143106 ⎘
Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
Beamless mechanic-reversing long stroke pumping unit
#302Reciprocating rod pump for sandy fluids
#303Sucker rod apparatus and method
#304Adaptive pump control for positive displacement pump failure modes
#305Managing treatment of subterranean zones
#306Fluid level control mechanism
#307Cranked rod pump method
#308Electrical submersible pump with reciprocating linear motor
#309Vertical flow cage and method of use
#310Mobile, modular, electrically powered system for use in fracturing underground formations
#311Sliding valve downhole pump
#312Pump manifold support
#313Pump system
#314Linear rod pump apparatus and method
#315PUMP CONTROL DEVICE, OIL WELL WITH DEVICE AND METHOD
#316Linear rod pump apparatus and method
#317Linear rod pump operating method
#318Fluid sealing elements and related methods
#319Fluid level control mechanism
#320Double string slurry pump
#321System for monitoring linearity of down-hole pumping systems during deployment and related methods
#322Systems and methods for routing pressurized fluid
#323Method and apparatus for removing liquid from a gas producing well
#324Beam pumping unit for inclined wellhead
#325Wireless Monitoring of Pump Jack Sucker Rod Loading and Position
#326Frequency sweeping tubewave sources for liquid filled boreholes
#327SUMP PUMP SYSTEM WITH REMOTE CONTROL AND MONITORING
#328Compact cable suspended pumping system for lubricator deployment
#329Pumping device for pumping fluid
#330Deployment of downhole pump using a cable
#331SYSTEMS AND METHODS FOR ARTIFICIALLY LIFTING A PRODUCT FROM A WELL
#332Top-mounted digital-control tower pumping unit
#333System, apparatus, and method for rapid pump displacement configuration
#334Enhancing the effectiveness of energy harvesting from flowing fluid
#335Cranked rod pump apparatus and method
#336Corrugated settling cup and a multi-cup uniform flux gas anchor
#337REMOVABLE LOCKING COUPLING FOR SHAFT
#338Control device, oil well with device and method
#339Pump control device, oil well with device and method
#340Pressure-controlled liquid supply system and pump control device for use therein
#341Downhole pumps with sand snare
#342Tubular valve system and method
#343Down hole delivery system
#344Positive displacement pumping system
#345Cable suspended pumping system
#346Top seal assembly
#347J-ME modular, internally shifting, double acting, linear fluid actuator system
#348Safety clamp for walking beam compressor
#349Pump rod connector apparatus and method
#350Valve rod guide with cyclonic debris removal
#351Surface motor direct-drive sucker-rod screw pump device
#352SYSTEMS AND METHODS FOR DRIVING A SUBTERRANEAN PUMP
#353SYSTEMS AND METHODS FOR DRIVING A PUMPJACK
#354Top suction fluid end
#355Pump jack pump-off control method and pump jack control apparatus
#356Liquid rod pump and method
#357Method, system, and apparatus for operating a sucker rod pump
#358Ring rack oil pumping machine
#359Safety clamp for walking beam compressor
#360Method for estimating pump efficiency
#361Artificial lift structures
#362Water supply system with filtration and retrofit assembly
#363Cranked rod pump apparatus
#364Pump assembly
#365Plunger for a sucker rod pump
#366Drive assembly for a reciprocating pump utilizing a linear actuator
#367Low clearance downhole pump
#368Harmonic Motion Pumping Tube
#369Method and System for Optimizing Downhole Fluid Production
#370Piston pump assembly with flexible riser pipe
#371Reciprocated pump system for use in oil wells
#372Reciprocating pump drive apparatus
#373Well fluid pumping arrangement
#374Polished rod rotator
#375Drive piston and foot valve seat
#376Linear rod pump apparatus and method
#377Power variation control system for cyclic loads
#378Downhole pumps with sand snare
#379Variably operable oil recovery system
#380Method for estimating pump efficiency
#381Assembly and method of alternative pumping using hollow rods without tubing
#382Control system for centrifugal pumps
#383Reciprocating Pump With Screw Actuator
#384Drain cap stuffing box
#385Rod pump control system including parameter estimator
#386Pumping unit driven by a linear electric motor
#387Hydraulic pump jack sytem for reciprocating oil well sucker rods
#388Integrated control system for beam pump systems
#389Method and device for accurately positioning a pattern on a substrate
#390Collar locator for slick pump
#391Method for mitigating rod float in rod pumped wells
#392Hydraulic downhole oil recovery system
#393Pump jack and method of use
#394Fluid lifting system
#395Valve cage insert
#396Fluid level control system
#397Fluid level control system for progressive cavity pump
#398Apparatus and method for reducing gas lock in downhole pumps
#399Rotary drivehead for downhole apparatus
#400Pumping assembly
#401Hydraulic automatic boosting pump
#402Reciprocating slickline pump
#403Pass through valve and stab tool
#404Double-acting reciprocating downhole pump
#405Method for protecting pump components
#406Method for protecting pump components
#407Portable, surface-mounted well pump
#408Double-acting downhole hydraulic reciprocating pump system and methods of using same
#409Minimizing drivetrain damage from bad discharge valves on positive displacement pumps
#410Electric well service rig
#411Method for autonomous control of oil and gas well down-hole pump surface unit and reduction of gas interference
#412Solar powered emergency water pump system
#413Hydraulic fracturing system for driving a plunger pump with a turbine engine
#414Pump jack with downhole pump
#415Superimposed standing valve
#416Monitoring lubricant in hydraulic fracturing pump system