序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
241 Method and device for producing wave action on a production stratum US10513238 2003-04-18 US20060249286A1 2006-11-09 Sergei Serdjukov; Vladimir Novikov
A process for producing a wave action on a productive stratum consists in that a vibro-seismic action is performed on the bottom zone of a well by a hydraulic shock onto it, said shock being produced by dropping a column of well fluid (2) to the bottom (9) of a chamber (10) which is fixed in the lower part (3) of a tubing string (4) and interacts with the bottom of a well (1), wherein, during dropping, the well fluid (2) is accelerated along the length of the chamber (10). A device for producing a wave action on a productive stratum comprises a pumping unit, a tubing string (4) with an expanded perforated part (3), a chamber (10) which is fixed on the lower end of the tubing string (4), a plunger (7) arranged in the chamber (10) so that it can move axially and exit therefrom when it is in the top position thereof, linked by a rod (8) with the pumping unit, a channel (11) being provided in the plunger (7), that exits at the end surfaces of said plunger and is provided with an inverted valve which enables the fluid to flow from the chamber (10) to the expanded perforated part (3) of the tubing string (4).
242 Isolation of subterranean zones US10619285 2003-07-14 US07121352B2 2006-10-17 Robert Lance Cook; Kevin Karl Waddell; Lev Ring; David Paul Brisco; Vikram Rao
One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and perforated tubulars.
243 Increasing media permeability with acoustic vibrations US11255109 2005-10-21 US20060108111A1 2006-05-25 Dimitri Kas'yanov
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 the inside faces of the borehole. Such inside faces behave like a filter matrix, and the important areas involved in restricting the gas flow the most are not more than a few diameters away from the exhaust well in the collector zone. Therefore, the more permeable that such immediate area around the exhaust borehole can be made, the higher will be the volume of gas produced. Strong sonic vibrations from the acoustic radiators positioned in a drillstring shake open spaces in the media for the gas to flow out and be collected. The media experiences a type of elastic collapse under the differential pressures that are exerted the strongest near the borehole opening.
244 Surface pulse system for injection wells US10601407 2003-06-23 US07025134B2 2006-04-11 Audis C. Byrd; David W. Ritter; Ronald G. Dusterhoft
The present invention relates to petroleum recovery operations, and more particularly, to the use of pulse technology to enhance the effectiveness of waterflooding operations. The systems of the present invention generally comprise an injection means for continually injecting a fluid into the subterranean formation, and a pressure pulsing means for periodically applying a pressure pulse having a given amplitude and frequency to the fluid while the fluid is being injected into the subterranean formation.
245 Device for performing hydrodynamic action on wellbore walls US10399346 2001-10-16 US07017681B2 2006-03-28 Vladimir Ivanovich Ivannikov; Ivan Vladimirovich Ivannikov
The proposed invention relates to wellbore technologies and is intended to produce action on productive rock. Device for hydrodynamic action on wall of a well comprising a casing jointed with the pipe conduit directly or via a roller support and inside of which the mechanism for cavitating of flow of a liquid, mechanism for directing and splitting of the flow and mechanism for interrupting of the discharge jets are sequentially placed. The mechanism for cavitating of flow of a liquid is made in form of an auto-oscillating system. And specifically it can be made in a form of a ball with its diameter ratio to inner diameter of the casing of 0.9–0.98 and a limiter of axial motion; or a ball with its diameter ratio to inner diameter of the casing less than 0.9 and a limiter of axial motion in form of a coil spring lower end of which is rigidly connected to the casing and the upper end of which has a seat for the ball; or a cone the nose of which is directed counter flow, which cone is placed into a diffuser providing a clearance to let the liquid flowing and a freedom for the cone to move axially; or a butterfly valve freely rotating around transversely shaft and the halves of which are oppositely convex in respect of the rotation axis of said valve. The mechanism for interrupting of the discharge jets is made in form of the cylindrical roller bodies placed in the casing equidistantly or non-equidistantly by a separator wheel and resting on a ball working as both a roller support and a float valve. And the number of said cylindrical bodies is either (n+1) or (n−1) where (n) is a number of outlet orifices.
246 Dynamic reduction of the moisture layer during the displacement of a viscoelastic fluid using a fluid with lower viscosity US10484778 2002-07-22 US20050028971A1 2005-02-10 Eugenia Corvera-Poire; Mariano Lopez de Haro; Jesus Del Rio Portilla
The invention relates to a method of optimizing the displacement of a viscoelastic fluid in a pore, tube, duct, channel, fracture, porous medium or interconnected latticework or in an interconnected assembly of pores, tubes, ducts, channels, cavities and/or fractures using a fluid with a lower viscosity. The inventive method consists in displacing the viscoelastic fluid using a displacing fluid which supplies a signal thereto comprising pressure pulses at an optimum frequency. In this way, the moisture layer between the displaced fluid and the walls of the pores, tubes, channels, cavities, fractures or porous medium is dynamically reduced during said displacement, thereby facilitating optimum extraction.
247 Regenerative combustion device US10037114 2002-05-28 US06705425B2 2004-03-16 Phillip B. West
A regenerative combustion device having a combustion zone, and chemicals contained within the combustion zone, such as water, having a first equilibrium state, and a second combustible state. Means for transforming the chemicals from the first equilibrium state to the second combustible state, such as electrodes, are disposed within the chemicals. An igniter, such as a spark plug or similar device, is disposed within the combustion zone for igniting combustion of the chemicals in the second combustible state. The combustion products are contained within the combustion zone, and the chemicals are selected such that the combustion products naturally chemically revert into the chemicals in the first equilibrium state following combustion. The combustion device may thus be repeatedly reused, requiring only a brief wait after each ignition to allow the regeneration of combustible gasses within the head space.
248 Utilization of energy from flowing fluids US09863165 2001-05-23 US06550534B2 2003-04-22 James Ford Brett
A fluid powered downhole vibration tool used in a well bore wherein fluids are pumped from the surface into a formation through the well bore. The tool includes a fluid powered motor located within the well bore. The fluid powered motor is in communication with the fluids pumped from the surface. In one embodiment, an actuator coupling is rotated by the fluid powered motor. A seismic mass is rotated in the well bore by the actuator coupler, the seismic mass engaging the well bore and causing vibration of the well bore.
249 Method to increase the oil production from an oil reservoir US09581432 2000-06-13 US06499536B1 2002-12-31 Olav Ellingsen
A method to increase the production of oil from an oil reservoir is described. The method includes injecting a magnetic or magnetostrictive material through an oil well into the oil reservoir, vibrating the material with the aid of an alternating electric field and removing oil from the oil well.
250 Transducers, and methods of producing transducers, with cryogenically treated transducer members US09782408 2001-02-12 US06491095B2 2002-12-10 Harry W. Kompanek
A transducer provides (a) increased magnitudes of vibrations without cracking and (b) increased power to the transducer, in response to alternating voltages, for producing transducer vibrations with increased magnitudes. A polycrystalline ceramic (e.g. polycrystalline lead titanate or polycrystalline lead zirconate) has a looped configuration with a gap and has properties of vibrating upon an introduction of an alternating voltage, preferably rich in harmonies, to the ceramic. The ceramic is cryogenically treated as by initially reducing its temperature to approximately −100° C., then disposing the ceramic in liquid nitrogen and thereafter gradually increasing its temperature to approximately room temperature. This increases the dielectric strength of the ceramic by prestressing the ceramic, thereby providing for the ceramic to receive increased voltages without cracking. An alternating voltage rich in harmonics (e.g. square wave voltage) may be applied to the ceramic. The transducer also includes a support member (e.g. steel or aluminum) having a looped configuration and having a gap aligned with the ceramic gap and having properties of vibrating with the ceramic. The support member envelopes, and is attached to, the ceramic. The support member may have a uniform thickness around its periphery or a progressively increasing thickness with progressive distances in opposite directions from the gap to enhance its ability to withstand cracking when subjected to vibrations. In other embodiments, a plurality of transducers may be combined in different ways to form a transducer assembly with enhanced power characteristics.
251 Transducers, and methods of producing transducers, with cryogenically treated transducer members US09782408 2001-02-12 US20020108749A1 2002-08-15 Harry W. Kompanek
A transducer provides (a) increased magnitudes of vibrations without cracking and (b) increased power to the transducer, in response to alternating voltages, for producing transducer vibrations with increased magnitudes. A polycrystalline ceramic (e.g. polycrystalline lead titanate or polycrystalline lead zirconate) has a looped configuration with a gap and has properties of vibrating upon an introduction of an alternating voltage, preferably rich in harmonies, to the ceramic. The ceramic is cryogenically treated as by initially reducing its temperature to approximately null100null C., then disposing the ceramic in liquid nitrogen and thereafter gradually increasing its temperature to approximately room temperature. This increases the dielectric strength of the ceramic by prestressing the ceramic, thereby providing for the ceramic to receive increased voltages without cracking. An alternating voltage rich in harmonics (e.g. square wave voltage) may be applied to the ceramic. The transducer also includes a support member (e.g. steel or aluminum) having a looped configuration and having a gap aligned with the ceramic gap and having properties of vibrating with the ceramic. The support member envelopes, and is attached to, the ceramic. The support member may have a uniform thickness around its periphery or a progressively increasing thickness with progressive distances in opposite directions from the gap to enhance its ability to withstand cracking when subjected to vibrations. In other embodiments, a plurality of transducers may be combined in different ways to form a transducer assembly with enhanced power characteristics.
252 Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoirs using pulsed power electrohydraulic and electromagnetic discharge US75522801 2001-01-05 US6427774B2 2002-08-06 THOMAS SALLY A; GILBERT WILLIAM W; HUFFMAN ALAN ROYCE
Pulsed power sources are installed in one or more wells in the reservoir interval. The pulse sources include (1) an electrohydraulic generator that produces an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir, and an acoustic pulse from the plasma vaporization of water placed around the source that propagates through the reservoir at the speed of sound in the reservoir and (2) an electromagnetic generator that produces only an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir. The combination of electrohydraulic and electromagnetic generators in the reservoir causes both the acoustic vibration and electromagnetically-induced high-frequency vibrations occur over an area of the reservoir where stimulation is desired. Single generators and various configurations of multiple electrohydraulic and electromagnetic generators stimulate a volume of reservoir and mobilize crude oil so that it begins moving toward a producing well. The method can be performed in a producing well or wells, an injector well or wells, or special wells drilled for the placement of the pulsed power EOR devices. The method can be applied with other EOR methods such as water flooding, CO2 flooding, surfactant flooding, diluent flooding in heavy oil reservoirs. The recovered formation fluids may be separated into various constituents.
253 Utilization of energy from flowing fluids US09863165 2001-05-23 US20010023763A1 2001-09-27 James Ford Brett
A fluid powered downhole vibration tool used in a well bore wherein fluids are pumped from the surface into a formation through the well bore. The tool includes a fluid powered motor located within the well bore. The fluid powered motor is in communication with the fluids pumped from the surface. In one embodiment, an actuator coupling is rotated by the fluid powered motor. A seismic mass is rotated in the well bore by the actuator coupler, the seismic mass engaging the well bore and causing vibration of the well bore.
254 Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoirs using pulsed power electrohydraulic and electromagnetic discharge US09500669 2000-02-09 US06227293B1 2001-05-08 Alan Royce Huffman; Richard H. Wesley
Pulsed power sources are installed in one or more wells in the reservoir interval. The pulse sources include (1) an electrohydraulic generator that produces an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir, and an acoustic pulse from the plasma vaporization of water placed around the source that propagates through the reservoir at the speed of sound in the reservoir and (2) an electromagnetic generator that produces only an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir. The electromagnetic pulse produces a high frequency vibration of the reservoir that is active at the scale of the pores in the rock that acts to decrease the effective viscosity of the oil and lower the resistance of the crude oil to flow, and the acoustic pulse from the plasma effect enhances the mobility of the crude further. The combination of electrohydraulic and electromagnetic generators in the reservoir causes both the acoustic vibration and electromagnetically-induced high-frequency vibrations occur over an area of the reservoir where stimulation is desired. Single generators and various configurations of multiple electrohydraulic and electromagnetic generators stimulate a volume of reservoir and mobilize crude oil so that it begins moving toward a producing well. The method can be performed in a producing well or wells, an injector well or wells, or special wells drilled for the placement of the pulsed power EOR devices. The method can be applied with other EOR methods such as water flooding, CO2 flooding, surfactant flooding, diluent flooding in heavy oil reservoirs.
255 Methods of remediation of chemical contaminants dispersed in geologic media US09285507 1999-04-02 US06204429B1 2001-03-20 Yogendra M. Gupta; Ramamurthi Mahalingham
Chemically contaminated soil samples are subjected to a shock wave sufficient in amplitude and duration to induce polymerization and/or decomposition of the contaminant chemicals.
256 Method and apparatus for subterranean thermal conditioning US934340 1997-09-19 US6112808A 2000-09-05 Robert Edward Isted
A method and apparatus for subterranean thermal conditioning. The first step involves providing a tubular magnetic induction apparatus. The second step involves positioning the magnetic induction apparatus into a subterranean environment. The third step involves supplying voltage waves to the magnetic induction apparatus thereby inducing a magnetic field in and adjacent to the magnetic induction apparatus to thermally condition the subterranean environment. This method and apparatus has application in the petroleum and mining industries.
257 Apparatus and method for in situ removal of contaminants using sonic energy US832726 1997-04-11 US5984578A 1999-11-16 Deran Hanesian; Angelo J. Perna; John R. Schuring; Hugo J. Fernandez
In preferred embodiments, an apparatus and method for enhancing the in situ removal of at least one contaminant from a contaminated body, the body being provided with at least one interstice, by generating and focusing vibrations toward the interstice, thereby exciting the contaminant within the body, whereby transport of the contaminant out of the body is facilitated. Preferably, the vibrations are sonic or ultrasonic. Vacuum extraction or transformation of the contaminant may also be effected.
258 Apparatus and method for increasing production rates of immovable and unswept oil through the use of weak elastic waves US762068 1996-12-09 US5836389A 1998-11-17 Dennis Wagner; Reed Juett
A method and apparatus are provided for improving the production of unswept and immovable oil from conventional oil wells. The oil recovery system utilizes an impulse wave device to produce impulse waves which travel down-hole and strike a bridge plug. When the impulse waves strike the bridge plug, weak elastic waves are created. After creation, the weak elastic waves propagate in all directions. The weak elastic waves are maintained in a general area near an oil formation by a conventional packer and a diffuser/deflector.
259 Acoustic well cleaner US544409 1995-10-10 US5595243A 1997-01-21 Voldi E. Maki, Jr.; Mukul M. Sharma
A method and apparatus are disclosed for cleaning the wellbore and the near wellbore region. A sonde is provided which is adapted to be lowered into a borehole and which includes a plurality of acoustic transducers arranged around the sonde. Electrical power provided by a cable is converted to acoustic energy. The high intensity acoustic energy directed to the borehole wall and into the near wellbore region, redissolves or resuspends the material which is reducing the permeability of the formation and/or restricting flow in the wellbore.
260 Method of producing methane gas from a coal seam US329458 1994-10-26 US5462116A 1995-10-31 Walter D. Carroll
A method and system for producing coal-bed methane gas from a wellbore is disclosed. The method consists of drilling a wellbore so that a coal seam is intersected, and thereafter casing and completing the wellbore. A transducer is lowered into the wellbore, with the transducer capable of converting electrical energy to a sound energy. The transducer is activated, and methane gas is then produced from the coal seam. The energy to the transducer may be varied so that a maximum rate of methane gas production is obtained.
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