A downhole fluid separation apparatus can include multiple sections connected together with connectors, the connectors providing fluid communication between annuli in adjacent ones of the sections, and between inner conduits in adjacent ones of the sections. Each connector can include at least one flow passage providing communication between an inner conduit of each of the connected sections, and another flow passage providing communication between an annulus of each of the connected sections. A bypass valve can be included that opens in response to a predetermined differential pressure between an exterior of the apparatus and the inner conduits.

A pump apparatus has a downhole pump disposed in a wellbore and has a motor at the surface, and a rod string operatively moved by the motor reciprocates the downhole pump in the wellbore. Downhole data indicative of load and position of the downhole pump is generated using surface measurements and a wave equation model having an upstroke damping factor and a downstroke damping factor. Actual fluid load lines are determined from the downhole data for upstrokes and downstrokes of the downhole pump, and calculated fluid load lines for from the strokes are determined from the distribution of the load values in the downhole data. The actual fluid load lines are compared to the calculated fluid load lines to determine if the downhole card is over or under-damped. Then, at least one of the upstroke or downstroke damping factors of the wave equation model is adjusted so that new downhole data can be generated with appropriate damping.

An operating tool for an artificial lift system includes a housing having a key slot. The operating tool further includes at least one biasing member disposed in the housing. The operating tool further includes a key including a key head having a key profile, wherein the key head is remove from the slot when aligned with the key slot. The operating tool further includes a cam including a cam profile, wherein the cam is disposed in the housing and biased toward the slot by the at least one biasing member, wherein the cam profile is configured to engage the key profile to align the key head with the key slot.

A rod rotator assembly for an artificial lift system includes a housing configured to be supported by a carrier of the artificial lift system. The rod rotator assembly also includes a top cap configured to rotate relative to the housing, in which the top cap is configured to support a polish rod of the artificial lift system. In addition, the rod rotator assembly includes a load cell disposed within the housing. The load cell is configured to support the top cap, and the load cell is configured to output a sensor signal indicative of a load applied by the polish rod to the housing.

A sectional pumping apparatus for well casing includes a discharge pipe, a submersible pump, a pump housing, a swab tool, and a central axis. The discharge pipe, the submersible pump, the pump housing, and the swab tool are concentrically positioned along the central axis. The discharge pipe includes a first tubular body and a flange connector. The flange connector is radially connected around the first tubular body. The submersible pump is hermetically attached to a pump end of the first tubular body. The submersible pump and the pump end are positioned within the pump housing as the first tubular body is hermetically attached to a top end of the pump housing through the flange connector. The swab tool is hermetically attached to a bottom end of the pump housing and is in fluid communication with the discharge pipe through the submersible pump.

A sucker rod pump automated control method comprising measuring the sucker rod pump parameters, counting the sucker rod pump geometry, forming a dynamometer card of the sucker rod pump parameters. Measuring an angle of the sucker rod pump walking beam, and based on the walking beam angle value, forming a real time value of the sucker rod pump crank angle and a polished rod velocity with using geometry dependences of the sucker rod pump components. The walking beam is equipped with an angle sensor connected to a PC input and is formed to detecting position of the walking beam.

A prior art powered wrist pin knocker is improved with a new plunger that prevents wobbling. The new plunger responds to a return vacuum pressure. The improved plunger is symmetrical along a longitudinal axis. New embodiments include a new side mount valve head to reduce length, a remote air controller and a variable length cylinder for the cannon. The new valve head is a simplified valve head assembly that adapts to an end of the cannon mount or a side mount or a remote mount. Another embodiment provides a stand for a surface mount application. This embodiment can have an extended piston for loosening tail bearings down a long channel. A manual return embodiment can use a rod to manually return the plunger to the proximal end for another firing cycle.

There are several methods to propel moving force points on a pumping unit. One of the embodiments is propulsion utilizing permanent magnets. This invention can aid the several methods and provides the push start that allows initiating permanent magnet propulsion. This invention relates to an end return device for assisting positioning drives to actuate the continuous movement by mechanical means of moving force points to a desired advantageous position at a desired advantageous moment to achieve reduced net torque when lifting or lowering an unbalanced load with a beam with a fulcrum and connected to a load and an effort. In one embodiment, a walking beam well pumping unit, the lifting and lowering of the well load can be caused by the reciprocating motion of a beam tipping on a fulcrum and with moving effort force point, moving crank shaft force point, and moving beam weight force point.

A method of separating gas from a fluid mixture in a production stream of a well where the method includes using an outer tube and an inner tube positioned concentrically with the outer tube to separate gas and liquid from a mixture. The production stream is directed through the outer tube and into a space between a well casing of the well and the outer tube where gas in the production stream can separate from fluid in the production stream. The separated fluid is then directed through the inner tube to a pump.

The present disclosure relates to a method for coating a coiled sucker rod, the method comprising: (a) transferring the coiled sucker rod from a first reel to a thermal spray metal gun system with a conveyance system; and (b) applying a thermal spray metal coating on the coiled sucker rod with a thermal spray metal gun system to form a thermal spray metal coated coiled sucker rod.