ECCENTRIC SCREW PUMP

ROTOR STATOR PUMP

PROGRESSIVE CAVITY PUMP ROTOR

PCP SYSTEM WITH A HORIZONTALLY ORIENTED PMM

PROGRESSIVE CAVITY PUMP WITH PUMP RADIALLY WITHIN ELECTRIC MOTOR

Particle adjusting drilling assembly and method

CLAMPING SYSTEM FOR A PROGRESSING CAVITY PUMP

REDUCTION OF EQUIVALENT CIRCULATING DENSITY IN WELL OPERATIONS

Mud motor rotor with core and shell

Rotor unit and eccentric screw pump

Cartridge system and eccentric screw pump

Fault rectification method for a progressive cavity pump of a conveyor device for conveying viscous building materials

Surface driven downhole pump system

Coring apparatus for rubber stator

Moineau pump-type quantitative liquid-discharging apparatus

Eccentric-screw pump with concentricity sensor

PORTABLE FLUID PUMP

Mud motor rotor with core and shell

Pump housing with dual-purpose inlet fitting

GUIDED LASER INSPECTION AND ANALYSIS SYSTEM AND METHOD FOR A PROGRESSIVE CAVITY PUMP OR MOTOR ROTOR

Coring apparatus for rubber stator

Dismounting device for progressive cavity pumps

Elastomeric stator with modified fiber orientation

Progressive cavity pump having improved stator dry-running protection

Mud motor stators and pumps and method of making

Stator assembly for a progressive cavity pump or a progressive cavity motor as well as method for manufacturing and repairing the same

Borehole Pump, Installation Procedure And Replacement Procedure

Motor drive system and method

Eccentric screw compressor with exposable rotor connector

Motor drive system and method

Progressing cavity pump and methods of operation

Stator and rotor profile for improved power section performance and reliability

Eccentric screw pump

Coring apparatus for rubber stator

Apparatus and method for injecting a fluid formulation into a melted polymeric material

Surface-driven pumping system and method for recovering a fluid from a subsurface hydrocarbon deposit

Methods and Apparatus for an Automated Fluid Pumping System

STIFFNESS TUNING AND DYNAMIC FORCE BALANCING ROTORS OF DOWNHOLE DRILLING MOTORS

Pump housing for an eccentric screw pump and an eccentric screw pump equipped therewith

Method of forming stators for downhole motors

Pump isolation apparatus and method for use in tubing string pressure testing

Lobed rotor with circular section for fluid-driving apparatus

PDM performance simulation and testing

Stator injection molding centralization

Apparatus and method for improving an electric submersible pump system

Progressive cavity pump (PCP) monitoring system and method

Progressive cavity pump and method for operating same in boreholes

Diverter valve for progressing cavity pump

Method to improve downhole motor durability

Submersible progressive cavity pump

Mud motor stators and pumps and method of making

Method of coupling stator/rotor laminates

Eccentric screw pump with split stator housing

Stator for an eccentric screw pump, an eccentric screw pump and a method for producing a stator

Installation for pumping hydrocarbons, module and method

Positive displacement motor with radially constrained rotor catch

Flexible joint connection

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

UNIAXIAL ECCENTRIC SCREW PUMP

Polymeric materials

Coring apparatus for rubber stator

ADJUSTABLE INTERFERENCE PROGRESSIVE CAVITY PUMP/MOTOR FOR PREDICTIVE WEAR

Rotor bearing for progressing cavity downhole drilling motor

Batching/delivering system comprising at least one remotely actuated volumetric batching pump

Flow restrictor for a mud motor

Method and apparatus to manufacture a progressive cavity motor or pump

Split shell shaft coupling for submersible pump assemblies

Control method and control system for screw pump

Progressive cavity pump and method for operating same in boreholes

Uniaxial eccentric screw pump

Artificial lifting system with a progressive cavity pump driven by a progressive cavity motor for hydrocarbon extraction

GROUND DRIVE APPARATUS FOR PROGRESSIVE CAVITY PUMPS

Variable diameter stator and rotor for progressing cavity motor

Progressive cavity pump/motor stator including framework elements and grooves defining chambers

System and method for control and optimization of PCP pumped well operating parameters

System and method for operating a pump

Tandem thrust bearing with resilient bearing support

Electrochemical machining method for rotors or stators for moineau pumps

Eccentric screw pump

OPERATION OF LANDFILL SITES

Wellbore desanding system

Hydraulic tools including inserts and related methods

Progressive cavity pump with uncoupled natural frequency

Borehole submersible pump assembly with a drive and a bearing arrangement disposed at opposite ends of a screw pump

Downhole motor stator and method of manufacture

Helical rotor of a progressing cavity pump

Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same

Positive displacement motor with radially constrained rotor catch

Progressive cavity pump with free pump rotor

Long reach spindle drive systems and method

Progressive Cavity Pump/Motor Drive Mechanism

Universal joint with cooling system

Surface motor direct-drive sucker-rod screw pump device

Flexible joint connection

Electroformed stator tube for a progressing cavity apparatus

Apparatus and method for adjusting power units of downhole motors

Method of determining pump flow in rotary positive displacement pumps

Immersion pump and method for assembling an immersion pump

Lightweight and flexible rotors for positive displacement devices

Asymmetric lobes for motors and pumps

Submersible progressive cavity pump driver

Production tubing and pump driver control lines combination for suspending progressive cavity pump and pump driver in a production assembly

Wiper assembly for a pump

Coaxial progressive cavity pump

Stator seal structure in uniaxial screw pump

Downhole motors and pumps with asymmetric lobes

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Methods of coating wellbore tools and components having such coatings

Drilling motors with elastically deformable lobes

Tandem progressive cavity pumps

System and method for providing a continuous flow of catalyst into a polyolefin reactor

Downhole backspin retarder for progressive cavity pump

Pressure compensation system for an oil-sealed mud motor bearing assembly

Downhole motor or pump components, method of fabrication the same, and downhole motors incorporating the same

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Method of Making Progressing Cavity Pumping Systems

Uniaxial eccentric screw pump

Helical gear pump

Method and system for continuously pumping a solid material and method and system for hydrogen formation

Pumping System And A Method For Pumping Fluids

Progressive cavity pump having an inner rotor, an outer rotor, and transition end piece

Progressive cavity pump including inner and outer rotors and a wheel gear maintaining an interrelated speed ratio

Stators for downwhole motors, methods for fabricating the same, and downhole motors incorporating the same

Eccentric screw pump for mortar

DRILL MOTOR ASSEBLY

Modular dye meter and method of preparing compounds

Progressing cavity pump/motor

Moineau pump

Progressing cavity pump with several pump sections

Long reach spindle drive systems and method

Surface motor direct-drive sucker-rod screw pump device

Gas restrictor for pump

Uniaxial Eccentric Screw Pump

Electroformed stator tube for a progressing cavity apparatus

APPARATUS AND METHOD FOR HIGH TEMPERATURE DRILLING OPERATIONS

Non-contact seal for positive displacement capture device

Eccentric screw pump

Pump intake for electrical submersible pump

Nano particle reinforced polymer element for stator and rotor assembly

BOTTOM HOLE HOLLOW CORE ELECTRIC SUBMERSIBLE PUMPING SYSTEM

PROGRESSING CAVITY PUMP WITH HEAT MANAGEMENT SYSTEM

Combined Seal Head and Pump Intake for Electrical Submersible Pump

Electromechanical drive system, in particular for progressive cavity pumps for oil wells

Active intake pressure control of downhole pump assemblies

Feed Screw For Eccentric Screw Pump

Stator clamping device for eccentric screw pump

Compact eccentric screw pump

Axial flow positive displacement worm pump

Eccentric screw pump equipped with erosion-resistant rotor

PROCESS FOR HARDFACING A PROGRESSING CAVITY PUMP/MOTOR ROTOR

Downhole motor locking assembly and method

Stuffing box for progressing cavity pump drive