Abstract: A system for storing materials in an earthen subterranean formation includes a wellbore extending from a terranean surface into the subterranean formation, the wellbore extending from an uphole end at the terranean surface to a longitudinally opposing downhole end, a casing string extending through the wellbore, wherein the casing string is cemented in place in the wellbore, a subterranean storage chamber formed in a salt deposit of the subterranean formation and fluidically connected to the wellbore, the storage chamber at least partially filled with brine and having a lateral width that exceeds a vertical height of the storage chamber, wellbore-transportable foreign material that is stored in the storage chamber.

Abstract: A drill bit for cutting through a downhole metal structure includes a bit body having a central axis and a bit face. The bit body is configured to rotate about the central axis in a cutting direction. In addition, the bit includes a cutting structure disposed on the bit face. The cutting structure includes a plurality of circumferentially spaced blades and a plurality of primary cutter elements mounted to each blade. Each primary cutter element has a forward-facing primary cutting face. Each primary cutter element is made of a whisker ceramic composite.

Abstract: A method of installing a drillable bolt into earth, rock or a like material. The drillable bolt comprising a threaded hollow tube (1) with a cutting tip (4) at one end. The drillable bolt being driven into the earth, rock and like material with simultaneous provision of a lubricating fluid being supplied to pass up between the inner surface of hollow tube (1) and the resultant core (30) to the cutting tip (4). Once drilled to the desired position, a liquid cement (25) urged between the core (30) and the inner surface of the hollow tube (1) and past the cutting tip (4) and around to the external surface of the hollow tube (1). The liquid cement (25) securing the drillable bolt in the earth rock, or like material.

Abstract: This specification discloses that certain polychlorinated or polybrominated aromatic hydrocarbon compounds can be incorporated in thermosetting polymer compositions to make the thermosetting compositions flame retardant without injuring the desirable physical and electrical properties of the thermosetting compositions when in the thermoset state. These polyhalogenated aromatic hydrocrbons are apparently caused to react into the thermosetting composition, provided there is a minimum of 1 mol of a polyunsaturated monomer containing carbon to carbon unsaturation for each 3 mols of polychlorinated aromatic hydrocarbons.

Abstract: This specification discloses that certain polychlorinated or polybrominated aromatic hydrocarbon compounds can be incorporated in thermosetting polymer compositions to make the thermosetting compositions flame retardant without injuring the desirable physical and electrical properties of the thermosetting compositions when in the thermoset state. These polyhalogenated aromatic hydrocarbons are apparently caused to react into the thermosetting composition, provided there is a minimum of 1 mol of a polyunsaturated monomer containing carbon to carbon unsaturation for each 3 mols of polychlorinated aromatic hydrocarbons.