprocating translucent shield.