Matches 1 - 50 out of 74 1 2 >


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US20140196891 SELF-CONTAINED GAS IMPULSE CREATION  
A self-contained gas impulse apparatus includes a gas impulse unit for generating a plurality of gas blasts when supplied with pressurized gas. A gas supply unit is connected by a gas conduit to...
US20110139433 Hydraulically-Actuated Propellant Stimulation Downhole Tool  
A hydraulically-actuated propellant stimulation downhole tool for hydrocarbon wells. According to one embodiment of the invention, the tool comprises a first section having an internal sidewall...
US20130104596 SELF-PRIMING PUMP  
A pumping system is disclosed comprising a supply pipe, a delivery pipe, a pump capable of pumping a liquid, a first tank with a top port and a bottom port, a second tank with top port and a...
US20120318501 Systems and Methods for Placing Markers in a Formation  
A marker placement device, such as a modified coring gun, is used to place one or more markers into the formation. The marker placement device uses explosive charges to fire one or more marker...
US20130168077 Hydraulically-Actuated Propellant Stimulation Downhole Tool  
A hydraulically-actuated propellant stimulation downhole tool for hydrocarbon wells. According to one embodiment of the invention, the tool comprises a first section having an internal sidewall...
US20140238678 METHOD AND APPARATUS FOR BALLISTIC TAILORING OF PROPELLANT STRUCTURES AND OPERATION THEREOF FOR DOWNHOLE STIMULATION  
Propellant structures and stimulation tools incorporating propellant structures may comprise composite propellant structures including two or more regions of propellant having different...
US20150107819 Hydraulically-Actuated Explosive Downhole Tool  
A downhole tool comprising a first section having an internal sidewall defining at least a portion of a flowpath, and a ported outer sidewall and an explosive having at least a portion within said...
US20140069639 FRICTION REDUCTION ASSEMBLY FOR A DOWNHOLE TUBULAR, AND METHOD OF REDUCING FRICTION  
A friction reduction assembly for a downhole tubular. The friction reduction assembly includes an electrically activated friction reduction sub. The sub includes a flowbore fluidically connected...
US20080073081 DOWNHOLE PERFORATION TOOL  
A propellant assembly for subsurface fracturing and method for using the same are provided. The assembly can include a first tubular member having an annulus formed therethrough; a second tubular...
US20130220613 Transient control of wellbore pressure  
A method and apparatus is described for modifying downhole wellbore pressure at the instant that an explosive event occurs. By a significant temporary reduction in wellbore pressure, for example,...
US20130161007 PULSE DETONATION TOOL, METHOD AND SYSTEM FOR FORMATION FRACTURING  
According to one aspect of the invention, a pulse detonation tool is provided for fracturing subterranean formations. The pulse detonation tool includes a pulse detonation combustor and creates an...
US20130092378 SELECTIVELY FIRED HIGH PRESSURE HIGH TEMPERATURE BACK-OFF TOOL  
A method for unseating a threaded connection of wellbore tubing within the wellbore. The method utilizes a back-off tool which consists of a tubular metal housing, a shaped charge and HNS...
US20080302523 WIRELINE RETRIEVABLE DSG/DOWNHOLE PUMP SYSTEM FOR CYCLIC STEAM AND CONTINUOUS STEAM FLOODING OPERATIONS IN PETROLEUM RESERVOIRS  
A non-rigid carrier conveys a pump and/or the steam generator through a bore of the production tubing string to support enhanced oil recovery operations. An annular space separates the production...
US20140374084 SYSTEM FOR FRACTURING AN UNDERGROUND GEOLOGIC FORMATION  
An explosive system for fracturing an underground geologic formation adjacent to a wellbore can comprise a plurality of explosive units comprising an explosive material contained within the...
US20140027110 PLASMA SOURCE FOR GENERATING NONLINEAR, WIDE-BAND, PERIODIC, DIRECTED, ELASTIC OSCILLATIONS AND A SYSTEM AND METHOD FOR STIMULATING WELLS, DEPOSITS AND BOREHOLES USING THE PLASMA SOURCE  
A plasma source for generating nonlinear, wide-band, periodic, directed, elastic oscillations in a fluid medium. The plasma source includes a plasma emitter having two electrodes defining a gap, a...
US20140345847 Power Charge Retention and Centralizing Device for a Wireline Pressure Setting Assembly  
The power charge of a wireline pressure setting assembly includes a barrier located adjacent an open upper end of the power charge. The barrier centralizes the power charge in horizontal...
US20150090442 CHEMICAL BASED WELL KICKOFF SYSTEM FOR NATURALLY FLOWING WELLS  
A reaction apparatus for providing reactants from a surface to a wellbore to create a generated gas when the reactants undergo a reaction in situ to affect the density of a fluid in the wellbore,...
US20090283260 Methods of Initiating Intersecting Fractures Using Explosive and Cryogenic Means  
Methods and systems that utilize explosive and cryogenic means to establish fluid communication to areas away from the well bore walls are disclosed. A first fracture is induced in the...
US20120325463 Device for Intervention in a Well Comprising a Pyrotechnic System, Installation and Method Associated Therewith  
A device including a lower assembly (30) and a cable (32) for deploying the lower assembly (30) in the well (12). The lower assembly (30) includes a pyrotechnic system (72), and a firing assembly...
US20140060839 FRACTURING A WELL FORMATION  
A fracturing tool includes a container structure, and a puncher charge arranged in the container structure, where the puncher charge if detonated is configured to extend an opening through the...
US20110056679 SYSTEM AND METHOD FOR CONTROLLING ACTUATION OF DOWNHOLE TOOLS  
A technique controls the actuation of a downhole tool in a wellbore. The technique utilizes a rupture pressure membrane in a flow path of actuating fluid used to actuate the downhole tool. An...
US20150247370 EXPLOSIVE SEVER SEAL MECHANISM  
A technique facilitates severing and sealing of a tubing, such as a tubing string located in a wellbore. The tubing is combined with a mechanism constructed to sever and seal the tubing. The...
US20090084535 APPARATUS STRING FOR USE IN A WELLBORE  
An apparatus string for use in a wellbore is disclosed comprising a plurality of activation modules having first and second ends and containing devices to be activated/initiated downhole. An...
US20070256826 MULTI-ZONE FRAC-PACKING USING SCREEN-CONVEYED LINEAR CHARGES  
An assembly is disclosed which is usable with the well which comprises a base pipe having a plurality of apertures where each of the apertures contains a screen insert. The assembly also includes...
US20130341029 HIGH STRAIN RATE METHOD OF PRODUCING OPTIMIZED FRACTURE NETWORKS IN RESERVOIRS  
A system of fracturing a geological formation penetrated by a borehole. At least one borehole is drilled into or proximate the geological formation. An energetic charge is placed in the borehole....
US20130146280 MICROBIAL ENHANCED OIL RECOVERY PROCESS FOR HEAVY OIL ACCUMULATIONS  
A post cold heavy oil production with sand (“CHOPS”) microbial enhanced oil recovery method comprises selecting a well having at least one wormhole and that has completed primary CHOPS production....
US20130000908 System and Method For Fracturing Rock In Tight Reservoirs  
Methods and systems are provided for fracturing rock in a formation to enhance the production of fluids from the formation. In one exemplary method, one or more wells are drilled into a reservoir,...
US20090211746 High-energy gas fracture apparatus for through-tubing operation  
The present invention discloses a high-energy gas fracture tool for through-tubing operation. The tool includes a blast head and a fracturing bullet connecting with the blast head. An electric...
US20090223714 BUFFER FOR EXPLOSIVE DEVICE  
A buffering device for use in conjunction with a downhole tool string, wherein the tool string includes a ballistics device. The buffering device includes a mandrel attached within a tool string...
US20150013977 METHOD OF USING CARBON DIOXIDE IN RECOVERY OF FORMATION DEPOSITS  
The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO2 that is used in the recovery of formation deposits, such as fossil fuels. At...
US20120067568 METHOD OF USING CARBON DIOXIDE IN RECOVERY OF FORMATION DEPOSITS  
The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO2 that is used in the recovery of formation deposits, such as fossil fuels. At...
US20120255722 PERFORATING STRING WITH LONGITUDINAL SHOCK DE-COUPLER  
A shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler, a longitudinal axis extending between the connectors, and a...
US20090084552 PROVIDING DYNAMIC TRANSIENT PRESSURE CONDITIONS TO IMPROVE PERFORATION CHARACTERISTICS  
A transient overbalance condition is created in a wellbore interval such that a pressure of the wellbore interval is greater than a reservoir pressure in surrounding formation. Creating the...
US20110094745 DOWNHOLE PERFORATION TOOL  
A propellant assembly for subsurface fracturing and method for using the same are provided. The assembly can include a first tubular member having an annulus formed therethrough; a second tubular...
US20120247769 SELECTABLE, INTERNALLY ORIENTED AND/OR INTEGRALLY TRANSPORTABLE EXPLOSIVE ASSEMBLIES  
A system can include multiple explosive assemblies, each assembly comprising an outer housing, an explosive component rotatable relative to the housing, and a selective firing module which causes...
US20100096147 Methods and Apparatuses For Enhanced In Situ Hydrocarbon Production  
A process for recovering hydrocarbons from an in situ formation. The process includes the steps of injecting solvent though an injection well into an underground extraction chamber having a...
US20100258292 PROPELLANT FRACTURING SYSTEM FOR WELLS  
A fracturing system for wells has a propellant charge having a known surface area for combustion, and a combustion rate as a function of pressure with lower combustion rates at lower pressures and...
US20110000669 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating  
A perforating gun assembly for use in a wellbore. The perforating gun assembly includes a carrier gun body and a charge holder disposed within the carrier gun body. A plurality of shaped charges...
US20140290950 Multi-Scale, Multi-Layer Diode Grid Array Rectenna  
An antenna for receiving electromagnetic energy with multiple grid arrays includes first and second grid patterns of diodes each acting as a half-wave rectifying element when illuminated by the...
US20090250223 Ballistically Compatible Backpressure Valve  
A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in coiled tubing uphole thereof while simultaneously being compatible with a...
US20080156482 Method for the Treatment of the Obstructed Zones of the Parent Rock of Hydrocarbon-Producing Strata Adjacent to a Gas and Oil Well Drilling Zone in Order to Increase Productivity  
The invention relates to a device and method for treating the backfilled area of the productive stratum adjacent to the drilling area of oil and gas wells using high pressure pulses. The...
US20090114382 SHAPED CHARGE FOR ACIDIZING OPERATIONS  
A shaped charge includes: a charge case; an explosive disposed inside the charge case; and a liner for retaining the explosive in the charge case, wherein the liner is fabricated from a material...
US20080296026 Wellbore Collection System  
A system, apparatus and method are useful for lifting reservoir fluid in a gas-producing wellbore through the application of a differential between pressure of the gas in the wellbore's...
US20120138302 DEVICE AND METHOD FOR WELL STIMULATION  
A device for well stimulation comprising a carrying element (22) with a first delimiting element (23) and a second delimiting element (25), also at least one charge pack (30), which comprises one...
US20100051265 Firing trigger apparatus and method for downhole tools  
Methods and devices are provided for controlling detonation of explosives in a well bore for perforation or a well bore casing, which avoid or reduce unintentional or undesirable detonations while...
US20090301721 Downhole Cyclic Pressure Pulse Generator And Method For Increasing The Permeability Of Pay Reservoir  
This invention relates to the oil and gas industry and to exploration and production of water resources, in particularly, for stimulation of fluid flow to the well, e.g., for higher oil...
US20100147516 SYSTEM AND METHOD FOR MINIMIZING THE NEGATIVE ENVIROMENTAL IMPACT OF THE OILSANDS INDUSTRY  
A method and system for the use of low quality fuel and solids-rich water, like fine tailings or lime sludge, for extracting bitumen from shallow and deep underground oil sand formations. The...
US20150247368 Releasing a Downhole Tool  
Techniques for releasing a well tool string from a wireline release tool includes initiating actuation of a linear actuator of the wireline release tool, the actuator coupled to an inner mandrel...
US20060213666 Hydraulically driven gas recovery device and method of use  
A gas recovery system where a submersible compressor is in combination with a hydraulic motor. The hydraulic motor is actuated by a pressure differential between hydraulic power lines extending...
US20130105174 METHOD AND APPARATUS FOR ARTIFICIAL LIFT USING WELL FLUID ELECTROLYSIS  
An artificial lift device is useful for inducing artificial gas lift in a well bore fluid present in a horizontal well bore system using electrically conductive aqueous solution. The artificial...

Matches 1 - 50 out of 74 1 2 >