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9038711 Deep-well pump system  
A borehole pump system includes an immersion pump (20) and a riser (15) accommodated in the borehole (10). A water treatment system for cleaning pumped water is disposed in the riser.
9031674 Lift-gas optimization with choke control  
A method of optimizing production of wells using choke control includes generating, for each well, an intermediate solution to optimize the production of each well. The generating includes using...
8997848 Pressure balanced ultrasonic flowmeter  
A system, including an ultrasonic flow meter with a conduit including a conduit wall and configured to flow a fluid, an housing disposed about the conduit to define a fluid chamber about the...
8939203 Enhancing well fluid recovery  
A system usable with a well includes a waveform generator for enhancing fluid recovery from a reservoir by controlling a production pump or an injection pump downhole in the well with waveform...
8931570 Reactive in-flow control device for subterranean wellbores  
An apparatus for controlling fluid in-flow into a wellbore tubular includes a translating flow control element having one or more fluid conveying conduits; and a reactive element that actuates the...
8910710 Pumpjack production control  
A method, software, and apparatus for controlling a pump configured to pump liquid out of a well. Such control may involve determining whether a production rate of gas from the well is increasing,...
8905129 Speed activated closure assembly in a tubular and method thereof  
A tubular closure assembly responsive to speed or velocity of an object. The tubular closure assembly includes at least one sensor in operable communication with an interior of a tubular. The at...
8893797 Self-contained cut-off device  
A self-contained cut-off device for the use in oil and gas extraction comprises a body, a stop valve, a potential energy accumulator, and a hold-release arrangement. The arrangement, fixed in the...
8898046 Method to improve reservoir simulation and recovery from fractured reservoirs  
A method for modeling flow properties over a series of time increments of a reservoir in an earth formation having a plurality of fractures is disclosed. The method includes: building a...
8881798 Remote manipulation and control of subterranean tools  
A subterranean tool that is self contained for actuation can be run into a desired location on an automatic set mode controlled by a timer. If a problem develops in getting the tool to the desired...
8863837 Plunger lift control system arrangement  
A plunger lift control system for improving the output efficiency of an oil or gas well by a real-time reporting arrangement, the system comprising: a tubing string having an upper end and a lower...
8851180 Self-releasing plug for use in a subterranean well  
A flow control system for use in a subterranean well can include a flow chamber through which a fluid composition flows, and a plug which is released in response to an increase in a ratio of...
8770950 Pump device for the hydraulic actuation of a valve  
Pump device for hydraulically activating a valve in particular used for oil and gas exploration wherein such a valve may be a safety valve assigned to a riser or a tree, said pump device including...
8708663 Fugitive gas capture  
A fugitive gas capture system includes a variable volume gas storage assembly (e.g., a bag) that expands and deflates between a first position and a second position, respectively, where the...
8700371 System and method for controlling an advancing fluid front of a reservoir  
A system and method for controlling an advancing water front in a reservoir toward a wellbore is provided. The system has a production control unit. The production control unit has a reservoir...
8636071 System, method and apparatus for enhancing wellbore treatment fluid flexibility  
A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in...
8584747 Enhancing well fluid recovery  
A technique that is usable with a well includes communicating fluid downhole in the well. The technique includes enhancing fluid recovery from a reservoir by, downhole in the well, controlling the...
8560096 Method for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls  
A method to monitor a status from a secondary location of a plurality of equipment on a drilling site, while simultaneously enabling preventive maintenance for the plurality of equipment is...
8560098 System for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls  
A system to monitor a status from a secondary location of a plurality of equipment on a drilling site, while simultaneously enabling preventive maintenance is described herein. A user can view at...
8560097 Computer assisted method for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls  
A computer assisted method to monitor a status from a secondary location of a plurality of equipment on a drilling site, while simultaneously enabling preventive maintenance is described herein. A...
8544542 Method for signalling a downhole device in a well  
A method and apparatus for controlling the operation of a well which is not flowing or in which fluid is pumped or injected into the well utilising a downhole located pressure monitoring device...
8540022 Method of delivering frac fluid and additives  
A method for the controlled delivery of a fracturing fluid to a well bore comprises formulating an aqueous base fluid such that it meets or exhibits desired physical and chemical characteristics...
8522865 Automated flowback and information system  
An automated flowback system allows control and operation of the system from a remote location away from the dangers of high-pressure gases or abrasives traveling at high velocities that cause...
8430162 Continuous downhole scale monitoring and inhibition system  
A technique facilitates monitoring of conditions which are prone to cause scale precipitation around downhole equipment. The technique also enables a local, downhole reaction to the potential for...
8418770 Multi-process electronic control valve system  
A valve system has a main valve that is adjustable for output flow and pressure. The system also includes an output flow transducer, an output pressure transducer, and a fluid depth transducer. A...
8371379 Pumping station configuration method and apparatus  
In accordance with some embodiments, a pumping station controller (14) is provided for monitoring pumping station hardware such as a well level sensor (8) and pumps (10a, . . . , 10n). A user...
8322410 System, method and apparatus for enhancing wellbore treatment fluid flexibility  
An apparatus including at least four different modules, the first module being a treatment conditions module structured to interpret a specified pumping rate and a specified salt concentration....
8316935 Method of delivering frac fluid and addivities  
A method for the controlled delivery of a fracturing fluid to a well bore comprises formulating an aqueous base fluid such that it meets or exhibits desired physical and chemical characteristics...
8302684 Controlling the flow of a multiphase fluid from a well  
A method for controlling the flow of a multiphase fluid from a well extending into a subsurface formation, which well is provided at a downstream position with a valve having a variable aperture,...
8281853 Tool for use in well monitoring  
A tool for use in well monitoring is described to insert devices for well fluid level control into a wellhead. The tool also permits removal of the devices for well fluid level control from an...
8261826 Wellbore pressure control with segregated fluid columns  
A method of controlling pressure in a wellbore can include placing a barrier substance in the wellbore while a fluid is present in the wellbore, and flowing another fluid into the wellbore while...
8251151 Apparatus and methods for tubular makeup interlock  
Apparatus and methods may be used to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. Additionally, the apparatus and...
8206124 Oil-gas vapor collection, storage, and recovery system using a variable volume gas bag connected with a control switch  
An oil-gas vapor collection, storage, and recovery system ensures that no air or oxygen leakage into the production tank occurs when gauging and/or emptying a tank. The system provides a constant...
8201628 Wellbore pressure control with segregated fluid columns  
A method of controlling pressure in a wellbore can include placing a barrier substance in the wellbore while a fluid is present in the wellbore, and flowing another fluid into the wellbore while...
8162048 Method of delivering frac fluid and additives  
A method for the controlled delivery of a fracturing fluid to a well bore comprises formulating an aqueous base fluid such that it meets or exhibits desired physical and chemical characteristics...
8141640 System, method and apparatus for enhancing wellbore treatment fluid flexibility  
A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in...
8066058 System, method, and apparatus for breaking fracturing fluids  
A method for breaking a fracturing fluid includes identifying application parameter(s) including a subterranean formation temperature, and determining an acid precursor concentration in response...
8051909 Method and apparatus for positioning the proximal end of a tubular string above a spider  
Method and apparatus for handling a supported tubular string with a string elevator and a spider on a rig to prevent damaging contact between the string elevator and spider while facilitating...
8028753 System, method and apparatus for controlling the flow rate of an electrical submersible pump based on fluid density  
An electrical submersible pump that regulates pump flow rate based on sensor measurements of the fluid is disclosed. The sensor measures a property of the fluid being processed. The sensor may be...
8006766 Method and apparatus for controlling the speed of a pump in a well  
A method and apparatus for controlling a speed of a pump operating in a well. A first step involves monitoring a production flow rate of fluids produced from the well. A second step involves...
7987074 Efficient computation method for electromagnetic modeling  
Method for efficient processing of controlled source electromagnetic data, whereby Maxwell's equations are solved [107] by numerical techniques [109] such as finite difference or finite element in...
7963328 Process and apparatus for release and recovery of methane from methane hydrates  
A process and system for release and recovery of methane from subterranean methane hydrate deposits in which heated CO2 is used to displace methane from the methane hydrate deposits and a portion...
7954547 Gas flow system  
A gas flow system for removing a liquid from a well bore and allowing for gas production is provided. The gas flow system comprises a casing in the well bore for allowing flow of the liquid and...
7950464 Multi-well controller  
An improved multi-well control system (MWCS) has a centrally based multi-well controller (MWC) in communication with one or more slave controllers and one or more electronic flow measurement...
7921909 Method for breaking fracture fluids  
A method includes identifying application parameter(s) including a subterranean formation temperature, determining a breaker particle size in response to the application parameter(s), providing a...
7909088 Material sensitive downhole flow control device  
A screen section has a valve assembly to control flow through it. The valve is open and has a closure spring held compressed by a shape memory material that responds to the presence of a specific...
7891423 System and method for optimizing gravel deposition in subterranean wells  
A system for optimizing gravel deposition in a completion interval of a well. The system includes a pumping system that is operable to deliver a gravel pack slurry to the completion interval, an...
7880418 Electromechanical drive system, in particular for progressive cavity pumps for oil wells  
The following invention is an electromechanical system (1) that is to be connected to an electricity supply (7), comprising: an electric machine (2) that can operate as an independent generator...
7870900 System and method for controlling a progressing cavity well pump  
A system and method for controlling the speed of a progressing cavity liquid well pump to increase liquid production from a well while avoiding operation of the well in a pumped-off state. A...
7857048 Method for breaking fracturing fluids  
A method for breaking a fracturing fluid includes identifying application parameter(s) including a subterranean formation temperature, and determining an acid precursor concentration in response...