Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.

Abstract: A method of probabilistically estimating a velocity of a plunger of a beam pump may comprise continuously monitoring well acoustics using a plurality of passive acoustic sensors attached to external structures of the beam pump; digitizing outputs of the plurality of passive acoustic sensors and sending the digitized outputs to a computing device for storage and processing; and using the digitized outputs of the plurality of passive acoustic sensors, estimating a probability of the velocity of the plunger using a hidden Markov model (HMM) to represent a probability of a position and the probability of the velocity of the plunger, the HMM comprising a state space model and an observational model.

Abstract: A computer-implemented method may comprise attaching a plurality of wireless sensors to a pump jack; receiving time-stamped data from at least some of the plurality of wireless sensors attached to the pump jack, at least one of the plurality of wireless sensors comprising an accelerometer and a gyroscope and being attached to a crank arm of the pump jack; synchronizing the received time-stamped data; from the synchronized time-stamped data, calculating and generating information related to: a downhole load versus polished rod position of the pump jack; a relative balance of a counterweight of the pump jack relative to a horse head of the pump jack; deviations from a nominal acceleration profile of a bridle of the pump jack; and an angle of inclination of the bridle of the pump jack; and selectively generating, on a computing device, visualizations of the generated information.

Abstract: A computer-implemented method may comprise attaching a plurality of wireless sensors to a pump jack; receiving time-stamped data from at least some of the plurality of wireless sensors attached to the pump jack, at least one of the plurality of wireless sensors comprising an accelerometer and a gyroscope and being attached to a crank arm of the pump jack; synchronizing the received time-stamped data; from the synchronized time-stamped data, calculating and generating information related to: a downhole load versus polished rod position of the pump jack; a relative balance of a counterweight of the pump jack relative to a horse head of the pump jack; deviations from a nominal acceleration profile of a bridle of the pump jack; and an angle of inclination of the bridle of the pump jack; and selectively generating, on a computing device, visualizations of the generated information.

Abstract: A computer server coupled to a computer network comprises a network adaptor configured to communicate at least with social media information sources and other data sources over a computer network; a processor coupled to the network adaptor and memory coupled to the processor. The memory stores a program configured to cause the processor to receive social interaction information from at least one remote computing device over the computer network; rank the received social interaction information according to at least one metric that is selectable by a user of a computing device coupled to the computer server over the computer network; and send the ranked social interaction information to the computing device to be rendered on a display thereof such that higher-ranked social interaction information is displayed closer to a center of concentric shapes rendered on the display of the computing device than is comparatively lower ranked social interaction information.

Abstract: An oven door assembly for hinge mounting on an oven frame, the door having a glass-sealed window aperture and a shutter manually positionable between an open position permitting view of the oven contents through the window and a closed position preventing thermal radiation from the oven through the window and view of the oven contents. Shutter position indicator means governed by the movement of the shutter to and from its closed position cooperates with sensor means on the oven frame to provide an interlock for the oven heating system such that the heating system is prevented from operating when either the shutter or door is not fully closed. The shutter is disposed within an air wash zone formed by spaced door panels in a manner which permits both sides of the shutter to be cooled by convective air flow to thereby minimize heat transfer to the outer panel of the door.

Abstract: A panel constructed cabinet for refrigerators, freezers or the like is disclosed along with a method of manufacture and an apparatus for manufacture. The cabinet includes an inner liner formed of panels of thermoplastic material having mating edge connections. The connections are formed by heating the plastic sheet along spaced and parallel lines adjacent to the edges thereof, to provide fold lines permitting the formation of channels proportioned to receive mating tongues from adjacent panels. Along some edges of the thermoplastic panels the channels are formed to extend laterally, with respect to the panel, and along other edges the channels are formed substantially parallel to the panels. The outer casing includes a combination of metallic panels along the sides and foil laminated panels along the top, back and bottom of the cabinet. Foamed insulation rigidifies the panels and provides the necessary insulation therebetween.