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| Number | Title | Issue Date |
| 8167037 | Method and device for feeding liquefied carbon-dioxide gas into an aquifer deep underground A method and system for feeding liquefied carbon-dioxide gas into the ground, by which liquefied carbon-dioxide gas can be efficiently permeated and diffused in a deep aquifer. The disclosed method for feeding liquefied carbon-dioxide gas into the ground includes th... | 05/01/2012 |
| 8151876 | Well stimulation Disclosed are processes for improving recovery of product from a subterranean carbonaceous deposit wherein there has been a reduction in product recovery from a production well, the processes comprising treating the deposit with a liquid that contains at least one o... | 04/10/2012 |
| 8113278 | System and method for enhanced oil recovery using an in-situ seismic energy generator Disclosed is a system and method for enhanced oil recovery using at least one in-situ seismic energy generator for generating seismic acoustic waves. More particularly the system and method employ a downhole electro-hydraulic seismic pressure wave source to enhance ... | 02/14/2012 |
| 8082989 | Method for impulse stimulation of oil and gas well production A method for improving liquid injection into a rock formation. The method includes the steps of introducing a gas impulse device into a wellbore in the formation and pumping a pressurized liquid into the wellbore. The method also includes firing the gas impulse devi... | 12/27/2011 |
| 8047282 | Methods of sonically activating cement compositions The present disclosure is directed to a system and method for sonically activating cement slurries. In some implementations, a method of treating a subterranean formation includes positioning a settable composition including a capsule in a wellbore. The capsule is u... | 11/01/2011 |
| 7909094 | Oscillating fluid flow in a wellbore A system for oscillating compressible working fluid in a wellbore defined in a subterranean formation includes a fluid supply and a fluid oscillator device. The fluid supply communicates compressible working fluid into a conduit disposed within the wellbore. The flu... | 03/22/2011 |
| 7836948 | Flow hydraulic amplification for a pulsing, fracturing, and drilling (PFD) device A device and method and/or system for generating pulses to improve drilling rates, the ability to drill straighter and farther by increasing fracturing or injection efficiencies in a geological formation that may contain desirable hydrocarbons. This system can be us... | 11/23/2010 |
| 7789141 | Oil recovery enhancement method The current invention provides an improved method of increasing well yield and enhancing oil production. The method comprises the steps of lowering a vibroacoustic downhole emitter into a well down to a production layer depth and performing acoustic impact on the fo... | 09/07/2010 |
| 7770638 | Method for completion, maintenance and stimulation of oil and gas wells A method for inducing motion in solid particulates in a solid/liquid mixture located in proximity to the periphery of a wellbore or in the formation zone adjacent to a wellbore in an oil or gas formation. The method includes introducing a gas impulse device into the... | 08/10/2010 |
| 7762326 | System and method for reducing resistance to flow in liquid reservoir extraction A system and method for reducing resistance to flow in liquid reservoir extraction is provided. A working seal is used to seal an annulus between a well casing and a tubing to create a forcible volume between the working seal and a liquid filled column at the bottom... | 07/27/2010 |
| 7665517 | Methods of cleaning sand control screens and gravel packs Methods for remediating a subterranean environment. Methods comprising introducing a cleanup fluid through a well bore and into a portion of a subterranean formation penetrated by the well bore, applying a pressure pulse to the cleanup fluid, and introducing a conso... | 02/23/2010 |
| 7644759 | Enhancement of flow rates through porous media For extracting a liquid (such as oil) from a porous medium, the liquid is subjected to pulses that propagate through the liquid flowing through the pores of the medium. The pulses cause momentary surges in the velocity of the liquid, which keeps the pores open. The ... | 01/12/2010 |
| 7628202 | Enhanced oil recovery using multiple sonic sources A method and apparatus control a plurality of sonic sources to generate sound waves within at least one opening of an item. The “item” can comprise almost anything that has a percolation path (a path where solid particles are to be separated from liquid particle... | 12/08/2009 |
| 7413010 | Remediation of subterranean formations using vibrational waves and consolidating agents Methods of remediating a subterranean formation comprising directing vibrational waves at a portion of the subterranean formation containing fines; allowing the vibrational waves to displace at least a portion of the fines; and introducing a consolidating agent into... | 08/19/2008 |
| 7405998 | Method and apparatus for generating fluid pressure pulses Apparatuses and methods for generating fluid pressure pulses are disclosed. An example apparatus may include a chamber that can collect fluid and an upstream ported disc coupled to a downstream end of the chamber. The upstream ported disc may rotate about a central ... | 07/29/2008 |
| 7367405 | Electric pressure actuating tool and method Disclosed herein is a downhole tool actuation arrangement. The arrangement includes a housing having a chamber, at least one piston in operable communication with the chamber and at least one electrode exposed to the chamber. The electrodes are receptive to a power ... | 05/06/2008 |
| 7367392 | Wellbore apparatus with sliding shields Wellbore apparatus including an elongated tubular adapted for disposal within the wellbore. The tubular having an elongated recess formed on its exterior surface along the longitudinal axis. The recess is adapted to accept and house a component therein. A shield dis... | 05/06/2008 |
| 7360596 | Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other production wells The invention relates to a method for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers (W) in the underground extraction areas (F) of wells and other production drill holes (11) wherein liquid is continuou... | 04/22/2008 |
| 7360595 | Method and system for underground treatment of materials A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a subsurface treatment zone and at least one of the injection pattern and ... | 04/22/2008 |
| 7350567 | Increasing media permeability with acoustic vibrations A coalbed methane production method comprises acoustic radiators strategically placed within exhaust boreholes that sonically vibrate the immediate wall areas. The gas volume output that can be realized by an exhaust well is mainly determined by the penetrability of... | 04/01/2008 |
| 7350571 | Methods of preparing and using coated particulates The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par... | 04/01/2008 |
| 7347284 | Apparatus and method for hard rock sidewall coring of a borehole The present invention is directed to an apparatus and method for coring a borehole in a hard rock sidewall of a well bore in a subterranean formation for testing purposes. The apparatus includes a drive motor for operation down hole, a flexible drive shaft coupled t... | 03/25/2008 |
| 7340384 | Process for determining the variation in the relative permeability of at least one fluid in a reservoir A method for determining for a reservoir (1) containing fluids (W, O), the variation in the relative permeability (krO, krW) of at least one of the fluids, as a function of the saturation of at least one of the fluids (W, O),) is provided. According to this m... | 03/04/2008 |
| 7334635 | Methods for fracturing subterranean wells A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates... | 02/26/2008 |
| 7334636 | Methods of creating high-porosity propped fractures using reticulated foam One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ... | 02/26/2008 |
| 7322415 | Subterranean electro-thermal heating system and method A subterranean electro-thermal heating system including one or more heater cable sections extending through one or more heat target regions of a subterranean environment and one or more cold lead sections coupled to the heater cable section(s) and extending through ... | 01/29/2008 |
| 7318473 | Methods relating to maintaining the structural integrity of deviated well bores Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic... | 01/15/2008 |
| 7318474 | Methods and compositions for controlling formation fines and reducing proppant flow-back Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ... | 01/15/2008 |
| 7318489 | Hydraulic motor arrangement and method of operating a hydraulic motor A hydraulic motor for use in subterranean drilling operations in which a drive fluid within a first reservoir is forced through the motor by a high pressure working fluid, such as drilling mud, the drive fluid entering a second reservoir upon exiting the motor. Upon... | 01/15/2008 |
| 7302849 | Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces The invention relates to monitoring of fluid-filled domains in various media including, for example, subterranean formations, construction elements, bones. Claimed are a method for determining characteristic sizes of a fluid-filled crack in a medium and a system for... | 12/04/2007 |
| 7299875 | Methods for controlling particulate migration Many methods are provided including methods of stabilizing a portion of a subterranean formation or reducing the production of particulates from a portion of a subterranean formation comprising contacting the portion of the subterranean formation with a pre-flush fl... | 11/27/2007 |
| 7284636 | Accelerated weight drop for use as a seismic energy source and a method of operation thereof The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated wei... | 10/23/2007 |
| 7281581 | Methods of hydraulic fracturing and of propping fractures in subterranean formations A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the... | 10/16/2007 |
| 7278490 | Blast joint swivel for wellhead isolation tool and method of using same A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in tur... | 10/09/2007 |
| 7273099 | Methods of stimulating a subterranean formation comprising multiple production intervals A method of stimulating a production interval adjacent a well bore having a casing disposed therein, that comprises introducing a carrier fluid comprising first particulates into the well bore, packing the first particulates into a plurality of perforations in the c... | 09/25/2007 |
| 7274996 | Method and system for monitoring fluid flow A method and system for monitoring fluid flow, such as fluid flow through pipelines or similar conduits for delivering natural gas, crude oil, and other similar liquid or gas energy commodities, relies on the measurement of acoustic waves generated by the fluid, thu... | 09/25/2007 |
| 7270182 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 09/18/2007 |
| 7268100 | Shale inhibition additive for oil/gas down hole fluids and methods for making and using same An under-balanced drilling fluid additive is disclosed which reduces reactive shale and/or clay swelling during under-balanced drilling operations, where the additive includes an effective amount of a choline salt. A method for under-balanced drilling is also disclo... | 09/11/2007 |
| 7267171 | Methods and compositions for stabilizing the surface of a subterranean formation Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component compris... | 09/11/2007 |
| 7264052 | Methods and compositions for consolidating proppant in fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In certain embodiments, the hardenable resin compositions may be especially suited for consolidating proppant in subterranean fractures having temperatures above abo... | 09/04/2007 |
