- Houston TX, US Joshua W. Webster - Sand Springs OK, US Jason Hill - Bristow OK, US Joe D. Butler - Tulsa OK, US Justin Shrum - Calremore OK, US Bryan Mullins - Claremore OK, US
International Classification:
F04D 29/22 F04D 29/20 F04D 29/18
Abstract:
A method and apparatus for a centrifugal pump according to which an annular retainer is positioned around a first end portion of a pump shaft, an open end portion of a compression cylinder is positioned around the first end portion of the pump shaft so that the pump shaft extends within an internal cavity of the compression cylinder, the compression cylinder is moved towards an annular groove formed in the first end portion of the pump shaft, and the annular retainer is sprung into the annular groove. In some embodiments, springing the annular retainer into the annular groove constrains one or more impellers and one or more annular spacers between the annular retainer and another annular retainer connected to the pump shaft.
Diffuser Assembly For Upward, Downward And Radial Pump Protection
A diffuser subassembly for use in downhole submersible pump assemblies includes a bearing set for supporting a drive shaft of the pump assemblies. The bearing set includes a sleeve for supporting the drive shaft in upward, downward and radial directions. The sleeve includes a central flange captured axially between a pair of bushings fixed to a diffuser body. Axial loads from the drive shaft may be transferred through the central flange of the sleeve to one or the other of the bushings into the diffuser body to accommodate upward and downward thrust forces. The bushings may be keyed to discourage rotational motion with respect to the diffuser body.
Self-Orienting Gas Evading Intake For Submersible Pumps
- Houston TX, US Donn J. Brown - Broken Arrow OK, US Joshua Wayne Webster - Owasso OK, US
International Classification:
E21B 43/12 F04D 13/10 F04D 29/70
Abstract:
A self-orienting gas evading intake for a submersible pump provides an efficient, reliable and inexpensive system for pumping a downhole fluid to a surface. An intake section of a submersible pumping system may comprise a blocker sleeve disposed between an external housing and an eccentric intake. The intake section may be self-orienting such that a gas component of the fluid ascends the borehole to separate from a liquid component of the fluid. Actuation of a blocker sleeve exposes one or more ports of the external housing while blocking one or more other ports. The liquid component is drawn into the intake section through an exposed port and through one or more openings of the eccentric intake. The liquid component may then be drawn into the pump. As the liquid component comprises non-detrimental amounts, if any, of a gas component, the pump operates efficiently and effectively.
- HOUSTON TX, US Joshua Wayne Webster - Sand Springs OK, US Wes John Nowitzki - Tulsa OK, US Casey Laine Newport - Tulsa OK, US
International Classification:
F04D 29/44 E21B 43/12 F04D 1/06 F04D 29/62
Abstract:
An electric pump may include a stack of diffusers including a first diffuser and a second diffuser. The first diffuser includes a recess therein defining an inner recess surface substantially circumscribing a primary diffuser axis. The second diffuser includes a lip projecting into the recess of the first diffuser. In response to a differential torque applied to the first and second diffusers about the primary diffuser axis, the lip of the second diffuser may engage the inner recess surface of the first diffuser, and thereby prevent relative rotation of the diffusers with respect to one another. An outer perimeter surface of the lip and the inner recess surface may define polygonal shapes or other non-circular profiles.
Crossover System And Apparatus For An Electric Submersible Gas Separator
- Houston TX, US Wesley John NOWITZKI - Tulsa OK, US Joshua Wayne WEBSTER - Sand Springs OK, US
International Classification:
E21B 43/38 E21B 43/12
Abstract:
A crossover of an electric submersible pump (ESP) gas separator. The crossover comprises a skirt defining a plurality of exits, passageways, and entrances, each exit associated with one of the passageways and one of the entrances, wherein each entrance is proximate to an inner chamber of the gas separator and a jacket circumferentially surrounding the skirt and defining a plurality of exits, wherein the rotational position of the jacket relative to the skirt is adjustable.
- Houston TX, US Joshua Wayne WEBSTER - Owasso OK, US Wesley John NOWITZKI - Tulsa OK, US
International Classification:
F04D 13/10 F04D 29/041 F04D 29/044
Abstract:
A retaining ring anti-migration system and method. A retaining ring anti-migration system for a centrifugal pump shaft includes a pair of trap sleeves that enclose a pair of retaining rings, one retaining ring around each end of the shaft enclosed by one trap sleeve, the pair of retaining rings configured to bound axial migration of the shaft both upwards and downwards. A retaining ring anti-migration system includes a retaining ring seated in a shaft groove extending circumferentially around an electric submersible pump (ESP) shaft, a trap sleeve extending around the ESP shaft adjacent to the retaining ring, the trap sleeve including a sleeve body secured to the ESP shaft such that the trap sleeve rotates with the ESP shaft, and a jacket extending axially from the sleeve body over an outer diameter of the retaining ring with a clearance between the shaft and the jacket.
- Tulsa OK, US Joshua Wayne Webster - Owasso OK, US Randy S. Roberts - Tulsa OK, US Joseph Dean Butler - Tulsa OK, US John Vanderstaay Kenner - Houston TX, US Thomas John Gottschalk - Houston TX, US
A bushing anti-rotation system and apparatus. A bushing anti-rotation system includes an impeller and diffuser stage including a rotatable shaft extending longitudinally through the stage, the diffuser having an inner diameter defining a bore, a bearing set including a bushing pressed into the inner diameter, and a rotatable sleeve inward of the bushing, and means for wedging the bushing against the inner diameter of the diffuser, wherein the means for wedging provides a mechanical lock against rotation of the bushing. The means for wedging the bushing against the diffuser includes one of a key wedged between an eccentric cavity in the diffuser and a notch in the bushing, a pin protruding from the diffuser against a flattened portion of the bushing, a square-shaped bushing secured into a square-shaped bore, a bent retaining ring having a bent end that wedges against a diffuser groove wall, or a combination thereof.
Joshua Webster, 29, from Columbia, Mo., awaiting a westbound Megabus at Union Station, said that despite Thursdays crash he believes Megabus is a safe, convenient and affordable way to travel. Webster said he paid about $40 for a round-trip ticket to Columbia from St. Louis.
Date: Aug 03, 2012
Category: U.S.
Source: Google
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