Matches 1 - 50 out of 188 1 2 3 4 >


Match Document Document Title
8136586 Safety clamp for walking beam compressor  
Various methods and devices are provided for securing a walking beam compressor to a walking beam. In general, the walking beam compressor is a gas compressor unit that can be disposed around a...
8132618 Systems for retarding rod string backspin  
A system comprises a progressive cavity pump including a helical rotor disposed within a mating stator. In addition, the system comprises a rod string having a longitudinal axis, a first end, and a...
8118089 Down hole delivery system  
An improved delivery system for pumping fluid from a pay zone to the surface of a well consisting of a pump situated near the pay zone of the well, a drive head at the surface of the well and a rod...
8066496 Reciprocated pump system for use in oil wells  
A reciprocated pump positioned at the lower end of a string of tubing in a bore hole that provides a passageway for moving formation fluid to the earth's surface, including a pump barrel supported...
8056635 Split stream oilfield pumping systems  
A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well...
8056620 Low cost rigless intervention and production system  
A system which may be used to replace workover rigs and metallic pipes for the production of hydrocarbon from wellbores uses a non-metallic, substantially continuous, flexible tube comprising a...
8047821 Ring rack oil pumping machine  
The Ring Rack Oil Pumping Machine is comprised of: a base, a frame mounted on the base, a roller mounted at the frame top, a sprocket case connects to the middle of the frame; a input shaft having...
8016027 Apparatus for driving rotating down hole pumps  
An apparatus for rotating down hole pumps has a right angle gear box driving a hollow output shaft. The output shaft is oriented to the vertical and supports and rotates the drive string of a down...
7971648 Flow control system utilizing an isolation device positioned uphole of a liquid removal device  
A flow control system includes a pump positioned in a well uphole of a producing formation to remove liquid from the well. An isolation device is positioned uphole of the pump such that the pump is...
7971650 Electric submersible pumps  
A method of pumping wellbore fluid, comprising the steps of: installing an electric submersible pump in a wellbore; and operating the pump at more than 4,500 rpm to pump the wellbore fluid. Pumping...
7934562 Hybrid control system and method  
A hybrid process control system including electrical transmission of power to a sub-sea hydraulic power unit, which in turn provides hydraulic power for control of hydraulic actuators. A...
7900707 Apparatus and method for selectively controlling fluid downhole in conjunction with a progressive cavity pump (PCP)  
An apparatus and a method for selectively controlling fluid flow. The apparatus includes a body member having a throughbore formed therein. The apparatus also includes at least one bypass port...
7874369 Progressive cavity pump (PCP) drive head stuffing box with split seal  
The present invention relates to a split seal for a progressive cavity pump (PCP) drive head stuffing box. In one embodiment, a mechanical seal assembly for a pump is provided. The mechanical seal...
7866381 Arrangement used in oil field wells for lifting hydrocarbons  
The present invention relates to an arrangement for the lifting of hydrocarbons in oil field wells, comprising a lifting assembly formed by a fluid collecting hose and a fluid suction tube being...
7845413 Method of pumping an oilfield fluid and split stream oilfield pumping systems  
A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well...
7832468 System and method for controlling solids in a down-hole fluid pumping system  
A system for controlling solids within a wellbore of a well includes a pump positioned within a substantially horizontal portion of the wellbore. A first tubing string is operatively connected...
7810572 Method for delivering a multi phase mixture and pump installation  
The object of the invention is to improve delivery of the multi-phase mixture, in particular hydrocarbons from a well, and to limit the free gas volume. According to the invention, this object is...
7806665 Auxiliary braking device for wellhead having progressive cavity pump  
An auxiliary braking device can be used for wellhead applications having a progressive cavity pump. A housing of the device independently mounts on the pump's existing drive using a mounting...
7784534 Sealed drive for a rotating sucker rod  
A drive assembly for powering a rotating rod string (14) passing through a surface wellhead (18) includes a torque conveying housing (32) containing a radially outer member supporting a plurality...
7775776 Method and apparatus to pump liquids from a well  
A single conduit lift pump is disclosed that only requires a single fluid conduit for both the driving fluid and the pumping action of the pump in a well bore. Fluid pressure communicated to the...
7766079 Pumping installation for a gas producing well  
A pumping installation for a gas producing well. A gas compressor is positioned on surface which receives gas. The compressor is powered by hydraulic fluid. An engine is positioned a sufficient...
7762340 Installation for enhanced oil recovery using water soluble polymers, method for implementing same  
Installation for enhanced oil recovery comprising in succession: a polymer storage hopper, a grinding device, a dissolution/maturation tank for the dispersed polymer, and a pump for transferring...
7762321 Hydraulic oil well pumping apparatus  
A hydraulic oil well pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is...
7748449 Tubingless electrical submersible pump installation  
A method of producing a well utilizes a submersible pump run on a line, such as braided wire rope, that includes power conductors. The operator sets a packer in the casing, the packer having a...
7730939 Safety clamp for walking beam compressor  
Various methods and devices are provided for securing a walking beam compressor to a walking beam. In general, the walking beam compressor is a gas compressor unit that can be disposed around a...
7699097 Mover stabilizing and stator cooling arrangement of a 3-phase linear motor of a submersible oil pump  
A mover stabilizing and stator cooling arrangement includes an upper sleeve surrounding the mover of the linear motor, a lower sleeve, a thermoconducting sleeve surrounding the stator and axially...
7669650 Stuffing box for rotating rod  
A stuffing box for a rotating rod includes a stationary housing and a tubular rotating inner housing. The stationary outer housing has an upper end, a lower end, an exterior surface and an inner...
7647962 Assembly and method of alternative pumping using hollow rods without tubing  
Assembly and method for extracting fluids, preferably crude oil, from a drilled well within a geological formation by means of reciprocating pumping with hollow sucker rods. The assembly includes:...
7635022 Pumping system  
A pumping system is described comprising a bracket being vertically fixed onto the connection end of a pump basement and also connected to a wellhead in order to support multiple fixed pulleys...
7628209 Tubing driven progressing cavity pump and method of pumping well fluid from a well  
A progressing cavity well pump system has a stator secured to a string of tubing. A drive head at the surface rotates the tubing and the stator. The pump rotor is held against rotation by an anchor...
7607903 Stator tube removal and installation device  
An apparatus for removing a stator tube from a position about a rotor of a progressing cavity pump is provided. The apparatus includes an actuator assembly having a base and a piston which is...
7584784 Reciprocating pump drive apparatus  
A reciprocating drive apparatus for connection to a top end of a rod swing to drive a downhole pump located in a well includes a plate adapted to be fastened to a top end of a well head assembly of...
7584783 Surface activated downhole spark-gap tool  
A spark-gap tool includes a plurality of electrodes, a mandrel, transductive element(s), and a force transmission configuration. Upon relative movement between components a physical distortion of...
7562701 Eccentric wellhead hydraulic drive unit  
A wellhead hydraulic drive unit to operate various styles of downhole pumps, including a hydraulic cylinder having a piston positioned therein for reciprocation within the cylinder; hydraulic fluid...
7533730 Variable and slow speed pumping unit  
A pumping unit is provided with a hydraulic drive unit. The drive includes a hydraulic motor attached to a driven sheave that, through reduction gears, drives a drive shaft and crank arm that...
7530800 Rotary drivehead for downhole apparatus  
A drivehead for driving a drive string of a rotary pump or motor includes a bearing housing including lubricating fluid therein, a driveshaft extending through the bearing housing and connectable...
7516796 Piston pump assembly with flexible riser pipe  
A pump for pumping liquid from a well having a continuous flexible riser pipe that does not have a coil memory and a flexible actuating rod disposed within the flexible riser pipe. A piston valve...
7481281 Systems and methods for the drilling and completion of boreholes using a continuously variable transmission to control one or more system components  
Systems and methods for drilling a borehole are provided. One system includes a continuously variable transmission. An input shaft of the continuously variable transmission is coupled to a power...
7448443 Variably operable oil recovery system  
A variably operable oil recovery system having a variable motor and reducer in mechanical communication with one another where each shares a common axis of rotation. The reducer receives the drive...
7419007 Retrievable downhole pumping system  
A pumping system 10 is provided for pumping fluid from a downhole well to the surface through a production tubing string well. A rotatable drive rod 18 extends from the surface to power the...
7373971 Pump jack and method of use  
An electromagnetic ram for use in artificially lifting fluid from a well and in particular an oil well. The disclosure also teaches a method and system employing the ram. The use obviates existing...
7343967 Well fluid homogenization device  
A well fluid homogenization device for use in a pumping system configured to recover fluids from a well includes a central hub and a plurality of posts extending from the central hub. The well...
7337851 Rotating stuffing box with split standpipe  
A system comprising a top mounted rotating stuffing box is provided for use with downhole pump (e.g., Progressing Cavity Pump) applications. The system also includes a split standpipe configuration...
7316268 Method for conditioning wellbore fluids and sucker rod therefore  
Invention refers to a method for conditioning wellbore fluids and to a sucker rod to accomplish the method used in the field of petroleum production. The method the invention refers to involves...
7306031 Tubing string rotator and method  
A tubing string rotator for rotating a tubing string in a well having a downhole pump. The tubing string rotator includes a housing having a first portion and a second portion. At least the second...
7290608 Method and system for pumping in an oil well  
An effluent pumping method and system include a pump having a rotor and a stator, the rotor being fastened by a first end to a tubular driving string; a device for driving the string into rotation;...
7275590 Submersible pump  
A submersible pump for attachment to the lower end of a well pipe discharge tube for insertion in liquid includes a stationary collecting tube for collecting the liquid and an upward and downward...
7258164 Pumping system for oil wells  
A pumping system (13) for oil wells (1) comprises a pump (20) immersed at the bottom of the well (4) and a flow-meter (32) associated with the pump (20), the immersed pump (20) being supplied by an...
7255175 Fluid recovery system and method  
A fluid recovery system 10 for collecting formation fluid at the surface of a well 12 includes a downhole jet pump 20 and a surface diaphragm pump 40 having a plurality of diaphragms 42. The jet...
7188670 Plunger lift system  
An intermittent lift plunger includes at least one seal mandrel, a bottom sub and an upper valve assembly. The valve assembly is closed by a well bottom stop which inserts into the lift plunger and...
Matches 1 - 50 out of 188 1 2 3 4 >