CN104453846A - Composite transmission nipple of sonic logging tool - Google Patents
Composite transmission nipple of sonic logging tool Download PDFInfo
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- CN104453846A CN104453846A CN201310417141.9A CN201310417141A CN104453846A CN 104453846 A CN104453846 A CN 104453846A CN 201310417141 A CN201310417141 A CN 201310417141A CN 104453846 A CN104453846 A CN 104453846A
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- 210000002445 nipple Anatomy 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 title abstract 6
- 239000002131 composite material Substances 0.000 title abstract 3
- 239000013078 crystal Substances 0.000 claims abstract description 105
- 239000002184 metal Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 20
- 238000009413 insulation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
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- 238000001514 detection method Methods 0.000 description 2
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- 210000000452 mid-foot Anatomy 0.000 description 1
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
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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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
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- Acoustics & Sound (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to a composite transmission nipple of a sonic logging tool. The composite transmission nipple comprises a mandrel portion, a sound transmission cover and support portion, a transmitting crystal portion and a transformer portion, all the sound transmission cover and support portion, the transmitting crystal portion and the transformer portion are mounted on the mandrel portion, both the transmitting crystal portion and the transformer portion are disposed in the sound transmission cover and support portion, and the transmitting crystal portion is adjacent to the transformer portion.
Description
Technical field
The present invention relates to a kind of composed emission pipe nipple of acoustic logging instrument.
Background technology
Acoustic logging is that the acoustic characteristic by measuring borehole wall medium studies the geological characteristics on borehole wall stratum and a class logging method of well engineering situation, and it is widely used at oil field prospecting and many fields such as exploitation, engineering geophysics.The general principle of acoustic logging is: when sound wave is propagated in different medium, and its spread speed has very large difference, and the acoustic characteristic such as its amplitude fading, change of frequency is also different.Modern logging technique is just by measuring the above-mentioned several parameters,acoustic in stratum and wellhole, and in conjunction with other logging methods such as electrical method and radioactivity, estimate the character of near-borehole formation, as the thickness, degree of porosity, oil saturation, water saturation, gas saturation, permeability etc. on stratum.In addition, Sonic Logging Data analytically ply stress can also be utilized, detection formation fracture, the cementing state in detection thimble well, evaluating cementing quality etc.
The instrument that acoustic logging uses has many different kinds, and their common feature to transmit and receive sound wave.Different instruments transmits and receives dissimilar sound wave, thus reaches different testing goals.Modern age, acoustic logging development was very fast, and acoustic logging conventional at present mainly contains following several method: sonic log, Acoustic Amplitude Log, long space Acoustic full waveform logging harmony imaging logging.
Sound wave is a kind of forms of motion produced by the mechanical oscillation of material, vibration from the close-by examples to those far off is transmitted and propagated by the interaction of particle in material.The sound wave frequency that people's ear can be heard is between 20 Hz to 20 kHz.Lower than the mechanical wave of 20 Hz infrasound, higher than the mechanical wave of 20 kHz ultrasonic wave.At present, the frequency of acoustic logging application, between 15 kHz to 30 kHz, is therefore referred to as sound wave usually.Because sound wave is that elastic body is subject to External Force Acting to produce elastic deformation to produce, thus the elasticity of speed, frequency, amplitude and object propagated in material of sound wave and elasticity mechanics parameter closely related.
In recent years, along with going deep into of geology and oil exploration, to the expectation of logger with require also more and more higher, acoustic logging is one of important method of oil well logging.The acoustic logging of current employing utilizes transmitting transducer to send sound wave in down-hole, propagates in underground medium, and after certain hour decay, received receive MUT, by judging the relevant geologic structure of underground to the acoustic signals analysis of decay.
Existing a lot of acoustic wave apparatus wraps up crystal with leather bag, and as pressure balanced medium, instrument there will be liquefied gas by the situation in rubber molecule gap infiltration instrument when underground work, after instrument goes out well, LNG gasifaction can cause leather bag to expand, leather bag is damaged time serious, thus the part of damage instrument probe inside.
Summary of the invention
The composed emission pipe nipple of acoustic logging instrument is the sound source initiation part of well logging sound wave instrument, and the quality of its structure directly has influence on performance and the precision of acoustic logging instrument.The invention provides a kind of composed emission pipe nipple with the acoustic logging instrument of unique texture, it comprises arbor portions, entrant sound cover and support section, transmitting crystal part and transformer portion, wherein, described entrant sound cover and support section, described transmitting crystal part and described transformer portion are all installed on described arbor portions, described transmitting crystal part and described transformer portion are all disposed in described entrant sound cover and support section, make described transmitting crystal part be adjacent to described transformer portion.
Preferably, described entrant sound cover and support section comprise launches cover, and described transmitting crystal part is placed in described transmitting cover, and described transmitting cover is made of metal.
Preferably, described cover of launching has the wall thickness locally reduced, and reduces sound wave in the decay through launching when covering.
Preferably, described composed emission pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described second transmitting crystal part and the second transformer portion are arranged about the axial midpoint specular of described composed emission pipe nipple with described transmitting crystal part and transformer portion respectively.
Preferably, described arbor portions comprises emission shaft and launches mandrel, described emission shaft is sleeved in described transmitting mandrel, and mandrel supports nonmetallic ring and is interposed between described emission shaft and described transmitting mandrel, makes to form inner chamber between mandrel between described emission shaft and described transmitting mandrel.
Preferably, described emission shaft comprises main locating hole, main shaft oil string holes and auxiliary positioning hole, described transmitting mandrel comprises main dowel hole, mandrel oil string holes and mandrel auxiliary positioning hole, and wherein, when described emission shaft is sleeved in described transmitting mandrel, described main locating hole aligns with described main dowel hole, and described main shaft oil string holes is alignd with described mandrel oil string holes, and aligns with described mandrel auxiliary positioning hole in described auxiliary positioning hole.
Preferably, described transformer portion comprises transformer insulated holder, launch transformer, launch transformer insulated pad, launch bearing clip plate, thrust washer, launch bearing outer plate, launch locking screw ring and check ring, wherein, described transformer insulated holder and the transformer insulated pad of described transmitting lay respectively at the axial both sides of described transmitting transformer, described transformer insulated holder and the transformer insulated pad of described transmitting are manufactured by insulation materials respectively, and wherein, described transmitting bearing clip plate, described thrust washer, described transmitting bearing outer plate, described transmitting locking screw ring, described check ring is installed successively vertically, the transformer portion fixed card slot of described check ring and described transmitting mandrel matches, make described transformer portion axial location.
Preferably, described transmitting locking screw is equipped with external screw thread, and the internal thread of the transmitting cover support ring of described external screw thread and described entrant sound cover and support section engages.
Preferably, described transmitting crystal part comprises transmitting crystal, and described transmitting crystal is made up of piezoelectric ceramics or piezoelectric quartz.
The composed emission pipe nipple metal shell of acoustic logging instrument of the present invention replaces leather bag parcel crystal, uses piston instead as pressure equaliser simultaneously, solves the problem of liquefied gas infiltration with this.Transmitting pipe nipple of the present invention is made in a pipe nipple transmitting crystal and transmitting transformer simultaneously, make close to transformer tries one's best from transmitting crystal like this, shorten the line length of launching transformer and powering to transmitting crystal, the high pressure produced when so just can reduce power supply is on the impact of instrument signal as far as possible.
Accompanying drawing explanation
Also consider accompanying drawing by referring to detailed description of the invention and claim simultaneously, more complete understanding can be had, in accompanying drawing to the present invention:
Fig. 1 is the schematic diagram of acoustical well-logging devices;
Fig. 2 is the schematic distribution map according to array acoustic well logger device composed emission pipe nipple of the present invention;
Fig. 3 is the schematic diagram according to array acoustic well logger device composed emission pipe nipple of the present invention;
Fig. 4 is the schematic diagram according to emission shaft of the present invention;
Fig. 5 is the schematic diagram according to transmitting mandrel of the present invention;
Fig. 6 is the schematic assembly drawing according to arbor portions of the present invention;
Fig. 7 A is the schematic assembly drawing according to transmitting crystal part of the present invention;
Fig. 7 B is the schematic diagram that Crystal-support according to the present invention overlaps;
Fig. 7 C is the schematic diagram according to transmitting crystal seat of the present invention;
Fig. 8 A is the schematic assembly drawing according to transformer portion of the present invention;
Fig. 8 B is the schematic diagram of the transformer insulated pad of transmitting according to the present invention;
Fig. 8 C is the schematic diagram according to transmitting locking screw ring of the present invention;
Fig. 9 A is the schematic assembly drawing according to entrant sound cover of the present invention and support section;
Fig. 9 B is according to the schematic diagram launching cover of the present invention;
Fig. 9 C is the schematic diagram according to transmitting cover support ring of the present invention; And
Fig. 9 D is the schematic diagram according to transmitting seal cover of the present invention.
Wherein: sonic probe 11, pinger 12, acoustic receiver 13, the borehole wall 14, probing shell 21, sound wave composed emission pipe nipple 22, sound wave composed emission pipe nipple axial midpoint 23, acoustic emission window 24, acoustic receiver window 25, arbor portions 301, entrant sound cover and support section 302, transmitting crystal part 303, transformer portion 304, mandrel chamber 305, launch cover inner chamber 306, crystal inner chamber 307, transformer inner chamber 308, first launches cover supports inner chamber 309, second launches cover supports inner chamber 310, inner chamber 311 between mandrel, launch locking screw ring inner chamber 312, launch cover support ring inner chamber 313, mandrel supports nonmetallic ring 314, main locating hole 41, launch shafting oil string holes 42, auxiliary positioning hole 43, mandrel middle bench 501, mandrel oil string holes 502, mandrel auxiliary positioning hole 503, transmitting crystal partial fixing draw-in groove 504, transformer portion fixed card slot 505, radial detents 506, mandrel chamber oilhole 507, mandrel support slot 508, oil-through hole 509 between transmitter unit, main dowel hole 510, end cap radial direction locating groove 511, emission shaft 61, launch mandrel 62, auxiliary positioning pin 63, launch alignment pin spacer 64, alignment pin housing screw 65, main alignment pin 66, nonmetal sound insulation ring 67, transmitting crystal 701, Crystal-support cover 702, transmitting crystal seat 703, rubber insulates against sound, axially sound insulation, shock ring 704, check ring 705, mirror image has assembled transmitting crystal part 706, the sound insulation of crystal radial direction, yielding rubber ring 707, Crystal-support overlaps oily wire casing 708, transmitting crystal seat radial location key 709, transmitting crystal seat oil line square hole 710, transmitting crystal seat oil line circular hole 711, transmitting crystal long slot bore 712, transmitting crystal seat stand rank 713, mirror image has assembled transformer portion 801, transformer insulated holder 802, launch transformer 803, launch transformer insulated pad 804, launch bearing clip plate 805, thrust washer 806, launch bearing outer plate 807, launch locking screw ring 808, check ring 809, thrust washer axial compression face 810, thrust washer is radial to supporting surface 811, felt pad oil wire casing 812, locking screw ring seal face 813, alignment pin spacing hole 814, locking major thread 815, locking screw ring oil string holes 816, locking screw ring oil wire casing 817, locking screw loop mapping face 818, support ring jump-ring slot 819, end cap connects step 820, launch cover 901, rubber shock-absorbing ring 902, launch cover support ring 903, check ring 904, launch seal cover 905, check ring 906, mirror image has assembled support section 907, launch ring support ring 908 in cover, launch cover radial indentation 909, launch cover axial groove 910, launch cover inner face 911, docking screw thread 912, seal groove 913, shock ring bayonet socket 914, hook-headed wrench hole 915, axially to locating surface 916, end cap seal face 917, spring jump-ring slot 918, end cap seal face 919, end cap external seal ring recess 920, end cap inner seal ring groove 921, end cap oil line half slot 922, radial location projection 923.
Detailed description of the invention
Detailed description is below only exemplary in essence, does not attempt restriction the present invention or its application and purposes.
Fig. 1 shows the schematic diagram of acoustic logging.Sonic probe 11 comprises pinger 12 and acoustic receiver 13, and it is placed in the borehole wall 14.The present invention relates to the pinger 12 in sonic probe.Fig. 1 can briefly explain effect in acoustic logging of the principle of acoustic logging and the present invention and function.In acoustic logging process, launch acoustic signals by pinger 12, sound wave is propagated in underground medium, and the various physical characteristics of ground sheaf space are on the impact of the various characteristics generations of acoustic signals, after certain hour decay, sound wave is accepted by acoustic receiver 13.By analyzing the acoustic signals of decay, judge the relevant geologic structure of underground.Pinger 12 has acoustic wave generating element, and this acoustic wave generating element is Electroacooustic power conversion device, makes with piezoelectric ceramics or piezoelectric quartz.Under the effect of pulse current, acoustic wave generating element converts mechanical energy to electric energy, and launches in the form of a sound wave.The material of acoustic receiver 13 is identical with acoustic wave generating element.Because the piezo-electric effect of piezoelectric ceramics, piezoelectric quartz etc. is reversible, when being subject to mechanical stress effect, the electric-field intensity produced between the piezoelectric fixed point in acoustic receiver 13 is proportional to applied acoustic pressure, thus produces voltage output.The phase place of the signal of telecommunication produced is consistent with the phase place of sound wave, the amplitude of the signal of telecommunication and the amplitude proportional of sound wave.
The present invention relates to the pinger 12 shown in Fig. 1, its new structure overcomes the multinomial deficiency of traditional acoustic emitter structures, and greatly improves the performance of acoustic logging instrument.
Fig. 2 is that this composed emission pipe nipple is the pinger shown in Fig. 1 according to the schematic distribution map of sound wave composed emission pipe nipple of the present invention in array acoustic well logger device.Fig. 2 shows probing shell 21, sound wave composed emission pipe nipple 22, the axial midpoint 23 of sound wave composed emission pipe nipple, acoustic emission sound transmitting window 24 and acoustic receiver sound transmitting window 25.
Probing shell 21 adopts metal material, bears formation temperature and strata pressure, and the internal construction of pair array acoustic logging instrument provides protection.Though the metal material of probing shell 21 internal construction of pair array acoustic logging instrument can provide protection but also creates obstacle and decay to the transmitting of sound wave and reception simultaneously, affect the precision of whole instrument, therefore in the transmitting of sound wave, receiving unit opens sound transmitting window at probing shell 21, the acoustic emission sound transmitting window 24 corresponding with launching link and the acoustic receiver sound transmitting window 25 corresponding with receiving link, in installation process, sound wave composed emission pipe nipple axial midpoint 23 aligns with acoustic emission sound transmitting window 24, structure of the present invention can ensure that two emitter structures in sound wave composed emission pipe nipple 22 are all in acoustic emission sound transmitting window 24 scope, the receiver of sound wave is corresponding with acoustic receiver sound transmitting window 25 respectively in an assembling process, the impact of probing shell 21 on acoustic signals is dropped to minimum.
Sound wave composed emission pipe nipple 22 is placed among array acoustic well logger device probing shell 21, for the sound source of array acoustic well logger device generates and radiating portion.Sound wave composed emission pipe nipple 22 of the present invention, adopts double sound source emitting structural, increases transmit signal strength, improves the reliability of acoustic signals and then improves the precision of array acoustic well logger device.
Fig. 3 shows the structure chart of array acoustic well logger device composed emission pipe nipple, particularly illustrates arbor portions 301, entrant sound cover and support section 302, transmitting crystal part 303 and transformer portion 304; Its fluid fill area comprises: mandrel chamber 305, transmitting cover inner chamber 306, crystal inner chamber 307, transformer inner chamber 308, first transmitting cover support inner chamber 309, second transmitting and cover inner chamber 311 between support inner chamber 310, mandrel, launch locking screw ring inner chamber 312, launch cover support ring inner chamber 313 and mandrel support nonmetallic ring 314.
Transmitting crystal part 303 and the transformer portion 304 of array acoustic well logger device composed emission pipe nipple form a transmitter unit.In one embodiment of the invention, transmitting crystal part 303 and transformer portion 304 are all disposed in entrant sound cover and support section 302 and make transmitting crystal part 303 be adjacent to transformer portion 304.Such a configuration reduce track lengths therebetween, reduce the interference of electromagnetism to signal to greatest extent.
Array acoustic well logger device is launched pipe nipple and is adopted bicrystal emitting structural, launches specular in pipe nipple arrange at array acoustic well logger device.In one embodiment of the invention, see Fig. 3, composed emission pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described second transmitting crystal part and the second transformer portion are arranged about the axial midpoint specular of composed emission pipe nipple with transmitting crystal part 303 and transformer portion 304 respectively.
After array acoustic well logger device transmitting pipe nipple whole interior Standard completes, to inner chamber oiling, whole inner cavity is full of fluid, for offsetting strata pressure during acoustic logging, the structure not only compact saving space of uniqueness of the present invention, and each cavity of effective UNICOM, after making oiling, fluid is full of array acoustic well logger device composed emission pipe nipple whole interior structure, guarantee oil circuit is unimpeded, in loading process, oil pressure is balanced, in cavity, gas exhaust is completely without dead angle, reduces the impact because residual gas may produce instrument.
Fig. 4 shows the structure chart of emission shaft, particularly illustrates main locating hole 41, main shaft oil string holes 42 and auxiliary positioning hole 43.
The present invention is two emitting structurals, and two transmitter units be that main locating hole 41 is symmetrical axial arranged, and main locating hole 41 arranges two on emission shaft, distributes along axisymmetrical, is the main locating hole of arbor portions 301.Launch shafting oil string holes 42 and arrange four on emission shaft, respectively along axis and main locating hole 41 symmetrical, major function is the path of cabling, excessively oil.Auxiliary positioning hole 43 arranges four on emission shaft, respectively along axis and main locating hole 41 symmetrical, be the circumferential registration hole that transformer portion launches locking screw ring 808.
Fig. 5 shows the structure chart launching mandrel, particularly illustrates oil-through hole 509, main dowel hole 510 and end cap radial direction locating groove 511 between mandrel middle bench 501, mandrel oil string holes 502, mandrel auxiliary positioning hole 503, transmitting crystal partial fixing draw-in groove 504, transformer portion fixed card slot 505, radial detents 506, mandrel chamber oilhole 507, mandrel support slot 508, transmitter unit.
Mandrel middle bench 501 except as playing location to outside entrant sound cover, the effect that supports is outer also as the boundary section of the present invention's pair emitting structural, two transmitter units are mirror image assembling at mandrel middle bench 501 two ends, therefore the support section 302 herein only to mandrel middle bench 501 side, transmitting crystal part 303, transformer portion 304 and entrant sound hood assembly structure are illustrated, and the structure of mirrored portion is identical.After completing assembling, main dowel hole 510, mandrel oil string holes 502, the position in mandrel auxiliary positioning hole 503 and quantity and the main locating hole 41 of emission shaft, cable hole 42, auxiliary positioning hole 43 one_to_one corresponding.
Launch the location structure of mandrel: corresponding with emission shaft main locating hole 41 when main dowel hole 510 assembles, be the main syndeton of the two assembling, transmitting crystal partial fixing draw-in groove 504 is the axial positioning structures after transmitting crystal part completes installation; Transformer portion fixed card slot 505 is the axial positioning structures after transformer portion 34 completes installation.Radial detents 506 is the main radial detents of link of the present invention; Mandrel support slot 508 liner acoustic pad is by emission shaft and launch mandrel and separate and forms inner chamber 311 between mandrel, plays emission shaft minimizing as far as possible, the function of lowering apparatus noise.
Launch the connectivity structure of mandrel: mandrel oil string holes 502 aligns with transmitting shafting oil string holes 42, links up mandrel chamber 305 and transformer inner chamber 308; Mandrel chamber oilhole 507 links up inner chamber 311 between mandrel chamber 305 and mandrel; Between transmitter unit, oil-through hole 509 links up the acoustic wave array transmitter unit of mandrel middle bench 501 both sides; The unimpeded function having cabling concurrently of oil circuit both this communication structure ensures.
Fig. 6 shows the assembly drawing of arbor portions 301, particularly illustrates emission shaft 61, transmitting mandrel 62, auxiliary positioning pin 63, launches alignment pin spacer 64, alignment pin housing screw 65, main alignment pin 66 and nonmetal sound insulation ring 67.
As shown in Figure 3, emission shaft 61 is set with transmitting mandrel 62, also namely emission shaft 61 is sleeved in transmitting mandrel 62, support nonmetallic ring 314 by mandrel to be interposed between emission shaft 61 and to launch between mandrel 62, make emission shaft 61 and launch between mandrel 62 to form inner chamber 311 between mandrel, arbor portions 301 is main support structure of each function element of the present invention.Entrant sound cover and support section 302, transmitting crystal part 303 and transformer portion 304 are installed on arbor portions 301.Emission shaft 61 with launch mandrel 62 thisly support by mandrel structure that nonmetallic ring 314 separates and effectively stop sound wave to instrument arbor portions internal communication and then decrease the noise that signal passed on by emission shaft.
Emission shaft 61 has position, eight holes respectively with transmitting mandrel 62, has been set with position, rear eight holes, correct location one_to_one corresponding.Main locating hole 41 aligns with main dowel hole 510; Main shaft oil string holes 42 is alignd with mandrel oil string holes 502, aligns with mandrel auxiliary positioning hole 503 in auxiliary positioning hole 43.
Emission shaft 61 and launch that mandrel 62 passes through to launch alignment pin separation sleeve 64 at main locating hole 41 and main dowel hole 510 place, main alignment pin 66 is connected, upper end adds nonmetal sound insulation ring 67, alignment pin housing screw 65 is fixed.That launches that alignment pin spacer 64 material adopts defening effect good is nonmetal, has sound insulation function, the non-metallic elastic material that nonmetal sound insulation ring 67 adopts defening effect good, also has to compress and launch the locking dual-use function of alignment pin except having sound insulation effect.The auxiliary positioning pin-and-hole at two ends adopts nonmetal sound insulation ring 67, auxiliary positioning pin 63 connects, auxiliary positioning pin 63 and emission shaft 61, there is the adapted space in gap between the pin-and-hole of transmitting mandrel 62, also there is the function absorbing processing, assembling cumulative errors except the function with auxiliary positioning.
Fig. 7 A shows the assembly drawing of transmitting crystal part 303, particularly illustrates transmitting crystal 701, Crystal-support cover 702, transmitting crystal seat 703, rubber sound insulation, axially sound insulation, shock ring 704, check ring 705 and mirror image assembled transmitting crystal part 706.
Transmitting crystal part 303 is arranged on arbor portions 301, and mandrel middle bench 501 one-tenth specular are arranged, therefore this figure only disassembles side and is illustrated, and transmitting crystal 701 is acoustic wave generating element of the present invention, is made up of piezoelectric ceramics or piezoelectric quartz.Under the effect of pulse current, transmitter converts mechanical energy to electric energy, and launches in the form of a sound wave.Crystal-support cover 702 is installed at transmitting crystal 701 two ends, and transmitting crystal 701 and Crystal-support overlaps 702 axis, radial contact point arranges that rubber insulates against sound, shock ring 704 respectively, play sound insulation, avoids acoustic loss and crystal is played to the effect of vibration protection.Transmitting crystal seat 703, play the positioning action to whole transmitting crystal part 303, transmitting crystal seat 703 installation check ring 705 with launch the transmitting crystal partial fixing draw-in groove 504 that mandrel is arranged and match, complete the axial location of whole transmitting crystal part, it is that two another transmitting crystal sections fit launching specular completes part that mirror image has assembled transmitting crystal part 706.
Fig. 7 B shows the structure chart of Crystal-support cover 702, and wherein, Crystal-support overlaps 702 concrete structures and comprises: the sound insulation of crystal radial direction, yielding rubber ring 707 and Crystal-support overlap oily wire casing 708.
The sound insulation of crystal radial direction, yielding rubber ring 707 play sound insulation in radial direction between Crystal-support cover 702 and transmitting crystal 701, avoid acoustic loss, and play the effect of vibration protection to crystal.Crystal-support overlaps oily wire casing 708, launches the oily path of mistake of linking up between cover inner chamber 306 and crystal inner chamber 307, ensures that oil circuit is unimpeded.
Fig. 7 C shows the structure chart of transmitting crystal seat 703, particularly illustrates transmitting crystal seat radial location key 709, transmitting crystal seat oil line square hole 710, transmitting crystal seat oil line circular hole 711, transmitting crystal long slot bore 712 and transmitting crystal seat stand rank 713.
Transmitting crystal seat radial location key 709 matches with the radial detents 506 that transmitting mandrel 62 is arranged and plays the effect of radial location.Transmitting crystal seat oil line square hole 710, transmitting crystal seat oil line circular hole 711, transmitting crystal long slot bore 712 was oily cabling, linked up the effect of crystal inner chamber 307 and transformer inner chamber 308.
Fig. 8 A shows the assembly drawing of transformer portion, particularly illustrate the transformer portion 801 that mirror image has assembled, it comprises transformer insulated holder 802, launches transformer 803, launches transformer insulated pad 804, launches bearing clip plate 805, thrust washer 806, launch bearing outer plate 807, launch locking screw ring 808 and check ring 809.
See Fig. 3 and Fig. 5, transformer portion 304 is arranged on arbor portions 301, and become specular to arrange in mandrel middle bench 501 both sides, therefore Fig. 8 A only disassembles side and is illustrated.The transformer portion 801 that mirror image has assembled is that two another transformer portion of launching specular has assembled part.Transformer insulated holder 802 is the location seals launching the axial left and right of transformer 803 with launching transformer insulated pad 804, transformer insulated holder 802 lays respectively at the axial both sides of launching transformer 803 with the transformer insulated pad 804 of transmitting, transformer insulated holder 802 is manufactured by insulation materials respectively with the transformer insulated pad 804 of transmitting, ensure that launching transformer 803 separates with metal construction.
Launch transformer 803 and provide power supply for transmitting crystal 701 of the present invention, determine to have the path connecting wire therebetween, another the present invention makes both adjacent, except necessary connection cutting function part, both coverages are the shortest, reduce conductor length, convenient connection reduces electromagnetic wave to the interference of signal simultaneously.Launch bearing clip plate 805, thrust washer 806, launch bearing outer plate 807, launch locking screw ring 808, check ring 809 is installed successively vertically, check ring 809 and transformer portion fixed card slot 505 match, make transformer portion 801 axial location, whole transformer portion 801 compresses carries out axial location by check ring 809, thrust washer 806 and transmitting bearing clip plate 805 contact surface arrange needle-like roller bearing, circumferential rolling can be done on transmitting bearing clip plate 805 surface, reduce the rotation that in compaction process, frictional force causes, transmitting bearing clip plate 805 is arranged and is launched between transformer insulated pad 804 and thrust washer 806 and provides protective effect to transformer insulated pad 804.Launch the datum being again force and compressing the while that bearing outer plate 807 being installation carriers of thrust washer 806.Outer end is slipped into and is launched locking screw ring 808 check ring 809 compression that exerts a force and block.
The small circle ring of transformer insulated holder 802 step ladder circular ring overlaps yielding rubber ring, play the effect of damping, the other end of yielding rubber ring is pressed in and the transmitting crystal seat stand rank 713 on transmitting crystal seat 703, the existence of transmitting crystal long slot bore 712 ensure that assembling compresses the unimpeded of crystal inner chamber 307 and transformer inner chamber 308 oil circuit after yielding rubber ring, plays the effect of offsetting mismachining tolerance simultaneously.
Fig. 8 B shows the structure chart launching transformer insulated pad 804, particularly illustrates thrust washer axial compression face 810, thrust washer radial support face 811 and felt pad oil wire casing 812.Thrust washer axial compression face 810 is for launching transformer 803 axial locating surface, thrust washer is radial is the radial location face of launching transformer 803 axial locating surface to supporting surface 811, felt pad oil wire casing 812 is linked up and is launched cover inner chamber 306 and transformer inner chamber 308, thus ensures the unimpeded of oil circuit.
Thus, transmitting crystal part 303, connection between transformer portion 304 relates to multiple connector and damping, joint ring, by the transmitting crystal seat oil line square hole 710 of transmitting crystal seat 703, transmitting crystal seat oil line circular hole 711, transmitting crystal long slot bore 712, ensure that the unimpeded of oil between crystal inner chamber 307 and transformer inner chamber 308, circuit; The Crystal-support of Crystal-support cover 702 overlaps oily wire casing 708 and ensure that the unimpeded of oil between transmitting cover inner chamber 306 and crystal inner chamber 307, circuit; The felt pad oil wire casing 812 launching transformer insulated pad 804 ensure that the unimpeded of oil between transmitting cover inner chamber 306 and transformer inner chamber 308, circuit.
Fig. 8 C shows the structure chart launching locking screw ring 808, particularly illustrates locking screw ring seal face 813, alignment pin spacing hole 814, locking major thread 815, locking screw ring oil string holes 816, locking screw ring oil wire casing 817, locking screw loop mapping face 818, support ring jump-ring slot 819 be connected step 820 with end cap.
Locking screw ring seal face 813 is adjacent to transmitting bearing outer plate 807; Locking major thread 815 docks with end face support ring; The check ring 809 that locking screw loop mapping face 818 is installed with transformer portion fixed card slot 505 place is adjacent to mutually, forms transformer portion 304 axial positioning structure.
Alignment pin spacing hole 814 intracavitary locations is auxiliary positioning pin 63, and auxiliary positioning hole 43 is linked up mandrel chamber 305 and launched locking screw ring inner chamber 312; Locking screw ring oil string holes 816 is connected with alignment pin spacing hole 814, links up to launch locking screw ring inner chamber 312 and first and launch to cover and support inner chamber 309; Locking screw ring oil wire casing 817 is linked up and is launched locking screw ring inner chamber 312 and second and launch to cover and support inner chamber 310, and guarantee oil circuit is unimpeded respectively.
Fig. 9 A shows the assembly drawing of entrant sound cover and support section 302, particularly illustrates transmitting cover 901, rubber shock-absorbing ring 902, launches cover support ring 903, check ring 904, launches seal cover 905, check ring 906, mirror image have assembled support section 907 and ring support ring 908 in transmitting cover.
Arbor portions 301 has been assembled namely to install and has been launched ring support ring 908 in cover, launching ring support ring 908 in cover, to be installed on the corresponding both sides of mandrel middle bench 501 place-centric concordant, completes to launch ring support ring 908 in cover and assemble transmitting crystal part 303, transformer portion 304, entrant sound cover and support section 302 successively after installing.Launch in cover to be provided with in the middle part of ring support ring 908 and support O ring recess, mounting O-shaped rings, as the midfoot support launching cover 901, O type circle has the effect of damping.
It is that two another support section launching specular has assembled part that mirror image has assembled support section 907.Cover 901 launched by suit, the internal thread launching cover support ring 903 engages with the external screw thread launching locking screw ring 808, launch cover 901 and launch between cover support ring 903 and rubber shock-absorbing ring 902 is installed, check ring 904 and support ring jump-ring slot 819 have matched and have launched the axial location of cover support ring 903, launch seal cover 905 to connect with transmitting locking screw ring 808, end cap connects step 820 and is provided with yielding rubber ring, and seal cover 905 completes entrant sound cover and support section 302 last axial location with check ring 906 is launched in installation.
Fig. 9 B shows the structure chart launching cover 901, particularly illustrates and launches cover radial indentation 909, transmitting cover axial groove 910 and launch cover inner face 911.
Launch cover 901 to be made of metal, there is the effect of isolation mud.Instrument there will be liquefied gas by the situation in rubber molecule gap infiltration instrument when underground work, after instrument goes out well, LNG gasifaction can cause leather bag to expand, and damages leather bag time serious, thus the part of damage instrument probe inside.It is replace leather bag parcel crystal to solve with above-mentioned problem with metal shell that the present invention launches cover 901.
Launch cover radial indentation 909 and compress rubber shock-absorbing ring 902, rubber shock-absorbing ring 902 is under the choosing dress extruding of launching cover support ring 903, and embedding is launched cover radial indentation 909 and formed the resistance that is launched cover 901 radial direction, effectively stops transmitting cover 901 to rotate; Launch cover axial groove 910 and be arranged symmetrically with the wall thickness that two reduce transmitting cover 901, the present invention is the two emitting structural of sound wave, launch cover axial groove 910 and two transmitting crystal 701 position relationship one_to_one corresponding for two, launch cover axial groove 910 place and reduce transmitting cover 901 wall thickness, can effectively prevent acoustic signals in the decay of entrant sound cover 901 part, the reduction of launching cover 901 local wall thickness makes overall emission cover 901 intensity unlikely by larger impact.
Fig. 9 C shows the structure chart launching cover support ring 903, particularly illustrates docking screw thread 912, seal groove 913, shock ring bayonet socket 914, hook-headed wrench hole 915, axis to locating surface 916, end cap seal face 917 and spring jump-ring slot 918.
Docking screw thread 912 docks with locking major thread 815, completes the assembling of launching cover support ring 903, and seal groove 913 is installed sealing O type circle and launched the common stroke hermetically-sealed construction of cover inner face 911.Shock ring bayonet socket 914 compresses rubber shock-absorbing ring 902 and launches cover 901, the multi-efficiency playing damping and prevent transmitting cover 901 from rotating.Hook-headed wrench hole 915 makes hook-headed wrench hole for docking screw thread 912 completes docking.Axially being connected step 820 compression place to locating surface 916 with end cap installs rubber shock-absorbing ring.Spring jump-ring slot 918 mounting spring back-up ring 906 completes the axial location of end cap.
Fig. 9 D shows the structure chart launching seal cover 905, particularly illustrates end cap seal face 919, end cap external seal ring recess 920, end cap inner seal ring groove 921, end cap oil line half slot 922 and radial location projection 923.
End cap seal face 919 is connected step 820 by rubber shock-absorbing ring with the end cap launching locking screw ring 808 and compresses.End cap oil line half slot 922 to be connected with the end cap launching locking screw ring 808 by rubber shock-absorbing ring at end cap seal face 919 and to play communication second after step 820 compresses and launch the effect of covering and supporting inner chamber 310 and transmitting cover support ring inner chamber 313.The in-built O RunddichtringO of end cap external seal ring recess 920 has contacted with transmitting cover inner face 911 effect sealed.The in-built O RunddichtringO of end cap inner seal ring groove 921 has contacted with emission shaft 61 effect sealed.Radial location protruding 923 is docked with end cap radial direction locating groove 511, makes transmitting seal cover 905 radial location.
From illustrating above, those skilled in the art can recognize that extensive instruction of the present disclosure can be implemented according to various ways.Although the disclosure includes concrete example, true scope of the present disclosure should not be so limited, because those skilled in the art will be appreciated that other amendment, distortion and replacement after have studied accompanying drawing, manual and appended claims.
Claims (9)
1. the composed emission pipe nipple of an acoustic logging instrument, comprise arbor portions, entrant sound cover and support section, transmitting crystal part and transformer portion, wherein, described entrant sound cover and support section, described transmitting crystal part and described transformer portion are all installed on described arbor portions, described transmitting crystal part and described transformer portion are all disposed in described entrant sound cover and support section, make described transmitting crystal part be adjacent to described transformer portion.
2. composed emission pipe nipple as claimed in claim 1, wherein, described entrant sound cover and support section comprise launches cover, and described transmitting crystal part is placed in described transmitting cover, and described transmitting cover is made of metal.
3. composed emission pipe nipple as claimed in claim 2, wherein, described cover of launching has the wall thickness locally reduced, and reduces sound wave in the decay through launching when covering.
4. composed emission pipe nipple as claimed in claim 1, wherein, described composed emission pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described second transmitting crystal part and the second transformer portion are arranged about the axial midpoint specular of described composed emission pipe nipple with described transmitting crystal part and transformer portion respectively.
5. composed emission pipe nipple as claimed in claim 1, wherein, described arbor portions comprises emission shaft and launches mandrel, described emission shaft is sleeved in described transmitting mandrel, mandrel supports nonmetallic ring and is interposed between described emission shaft and described transmitting mandrel, makes to form inner chamber between mandrel between described emission shaft and described transmitting mandrel.
6. composed emission pipe nipple as claimed in claim 5, wherein, described emission shaft comprises main locating hole, main shaft oil string holes and auxiliary positioning hole, described transmitting mandrel comprises main dowel hole, mandrel oil string holes and mandrel auxiliary positioning hole, and wherein, when described emission shaft is sleeved in described transmitting mandrel, described main locating hole aligns with described main dowel hole, described main shaft oil string holes is alignd with described mandrel oil string holes, and aligns with described mandrel auxiliary positioning hole in described auxiliary positioning hole.
7. composed emission pipe nipple as claimed in claim 1, wherein, described transformer portion comprises transformer insulated holder, launch transformer, launch transformer insulated pad, launch bearing clip plate, thrust washer, launch bearing outer plate, launch locking screw ring and check ring, wherein, described transformer insulated holder and the transformer insulated pad of described transmitting lay respectively at the axial both sides of described transmitting transformer, described transformer insulated holder and the transformer insulated pad of described transmitting are manufactured by insulation materials respectively, and wherein, described transmitting bearing clip plate, described thrust washer, described transmitting bearing outer plate, described transmitting locking screw ring, described check ring is installed successively vertically, the transformer portion fixed card slot of described check ring and described transmitting mandrel matches, make described transformer portion axial location.
8. composed emission pipe nipple as claimed in claim 7, wherein, described transmitting locking screw is equipped with external screw thread, and the internal thread of the transmitting cover support ring of described external screw thread and described entrant sound cover and support section engages.
9. composed emission pipe nipple as claimed in claim 1, wherein, described transmitting crystal part comprises transmitting crystal, and described transmitting crystal is made up of piezoelectric ceramics or piezoelectric quartz.
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|---|---|---|---|
| CN201310417141.9A CN104453846B (en) | 2013-09-13 | 2013-09-13 | Composite transmitting nipple of acoustic logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310417141.9A CN104453846B (en) | 2013-09-13 | 2013-09-13 | Composite transmitting nipple of acoustic logging instrument |
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| CN104453846A true CN104453846A (en) | 2015-03-25 |
| CN104453846B CN104453846B (en) | 2024-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680618A (en) * | 2021-07-29 | 2023-02-03 | 中国石油化工股份有限公司 | Array type multi-frequency sound wave oil-gas well casing visualization method and detection device |
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| CA2127254A1 (en) * | 1992-11-04 | 1994-05-11 | Western Atlas International, Inc. | Borehole logging tool |
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| CN101392646A (en) * | 2008-10-21 | 2009-03-25 | 中国海洋石油总公司 | Acoustic logging instrument of novel acoustic array structure |
| CN203570306U (en) * | 2013-09-13 | 2014-04-30 | 中国石油集团长城钻探工程有限公司 | Composite emitting short joint of acoustic logging instrument |
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| GB8327510D0 (en) * | 1982-10-15 | 1983-11-16 | Schlumberger Ltd | Acoustic well logging |
| CN1038489A (en) * | 1988-06-09 | 1990-01-03 | 中国科学院声学研究所 | The method of using acoustic wave to evaluate cement-bond well quality in all its aspests |
| CA2127254A1 (en) * | 1992-11-04 | 1994-05-11 | Western Atlas International, Inc. | Borehole logging tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115680618A (en) * | 2021-07-29 | 2023-02-03 | 中国石油化工股份有限公司 | Array type multi-frequency sound wave oil-gas well casing visualization method and detection device |
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|---|---|
| CN104453846B (en) | 2024-02-02 |
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