Diamicron, Inc.

Carbo Ceramics Inc.

Dimicron, Inc.

Other

Clayton Frank Gardinier

Richard H Dixon

Dean C Blackburn

Bill Jordan Pope

Michael Alexander Vail

Louis M Pope

Jeffery Karl Taylor

Kenneth M Jensen

Jeffrey K Taylor

Robert Duenckel

Brett A Wilson

Benjamin Eldred

Troy J Medford

Louis McConkie Pope, Ii

Victoriano Carvajal

Todd M Roper

Alfred S Despres

Tim Bunton

Steve Canova

David P Harding

Claude A Krause

Mark E Richards

Victoriano Carbajal

Art B Curnow

Peter C Cook

Keith Lew

Victorian Carvajal

Robert J Duenckel

Troy Medford

Michael A Vail

Proppant particles formed from slurry droplets and methods of use are disclosed herein. The proppant particles can include a sintered ceramic material and can have a size of about 80 mesh to about 10 mesh and an average largest pore size of less than about 20 microns. The methods of use can include injecting a hydraulic fluid into a subterranean formation at a rate and pressure sufficient to open a fracture therein and injecting a fluid containing a proppant particle into the fracture, the proppant particle including a sintered ceramic material, a size of about 80 mesh to about 10 mesh, and an average largest pore size of less than about 20 microns.

Proppant particles formed from slurry droplets and methods of use

A method for making proppant particles is provided. The method can include providing a slurry of ceramic raw material, the slurry containing a reactant including a polycarboxylic acid, and flowing the slurry through a nozzle in a gas while vibrating the slurry to form droplets. The method can also include receiving the droplets in a vessel containing a liquid having an upper surface in direct contact with the gas, the liquid containing a coagulation agent. The method can further include reacting the reactant with the coagulation agent to cause coagulation of the reactant in the droplets. The droplets can then be transferred from the liquid and dried to form green pellets. The method can include sintering the green pellets in a selected temperature range to form the proppant particles. In one or more exemplary embodiments, the reactant can be or include a PMA:PAA copolymer.

Methods of making proppant particles from slurry droplets and methods of use

A foundry media pellet includes a sintered ceramic material having a size from about 10 AFS GFN to about 110 AFS GFN, and a surface roughness of less than about 4 microns.

Foundry media formed from slurry droplets and methods of use

Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurrence of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.

Use of Sn and pore size control to improve biocompatibility in polycrystalline diamond compacts

Proppant material for hydraulic fracturing is provided. The particles of the proppant are formed by drip casting. A slurry of finely divided ceramic particles is flowed through nozzles and formed into droplets under the influence of vibration. Uniform sized, smooth surface, spherical green particles are formed. The green particles are dried and sintered to form the proppant. The proppant is used in the process of hydraulic fracturing of wells.

Proppant particles formed from slurry droplets and method of use

An improved composition of titanium sintered titanium carbide is provided. The composition provides an improved degree of strength and toughness and improved compatibility with medical imaging. The composition provides good compatibility with sintered polycrystalline diamond, achieving a good mechanical fit in terms of the combined compressibility and thermal expansion during the sintering process to minimize stress or cracking between the substrate and the diamond layer.

Use of Ti and Nb cemented in TiC in prosthetic joints

Use of SN and pore size control to improve biocompatibility in polycrystalline diamond compacts

Articulating diamond-surfaced spinal implants are disclosed. The implants use sintered polycrystalline articulation surfaces which are attached to spinal endplates and which are implanted to replace damaged spinal joints. The implants provide a long wearing and biocompatible articulation surface. Materials which may be used to make the spinal implants and manufacturing and finishing techniques for making the implants are also disclosed.

Articulating diamond-surfaced spinal implants

Growing community of inventors

American Fork, UT, United States of America

Clayton Frank Gardinier