Halliburton Energy Services, Inc.

Grinding & Sizing Company LLC

Corsicana Technologies, Inc.

Robert W Pike

Kenneth William Pober

Jeff Kirsner

Thomas Charles Kowalski

Gregory A Ruark

A drilling fluid lubricant and method for drilling using same comprising a blend of beads having varying densities such that the beads provide lubricity at both the top and bottom portions of a horizontal drill string during horizontal, directional, or expanded extended reach drilling.

Synergistic bead lubricant and methods for providing improved lubrication to drilling fluids for horizontal drilling

Environmentally acceptable or regulatory compliant oil-based drilling fluids and methods of using same in drilling a wellbore in a subterranean formation are disclosed. The fluids are able to meet environmental regulations while maintaining acceptable oil mud rheology and overall oil mud performance. The fluids are comprised of an invert emulsion. The base or continuous phase of the emulsion is comprised of esters blended with isomerized olefins, and/or other hydrocarbons, such as paraffins, mineral oils or glyceride triesters or combinations thereof. Alternatively, the emulsion has as a base comprising isomerized olefins blended with other hydrocarbons such as linear alpha olefins, paraffins or naphthenes.

Drilling method using isomerized olefins and paraffin hydrocarbons as base oils for invert emulsion oil muds

Gelatin capsules containing oil field chemicals, preferably weighted with a heavy metal compound, are made more stable under certain conditions by the incorporation of a strong chelating agent. The microcapsules can provide an extended treatment period since many materials that would damage the microcapsules are controlled by the chelating agent.

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Houston, TX, United States of America

Robert W Pike