WO2005120816A1 - Downhole ultrasonic well cleaning device - Google Patents
Downhole ultrasonic well cleaning device Download PDFInfo
- Publication number
- WO2005120816A1 WO2005120816A1 PCT/US2005/019474 US2005019474W WO2005120816A1 WO 2005120816 A1 WO2005120816 A1 WO 2005120816A1 US 2005019474 W US2005019474 W US 2005019474W WO 2005120816 A1 WO2005120816 A1 WO 2005120816A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- generator
- ultrasonic
- energy
- well
- mechanical
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000002604 ultrasonography Methods 0.000 claims abstract 2
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 claims description 4
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 4
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 2
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 239000002356 single layer Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
Definitions
- This invention relates to downhole cleaning using an ultrasonic device. More particularly, this invention relates to downhole cleaning utilizing ultrasonic generator(s) powered by piezoelectric element(s), not requiring external electric power.
- the ultrasonic generator and piezoelectric element are placed within the completion equipment and the piezoelectric element(s) is normally in an unstrained state, generating no electrical current, but when subjected to mechanical force, it generates electricity to power the ultrasonic device.
- Background of the Invention Well productivity is often impaired by fine particles lodged in restrictions or caked on the wellbore. Chemical cleaning has limited effectiveness in removal of these materials. Ultrasonic devices have been shown to enhance cleaning and particle separation from liquids.
- U.S. 4,280,557 discloses an apparatus for cleaning an extended number of apertured portions of the lower region of an oil well casing, which includes a sonic oscillator, a stem member in the form of an elongated elastic tube which runs along said extended number of apertured portions, said oscillator to be attached to the top end of said stem member in the region of the apertured portions to be cleaned, and means for driving said oscillator.
- 5,458,860 discloses the use of sonic energy to enhance the removal of alkaline earth scale using an aqueous solution having a pH of about 8 to 14 and comprising a chelating agent.
- the use of an external electric power source connected by a cable to power an electroacoustic ultrasonic energy producing transducer is disclosed in U.S. 5,109,922 which describes a power supply adjacent to the well and an electrical conductor means of a length sufficient to extend from ground level to at least the level of oil in the well for conducting alternating electrical power from said power supply to said transducer.
- U.S. 5,184,678 discloses an apparatus for stimulating fluid production in a producing well wherein a well stimulating tool comprising a sealed tool housing with an acoustic transducer in the housing is run into a producing well on an electric wireline and placed at a depth opposite perforations in the producing zone.
- U.S. 5,595,243 discloses a method and apparatus for cleaning the wellbore and the near wellbore region in which 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, and wherein electrical power provided by a cable is converted to acoustic energy.
- the use of mechanical coupling to produce low frequency waves is disclosed in U.S.
- 4,788,467 discloses in combination a housing, at least one transducer disposed in the housing and having properties of receiving electrical energy and converting the electrical energy into expansions and contractions of the transducer for the pumping of oil in the oil well in accordance with such expansions and contractions, passages extending into and out of the housing at opposite ends of the housing at a position below the transducer, a piston disposed in the housing for movement in accordance with the pressure of the fluid in the oil well, and a spring supported between the piston and the housing for compression and expansion to inhibit any cavitation of the oil in the oil well as a result of such expansion and contraction of the transducer and as a result of changes in the temperature of the oil in the oil well.
- 5,554,922 discloses a system for the conversion of pressure fluctuations prevailing in a fluid distribution piping system into electrical energy, characterized in that it includes a casing, at least one chamber formed in the casing which may be linked to a fluid system and which is limited on one side by a wall which may be moved back and forth under the influence of the pressure prevailing in the fluid system, and at least one apparatus which is connected to the movable wall and which converts the mechanical energy transmitted by this into electrical energy.
- current downhole ultrasonic cleaning devices are powered by external electric sources connected to the device by wires or cables. It would be extremely valuable in the art if there were an alternative, lower cost, simpler way to power such devices using mechanical force to generate electrical power using a piezoelectric device.
- the present invention is a cleaning apparatus for any structure where caking of particles may affect productivity, characterized in that it requires no external electrical source and includes the following elements:
- At least one ultrasonic sonde or horn that produces ultra high frequency pressure oscillations in a fluid when energized by an electrical signal
- a generator to deliver the necessary electrical signal to the sonde or horn said generator containing appropriate circuitry to provide the appropriate voltage, power, and frequency of electrical excitation to the ultrasonic sonde in item 1);
- At least one apparatus which converts mechanical energy into electrical energy, preferably a piezoelectric element, also placed or inserted within said structure connected to the generator described in item 2) and through it able to provide electrical excitation to the ultrasonic sonde; and 4) A means for applying mechanical force to said apparatus to generate electricity to power said mechanical electrical converter.
- the invention is also a method of cleaning a structure that is enclosed, or otherwise difficult to access, and where mechanical force can be applied more readily or at lower cost than electrical power, such as, for example, an enclosed tank or vessel, or a pipeline or subterranean well, such as those used for oil and gas production, using an ultrasonic source, characterized in that no external electric source is required, which includes the elements of: 1) Placing in the completion equipment one or more ultrasonic generators); 2) Placing within the completion equipment in close proximity to the ultrasonic generator(s) one or more apparatus(s) for converting mechanical force to electrical energy, preferably piezoelectric element(s), said element(s) normally in an unstrained or relaxed state; and 3) Applying mechanical force to said piezoelectric element when it is desirable to generate ultrasonic excitation to enhance well cleaning.
- Figure 1 is a block diagram of the invention configured for temporary insertion into the well or other structure of fixed diameter with a packer on tubing.
- Figure 2 is a diagram of the invention configured for permanent installation in the wellbore and activation by inserted tubing.
- Figure 3 is a graph showing voltage vs. current for a piezo generator.
- Figures 4(a) and 4(b) are diagrams of compression and tension generators, respectively.
- Figures 5(a) and 5(b) are diagrams of parallel and transverse shear generators, respectively.
- Figures 6(a) and 6(b) are diagrams of series and parallel bending generators, respectively.
- Piezoelectric materials transform energy from mechanical to electrical and vice-versa.
- Piezoelectric materials produce an electric field when exposed to a change in dimension caused by an imposed mechanical force (mechanical to electrical conversion) and conversely, an applied electric field will produce a mechanical stress (electrical to mechanical conversion). These materials can be used for sensing purposes, including actuator and sensor applications.
- a downhole ultrasonic well cleaning device is powered by an apparatus that converts mechanical force into electrical energy, preferably a piezoelectric generator. Both are installed or inserted within the completion equipment of any structure where the caking of particles may affect productivity. The preferred application is in cleaning wells and subterranean formations.
- the ultrasonic generator and piezoelectric element would be placed within the completion equipment (e.g.
- Figure 1 illustrates a configuration for temporary insertion in the well.
- the mechanical electrical converter 1, ultrasonic generator 2, and the ultrasonic sonde 3 are inserted on the end of a temporarily installed tubing 4, which is anchored in place by a temporary packer sealing element 5.
- Tension or compression as denoted by the arrow 6 is applied to this tubing from an oil field drilling rig, workover rig, or workover hoist.
- Figure 2 illustrates a configuration for permanent installation.
- the mechanical electrical converter 1, ultrasonic generator 2, and the ultrasonic sonde 3 are permanently affixed to the permanent production tubing of the well 4 which may be affixed with a permanent packer sealing element 5.
- the force 6 is applied to a second tubing 7 that is temporarily inserted into the bore of the permanent tubing 4.
- a flow passage 8 exists.
- the principle differences between the two are the passageway to allow fluid production in the second example and the arrangement of packers and alignment of tubing to allow easy removal in the first application.
- Other configurations could be envisioned but these diagrams capture the key elements of two broad classes.
- the piezoelectric element of the mechanical electrical converter is normally in a relaxed (unstrained) state and generates no electrical current, however the piezoelectric element(s) are mounted or inserted in the pipeline or well equipment in a manner which allows the operator to apply mechanical force as required.
- mechanical force would be applied to the piezoelectric element to generate electricity to power the ultrasonic sonde.
- Ultrasonic sondes convert electrical energy to ultra high frequency pressure oscillations when electrical energy is applied to the sonde at its operational resonant frequency.
- the operational resonant frequency and range of the sonde is determined by its design, specifically geometry and materials of construction. Various equipment manufacturers accomplish this in a number of ways.
- the present invention is not intended to be limited to any particular ultrasonic sonde. Suitable acoustic sondes and transducers are described, for example, in U.S. 5,595,243 and U.S. 5,184,678, both incorporated by reference herein in the entirety.
- the ultrasonic generator converts normal sources of electricity, such as direct current from batteries or alternating current, typically 20 to 80 Hz, to ultra high frequency alternating current to excite the operational resonant frequency of the ultrasonic sonde.
- the principles to be applied in designing a suitable generator for this application are known to those skilled in the art. Examples are given in U. S. 5,184,678 and U. S. 5,595,243.
- Use of direct current from a battery has been revealed by Y. Bar-Cohen, S.
- the ultrasonic generator receives input signals from the piezoelectric element when it is placed in tension or compression or it is otherwise strained.
- the device for converting mechanical to electrical energy revealed in this invention is based on the phenomenon that piezoelectric elements can be used to generate electrical power when they are subjected to mechanical force, i.e.
- Piezoelectric materials include many polymers, ceramics, and molecules, such as water, which are permanently polarized.
- Suitable piezoelectric materials in the present invention for producing an electric field as the result of an imposed mechanical force include, for example, but are not limited to ceramic, quartz (SiO 2 ), barium titanate (BaTiO 3 ), lithium niobate, polyvinyledene difluoride (PVDF), and lead zirconate titanate (PZT).
- Ceramic materials are ceramic materials manufactured of specific materials and under specific conditions to impart piezoelectric properties. Other classes of materials, such as certain minerals and combinations of metal and minerals may also create the same effect and could be used in this invention.
- the ceramic materials are prefe ⁇ ed because their properties are more reproducible and controllable.
- the property that is exploited in this invention is that when a mechanical force is applied, placing the piezoceramic in tension, compression, or inducing strain, an electrical charge is generated. The charge generated is proportional to the force applied.
- this charge will induce an electromotive force that can supply current to power electrical devices like the generator and sonde in this invention.
- the material to be used in this invention will be chosen based on the relationship between the properties of the material, the mechanical design of the installation or apparatus delivering force, and the electrical properties (voltage and power) required to power the sonde. These are captured schematically in Figure 3, which illustrates a typical curve of voltage produced versus current for a piezo ceramic.
- the value of voltage produced for a given mechanical loading is a property of the piezo ceramic know in the industry as the "g" constant. This constant is commonly known for commercially available materials suitable for this application.
- the maximum voltage (denoted V oc in Figure 3) is achieved if the circuit is open, i.e.
- the piezoelectric element in this invention is placed in a mechanical element or housing within the wellbore or inserted tubing such that mechanical force imposed on the tubing is transmitted to the element. As illustrated in Figures 4-6 this mechanical force could be used to place the piezo electric element in tension or compression or to bend it.
- extension generators Other alternatives are bending or extension of two-layer generators including extension and bending generators. Applying mechanical stress to a laminated two layer element results in electrical generation depending on the direction of the force, the direction of polarization, and the wiring of the individual layers.
- an extension generator when a mechanical stress causes both layers of a suitably polarized 2- layer element to stretch (or compress), a voltage is generated which tries to return the piece to its original dimensions.
- the element acts like a single sheet of piezo.
- the metal shim sandwiched between the two piezo layers provides mechanical strength and stiffness. Any of these or combinations thereof may be applied to deliver the voltage and power required to drive the sonde.
- the stack which comprises a large number of piezo layers, is a very stiff structure with a high capacitance. It is suitable for handling high force and collecting a large volume of charge.
- Series operation refers to the case where supply voltage is applied across all piezo layers at once. The voltage on any individual layer is the supply voltage divided by the total number of layers.
- a 2-layer device wired for series operation uses only two wires, one attached to each outside electrode (figure 6a).
- Parallel operation refers to the case where the supply voltage is applied to each layer individually. This means accessing and attaching wires to each layer.
- a 2-layer bending element wired for parallel operation requires three wires; one attached to each outside electrode and one attached to the center shim ( Figure 6b).
- the ultrasonic generator and piezoelectric elements would be attached or installed in a structure or wellbore during completion. This could be accomplished in a number of ways, as would be apparent to those skilled in the art and the present invention is not intended to be limited to a particular method.
- the elements can be secured by, for example, welding, or cement adhesions, or by screwing in mounting brackets. (See: http://www.loadmonitors.com/services.htm )
- the mechanical force could be applied by several means, including, but not limited to:
- the apparatus could be situated on sectional tubing, coiled tubing, or non-electric wireline, then inserted into the wellbore and actuated by mechanical force, by one of the methods described above.
- the mechanical force could be applied by, for example: 1)
- Well tubing can be placed in compression using a packer or other tubing anchor to lock the tubing in place.
- packers and tubing anchors are commercial items available from a variety of vendors and widely used in well construction activities, (See, for example, http://www.bakerhughes.com/bot/service tools/index.htm) and can be placed in tension or compression using mechanical equipment normally available on rigs and hoists used for well operations.
- the techniques used to place tubing in compression or tension in a controlled manner are often practiced by those skilled in the art using established techniques.
- the piezoelectric elements could be situated such that when either tension or compression of the tubing occurs, the piezoelectric element is subjected to force, thus generating electric power for the ultrasonic transducer.
- a second tubing, of slightly smaller or larger diameter could be inserted into or around permanent tubing, and as it moves it would come in contact with the piezoelectric elements secured in the completion equipment, to create mechanical force, which is converted to electric power for the ultrasonic generator.
- a mechanical device could be introduced into the wellbore on a non-conducting wire, and as it comes into contact with the piezoelectric element(s), the element(s) would be bent or displaced.
- the ultrasonic sonde and piezoelectric mechanical to electrical converter could be situated on sectional tubing, or coiled tubing, and subject to compression or tension loads using the equipment and methods described above.
- a non-electric wireline could be inserted into the wellbore with a device designed to catch the mechanical electrical converter or an attachment to it. The operator would then pull on the non-electric wireline to apply a tension load to the mechanical electrical converter. This method would be limited by the strength of the non-electric wireline.
- the movement results in an electrical voltage which can be measured at the electrical terminals of the piezoelectric converter and used to power the ultrasonic sonde by suitable electronics, referred to herein as the generator, which are not the object of the present invention.
- This method can be used to clean enclosed tanks or vessels where access for other methods is limited. It can be used to clean water production or injection wells or wells used for the injection of steam or production of hot water or steam from subterranean geothermal deposits. Variations might include: • Positioning of the respective elements (generator or oscillator) with respect to each other. • Nature of the electrical circuitry used to transmit the electrical energy generated to the sonic oscillator. • Materials of construction of the various elements.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Cleaning By Liquid Or Steam (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05757243A EP1750930B1 (de) | 2004-06-03 | 2005-06-03 | Ultraschallreinigungsvorrichtung für bohrloch |
DE602005023855T DE602005023855D1 (de) | 2004-06-03 | 2005-06-03 | Ultraschallreinigungsvorrichtung für bohrloch |
AT05757243T ATE483094T1 (de) | 2004-06-03 | 2005-06-03 | Ultraschallreinigungsvorrichtung für bohrloch |
CA2566653A CA2566653C (en) | 2004-06-03 | 2005-06-03 | Downhole ultrasonic well cleaning device |
NO20070029A NO20070029L (no) | 2004-06-03 | 2007-01-02 | Ultrasonisk bronnrenseinnretning nede i bronnen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57643204P | 2004-06-03 | 2004-06-03 | |
US60/576,432 | 2004-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005120816A1 true WO2005120816A1 (en) | 2005-12-22 |
Family
ID=34971836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/019474 WO2005120816A1 (en) | 2004-06-03 | 2005-06-03 | Downhole ultrasonic well cleaning device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050269078A1 (de) |
EP (1) | EP1750930B1 (de) |
AT (1) | ATE483094T1 (de) |
CA (1) | CA2566653C (de) |
DE (1) | DE602005023855D1 (de) |
NO (1) | NO20070029L (de) |
WO (1) | WO2005120816A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101328796B (zh) * | 2007-06-22 | 2011-08-24 | 汪必启 | 环保型防蜡防垢降粘器 |
WO2017076368A1 (zh) * | 2015-11-06 | 2017-05-11 | 汪必启 | 一种节能环保防蜡防垢超强降粘器 |
CN110942615A (zh) * | 2019-11-06 | 2020-03-31 | 长江大学 | 一种井下监测系统 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20080238252A1 (en) * | 2007-03-27 | 2008-10-02 | Barnard Jason J | Piezoelectric resonant power generator |
US20090120633A1 (en) * | 2007-11-13 | 2009-05-14 | Earl Webb | Method for Stimulating a Well Using Fluid Pressure Waves |
US20090178802A1 (en) * | 2008-01-15 | 2009-07-16 | Baker Hughes Incorporated | Parasitically powered signal source and method |
US20090277629A1 (en) * | 2008-05-12 | 2009-11-12 | Mendez Luis E | Acoustic and Fiber Optic Network for Use in Laterals Downhole |
US8256219B2 (en) | 2008-08-19 | 2012-09-04 | Canyon West Energy, Llc | Methods for enhancing efficiency of steam-based generating systems |
CA2910902C (en) * | 2013-04-30 | 2020-07-21 | Ventora Technologies Ag | Device for cleaning water wells |
EP2990593A1 (de) * | 2014-08-27 | 2016-03-02 | Welltec A/S | Drahtloses Bohrlochübertragungssystem |
CN105422047B (zh) * | 2015-10-16 | 2018-08-28 | 贵州航天凯山石油仪器有限公司 | 一种可切换除垢模式的全管除垢装置及全管除垢方法 |
CN106567690A (zh) * | 2016-10-31 | 2017-04-19 | 北京首光艾达科技有限公司 | 油田解腊设备及其频率控制方法 |
US20180363441A1 (en) * | 2017-06-19 | 2018-12-20 | Azra N. Tutuncu | Method and apparatus for improving wellbore productivity with piezoelectric crystals |
US20190120018A1 (en) * | 2017-10-23 | 2019-04-25 | Baker Hughes, A Ge Company, Llc | Scale impeding arrangement and method |
CN109538163B (zh) * | 2019-01-29 | 2023-05-16 | 吉林大学 | 一种超声波振动复合式洗井器及洗井方法 |
US10646028B1 (en) | 2019-03-12 | 2020-05-12 | Nathan Quang Huynh | Brush assemblies |
BE1027473B1 (nl) * | 2019-08-02 | 2021-03-01 | Harteel Bvpa | Werkwijze voor het voorkomen van biofilm en sedimentatie in waterbronnen |
CN112392435B (zh) * | 2020-11-17 | 2022-09-16 | 安徽省煤田地质局第一勘探队 | 一种超声波振动复合式洗井器及洗井方法 |
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US20030155153A1 (en) * | 2002-02-19 | 2003-08-21 | Peter Masak | Pressure reading tool |
US20030196816A1 (en) * | 2002-04-23 | 2003-10-23 | Baker Hughes Incorporated | Method for reduction of scale during oil and gas production and apparatus for practicing same |
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US3648769A (en) * | 1970-09-04 | 1972-03-14 | Beehler Vernon D | Well cleaner |
US4280557A (en) * | 1979-11-13 | 1981-07-28 | Bodine Albert G | Sonic apparatus for cleaning wells, pipe structures and the like |
US4682070A (en) * | 1984-07-30 | 1987-07-21 | Piezo Sona-Tool Corporation | Downhole oil well vibrating system |
-
2005
- 2005-06-02 US US11/143,795 patent/US20050269078A1/en not_active Abandoned
- 2005-06-03 WO PCT/US2005/019474 patent/WO2005120816A1/en not_active Application Discontinuation
- 2005-06-03 DE DE602005023855T patent/DE602005023855D1/de active Active
- 2005-06-03 AT AT05757243T patent/ATE483094T1/de not_active IP Right Cessation
- 2005-06-03 EP EP05757243A patent/EP1750930B1/de not_active Not-in-force
- 2005-06-03 CA CA2566653A patent/CA2566653C/en not_active Expired - Fee Related
-
2007
- 2007-01-02 NO NO20070029A patent/NO20070029L/no not_active Application Discontinuation
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US4518888A (en) * | 1982-12-27 | 1985-05-21 | Nl Industries, Inc. | Downhole apparatus for absorbing vibratory energy to generate electrical power |
US5595243A (en) * | 1994-07-29 | 1997-01-21 | Maki, Jr.; Voldi E. | Acoustic well cleaner |
US5676213A (en) * | 1996-04-10 | 1997-10-14 | Schlumberger Technology Corporation | Method and apparatus for removing mudcake from borehole walls |
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US6474349B1 (en) * | 1998-11-17 | 2002-11-05 | Hamdeen Limited | Ultrasonic cleanout tool and method of use thereof |
US20020070017A1 (en) * | 2000-12-07 | 2002-06-13 | Soliman Mohamed Y. | Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
US20030155153A1 (en) * | 2002-02-19 | 2003-08-21 | Peter Masak | Pressure reading tool |
US20030196816A1 (en) * | 2002-04-23 | 2003-10-23 | Baker Hughes Incorporated | Method for reduction of scale during oil and gas production and apparatus for practicing same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101328796B (zh) * | 2007-06-22 | 2011-08-24 | 汪必启 | 环保型防蜡防垢降粘器 |
WO2017076368A1 (zh) * | 2015-11-06 | 2017-05-11 | 汪必启 | 一种节能环保防蜡防垢超强降粘器 |
CN110942615A (zh) * | 2019-11-06 | 2020-03-31 | 长江大学 | 一种井下监测系统 |
CN110942615B (zh) * | 2019-11-06 | 2022-03-15 | 长江大学 | 一种井下监测系统 |
Also Published As
Publication number | Publication date |
---|---|
DE602005023855D1 (de) | 2010-11-11 |
ATE483094T1 (de) | 2010-10-15 |
CA2566653C (en) | 2013-01-15 |
EP1750930A1 (de) | 2007-02-14 |
EP1750930B1 (de) | 2010-09-29 |
US20050269078A1 (en) | 2005-12-08 |
CA2566653A1 (en) | 2005-12-22 |
NO20070029L (no) | 2007-03-01 |
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