Abstract: A fluid diversion system for injection into a subterranean formation undergoing hydraulic fracturing operations. The fluid diversion system includes a carrier fluid comprising water; a cross-linked polymer; and a dispersion of “substantially insoluble” degradable bridging particulates in the carrier fluid. The degradable bridging particulates are exemplified by PLA, HEC, CMC, Guar gum, and/or HPS. When injected into a subterranean formation, the fluid diversion system is operative for diverting fluid for a predetermined period of time until degradation of the degradable components of the fluid diversion system restores permeability.

Abstract: A fluid mixture containing a high molecular weight polysaccharide composition with improved viscosity stability at high downhole temperatures and pressures encountered in common oil field applications, including hydraulic fracturing stimulation, drilling, cementing, and coil-tubing. The composition includes a salicylic acid solution, which, being a free-radical scavenger, prevents free-radical reactions within the high molecular weight polysaccharide that would otherwise adversely affect viscosity. The composition may also include an ascorbic acid solution, which reduces at least a portion of the oxidized salicylic acid to restore its function as a free-radical scavenger to prevent additional free-radical reactions with the high molecular weight polysaccharide. An alcohol solvent may also be utilized to increase the solution loading of salicylic acid.

Abstract: A lightened rotating member for a machine. The lightened member includes a plurality of radially machined penetrations within at least one main bearing support journal of the rotating member. The plurality of penetrations is formed around the circumference of the main bearing journal face, with the penetration centerline directed radially toward the rotating member's axial centerline. An even number of penetrations may be utilized with minimal adverse effect on the balance of the rotating member. Odd numbers of penetrations may require subsequent rebalancing. The rotating member may be any rotating member that utilizes one or more main bearing support journals.

Abstract: A valve assembly for use in high pressure pumps is designed for easy replacement for example in the suction inlet here for a high pressure pump. The design utilizes a combination of screw threads and a locking member to provide structural strength for the valve to be placed in and withdrawn from the inlet bore.

Abstract: A fluid end for a high pressure pump is mounted to the power end in such a manner so as to allow free access to the plunger portion of the fluid end for maintenance or removal of the fluid end. The fluid end sits on a mounting plate which has a key slot. The lower surface of the fluid end also has a key slot and a shear bar is located within the slots. The fluid end further includes a plurality of tensile studs that secure the fluid end to the mounting plate which is secured to a support frame.

Abstract: Nanoparticles are added to a fluid containing a wetting agent and the fluid is pumped down a well to enhance wetting of solid surfaces in and around the well before pumping an acid solution down the well. After acid is pumped, a fluid containing nanoparticles and wetting agent is again pumped down the well, leading to improved flow capacity of the well.

Abstract: Nanoparticles are added to a fluid containing a wetting agent to enhance wetting of solid surfaces in and around the well and removing a water-block from the well. The wetting agent and nanoparticles combine to produce a wetting of the surfaces of the rock that allows recovery of the excess water near the well (water block).