CN203570306U - Composite emitting short joint of acoustic logging instrument - Google Patents
Composite emitting short joint of acoustic logging instrument Download PDFInfo
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- CN203570306U CN203570306U CN201320568296.8U CN201320568296U CN203570306U CN 203570306 U CN203570306 U CN 203570306U CN 201320568296 U CN201320568296 U CN 201320568296U CN 203570306 U CN203570306 U CN 203570306U
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Abstract
The utility model relates to a composite emitting short joint of an acoustic logging instrument. The composite emitting short joint comprises a core shaft part, an entrant sound cover and supporting part, an emitting crystal part and a transformer part, wherein the entrant sound cover and supporting part, the emitting crystal part and the transformer part are all mounted on the core shaft part, the emitting crystal part and the transmission part are all arranged in the entrant sound cover and supporting part, and the emitting crystal part is made to be adjacent to the transformer part.
Description
Technical field
The utility model relates to a kind of compound transmitting pipe nipple of acoustic logging instrument.
Background technology
Acoustic logging is that the acoustic characteristic by measuring borehole wall medium is studied 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 basic principle of acoustic logging is: when sound wave is propagated in different medium, its spread speed has very large difference, and the acoustic characteristic such as its amplitude fading, frequency change is also different.Modern logging technique is just by measuring the above-mentioned several parameters,acoustics 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 on stratum, degree of porosity, oil saturation, water saturation, gas saturation, permeability etc.In addition, can also utilize Sonic Logging Data to analyze reservoir stress, survey formation fracture, detect the cementing state in cased well, evaluating cementing quality etc.
The instrument that acoustic logging is used has many different kinds, and their common feature is to transmit and receive sound wave.Different instruments transmits and receives dissimilar sound wave, thereby reaches different testing goals.Modern age, acoustic logging development was very fast, and conventional acoustic logging at present mainly contains following several method: sonic log, the well logging of sound wave amplitude, long space sound wave full wave train log harmony imaging logging.
Sound wave is a kind of forms of motion being produced by the mechanical oscillation of material, by the interaction of particle in material, vibration is from the close-by examples to those far off transmitted and is propagated.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 conventionally.Because sound wave is that elastic body is subject to External Force Acting to produce elastic deformation generation, so the elasticity of the speed that sound wave is propagated in material, frequency, amplitude and object and elasticity mechanics parameter are closely related.
In recent years, along with going deep into of geology and oil exploration, the expectation to logger and requirement are also more and more higher, and acoustic logging is one of important method of oil well logging.The acoustic logging adopting is at present to utilize transmitting transducer to send sound wave in down-hole, in underground medium, propagates, and after certain hour decay, received transducer receives, by the acoustic signals analysis of decay is judged to underground relevant geologic structure.
Existing a lot of acoustic wave apparatus is to wrap up crystal with leather bag, and as pressure balanced medium, instrument there will be liquefied gas to pass through the situation in rubber molecule gap infiltration instrument when underground work, after instrument goes out well, LNG gasifaction can cause leather bag to expand, when serious, damage leather bag, thus the part of damage instrument probe inside.
Utility model content
The sound source that the compound transmitting pipe nipple of acoustic logging instrument is well logging sound wave instrument is initiated part, and the quality of its structure directly has influence on performance and the precision of acoustic logging instrument.The utility model provides a kind of compound transmitting pipe nipple of the acoustic logging instrument with unique texture, it comprises mandrel part, 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 in described mandrel part, 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 transmitting cover, and described transmitting crystal part is placed in described transmitting cover, and described transmitting cover is made of metal.
Preferably, described transmitting cover has the wall thickness that part reduces, and reduces the decay of sound wave when through transmitting cover.
Preferably, described compound transmitting pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described the second transmitting crystal part and the second transformer portion are arranged symmetrically with about the axial midpoint mirror image of described compound transmitting pipe nipple with described transmitting crystal part and transformer portion respectively.
Preferably, described mandrel part comprises emission shaft and transmitting mandrel, described emission shaft is sleeved in described transmitting mandrel, and mandrel supports nonmetallic ring every 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 line hole and assist location hole, described transmitting mandrel comprises main dowel hole, mandrel oil line hole and mandrel assist location hole, and wherein, in the time of in described emission shaft is sleeved on described transmitting mandrel, described main locating hole aligns with described main dowel hole, and aliging with described mandrel oil line hole in described main shaft oil line hole, and aligns with described mandrel assist location hole in described assist location hole.
Preferably, described transformer portion comprises transformer insulated holder, transmitting transformer, launch transformer insulated pad, transmitting bearing clip plate, thrust washer, transmitting bearing outer plate, transmitting 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 described external screw thread engages with the internal thread of the transmitting cover support ring of described entrant sound cover and support section.
Preferably, described transmitting crystal part comprises transmitting crystal, and described transmitting crystal is made by piezoelectric ceramics or piezoelectric quartz.
The compound transmitting pipe nipple of acoustic logging instrument of the present utility model replaces leather bag parcel crystal with metal shell, uses piston instead as pressure equaliser simultaneously, with this, solves the problem that liquefied gas infiltrates.Transmitting pipe nipple of the present utility model is made in a pipe nipple transmitting crystal and transmitting transformer simultaneously, close to making like this that transformer tries one's best from transmitting crystal, shortened the line length of transmitting transformer to transmitting crystal power supply, the impact of the high pressure producing in the time of so just can reducing power supply on instrument signal as far as possible.
Accompanying drawing explanation
By also consider can have more complete understanding to the utility model by accompanying drawing with reference to the specific embodiment and claim simultaneously, in accompanying drawing:
Fig. 1 is the schematic diagram of acoustical well-logging devices;
Fig. 2 is according to the schematic distribution map of the compound transmitting pipe nipple of array acoustic well logger device of the present utility model;
Fig. 3 is according to the schematic diagram of the compound transmitting pipe nipple of array acoustic well logger device of the present utility model;
Fig. 4 is the schematic diagram according to emission shaft of the present utility model;
Fig. 5 is according to the schematic diagram of transmitting mandrel of the present utility model;
Fig. 6 is the schematic assembly drawing according to mandrel part of the present utility model;
Fig. 7 A is the schematic assembly drawing according to transmitting crystal part of the present utility model;
Fig. 7 B is according to the schematic diagram of crystal support set of the present utility model;
Fig. 7 C is according to the schematic diagram of transmitting crystal seat of the present utility model;
Fig. 8 A is the schematic assembly drawing according to transformer portion of the present utility model;
Fig. 8 B is according to the schematic diagram of the transformer insulated pad of transmitting of the present utility model;
Fig. 8 C is according to the schematic diagram of transmitting locking screw ring of the present utility model;
Fig. 9 A is according to the schematic assembly drawing of entrant sound cover of the present utility model and support section;
Fig. 9 B is according to the schematic diagram of transmitting cover of the present utility model;
Fig. 9 C is according to the schematic diagram of transmitting cover support ring of the present utility model; And
Fig. 9 D is according to the schematic diagram of transmitting seal cover of the present utility model.
Wherein: sonic probe 11, pinger 12, acoustic receiver 13, the borehole wall 14, probing shell 21, the compound transmitting pipe nipple 22 of sound wave, the compound transmitting pipe nipple of sound wave axial midpoint 23, acoustic emission window 24, sound wave receiver window 25, mandrel part 301, entrant sound cover and support section 302, transmitting crystal part 303, transformer portion 304, mandrel chamber 305, transmitting cover inner chamber 306, crystal inner chamber 307, transformer inner chamber 308, the first transmitting cover supports inner chamber 309, the second transmitting cover supports inner chamber 310, inner chamber 311 between mandrel, transmitting locking screw ring inner chamber 312, transmitting cover support ring inner chamber 313, mandrel supports nonmetallic ring 314, main locating hole 41, transmitting shafting oil line hole 42, assist location hole 43, mandrel middle bench 501, mandrel oil line hole 502, mandrel assist location 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, transmitting mandrel 62, assist location pin 63, transmitting alignment pin spacer 64, alignment pin housing screw 65, main alignment pin 66, nonmetal sound insulation ring 67, transmitting crystal 701, crystal support set 702, transmitting crystal seat 703, rubber sound insulation, axially sound insulation, shock ring 704, check ring 705, mirror image has assembled transmitting crystal part 706, crystal radially insulates against sound, yielding rubber ring 707, crystal support set oil 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, transmitting transformer 803, launch transformer insulated pad 804, transmitting bearing clip plate 805, thrust washer 806, transmitting bearing outer plate 807, transmitting locking screw ring 808, check ring 809, thrust washer axial compression face 810, thrust washer is radially 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 line hole 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, transmitting cover 901, rubber shock-absorbing ring 902, transmitting cover support ring 903, check ring 904, transmitting seal cover 905, check ring 906, mirror image has assembled support section 907, in transmitting cover, encircle support ring 908, transmitting cover radial indentation 909, transmitting cover axial groove 910, transmitting 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.
The specific embodiment
Detailed description is below only exemplary in essence, does not attempt to limit the utility model 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 utility model relates to the pinger 12 in sonic probe.Fig. 1 can briefly explain principle and effect and the function of the utility model in acoustic logging of acoustic logging.In acoustic logging process, by pinger 12, launch acoustic signals, sound wave is propagated in underground medium, the impact that the various physical characteristics of ground sheaf space produce the various characteristics of acoustic signals, after certain hour decay, sound wave is accepted by acoustic receiver 13.By the acoustic signals of decay is analyzed, judge underground relevant geologic structure.Pinger 12 has sound wave generating device, and this sound wave generating device is Electroacooustic power conversion device, makes with piezoelectric ceramics or piezoelectric quartz.Under the effect of pulse current, sound wave generating device converts mechanical energy to electric energy, and launches with the form of sound wave.The material of acoustic receiver 13 is identical with sound wave generating device.Because the piezo-electric effect of piezoelectric ceramics, piezoelectric quartz etc. is reversible, when being subject to mechanical stress, do the used time, the electric-field intensity producing between the piezoelectric fixed point in acoustic receiver 13 is proportional to applied acoustic pressure, thereby produces Voltage-output.The phase place of the signal of telecommunication producing is consistent with the phase place of sound wave, and the amplitude of the signal of telecommunication is directly proportional to the amplitude of sound wave.
The utility model relates to the pinger 12 shown in Fig. 1, and its new structure has overcome the multinomial deficiency of traditional pinger structure, and has improved greatly the performance of acoustic logging instrument.
Fig. 2 is the schematic distribution map in array acoustic well logger device according to the compound transmitting pipe nipple of sound wave of the present utility model, and this compound transmitting pipe nipple is the pinger shown in Fig. 1.Axial midpoint 23, acoustic emission sound transmitting window 24 and sound wave that Fig. 2 shows probing shell 21, the compound transmitting pipe nipple 22 of sound wave, the compound transmitting pipe nipple of sound wave receive 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 internal construction that the metal material of probing shell 21 can pair array acoustic logging instrument provides protection, also the transmitting to sound wave and reception have produced obstacle and decay simultaneously, affect the precision of whole instrument, therefore in the transmitting of sound wave, receiving unit is opened sound transmitting window at probing shell 21, with acoustic emission sound transmitting window 24 corresponding to transmitting link and with receiving link, corresponding sound wave receives sound transmitting window 25, in installation process, the compound transmitting pipe nipple of sound wave axial midpoint 23 aligns with acoustic emission sound transmitting window 24, structure of the present utility model can guarantee that two emitter structures in the compound transmitting pipe nipple 22 of sound wave are all in acoustic emission sound transmitting window 24 scopes, in assembling process, the receiver of sound wave is corresponding with sound wave reception sound transmitting window 25 respectively, probing shell 21 is dropped to minimum on the impact of acoustic signals.
The compound transmitting pipe nipple 22 of sound wave 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.The compound transmitting pipe nipple 22 of the utility model sound wave, adopts double sound source emitting structural, increases transmit signal strength, improves the reliability of acoustic signals and then the precision of raising array acoustic well logger device.
Fig. 3 shows the structure chart of the compound transmitting pipe nipple of array acoustic well logger device, has specifically illustrated mandrel part 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, the first transmitting cover support inner chamber 309, the second transmitting cover supports inner chamber 311 between inner chamber 310, mandrel, transmitting locking screw ring inner chamber 312, transmitting cover support ring inner chamber 313 and mandrel and supports nonmetallic ring 314.
Transmitting crystal part 303 and the transformer portion 304 of the compound transmitting pipe nipple of array acoustic well logger device form a transmitter unit.In an embodiment of the present utility model, transmitting crystal part 303 is all disposed in entrant sound cover and support section 302 and makes transmitting crystal part 303 be adjacent to transformer portion 304 with transformer portion 304.This structure decrease the track lengths between the two, reduced to greatest extent the interference of electromagnetism to signal.
Array acoustic well logger device transmitting pipe nipple adopts bicrystal emitting structural, and in array acoustic well logger device transmitting pipe nipple, mirror image is arranged symmetrically with.In an embodiment of the present utility model, referring to Fig. 3, compound transmitting pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described the second transmitting crystal part and the second transformer portion are arranged symmetrically with about the axial midpoint mirror image of compound transmitting 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, during for acoustic logging, offset strata pressure, the structure of the utility model uniqueness is the compact space of saving not only, and the each cavity of effective UNICOM, after making oiling, fluid is full of the compound transmitting pipe nipple of array acoustic well logger device whole interior structure, assurance oil circuit is unimpeded, oil pressure equilibrium in loading process, in cavity, gas exhaust, completely without dead angle, reduces the impact that may produce instrument because of residual gas.
Fig. 4 shows the structure chart of emission shaft, has specifically illustrated main locating hole 41, main shaft oil line hole 42 and assist location hole 43.
The utility model is two emitting structurals, and it is symmetrical axial arranged that two transmitter units are main locating hole 41, and main locating hole 41 is arranged two on emission shaft, symmetrical along axis, is the main locating hole of mandrel part 301.Transmitting shafting oil line hole 42 on emission shaft, arrange four, symmetrical along axis and main locating hole 41 respectively, major function be cabling, excessively oil path.Assist location hole 43 is arranged four on emission shaft, symmetrical along axis and main locating hole 41 respectively, is the circumferential registration hole of transformer portion transmitting locking screw ring 808.
Fig. 5 shows the structure chart of transmitting mandrel, has specifically illustrated oil-through hole 509, main dowel hole 510 and end cap radial direction locating groove 511 between mandrel middle bench 501, mandrel oil line hole 502, mandrel assist location 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 is except also as the boundary section of the utility model pair emitting structurals as the effect of outside entrant sound cover being played to location, support, two transmitter units are mirror image assembling at mandrel middle bench 501 two ends, therefore the only support section 302 to mandrel middle bench 501 1 sides of this paper, transmitting crystal part 303, transformer portion 304 and entrant sound hood assembly structure are illustrated, and the structure of mirror image part is identical.Complete after assembling, the position in main dowel hole 510, mandrel oil line hole 502, mandrel assist location hole 503 and quantity and the main locating hole 41 of emission shaft, cable hole 42, assist location hole 43 are corresponding one by one.
The location structure of transmitting mandrel: corresponding with the main locating hole 41 of emission shaft when main dowel hole 510 assembles, be the main syndeton of the two assembling, transmitting crystal partial fixing draw-in groove 504, is that transmitting crystal part completes the axial positioning structure after installing; Transformer portion fixed card slot 505 is that transformer portion 34 completes the axial positioning structure after installing.Radial detents 506 is the main radial detents of the utility model link; Mandrel support slot 508 liner acoustic pads separate inner chamber 311 between formation mandrel by emission shaft and transmitting mandrel, play emission shaft and reduce as far as possible, the function of lowering apparatus noise.
The connectivity structure of transmitting mandrel: mandrel oil line hole 502 aligns with transmitting shafting oil line hole 42, links up mandrel chamber 305 and transformer inner chamber 308; Mandrel chamber oilhole 507 is linked up inner chamber 311 between mandrel chamber 305 and mandrel; Between transmitter unit, oil-through hole 509 is linked up the acoustic wave array transmitter unit of mandrel middle bench 501 both sides; This communication structure guarantees the unimpeded function that has cabling concurrently of both oil circuits.
Fig. 6 shows the assembly drawing of mandrel part 301, has specifically illustrated emission shaft 61, transmitting mandrel 62, assist location pin 63, transmitting 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 be that emission shaft 61 is sleeved in transmitting mandrel 62, by mandrel, support nonmetallic ring 314 every between emission shaft 61 and transmitting mandrel 62, make to form inner chamber 311 between mandrel between emission shaft 61 and transmitting mandrel 62, mandrel part 301 is main support structures of the each function element of the utility model.Entrant sound cover and support section 302, transmitting crystal part 303 and transformer portion 304 are installed in mandrel part 301.Emission shaft 61 effectively stops sound wave to the propagation of instrument mandrel partial interior and then has reduced the noise that signal is passed on by emission shaft with this structure being separated by mandrel support nonmetallic ring 314 of transmitting mandrel 62.
Fig. 7 A shows the assembly drawing of transmitting crystal part 303, has specifically illustrated transmitting crystal 701, crystal support set 702, transmitting crystal seat 703, rubber sound insulation, axially sound insulation, shock ring 704, check ring 705 and mirror image and has assembled transmitting crystal part 706.
Transmitting crystal part 303 is arranged in mandrel part 301, and 501 one-tenth mirror images of mandrel middle bench are arranged symmetrically with, and therefore this figure only disassembles a side and is illustrated, and transmitting crystal 701 is sound wave generating device of the present utility model, by piezoelectric ceramics or piezoelectric quartz, is made.Under the effect of pulse current, transmitter converts mechanical energy to electric energy, and launches with the form of sound wave.Crystal support sets 702 are installed at transmitting crystal 701 two ends, and transmitting crystal 701 and crystal support set 702 are axially, radially contact point arranges respectively rubber sound insulation, shock ring 704, plays sound insulation, avoid acoustic loss and crystal are played to the effect of vibration protection.Transmitting crystal seat 703, play the positioning action to whole transmitting crystal part 303,703 installations of transmitting crystal seat match with the transmitting crystal partial fixing draw-in groove 504 arranging on check ring 705 and transmitting mandrel, complete the axial location of whole transmitting crystal part, mirror image has assembled transmitting crystal part 706 and has assembled part for another transmitting crystal part of two transmitting mirror picture symmetries.
Fig. 7 B shows the structure chart of crystal support set 702, and wherein, crystal support set 702 concrete structures comprise: crystal radially insulates against sound, yielding rubber ring 707 and crystal support set oil wire casing 708.
Crystal radially insulates against sound, yielding rubber ring 707 radially playing sound insulation, is avoided acoustic loss between crystal support set 702 and transmitting crystal 701, and crystal is played to the effect of vibration protection.Crystal support set oil wire casing 708, the oily path of mistake of linking up between transmitting cover inner chamber 306 and crystal inner chamber 307, guarantees that oil circuit is unimpeded.
Fig. 7 C shows the structure chart of transmitting crystal seat 703, has specifically illustrated 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 and plays the effect of radial location with the radial detents 506 arranging on transmitting mandrel 62.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, specifically illustrated the transformer portion 801 that mirror image has assembled, it comprises transformer insulated holder 802, transmitting transformer 803, launches transformer insulated pad 804, transmitting bearing clip plate 805, thrust washer 806, transmitting bearing outer plate 807, transmitting locking screw ring 808 and check ring 809.
Referring to Fig. 3 and Fig. 5, transformer portion 304 is arranged in mandrel part 301, in mandrel middle bench 501 both sides, becomes mirror images to be arranged symmetrically with, and therefore Fig. 8 A only disassembles a side and is illustrated.The transformer portion 801 that mirror image has assembled is that another transformer portion of two transmitting mirror picture symmetries has been assembled part.Transformer insulated holder 802 is axially location seals of left and right of transmitting transformer 803 with the transformer insulated pad 804 of transmitting, 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, has guaranteed that transmitting transformer 803 and metal construction separate.
Transmitting transformer 803 provides power supply for the utility model transmitting crystal 701, determine must there is the path that connects wire between the two, another the utility model makes both adjacent, except necessary connection cutting function part, both coverages are the shortest, reduced conductor length, convenient connection reduced the interference of electromagnetic wave to signal simultaneously.Transmitting bearing clip plate 805, thrust washer 806, transmitting bearing outer plate 807, transmitting locking screw ring 808, check ring 809 is installed successively vertically, check ring 809 matches with transformer portion fixed card slot 505, make transformer portion 801 axial location, whole transformer portion 801 compresses by check ring 809 carries out axial location, on thrust washer 806 and transmitting bearing clip plate 805 contact surfaces, needle-like roller bearing is set, can do circumferential rolling on transmitting bearing clip plate 805 surfaces, reduce the rotation that in compaction process, frictional force causes, transmitting bearing clip plate 805 is arranged between the transformer insulated pad 804 of transmitting and thrust washer 806 and is provided protective effect to transformer insulated pad 804.Transmitting bearing outer plate 807 is that the installation carrier of thrust washer 806 is again the datum of the application of force and compression simultaneously.Outer end is slipped into transmitting locking screw ring 808 use check ring 809 application of forces compressions and is blocked.
On the small circle ring of transformer insulated holder 802 step ladder circular rings, overlap yielding rubber ring, play the effect of damping, the other end of yielding rubber ring be pressed in transmitting crystal seat 703 on transmitting crystal seat stand rank 713, the existence of transmitting crystal long slot bore 712 has guaranteed that assembling compresses the unimpeded of crystal inner chamber 307 and transformer inner chamber 308 oil circuits after yielding rubber ring, plays the effect of offsetting mismachining tolerance simultaneously.
Fig. 8 B shows the structure chart of the transformer insulated pad 804 of transmitting, has specifically illustrated 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 transmitting transformer 803 axial locating surfaces, thrust washer is the radial location face for transmitting transformer 803 axial locating surfaces to supporting surface 811 radially, felt pad oil wire casing 812 is linked up transmitting cover inner chamber 306 and transformer inner chamber 308, thereby guarantees the unimpeded of oil circuit.
Thus, transmitting crystal part 303, connection between transformer portion 304 relates to multiple connectors 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, has guaranteed between crystal inner chamber 307 and transformer inner chamber 308 the unimpeded of oil, circuit; That the crystal support set oil wire casing 708 of crystal support set 702 has guaranteed is oily between transmitting cover inner chamber 306 and crystal inner chamber 307, circuit unimpeded; That the felt pad oil wire casing 812 of launching transformer insulated pad 804 has guaranteed is oily between transmitting cover inner chamber 306 and transformer inner chamber 308, circuit unimpeded.
Fig. 8 C shows the structure chart of transmitting locking screw ring 808, has specifically illustrated locking screw ring seal face 813, alignment pin spacing hole 814, locking major thread 815, locking screw ring oil line hole 816, locking screw ring oil wire casing 817, locking screw loop mapping face 818, support ring jump-ring slot 819 and has been 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; Locking screw loop mapping face 818 is adjacent to mutually with the check ring 809 that install at transformer portion fixed card slot 505 places, forms transformer portion 304 axial positioning structures.
In alignment pin spacing hole 814 chambeies, position is assist location pin 63, and mandrel chamber 305 and transmitting locking screw ring inner chamber 312 are linked up in assist location hole 43; Locking screw ring oil line hole 816 is connected with alignment pin spacing hole 814, and communication transmitting locking screw ring inner chamber 312 and the first transmitting cover support inner chamber 309; Locking screw ring oil wire casing 817 links up transmitting locking screw ring inner chamber 312 and the second transmitting cover supports inner chamber 310, guarantees that respectively oil circuit is unimpeded.
Fig. 9 A shows the assembly drawing of entrant sound cover and support section 302, has specifically illustrated transmitting cover 901, rubber shock-absorbing ring 902, transmitting cover support ring 903, check ring 904, transmitting seal cover 905, check ring 906, mirror image and assemble support section 907 and transmitting and encircle support ring 908 in covering.
Mirror image has assembled support section 907 and has assembled part for another support section of two transmitting mirror picture symmetries.Suit transmitting cover 901, the internal thread of transmitting cover support ring 903 engages with the external screw thread of transmitting locking screw ring 808, between transmitting cover 901 and transmitting cover support ring 903, rubber shock-absorbing ring 902 is installed, check ring 904 has matched and has launched the axial location of cover support ring 903 with support ring jump-ring slot 819, transmitting seal cover 905 joins with transmitting locking screw ring 808, end cap connects step 820 and is provided with yielding rubber ring, and installation transmitting seal cover 905 use check rings 906 complete the last axial location of entrant sound cover and support section 302.
Fig. 9 B shows the structure chart of transmitting cover 901, has specifically illustrated transmitting cover radial indentation 909, transmitting cover axial groove 910 and transmitting cover inner face 911.
Transmitting cover 901 is made of metal, and has the effect of isolation mud.Instrument there will be liquefied gas to pass through the situation in rubber molecule gap infiltration instrument when underground work, and after instrument goes out well, LNG gasifaction can cause leather bag to expand, and damages leather bag when serious, thus the part of damage instrument probe inside.The utility model transmitting cover 901 is to replace leather bag parcel crystal to solve with above-mentioned problem with metal shell.
Transmitting cover radial indentation 909 compresses rubber shock-absorbing ring 902, and rubber shock-absorbing ring 902, under the choosing dress extruding of transmitting cover support ring 903, embeds transmitting cover radial indentation 909 and forms a transmitting cover 901 resistance radially, effectively stops transmitting cover 901 to rotate; Transmitting cover axial groove 910 is arranged symmetrically with two wall thickness that reduce transmitting cover 901, the utility model is the two emitting structurals of sound wave, two transmitting cover axial grooves 910 are corresponding one by one with two transmitting crystal 701 position relationships, transmitting cover axial groove 910 places have reduced transmitting cover 901 wall thickness, can effectively prevent that acoustic signals is in the 901 parts decay of entrant sound cover, the reducing of transmitting cover 901 local wall thickness makes that overall emission cover 901 intensity are unlikely is subject to larger impact.
Fig. 9 C shows the structure chart of transmitting cover support ring 903, has specifically illustrated 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 and spring jump-ring slot 918.
Fig. 9 D shows the structure chart of transmitting seal cover 905, has specifically illustrated 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 of transmitting locking screw ring 808 and compresses.End cap oil line half slot 922 plays the effect that communication the second transmitting cover supports inner chamber 310 and launches cover support ring inner chamber 313 after being connected step 820 compressions by rubber shock-absorbing ring with the end cap of transmitting locking screw ring 808 at end cap seal face 919.The in-built O RunddichtringO of end cap external seal ring recess 920 has contacted the effect of sealing with transmitting cover inner face 911.The in-built O RunddichtringO of end cap inner seal ring groove 921 has contacted the effect of sealing with emission shaft 61.Radial location projection 923 is docked with end cap radial direction locating groove 511, makes to launch seal cover 905 radial locations.
Those skilled in the art can recognize that extensive instruction of the present disclosure can implement according to various ways from illustrating above.Although the disclosure has comprised concrete example, true scope of the present disclosure should not be so limited, because those skilled in the art are studying the modification, distortion and the replacement that will be appreciated that other after accompanying drawing, manual and appended claims.
Claims (9)
1. the compound transmitting pipe nipple of an acoustic logging instrument, it is characterized in that comprising mandrel part, 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 in described mandrel part, 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. compound transmitting pipe nipple as claimed in claim 1, is characterized in that, described entrant sound cover and support section comprise transmitting cover, and described transmitting crystal part is placed in described transmitting cover, and described transmitting cover is made of metal.
3. compound transmitting pipe nipple as claimed in claim 2, is characterized in that, described transmitting cover has the wall thickness that part reduces, and reduces the decay of sound wave when through transmitting cover.
4. compound transmitting pipe nipple as claimed in claim 1, it is characterized in that, described compound transmitting pipe nipple also comprises the second transmitting crystal part and the second transformer portion, and described the second transmitting crystal part and the second transformer portion are arranged symmetrically with about the axial midpoint mirror image of described compound transmitting pipe nipple with described transmitting crystal part and transformer portion respectively.
5. compound transmitting pipe nipple as claimed in claim 1, it is characterized in that, described mandrel part comprises emission shaft and transmitting mandrel, described emission shaft is sleeved in described transmitting mandrel, mandrel supports nonmetallic ring every between described emission shaft and described transmitting mandrel, makes to form inner chamber between mandrel between described emission shaft and described transmitting mandrel.
6. compound transmitting pipe nipple as claimed in claim 5, it is characterized in that, described emission shaft comprises main locating hole, main shaft oil line hole and assist location hole, described transmitting mandrel comprises main dowel hole, mandrel oil line hole and mandrel assist location hole, and wherein, in the time of in described emission shaft is sleeved on described transmitting mandrel, described main locating hole aligns with described main dowel hole, aliging with described mandrel oil line hole in described main shaft oil line hole, and aligns with described mandrel assist location hole in described assist location hole.
7. compound transmitting pipe nipple as claimed in claim 1, it is characterized in that, described transformer portion comprises transformer insulated holder, transmitting transformer, launch transformer insulated pad, transmitting bearing clip plate, thrust washer, transmitting bearing outer plate, transmitting 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. compound transmitting pipe nipple as claimed in claim 7, is characterized in that, described transmitting locking screw is equipped with external screw thread, and described external screw thread engages with the internal thread of the transmitting cover support ring of described entrant sound cover and support section.
9. compound transmitting pipe nipple as claimed in claim 1, is characterized in that, described transmitting crystal part comprises transmitting crystal, and described transmitting crystal is made by piezoelectric ceramics or piezoelectric quartz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568296.8U CN203570306U (en) | 2013-09-13 | 2013-09-13 | Composite emitting short joint of acoustic logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568296.8U CN203570306U (en) | 2013-09-13 | 2013-09-13 | Composite emitting short joint of acoustic logging instrument |
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| Publication Number | Publication Date |
|---|---|
| CN203570306U true CN203570306U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568296.8U Expired - Fee Related CN203570306U (en) | 2013-09-13 | 2013-09-13 | Composite emitting short joint of acoustic logging instrument |
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| Country | Link |
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| CN (1) | CN203570306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453846A (en) * | 2013-09-13 | 2015-03-25 | 中国石油集团长城钻探工程有限公司 | Composite transmission nipple of sonic logging tool |
-
2013
- 2013-09-13 CN CN201320568296.8U patent/CN203570306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453846A (en) * | 2013-09-13 | 2015-03-25 | 中国石油集团长城钻探工程有限公司 | Composite transmission nipple of sonic logging tool |
| CN104453846B (en) * | 2013-09-13 | 2024-02-02 | 中国石油集团长城钻探工程有限公司 | Composite transmitting nipple of acoustic logging instrument |
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