US20140290351A1 - Magnetic Debris and Particle Detector - Google Patents
Magnetic Debris and Particle Detector Download PDFInfo
- Publication number
- US20140290351A1 US20140290351A1 US13/855,406 US201313855406A US2014290351A1 US 20140290351 A1 US20140290351 A1 US 20140290351A1 US 201313855406 A US201313855406 A US 201313855406A US 2014290351 A1 US2014290351 A1 US 2014290351A1
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- Prior art keywords
- oscillating member
- component
- oscillation
- wear
- parameter
- Prior art date
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- Abandoned
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- 239000002245 particle Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000010355 oscillation Effects 0.000 claims description 41
- 238000005259 measurement Methods 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 description 10
- 230000005284 excitation Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
- E21B12/02—Wear indicators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
Definitions
- the present disclosure relates to determining a wear on a component and, in particular, to determining wear from an effect on an oscillating member due to particles worn from the component and accumulated at the oscillating member.
- Many oil-filled systems include moving parts that experience wear. Over the course of time, particles are worn away from a surface of the moving parts and are carried away via a fluid surrounding the moving part. While the particles may clutter the system if left in the fluid, the amount of particles is related to the amount of wear that has been experienced by the moving part. Thus, determining accumulating the particles and determine their amount may be useful in determining a wear of the system. Understanding the wear of the system enables having a suitable maintenance schedule.
- the present disclosure provides a method of a determining wear on a component, the method including: receiving a particle freed from the component as a result of the wear on the component onto an oscillating member; measuring a change in a parameter of the oscillating member resulting from receiving the particle; and determining the wear on the component from the measured change in the parameter.
- the present disclosure provides an apparatus for determining wear on a component, the apparatus including: an oscillating member configured to receive a particle freed from the component as a result of the wear on the component; a measuring device configured to measure a change in a parameter of the oscillating member resulting from receiving the particle; and a processor configured to determine the wear on the component from the change in the parameter.
- the present disclosure provides a drilling system that includes: a component of a drill string; an oscillating member in the fluid passage configured to receive a particle freed from the component as a result of wear on the component; a measuring device configured to measure a change in a parameter of the oscillating member indicative of a change in mass resulting from receiving the particle at the oscillating member; and a processor configured to determine the wear on the component from the change in the parameter.
- FIG. 1 shows an exemplary drilling system suitable for employing an exemplary wear measurement device of the present disclosure
- FIG. 2 shows a detailed view of a section of the exemplary drilling system
- FIG. 3 shows a detailed view of the exemplary wear measurement device in one embodiment of the present disclosure
- FIG. 4 shows a detailed view of an active end of the exemplary wear measurement device of FIG. 3 in an exemplary embodiment
- FIG. 5 shows a detailed view of an active end of the wear measurement device of FIG. 3 in an alternate embodiment
- FIG. 6 shows a lateral vibrational mode produced at an active end of the wear measurement device in the alternate embodiment.
- FIG. 1 shows an exemplary drilling system 100 suitable for employing an exemplary wear measurement device 128 of the present disclosure.
- the exemplary drilling system 100 includes a derrick 102 and hook 104 supporting a drill string 110 disposed in a borehole 108 penetrating formation 106 .
- the drill string 110 includes a drill bit 112 at a bottom end.
- Pumps 114 circulate drilling fluid through a standpipe 116 and flexible hose 118 , down through an interior of the hollow drill string 110 to exit at the drill bit 112 .
- the drilling fluid is returned to the surface via an annular space 120 between the drill string 110 and a borehole wall 122 .
- the drill string 110 may include a bottomhole assembly 124 that may include various components 126 such as moving parts or parts that experience wear in the downhole environment of the borehole 108 .
- the drill string 110 may further include the exemplary wear measurement device 128 within a suitable proximity of the exemplary component 126 for measuring a parameter indicative of the wear on the component 126 .
- a processor 130 conveyed downhole by the drill string 110 may perform calculations on the parameters obtained at the exemplary wear measurement device 128 to determine wear on the component 126 .
- the processor 130 may be at a surface location and data measurements may be telemetered uphole for wear calculations.
- the component 126 and the wear measurement device 128 may be at any location along the drill string 110 .
- FIG. 2 shows a detailed view 200 of a section of the exemplary drilling system 100 .
- the exemplary system 200 includes a housing 202 that houses a component 204 that experience wear during operation of the drilling system 100 .
- a fluid 206 in the housing 202 flows in a direction indicated by flow arrow 208 from the component 204 towards an exemplary wear measurement device 210 of the present disclosure.
- the exemplary wear detection device 210 may be used with other devices, such as a downhole submersible pump, an oil-filled system, a gearbox, a hydraulic system, etc.
- various particles may be worn away or freed from a surface of the component. The particles are carried by the fluid 206 .
- the wear measurement device 210 is downstream of the component 204 and thus may receive or accumulate the particle. As described in further detail below, the reception of the particle at the wear measurement device 210 may change a parameter of the wear measurement device 210 . The change in the parameter may be measured in order to determine the presence of the particle at the wear measurement device 210 and thus the wear on the component 204 from which the particle is worn. In particular, a plurality of particles may be accumulated at the wear measurement device 210 over a selected time interval. Measurement of the change of the parameter of the wear measurement device 210 over the selected time interval may be used to determine the rate of wear on the component 204 .
- a control unit 220 may be coupled to the wear measurement device 210 .
- the exemplary control unit 220 may include a processor 222 , a memory location 224 for storing various data such as measurements and calculations performed by the processor 222 , and a set of programs 226 including instructions that may be used by the processor to determine a wear on the component 204 .
- the control unit may be further configured to actuate the wear measurement device 210 by directing a current through a coil 212 proximate the wear measurement device 210 .
- the control unit 220 may operate the coil 212 in one of an actuation mode and a pickup mode.
- An electrical measurement device 214 may also be coupled to the coil 212 to measure various electrical parameters such as current, voltage, etc. in a pickup mode of the coil.
- the various electrical parameters may be used to determine wear on the component using the processor 222 and the various programs 226 .
- the wear measurement device 210 may further include an electromagnet 216 that may be turned on and/or off in order to provide a magnetic field that disengages the particles from the wear measurement device 210 , thereby preparing a clean wear measurement device once a parameter of the wear measurement device 210 has been determined.
- FIG. 3 shows a detailed view of the exemplary wear measurement device 210 in an exemplary embodiment of the present disclosure.
- the wear measurement device 210 includes a fixture element 302 configured to couple the wear measurement device 210 to the housing ( 202 , FIG. 2 ).
- the fixture element 302 is coupled to one end of a decoupling stem 304 .
- An opposing end of the decoupling stem 304 is coupled to a base 306 .
- the base 306 supports a first tine 308 and a second tine 310 .
- a constrained end 308 a of the first tine 308 is coupled to the base 306
- a constrained end 310 a the second tine 310 is coupled to the base 306 .
- a free end 308 b of the first tine 308 includes a first magnetic field 312
- a free end 310 b of the second tine 310 includes a second magnetic field 314
- a first magnet 316 is secured to the free end 308 b of the first tine 308 in order to provide the first magnetic field 312
- a second magnet 318 is secured to the free end 310 b of the second tine 310 in order to provide the second magnetic field 314 .
- the first magnet 316 and the second magnet 318 may be permanent magnets.
- the first magnetic field 312 is substantially perpendicular to a longitudinal axis 320 of the first time 308 .
- the second magnetic field 314 is substantially perpendicular to a longitudinal axis 322 of the second tine 310 .
- the first magnetic field 312 and the second magnetic field 314 have anti-parallel orientations.
- the first magnetic field 312 may be directed toward the free end 310 b of the second tine 310 and the second magnetic field 314 may be directed toward the free end 308 b of the first tine 308 , as shown in FIG. 4 .
- the first magnetic field 312 may be directed away from the second free end 310 b and the second magnetic field 314 may be directed away from the first free end 308 b.
- orientations of the first magnetic field 312 and the second magnetic field 314 are such that an external magnetic field interacts with the first magnetic field 312 and the second magnetic field 314 to produce opposing oscillations on the first tine 308 and the second tine 310 , as discussed below.
- FIG. 4 shows a detailed view of an active end 400 of the exemplary wear measurement device 210 in an exemplary embodiment.
- the active end 400 includes the free end 308 b of the first tine 308 and the free end 310 b of the second tine 310 as well as one or more coils 402 a and 402 b disposed at a selected location with respect to the first and second free ends 308 b and 310 b so as to have a magnetic interaction with the first and second free ends 308 b and 310 b.
- the exemplary coils 402 a and 402 b are disposed on opposite sides of a plane substantially defined by the first tine 308 and the second tine 310 .
- Each of the one or more coils 402 a and 402 b are oriented so as to induce a magnetic field 404 directed substantially normal to the plane when a current is conducted through the one or more coils 402 a and 402 b.
- the one or more coils 402 a and 402 b may be used as both excitation coils and pickup coils.
- As an excitation coil a current is conducted through the one or more coils 402 a and 402 b in order to induce magnetic field 404 .
- an alternating current in the one or more coils 402 a and 402 b induces an oscillating magnetic field 404 .
- the magnetic fields 312 and 314 rotate to align with the induced magnetic field 404 . Therefore, for the configuration shown in FIG. 4 , the first magnetic field 312 rotates in a counter-clockwise direction as indicated by rotational arrow 412 , thereby causes a counter-clockwise rotation of the free end 308 b of the first tine 308 .
- the second magnetic field 314 being anti-parallel to the first magnetic field 312 , rotates in a clockwise direction as indicated by rotational arrow 414 , thereby causes a clockwise rotation of the free end 310 b of the second tine 310 .
- an alternating current in the one or more coils 402 a and 403 b produces torsional oscillations of the first and second tines 308 and 310 .
- the oscillations occur at an eigenfrequency that is determined in part by the mass of the first and second tines 308 and 310 .
- the eigenfrequency therefore changes when the mass of the first and second times 308 and 310 increases due to the accumulation of particles.
- the amplitude and frequency of the torsional oscillations may be controlled by controlling the frequency and amplitude of the current in the one or more coils 402 a and 402 b.
- the one or more coils 402 a and 402 b may be used to measure a parameter of the oscillation of the tines 308 and 310 , such as a frequency, amplitude, phase and/or damping of the oscillations.
- the oscillation of the first magnetic field 312 and the second magnetic field 314 induce a current in the one or more coils 402 a and 402 b.
- An electrical measuring device ( 214 , FIG. 1 ) is coupled to the one more coils 402 a and 402 b to measure an electrical property of the one or more coils 402 a and 402 b, such as a current in the one or more coils 402 a and 402 b or a voltage corresponding to the induced current.
- FIG. 5 shows a detailed view of an active end 500 of the wear measurement device in an alternate embodiment.
- Coil 502 is disposed with respect to the first and second tines so that a current in the coils induces a magnetic field 504 that is oriented substantially along a longitudinal axis of the first tine and/or the second tine.
- the free end 308 b of the first tine 308 is shown for illustrative purposes only.
- Current in coil 502 induces magnetic field 504 .
- Magnetic field 312 is perpendicular to the induced field 504 and attempts to orient itself along the induced field 504 . This tendency of the magnetic field 312 to align with the induced field 504 produces a rotation 508 about a torque vector 510 that is orthogonal to both the direction of the induced field 504 and the direction of the magnetic field 312 .
- FIG. 6 shows a lateral mode produced at an active end of the wear measurement device in the alternate embodiment.
- First tine 308 undergoes a rotation as indicated by rotational arrow 508 .
- the direction of the magnetic field 314 is anti-parallel to the direction of the magnetic field 312 of the first tine 308 . Therefore, the direction of rotation of the second tine 310 is opposite the direction of rotation of the first tine, as shown by rotational arrow 512 . Therefore, the first and second tines 308 and 310 undergo a lateral oscillation within the plane of the first and second tines 308 and 310 .
- a particle is received at one of the magnets 316 and 318 , thereby altering an oscillation parameter of the first and second tines 308 and 310 , such as a frequency of oscillation and/or an amplitude of oscillation.
- an oscillation parameter of the first and second tines 308 and 310 such as a frequency of oscillation and/or an amplitude of oscillation.
- increase the mass while maintaining the same excitation decrease the frequency of oscillation of the first and second tines 308 and 310 as well as decrease the amplitude of oscillation of the first and second tines 308 and 310 .
- the alteration in the oscillation parameter at the coil 212 by an electrical measurement device 214 which may measure a change in frequency and/or magnitude from current flowing through the coil 212 .
- the determined change in the oscillation parameter may therefore be used to determine an amount or mass of particles accumulated at the tines 308 and 310 and therefore and amount of mass lost or worn away from the component 204 .
- This determined lost mass may provide a determination of the wear on the component.
- the change in the oscillation parameter may be measured over a selected time interval over which a plurality of particles are accumulated at the magnets 316 and 318 The change in the oscillation parameter over the selected time interval may then determine a rate of wear of the component 204 .
- the wear measurement device 210 may be removed from the housing 202 to remove the particles accumulated at the magnets from the fluid. Therefore, the wear measurement device 210 also may be used to keep the fluid 206 clean from wear particles and magnetic debris.
Abstract
A system, method and apparatus for determining wear on a component of a tool is disclosed. An oscillating member receives a particle freed from the component as a result of the wear on the component. A measuring device measures a change in a parameter of the oscillating member resulting from receiving the particle. A processor determines the wear on the component from the change in the parameter. In one embodiment, the component may include a component of a downhole tool.
Description
- 1. Field of the Disclosure
- The present disclosure relates to determining a wear on a component and, in particular, to determining wear from an effect on an oscillating member due to particles worn from the component and accumulated at the oscillating member.
- 2. Description of the Related Art
- Many oil-filled systems include moving parts that experience wear. Over the course of time, particles are worn away from a surface of the moving parts and are carried away via a fluid surrounding the moving part. While the particles may clutter the system if left in the fluid, the amount of particles is related to the amount of wear that has been experienced by the moving part. Thus, determining accumulating the particles and determine their amount may be useful in determining a wear of the system. Understanding the wear of the system enables having a suitable maintenance schedule.
- In one aspect, the present disclosure provides a method of a determining wear on a component, the method including: receiving a particle freed from the component as a result of the wear on the component onto an oscillating member; measuring a change in a parameter of the oscillating member resulting from receiving the particle; and determining the wear on the component from the measured change in the parameter.
- In another aspect the present disclosure provides an apparatus for determining wear on a component, the apparatus including: an oscillating member configured to receive a particle freed from the component as a result of the wear on the component; a measuring device configured to measure a change in a parameter of the oscillating member resulting from receiving the particle; and a processor configured to determine the wear on the component from the change in the parameter.
- In another aspect, the present disclosure provides a drilling system that includes: a component of a drill string; an oscillating member in the fluid passage configured to receive a particle freed from the component as a result of wear on the component; a measuring device configured to measure a change in a parameter of the oscillating member indicative of a change in mass resulting from receiving the particle at the oscillating member; and a processor configured to determine the wear on the component from the change in the parameter.
- Examples of certain features of the apparatus and method disclosed herein are summarized rather broadly in order that the detailed description thereof that follows may be better understood. There are, of course, additional features of the apparatus and method disclosed hereinafter that will form the subject of the claims.
- For detailed understanding of the present disclosure, references should be made to the following detailed description of the exemplary embodiment, taken in conjunction with the accompanying drawings, in which like elements have been given like numerals and wherein:
-
FIG. 1 shows an exemplary drilling system suitable for employing an exemplary wear measurement device of the present disclosure; -
FIG. 2 shows a detailed view of a section of the exemplary drilling system; -
FIG. 3 shows a detailed view of the exemplary wear measurement device in one embodiment of the present disclosure; -
FIG. 4 shows a detailed view of an active end of the exemplary wear measurement device ofFIG. 3 in an exemplary embodiment; -
FIG. 5 shows a detailed view of an active end of the wear measurement device ofFIG. 3 in an alternate embodiment; and -
FIG. 6 shows a lateral vibrational mode produced at an active end of the wear measurement device in the alternate embodiment. -
FIG. 1 shows anexemplary drilling system 100 suitable for employing an exemplarywear measurement device 128 of the present disclosure. Theexemplary drilling system 100 includes aderrick 102 andhook 104 supporting adrill string 110 disposed in aborehole 108 penetratingformation 106. Thedrill string 110 includes adrill bit 112 at a bottom end.Pumps 114 circulate drilling fluid through astandpipe 116 andflexible hose 118, down through an interior of thehollow drill string 110 to exit at thedrill bit 112. The drilling fluid is returned to the surface via anannular space 120 between thedrill string 110 and aborehole wall 122. Thedrill string 110 may include abottomhole assembly 124 that may includevarious components 126 such as moving parts or parts that experience wear in the downhole environment of theborehole 108. Thedrill string 110 may further include the exemplarywear measurement device 128 within a suitable proximity of theexemplary component 126 for measuring a parameter indicative of the wear on thecomponent 126. Aprocessor 130 conveyed downhole by thedrill string 110 may perform calculations on the parameters obtained at the exemplarywear measurement device 128 to determine wear on thecomponent 126. Alternatively, theprocessor 130 may be at a surface location and data measurements may be telemetered uphole for wear calculations. In alternate embodiments, thecomponent 126 and thewear measurement device 128 may be at any location along thedrill string 110. -
FIG. 2 shows adetailed view 200 of a section of theexemplary drilling system 100. Theexemplary system 200 includes ahousing 202 that houses acomponent 204 that experience wear during operation of thedrilling system 100. Afluid 206 in thehousing 202 flows in a direction indicated byflow arrow 208 from thecomponent 204 towards an exemplarywear measurement device 210 of the present disclosure. Although discussed herein with respect to a drilling system, the exemplarywear detection device 210 may be used with other devices, such as a downhole submersible pump, an oil-filled system, a gearbox, a hydraulic system, etc. As a result of wear on thecomponent 204, various particles may be worn away or freed from a surface of the component. The particles are carried by thefluid 206. Thewear measurement device 210 is downstream of thecomponent 204 and thus may receive or accumulate the particle. As described in further detail below, the reception of the particle at thewear measurement device 210 may change a parameter of thewear measurement device 210. The change in the parameter may be measured in order to determine the presence of the particle at thewear measurement device 210 and thus the wear on thecomponent 204 from which the particle is worn. In particular, a plurality of particles may be accumulated at thewear measurement device 210 over a selected time interval. Measurement of the change of the parameter of thewear measurement device 210 over the selected time interval may be used to determine the rate of wear on thecomponent 204. - A
control unit 220 may be coupled to thewear measurement device 210. Theexemplary control unit 220 may include aprocessor 222, amemory location 224 for storing various data such as measurements and calculations performed by theprocessor 222, and a set ofprograms 226 including instructions that may be used by the processor to determine a wear on thecomponent 204. The control unit may be further configured to actuate thewear measurement device 210 by directing a current through acoil 212 proximate thewear measurement device 210. In addition, thecontrol unit 220 may operate thecoil 212 in one of an actuation mode and a pickup mode. Anelectrical measurement device 214 may also be coupled to thecoil 212 to measure various electrical parameters such as current, voltage, etc. in a pickup mode of the coil. The various electrical parameters may be used to determine wear on the component using theprocessor 222 and thevarious programs 226. Additionally, thewear measurement device 210 may further include anelectromagnet 216 that may be turned on and/or off in order to provide a magnetic field that disengages the particles from thewear measurement device 210, thereby preparing a clean wear measurement device once a parameter of thewear measurement device 210 has been determined. -
FIG. 3 shows a detailed view of the exemplarywear measurement device 210 in an exemplary embodiment of the present disclosure. Thewear measurement device 210 includes afixture element 302 configured to couple thewear measurement device 210 to the housing (202,FIG. 2 ). Thefixture element 302 is coupled to one end of a decoupling stem 304. An opposing end of the decoupling stem 304 is coupled to abase 306. Thebase 306 supports afirst tine 308 and asecond tine 310. Aconstrained end 308 a of thefirst tine 308 is coupled to thebase 306, and aconstrained end 310 a thesecond tine 310 is coupled to thebase 306. Afree end 308 b of thefirst tine 308 includes a firstmagnetic field 312, and afree end 310 b of thesecond tine 310 includes a secondmagnetic field 314. In an exemplary embodiment, afirst magnet 316 is secured to thefree end 308 b of thefirst tine 308 in order to provide the firstmagnetic field 312, and asecond magnet 318 is secured to thefree end 310 b of thesecond tine 310 in order to provide the secondmagnetic field 314. Thefirst magnet 316 and thesecond magnet 318 may be permanent magnets. The firstmagnetic field 312 is substantially perpendicular to alongitudinal axis 320 of thefirst time 308. The secondmagnetic field 314 is substantially perpendicular to alongitudinal axis 322 of thesecond tine 310. In an exemplary embodiment, the firstmagnetic field 312 and the secondmagnetic field 314 have anti-parallel orientations. In one embodiment, the firstmagnetic field 312 may be directed toward thefree end 310 b of thesecond tine 310 and the secondmagnetic field 314 may be directed toward thefree end 308 b of thefirst tine 308, as shown inFIG. 4 . In an alternate embodiment, the firstmagnetic field 312 may be directed away from the secondfree end 310 b and the secondmagnetic field 314 may be directed away from the firstfree end 308 b. In general, the orientations of the firstmagnetic field 312 and the secondmagnetic field 314 are such that an external magnetic field interacts with the firstmagnetic field 312 and the secondmagnetic field 314 to produce opposing oscillations on thefirst tine 308 and thesecond tine 310, as discussed below. -
FIG. 4 shows a detailed view of an active end 400 of the exemplarywear measurement device 210 in an exemplary embodiment. The active end 400 includes thefree end 308 b of thefirst tine 308 and thefree end 310 b of thesecond tine 310 as well as one ormore coils exemplary coils first tine 308 and thesecond tine 310. Each of the one ormore coils magnetic field 404 directed substantially normal to the plane when a current is conducted through the one ormore coils more coils more coils magnetic field 404. In particular, an alternating current in the one ormore coils magnetic field 404. As a pickup coil, changes in the magnetic field due to vibration of the first andsecond tines coils second tines - When exposed to the induced
magnetic field 404 of thecoils magnetic fields magnetic field 404. Therefore, for the configuration shown inFIG. 4 , the firstmagnetic field 312 rotates in a counter-clockwise direction as indicated byrotational arrow 412, thereby causes a counter-clockwise rotation of thefree end 308 b of thefirst tine 308. The secondmagnetic field 314, being anti-parallel to the firstmagnetic field 312, rotates in a clockwise direction as indicated byrotational arrow 414, thereby causes a clockwise rotation of thefree end 310 b of thesecond tine 310. When the current in the coil is reversed, the direction of the inducedmagnetic field 404 is also reversed, thereby causing a clockwise rotation of thefree end 308 b of thefirst tine 308 and a counter-clockwise rotation of thefree end 310 b of thesecond time 310. Therefore, an alternating current in the one ormore coils 402 a and 403 b produces torsional oscillations of the first andsecond tines second tines second times more coils - When operated in the pickup mode, the one or
more coils tines magnetic field 312 and the secondmagnetic field 314 induce a current in the one ormore coils FIG. 1 ) is coupled to the onemore coils more coils more coils -
FIG. 5 shows a detailed view of anactive end 500 of the wear measurement device in an alternate embodiment.Coil 502 is disposed with respect to the first and second tines so that a current in the coils induces amagnetic field 504 that is oriented substantially along a longitudinal axis of the first tine and/or the second tine. Thefree end 308 b of thefirst tine 308 is shown for illustrative purposes only. Current incoil 502 inducesmagnetic field 504.Magnetic field 312 is perpendicular to the inducedfield 504 and attempts to orient itself along the inducedfield 504. This tendency of themagnetic field 312 to align with the inducedfield 504 produces arotation 508 about atorque vector 510 that is orthogonal to both the direction of the inducedfield 504 and the direction of themagnetic field 312. -
FIG. 6 shows a lateral mode produced at an active end of the wear measurement device in the alternate embodiment.First tine 308 undergoes a rotation as indicated byrotational arrow 508. Forsecond tine 310, the direction of themagnetic field 314 is anti-parallel to the direction of themagnetic field 312 of thefirst tine 308. Therefore, the direction of rotation of thesecond tine 310 is opposite the direction of rotation of the first tine, as shown byrotational arrow 512. Therefore, the first andsecond tines second tines - Referring back to
FIGS. 2 and 3 , in operating thewear measurement device 210, a particle is received at one of themagnets second tines second tines second tines coil 212 by anelectrical measurement device 214 which may measure a change in frequency and/or magnitude from current flowing through thecoil 212. The determined change in the oscillation parameter may therefore be used to determine an amount or mass of particles accumulated at thetines component 204. This determined lost mass may provide a determination of the wear on the component. Additionally, the change in the oscillation parameter may be measured over a selected time interval over which a plurality of particles are accumulated at themagnets component 204. - In another aspect of the present disclosure, the
wear measurement device 210 may be removed from thehousing 202 to remove the particles accumulated at the magnets from the fluid. Therefore, thewear measurement device 210 also may be used to keep the fluid 206 clean from wear particles and magnetic debris. - While the foregoing disclosure is directed to the preferred embodiments of the disclosure, various modifications will be apparent to those skilled in the art. It is intended that all variations within the scope and spirit of the appended claims be embraced by the foregoing disclosure.
Claims (20)
1. A method of a determining wear on a component, comprising:
receiving a particle freed from the component as a result of the wear on the component onto an oscillating member;
measuring a change in a parameter of the oscillating member resulting from receiving the particle; and
determining the wear on the component from the measured change in the parameter.
2. The method of claim 1 further comprising receiving a plurality of particles over a selected time interval; and measuring the change in the parameter over the selected time interval to determine a rate of wear on the component.
3. The method of claim 1 , wherein the parameter is at least one of: (i) a frequency of oscillation of the oscillating member; (ii) an amplitude of oscillation of the oscillating member; (iii) a phase of the oscillation; and (iv) an oscillation damping.
4. The method of claim 1 , wherein the oscillating member performs at least one of: (i) a torsional oscillation; and (ii) a lateral oscillation.
5. The method of claim 1 further comprising receiving the particle on a tuning fork comprising a first tine having a constrained end coupled to a base and a first free end opposed to the constrained end, the first free end having a magnetic field; and a second tine having a constrained end coupled to the base and a second free end opposed to the constrained end, the second free end having a magnetic field.
6. The method of claim 1 , wherein the oscillating member is disposed in a fluid transporting the particle freed from the component
7. The method of claim 1 further comprising observing the change in the parameter via observing a current induced in a coil by the oscillating member.
8. An apparatus for determining wear of a component, comprising:
an oscillating member configured to receive a particle freed from the component as a result of the wear on the component;
a measuring device configured to measure a change in a parameter of the oscillating member resulting from receiving the particle; and
a processor configured to determine the wear of the component from the change in the parameter.
9. The apparatus of claim 8 , wherein the oscillating member is further configured to receive a plurality of particles over a selected time interval; and wherein the processor is further configured to measure the change in the parameter over the selected time interval to determine a rate of wear of the component.
10. The apparatus of claim 8 , wherein the parameter is at least one of: (i) a frequency of oscillation of the oscillating member; (ii) an amplitude of oscillation of the oscillating member;
(iii) a phase of the oscillation; and (iv) an oscillation damping.
11. The apparatus of claim 8 , wherein the oscillation is at least one of: (i) a torsional oscillation; and (ii) a lateral oscillation.
12. The apparatus of claim 8 , wherein the oscillating member further comprises a tuning fork including:
a base,
a first tine having a constrained end coupled to the base and a first free end opposed to the constrained end, the first free end having a permanent magnet providing a magnetic field, and
a second tine having a constrained end coupled to the base and a second free end opposed to the constrained end, the second free end having a permanent magnet providing a magnetic field;
wherein the particle is received at one of the first free end and the second free end.
13. The apparatus of claim 12 , wherein the magnetic field of the first tine and the magnetic field of the second tine are perpendicular to a magnetic field produced by a coil to actuate an oscillation of the first and second tines.
14. The apparatus of claim 8 , wherein the wear measurement device further includes an electromagnet configured to disengage particles accumulated at the oscillating member.
15. The apparatus of claim 8 , wherein the measuring device is further configured to measure a voltage induced in a coil by the oscillating member to determine the parameter of the oscillating member.
16. A downhole tool, comprising:
a component susceptible to wear during operation of the tool downhole;
an oscillating member in a fluid passage configured to receive a particle freed from the component as a result of wear on the component;
a measuring device configured to measure a change in a parameter of the oscillating member indicative of a change in mass resulting from receiving the particle at the oscillating member; and
a processor configured to determine the wear of the component from the change in the parameter.
17. The downhole tool of claim 16 , wherein the oscillating member is further configured to receive a plurality of particles over a selected time interval; and the processor is further configured to measure the change in the parameter over the selected time interval to determine a rate of wear of the component from the change in the parameter over the selected time interval.
18. The downhole tool of claim 16 , wherein the parameter is at least one of: (i) a frequency of oscillation of the oscillating member; (ii) an amplitude of oscillation of the oscillating member; (iii) a phase of the oscillation; and (iv) an oscillation damping.
19. The downhole tool of claim 16 , wherein the oscillating member further comprises a tuning fork including:
a base;
a first tine having a constrained end coupled to the base and a first free end opposed to the constrained end, the first free end having a magnetic field; and
a second tine having a constrained end coupled to the stem and a second free end opposed to the constrained end, the second free end having a magnetic field;
wherein the particle is received at one of the first free end and the second free end.
20. The downhole tool of claim 19 further comprising a coil configured to induce a magnetic field in a direction substantially perpendicular to a direction of the first and second magnetic fields; and generate a current in response to oscillation of the first and second magnetic fields.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/855,406 US20140290351A1 (en) | 2013-04-02 | 2013-04-02 | Magnetic Debris and Particle Detector |
PCT/US2014/032629 WO2014165568A1 (en) | 2013-04-02 | 2014-04-02 | Magnetic debris and particle detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/855,406 US20140290351A1 (en) | 2013-04-02 | 2013-04-02 | Magnetic Debris and Particle Detector |
Publications (1)
Publication Number | Publication Date |
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US20140290351A1 true US20140290351A1 (en) | 2014-10-02 |
Family
ID=51619488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/855,406 Abandoned US20140290351A1 (en) | 2013-04-02 | 2013-04-02 | Magnetic Debris and Particle Detector |
Country Status (2)
Country | Link |
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US (1) | US20140290351A1 (en) |
WO (1) | WO2014165568A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230012069A1 (en) * | 2021-07-06 | 2023-01-12 | Baker Hughes Oilfield Operations Llc | Erosion prediction for downhole tools |
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US1909414A (en) * | 1928-06-16 | 1933-05-16 | American Telephone & Telegraph | Tuning fork generator |
US4501660A (en) * | 1983-02-25 | 1985-02-26 | Alfred Hebert | Oil filter |
US5214279A (en) * | 1990-07-26 | 1993-05-25 | Fuji Photo Film Co., Ltd. | Scanning microscope and tuning fork scanning mechanism for varying the width over which a sample is scanned |
US5969235A (en) * | 1998-07-02 | 1999-10-19 | Nalco Chemical Company | System and method for measuring scale deposition including a tuning fork for use in the system and the method |
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US7010978B1 (en) * | 1999-06-08 | 2006-03-14 | Optiscan Pty Ltd. | Electrically operated tuning fork |
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US7421892B2 (en) * | 2005-03-29 | 2008-09-09 | Baker Hughes Incorporated | Method and apparatus for estimating a property of a downhole fluid using a coated resonator |
US7681449B2 (en) * | 2006-02-28 | 2010-03-23 | Exxonmobil Research And Engineering Company | Metal loss rate sensor and measurement using a mechanical oscillator |
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CA1223053A (en) * | 1983-10-17 | 1987-06-16 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Ferromagnetic wear detector |
JPH0611376A (en) * | 1992-06-26 | 1994-01-21 | Komatsu Ltd | Detecting device for quantity of metal powder in hydraulic circuit |
US5608315A (en) * | 1995-08-21 | 1997-03-04 | Caterpillar Inc. | Apparatus for detecting particles in a fluid and a method for operating same |
US5790246A (en) * | 1996-04-18 | 1998-08-04 | Montores Pty. Ltd. | Apparatus and network for determining a parameter of a particle in a fluid employing detector and processor |
US6255954B1 (en) * | 1999-01-29 | 2001-07-03 | Reid Asset Management Company | Detection of wear-particles and other impurities in industrial or other fluids |
-
2013
- 2013-04-02 US US13/855,406 patent/US20140290351A1/en not_active Abandoned
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2014
- 2014-04-02 WO PCT/US2014/032629 patent/WO2014165568A1/en active Application Filing
Patent Citations (9)
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US1909414A (en) * | 1928-06-16 | 1933-05-16 | American Telephone & Telegraph | Tuning fork generator |
US4501660A (en) * | 1983-02-25 | 1985-02-26 | Alfred Hebert | Oil filter |
US5214279A (en) * | 1990-07-26 | 1993-05-25 | Fuji Photo Film Co., Ltd. | Scanning microscope and tuning fork scanning mechanism for varying the width over which a sample is scanned |
US5969235A (en) * | 1998-07-02 | 1999-10-19 | Nalco Chemical Company | System and method for measuring scale deposition including a tuning fork for use in the system and the method |
US7010978B1 (en) * | 1999-06-08 | 2006-03-14 | Optiscan Pty Ltd. | Electrically operated tuning fork |
US6928877B2 (en) * | 2002-05-24 | 2005-08-16 | Symyx Technologies, Inc. | High throughput microbalance and methods of using same |
US7421892B2 (en) * | 2005-03-29 | 2008-09-09 | Baker Hughes Incorporated | Method and apparatus for estimating a property of a downhole fluid using a coated resonator |
US7681449B2 (en) * | 2006-02-28 | 2010-03-23 | Exxonmobil Research And Engineering Company | Metal loss rate sensor and measurement using a mechanical oscillator |
US20070296410A1 (en) * | 2006-06-26 | 2007-12-27 | Girsh Elias Blumberg | Tuning fork magnetometer |
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US20230012069A1 (en) * | 2021-07-06 | 2023-01-12 | Baker Hughes Oilfield Operations Llc | Erosion prediction for downhole tools |
Also Published As
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WO2014165568A1 (en) | 2014-10-09 |
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Owner name: BAKER HUGHES INCORPORATED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KRUSPE, THOMAS;REEL/FRAME:030159/0138 Effective date: 20130404 |
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