序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 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 EP13822820.0 2013-07-26 EP2878178A2 2015-06-03 AGEEV, P. G.; MOLCHANOV, A. A.
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 delivery device for introducing a metal conductor into the gap, and a high voltage transformer for powering the plasma emitter. A system and method for stimulating wells, deposits, and boreholes through controlled periodic oscillations generated using the plasma source. The system includes the plasma source, a ground control unit, and a support cable. In the method, the plasma source is submerged in the fluid medium of a well, deposit, or borehole and is used to create a metallic plasma in the gap. The metallic plasma emits a pressure pulse and shockwaves, which are directed into the fluid medium. Nonlinear, wide-band, periodic and elastic oscillations are generated in the fluid medium, including resonant oscillations by passage of the shockwaves.
102 DRILLING CONTROL AND INFORMATION SYSTEM EP13718007.1 2013-04-03 EP2834459A2 2015-02-11 Mebane III, Robert Eugene
A drilling control and information system comprising: a rig site network including a drilling equipment controller and a drilling parameter sensor; a downhole sensor communicatively coupled to the rig site network; a data center communicatively coupled to the rig site network; a remote access site communicatively coupled to the data center; and a pressure management application communicatively coupled to the rig site network, wherein the pressure management application receives pressure data from the drilling parameter sensor and the downhole sensor and issues an operating instruction to the drilling equipment controller.
103 STIMULATION METHOD EP12813833.6 2012-12-20 EP2795047A1 2014-10-29 HALLUNDBÆK, Jørgen
The present invention relates to a stimulation system for stimulation of oil production in an oil field. The stimulation system comprises a plurality wells, wherein a plurality of activation devices are arranged in the wells, and wherein the activation devices are activated with a frequency of once within a period of 1- 365 days and with an energy discharge of at least 0.1 kilograms TNT equivalence per activation. Furthermore, the invention relates to a stimulation method.
104 METHOD AND SYSTEM FOR IMPACT PRESSURE GENERATION EP12812602.6 2012-12-19 EP2795045A2 2014-10-29 PAULSEN, Jim-Viktor
A method is described for the recovery of hydrocarbon from a reservoir. The method comprises arranging a chamber in fluid communication with the reservoir via at least one conduit, and having the chamber comprising first and second wall parts movable relative to each other. An impact pressure is provided in the fluid to propagate to the reservoir via the conduit, where the impact pressure is generated by a collision process between an object arranged outside of the fluid and the first wall parts for the first wall part to impact on the fluid in the chamber. Further, the chamber is arranged to avoid a build-up of gas-inclusions where the first wall part impacts on the fluid. This may be obtained by arranging the conduit in or adjacent to the zone where the gas-inclusions naturally gather by influence of the gravitational forces, or by placing the first wall part impacting on the fluid away from this zone. The invention further relates to a system for the generation of impact pressure as mentioned above.
105 METHOD FOR RECOVERY OF HYDROCARBON FLUID EP12809265.7 2012-12-19 EP2795043A2 2014-10-29 PAULSEN, Jim-Viktor
A method is described for recovery of a hydrocarbon fluid from a porous medium by injection of a fluid into the porous medium. The method comprises determining a Rayleigh time on the basis of the density of the fluid and the hydrocarbon fluid, the median pore diameter of the porous medium, and surface tension between the fluid and the hydrocarbon fluid. Further, pressure stimulation is provided in the fluid and generated by a collision process with a collision contact rise time which is of the range of 1-100 times the Rayleigh time. Alternatively or additionally, the providing a pressure stimulation in the fluid include generating an impact pressure with a pressure amplitude I and a pressure rise time Δ t, where the pressure amplitude is larger than the relation γcΔ t/a 2, where γ is the surface tension between the fluid and the hydrocarbon fluid, and c is the speed of sound in the porous media. In aspects of the invention, the method comprises arranging a chamber in fluid communication with the porous medium via at least one conduit, and having the chamber comprising first and second wall parts movable relative to each other. The pressure stimulation comprises providing an impact pressure in the fluid to propagate to the porous medium via the conduit, and where the impact pressure is generated by the collision process between an object arranged outside of the fluid and the first wall parts for the first wall part to impact on the fluid in the chamber.
106 VARIABLE FREQUENCY FLUID OSCILLATORS FOR USE WITH A SUBTERRANEAN WELL EP12826118.7 2012-08-14 EP2748415A2 2014-07-02 SCHULTZ, Roger, L.; PIPKIN, Robert, L.; HUNTER, Timothy
A well tool can include an oscillator which varies a flow rate of fluid through the oscillator, and another oscillator which varies a frequency of discharge of the fluid received from the first oscillator. A method can include flowing a fluid through an oscillator, thereby repeatedly varying a flow rate of fluid discharged from the oscillator, and receiving the fluid from the first oscillator into a second oscillator. A well tool can include an oscillator including a vortex chamber, and another oscillator which receives fluid flowed through the vortex chamber.
107 METHOD EMPLOYING PRESSURE TRANSIENTS IN HYDROCARBON RECOVERY OPERATIONS EP11724675.1 2011-06-15 EP2582907A1 2013-04-24 PAULSEN, Jim-Viktor
The invention relates to methods to induce pressure transients in fluids for use in hydrocarbon recovery operations. The invention is further characterized by inducing the pressure transients in a fluid by a collision process. The collision process employs a moving object (103,203,303,403) that collides outside the fluid with a body (102,202,302,402) that is in contact with the fluid inside a partly enclosed space (101,201,301,401). Furthermore, the pressure transients must be allowed to propagate in the fluid. The fluid may be one or more of the following group: primarily water, consolidation fluid, treatment fluid, cleaning fluid, drilling fluid, fracturing fluid and cement.
108 SYSTEM AND METHOD FOR ULTRASONICALLY TREATING LIQUIDS IN WELLS AND CORRESPONDING USE OF SAID SYSTEM EP11701850.7 2011-02-07 EP2534332A2 2012-12-19 SOLENTHALER, Peter
A treatment device for treating liquids in oil, gas or water wells comprises an ultrasonic treatment device (1). The ultrasonic treatment device (1) includes a resonator (2), a transducer (9) and a matching transformer (10) for transferring a maximum of power from an ultrasonic generator to the transducer (9) through a long cable (11). The cable (11) has a considerable length of at least 3km and is attached to a generator (5).
109 APPARATUS EMPLOYING PRESSURE TRANSIENTS FOR TRANSPORTING FLUIDS EP10780848.7 2010-05-26 EP2435701A1 2012-04-04 PAULSEN, Jim-Viktor
The invention relates to an apparatus employing pressure transients for transporting fluids comprising at least one partly enclosed space (201,301,501,601,606,701,1101,1201), at least one body (202,302,502,602,607,702,1102,1202) in said at least one partly enclosed space, where said at least one body is movable relatively to the interior of said at least one partly enclosed space, at least one opening (204,205,304,404,504,604,605,704,705,1104, 1204) in said at least one enclosed space which allows a fluid to flow alternately in the direction into and out of said at least one partly enclosed space, at least one first conduit (211,311,411,511,513,611,711,1111,1211) and at least one second conduit (212, 312,412,512,514,612,712,1112,1212) in fluid communication with at least one of said at least one opening, at least one first reservoir (231.331.431.531.533.631.731.1131.1231) and at least one second reservoir (232.332.432.532.534.632.732.1132.1232) connected to said at least one first conduit and at least one second conduit respectively, at least one first mechanical unit (221.321.421.521.523.621.721.1121.1221) and at least one second mechanical unit (222.322.422.522.524.622.722.1122.1222) in said at least one first conduit and at least one second conduit respectively, where said at least one first mechanical unit only allows flow in said at least one first conduits from said at least one first reservoir and towards said at least one partly enclosed space, and said at least one second mechanical unit only allows flow in said at least one second conduit in the direction from said at least one partly enclosed space and towards said at least one second reservoir. The invention is further characterized in that at least one positive pressure transient is generated by at least one object, with nonzero momentum, colliding with said at least one body, where at least part of said at least one positive pressure transient produces flow of fluid out of said at least one partly enclosed space through said at least one second mechanical unit and into said at least one second reservoir, and at least one negative pressure transient is generated in said at least one partly enclosed space, where said at least one negative pressure transient, together with the resulting at least one hydrostatic head between at least one of said at least one first reservoirs and at least one of said at least one partly enclosed space, produce flow of fluid out of said at least one first reservoir through said at least one first mechanical unit and into said at least one partly enclosed space.
110 METHOD AND ASSEMBLY FOR RECOVERING OIL USING ELASTIC VIBRATION ENERGY EP10770006.4 2010-04-16 EP2426311A2 2012-03-07 ABRAMOVA, Anna Vladimirovna; BAYAZITOV, Vadim Muratovich; PECHKOV, Andrei Andreevich

The invention relates to area of oil production, specifically to oil recovery with use of energy of elastic vibrations and can be with high efficiency realized in course of works exceeding 2000 meters.

The method for oil recovery with use of energy of elastic vibrations including placements in a well on working depth of downhole apparatus (4), which is connected to aboveground power supply units (2 and 3) and contains ultrasonic transducer (14) that provides for the generation of high frequency elastic vibrations, exciting elastic vibrations of different frequencies and then repeatedly applying the elastic vibrations to the oil formation (pool), wherein both high and low frequency vibrations are applied to the pool, note that the low frequency vibrations are generated with electric-pulse device, which is connected to an aboveground power supply (3) and comprises the following electrically interconnected components: a charger (15), a unit (16) of energy storage capacitors (17), a discharge unit with electrodes (18, 19), and two switching means (21, 22), one of which (21) provides grouping of charging capacitors (17) in one single unit (16) and the second (22) carries out switching of energy storage capacitors (17) from one type of electrical connection to another while impact of elastic vibrations of high frequency is performed in low frequency ultrasonic range, mainly on frequency 18 - 44 kHz and is continued in constant and/or pulse regime with intensity in the range of 1 - 5 Wt/sm2, and impact of elastic vibrations of low frequency is performed with discharge frequency of 0.2 - 0.01 Hz and with energy of single discharge equal to 100 - 800 J, note that DC voltage is supplied from power supply (3) to charger (15) with magnitude in the range of 300 - 150 V before charging energy storage capacitors (17) they are grouped in one single unit (16), charging of the unit (16) of charging capacitors (17) is carried out mainly with parallel connection of capacitors and is continued mainly during 20 seconds up to required level of voltage magnitude, with maximum magnitude equal to 20 - 27 kV. and before discharging of unit (16) of energy storage capacitors (17) providing supply of output voltage on electrodes (18 and 19) of discharging unit, all charging capacitors (17) or part of them are switched into series electrical connection, together with this impact with elastic vibrations of low and high frequency is performed sequentially and/or simultaneously mainly in fixed position of downhole apparatus (4), continued with constant and/or varying electrical and acoustical characteristics of aboveground and/or in-well equipment and technological parameters of oil recovery process and mainly during permanent or periodical pulling out of oil from a well.

The device realizing a method according to claim 1 includes aboveground power supply units (2, 3) and downhole apparatus (4) provided with control unit (1), which by electrical cable (5) is connected to aboveground power supply units (2, 3), designed as empty cylindrical body (6) and separated by partitions 7, 8 and 9 into hermetical modules 10, 11, 12 and 13 and contains source of elastic vibrations of high frequency designed as ultrasonic transducer (14) characterised in that it additionally contains source of low frequency elastic vibrations, which developed e.g. on basis of electro-pulse device connected to aboveground power supply (3) and placed in downhole apparatus (4), note that electro-pulse device contains electrically interconnected charger (15) unit (16) of energy storage capacitors (17), discharging unit with electrodes (18 and 19) and two switching means (21 and 22), one of which (21) provides grouping of charging capacitors (17) in one single unit (16) and the second (22) carries out in the unit (16) of energy storage capacitors (17) switching of capacitors from parallel connection to the series one and vice versa from series connection to the parallel one, note that switching means (21 and 22) are designed mainly as one device, which is placed in one module with the unit (16) of energy storage capacitors (17) and modules (11 and 12) of downhole apparatus (4) which contain unit (16) of energy storage capacitors (17) and source of elastic vibrations of high frequency (14) are filled with electro-insulating material (24).

111 ELECTROACOUSTIC METHOD AND DEVICE FOR STIMULATION OF MASS TRANSFER PROCESSES FOR ENHANCED WELL RECOVERY EP04810770.0 2004-11-12 EP1825101A1 2007-08-29 ARNOLDO-BARRIENTOS, Mario; ABRAMOV, Oleg; ABRAMOV, Vladimir; PECHKOV, Andrey; ZOLEZZI-GARRETON, Alfredo; PAREDES-ROJAS, Luis
An electro acoustic device and related method for increasing production capacity of wells that contains oil, gas and/or water is disclosed. The electro acoustic device produces vibrations stimulating occurrence of mass transfer processes within the well. The resultant acoustic flow generated in porous media, produced by superposition of longitudinal and shear waves, is developed over a characteristic frequency threshold value specific to water, normal oil and heavy oil, with an acoustic energy density capable of establishing higher fluidity zones in the porous media, promoting mobility and recovery of desired fluid and formation damage reduction in a wellbore. The down hole electro acoustic device is a submerged unit placed in the well producing zone, and consists of an electric generator, one or more electro acoustic transducers, and one or more waveguide systems (sonotrodes) that include tubular type radiators which provide transmission of elastic vibrations into the medium under treatment.
112 METHOD FOR INCREASING OILFIELD RECOVERY RATES AND OIL PRODUCTION EP03815282.3 2003-11-19 EP1728968A1 2006-12-06 MIRZOEV, Kamil Mamedovich; MIRZOEV, Vitaliy Kamilevich; AXMADIEV, Rustem Galievich; MIRZOEVA, Tatyana Kamilyevna

The invention relates to the oil-extracting industry and is intended for increasing petroefficiency of an oilfield and petroleum production in oily and depleted oil layers. The invention may be also applied in gas-production industry. It provides for increasing petroefficiency of an oilfield and petroleum production due to use of tidal stretching and compression of the earth's crust owing to solar-lunar influences on it. The essence of the invention: periodic external physical influences are exerted on an oil-bearing layer depending on solar-lunar influences on the earth's crust. Thus the physical influences are applied in a zone of oil-bearing layer during compression of the earth's crust at solar-lunar ebbs. They take into account the set of amplitudes of solar-lunar influences.

113 METHODS FOR IMPROVING OIL PRODUCTION EP00984939.9 2000-11-22 EP1266121B1 2005-12-21 Kerimov, Ikram Gadji Aga Ogly; Kerimov, Seymur Ikram Ogly
The invention is applied for increasing oil production and oil recovery of an oil-bearing bed by subjecting the bed to the action of vibrations from the Earth's surface. For this purpose, the character of the stressed state of the oil deposit is first determined by measuring the amplitudes of microseismic waves before and after subjecting it to test vibrations. Further, at the points where the difference of these amplitudes is maximum, the deposit is subjected to the action of vibration to increase oil production and recovery, and the points where this difference is minimum are used for drilling oil wells.
114 PROCESS FOR STIMULATION OF OIL WELLS EP98901589.6 1998-01-15 EP0981679B1 2003-11-19 ELLINGSEN, Olav
There is described a process for the stimulation of an oil reservoir or an oil well for enhanced oil recovery and/or seismic mapping of the reservoir, wherein a sound source is used. This sound source is operated by pressurized oil from the oil well by a hydraulic power unit at the surface, and the oil is conducted to an accumulator located in the sound source via a supply line.
115 METHOD AND APPARATUS FOR TREATING A WELLBORE WITH VIBRATORY WAVES TO REMOVE PARTICLES THEREFROM EP01990130.5 2001-10-22 EP1350006A1 2003-10-08 SOLIMAN, Mohamed; MESE, Ali; ROBISON, Clark; BIRCHAK, James; RODNEY, Paul; HAN, Wei; SHAH, Vimal; LINYAEV, Eugene; PROETT, Mark
A process and apparatus (200) for treating a wellbore (105) comprising subjecting a substantially same portion of the wellbore (105) to vibratory waves (220) produced by a plurality of wave generators (205 and 210). The waves (220) may have about the same frequency or a plurality of frequencies and the frequencies may partially overlap, not overlap, or be modulated across a range. Additionally, the frequencies may be modulated in an oval, hoop, and flexural modes. The vibratory waves (220) may be produced by firing the vibratory wave generators (205 and 210) simultaneously or in sequence. The wave generators (205 and 210) maybe a vibrating pipe, a piston, or a valve.
116 COUPLED ELECTROMAGNETIC AND ACOUSTIC STIMULATION OF CRUDE OIL RESERVOIRS EP01904966 2001-01-22 EP1257725A4 2003-07-23 HUFFMAN ALAN ROYCE; WESLEY RICHARD H; THOMAS SALLY A; GILBERT WILLIAM W
Pulsed power sources (33) are installed in one or more wells in a reservoir (11). The pulse sources include an electrohydraulic generator that produces an electromagnetic pulse and an acoustic pulse and an electromagnetic generator that produces an electromagnetic pulse (35). The combination of the two generators causes both the acoustic vibration and electromagnetically-induced high-frequency vibrations to occur in the area of the reservoir where stimulation is desired.
117 METHOD FOR IMPROVED WATER WELL PRODUCTION EP96906354.4 1996-02-07 EP0819207B1 2003-06-25 FRAZIER, William, C.; JANSEN, John, R.; TAYLOR, Robert, W.
A non-destructive method for stimulating, refurbishing, or otherwise increasing production from water wells, using pressure waveforms and mass displacement within the well bore volume. The non-destructive methods are useful in a variety of water production contexts and can be modified downhole to meet specific performance requirements.
118 Verfahren und Vorrichtung zur Erhaltung der Leistungsfähigkeit neuer Brunnen sowie zur Reinigung und Regenerierung bestehender Brunnen mittels Ultraschall EP96250281.1 1996-12-05 EP0778393B1 2002-09-25 Geisen, Gerhard; Jacobs, Klaus, Prof. Dr.; Bartetzko, Andreas
119 DOWNHOLE PULSER EP00989923.8 2000-11-28 EP1234099A1 2002-08-28 BRAITHWAITE, Stephen, Richard; HEIJNEN, Wilhelmus, Hubertus, Paulus, Maria
A pulser for generating pressure pulses in a wellbore formed in an earth formation, comprising a housing provided with an internal combustion engine including a cylinder and a piston (10) arranged to perform a combustion stroke upon combustion of a combustible gas mixture in the cylinder, a first spring (17) arranged to induce the piston to perform a compression stroke upon completion of the combustion stroke, the pulser further comprising a hammer (12) connected to the piston, an anvil (16) movable relative to the housing between a first position and a second position in which the pulser has a different volume than in the first position, the anvil being arranged so that the hammer impacts against the anvil during the combustion stroke and induces the anvil to move from the first to the second position, and a second spring (28) biasing the anvil from the second to the first position thereof.
120 PROCESS FOR STIMULATION OF OIL WELLS EP98901589.6 1998-01-15 EP0981679A1 2000-03-01 ELLINGSEN, Olav
There is described a process for the stimulation of an oil reservoir or an oil well for enhanced oil recovery and/or seismic mapping of the reservoir, wherein a sound source is used. This sound source is operated by pressurized oil from the oil well by a hydraulic power unit at the surface, and the oil is conducted to an accumulator located in the sound source via a supply line.
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