CN220505023U - Acoustic wave acquisition device for testing liquid level of oil and gas well - Google Patents
Acoustic wave acquisition device for testing liquid level of oil and gas well Download PDFInfo
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- CN220505023U CN220505023U CN202420026280.2U CN202420026280U CN220505023U CN 220505023 U CN220505023 U CN 220505023U CN 202420026280 U CN202420026280 U CN 202420026280U CN 220505023 U CN220505023 U CN 220505023U
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- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an acoustic wave acquisition device for testing the liquid level of an oil-gas well, which comprises a sleeve joint, wherein a stepped notch and a stepped sinking groove are arranged on the ring body of the sleeve joint, a piezoelectric component is arranged at the bottommost part of the stepped notch, an end cover is fixed on the outer side of the piezoelectric component, a single-core socket and a socket protecting cover are arranged in the stepped sinking groove, the top end of the single-core socket extends out of the inner end cover of the socket protecting cover and is fixed by a nut, and a wire of the piezoelectric component extends into the stepped sinking groove after passing through a wire groove and a wire passing hole and is connected with the positive electrode at the upper end of the single-core socket, and the end cover is in clearance fit with the sleeve joint. The sound wave acquisition device adopts the metal matrix piezoelectric component, permeated gas can be released through a gap between the end cover and the sleeve joint, one end of the negative electrode of the piezoelectric component is prevented from being pressed and corroded by corrosive gas, the service life of the piezoelectric component is effectively prolonged, and the problems that the sensitivity of the microphone is reduced and even fails due to leakage of high-pressure gas are solved.
Description
Technical Field
The utility model relates to an acoustic wave acquisition device for testing the liquid level of an oil and gas well, and belongs to the technical field of liquid level depth testing of oil and gas wells.
Background
The underground liquid level depth is an important technological parameter in the production of an oil gas well, is an important basis for judging whether the oil gas well is normally produced and making a scientific oil gas development scheme, and is currently commonly used for oil pipe liquid level depth test by adopting an echo method. The conventional acoustic wave acquisition device generally receives acoustic wave signals through a microphone, the conventional microphone is generally of a cylindrical structure, the piezoelectric ceramic ring is encapsulated through rubber, under a high-pressure environment, gas in a well easily permeates into the microphone, so that the sensitivity of the microphone is reduced or even fails, and the conventional microphone is large in size and needs to be independently designed in an installation position, so that miniaturization of the product is limited.
Disclosure of Invention
The utility model aims to provide an acoustic wave acquisition device for testing the liquid level of an oil-gas well. The device solves the problems of low reliability and further reduced overall dimension of the device in the prior art, thereby overcoming the defects in the prior art.
The technical scheme of the utility model is as follows: the utility model provides a sound wave collection system for oil gas well liquid level test, including the inside sleeve pipe joint that is the through-hole structure, be provided with the notch of ladder type that switches on with inside and 1 notch type heavy groove on the ring body of sleeve pipe joint, the piezoelectric component is installed to notch bottom of ladder type, the piezoelectric component outside is fixed to be provided with the end cover, the bottom surface is provided with the bulge loop in the end cover, the bulge loop supports on the surface of piezoelectric component, be provided with the wire casing in the bulge loop that is close to notch type heavy groove, the wire casing is connected with notch type heavy groove after the wire casing passes through the wire hole on the sleeve pipe joint, install single core socket in the minor diameter heavy groove of notch type heavy groove, fixedly installed the socket protecting cover in the pitch diameter heavy groove of notch type heavy groove, single core socket's top stretches out to the inner end cover outside, and fix it with the nut, the wire of piezoelectric component stretches into in the notch type heavy groove and is connected with the anodal of single core socket upper end after wire casing, be clearance fit between end cover and the sleeve pipe joint, the end cover, single core protecting cover, the socket protecting cover and piezoelectric component are metal component;
the piezoelectric assembly comprises a metal substrate, wherein a piezoelectric ceramic plate is stuck in a bottom surface sinking groove of the metal substrate, the negative end face of the piezoelectric ceramic plate is attached to the inner bottom surface of the bottom surface sinking groove of the metal substrate, a lead is connected to the positive end face of the piezoelectric ceramic plate, the lead penetrates through a wire passing through hole of the metal substrate, and insulating paint is arranged on the outer end faces of the piezoelectric ceramic plate and the metal substrate.
In the acoustic wave collecting device for testing the liquid level of the oil and gas well, the 2 ladder-shaped notches are symmetrically arranged with the central axis of the sleeve joint as the center, the outer wall of the sleeve joint at the outer side of the ladder-shaped notch is also provided with a sealing groove, and an O-shaped sealing ring is arranged in the sealing groove.
In the acoustic wave acquisition device for testing the liquid level of the oil and gas well, the end cover is fixed on the sleeve joint through the first screw.
In the acoustic wave acquisition device for testing the liquid level of the oil and gas well, the outer side of the insulating paint is also provided with a polytetrafluoroethylene film.
In the above-mentioned sound wave collecting device for testing the liquid level of the oil-gas well, the outer end surface of the socket protecting cover is higher than the single-core socket.
In the above-mentioned sound wave collecting device for testing the liquid level of the oil-gas well, the outer wall of the socket protecting cover is provided with a mounting ring, and the mounting ring is supported on the outermost step of the stepped sink and is fixed by a second screw.
In the acoustic wave acquisition device for testing the liquid level of the oil and gas well, threads are arranged at two ends of the sleeve joint.
The utility model has the beneficial effects that: compared with the prior art, the sound wave acquisition device has the following advantages:
a) The sound wave acquisition device adopts the metal matrix piezoelectric assembly, permeated gas can be released through a gap between the end cover and the sleeve joint, so that one end of the negative electrode of the piezoelectric assembly is prevented from being pressed and corroded by corrosive gas, the service life of the piezoelectric assembly is effectively prolonged, and the problems of reduced sensitivity and even failure of the microphone caused by leakage of high-pressure gas are solved;
b) The piezoelectric component is arranged on the sleeve joint, so that the external space of the sleeve joint is fully utilized, the external dimension of the device is further reduced, and the volume and the weight of the instrument are effectively reduced.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 taken along the direction A-A;
fig. 4 is a schematic structural view of a piezoelectric assembly.
Reference numerals: 1-sleeve joint, 2-first screw, 3-end cover, 4-socket protecting cover, 5-single-core socket, 6-nut, 7-piezoelectric component, 8-O-shaped sealing ring, 9-wire passing groove, 10-wire passing hole, 11-wire, 12-metal matrix, 13-piezoelectric ceramic piece, 14-insulating paint, 15-polytetrafluoroethylene film and 16-second screw.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
Embodiments of the utility model: 1-4, a sound wave collecting device for testing the liquid level of an oil-gas well, which comprises a sleeve joint 1 with a through hole structure inside, wherein a stepped round notch and 1 stepped sinking groove which are communicated with the inside are arranged on the ring body of the sleeve joint 1, a piezoelectric component 7 is arranged at the bottommost part of the stepped notch, namely, the piezoelectric component 7 is arranged at the bottommost step in the stepped notch and shields the stepped notch, an end cover 3 is fixedly arranged at the outer side of the piezoelectric component 7, 1 convex ring is arranged on the inner bottom surface of the end cover 3, a cavity structure is formed inside the convex ring, a wire 11 of the piezoelectric component 7 conveniently penetrates through the cavity structure and enters a wire passing groove 9 of the convex ring, the convex ring is supported on the surface of the piezoelectric component 7, the piezoelectric component 7 is fixed through the end cover 3, the wire passing groove 9 is arranged in the convex ring which is close to the stepped sinking groove, the wire passing groove 9 is communicated with the stepped sinking groove of the sleeve joint 1 after passing through the wire passing hole 10 on the sleeve joint 1, the single-core socket 5 is arranged in the small-diameter sinking groove of the stepped sinking groove, the single-core socket 5 can be just put into the small-diameter sinking groove, thereby the limit of the single-core socket 5 is realized through the small-diameter sinking groove, the socket protecting cover 4 is fixedly arranged in the middle-diameter sinking groove of the stepped sinking groove, a gap exists between the bottom of the socket protecting cover 4 and the bottom surface of the middle-diameter sinking groove, the outer diameter of the socket protecting cover 4 is larger than the outer diameter of the single-core socket 5, the cavity structure is also formed between the socket protecting cover 4 and the single-core socket 5, the wire 11 of the piezoelectric component 7 passes through the gap between the bottom of the socket protecting cover 4 and the bottom surface of the middle-diameter sinking groove after passing through the wire passing hole 10 on the sleeve joint 1 and stretches into the cavity between the socket protecting cover 4 and the single-core socket 5, the top end of the single-core socket 5 stretches out of the inner end cover of the single-core socket protecting cover 4, the head end thread that single core socket 5 stretches out cup joints nut 6 to fix single core socket 5 through nut 6. The lead 11 of the piezoelectric component 7 passes through the wire groove 9 and the wire through hole 10, then stretches into the stepped sinking groove and is connected with the positive electrode at the upper end of the single-core socket 5, the end cover 3 is in clearance fit with the sleeve joint 1, and the sleeve joint 1, the end cover 3, the socket protecting cover 4, the single-core socket 5 and the piezoelectric component 7 are all metal components.
The piezoelectric assembly 7 comprises a metal substrate 12, a piezoelectric ceramic piece 13 is stuck in a bottom surface sinking groove of the metal substrate 12, the negative end face of the piezoelectric ceramic piece 13 is attached to the inner bottom surface of the bottom surface sinking groove of the metal substrate 12, a lead 11 is connected to the positive end face of the piezoelectric ceramic piece 13, the lead 11 penetrates through a wire passing through hole of the metal substrate 12, and insulating paint 14 is arranged on the piezoelectric ceramic piece 13 and the outer end face of the metal substrate 12.
The step-shaped notch for installing the piezoelectric assembly 7 and the step-shaped sinking groove for installing the socket protecting cover 4 are all enough to be arranged at any position on the ring body of the sleeve joint 1, so long as the step-shaped notch and the step-shaped sinking groove are ensured to be communicated through the wire passing groove 9 and the wire passing hole 10.
The 2 ladder-type gaps are symmetrically arranged by taking the central axis of the sleeve joint 1 as the center, and each ladder-type gap is provided with 1 piezoelectric component 7, so that the sensitivity of the acoustic wave acquisition device can be improved.
The outer wall of the sleeve joint 1 outside each step-shaped notch is also provided with 1 sealing groove, and an O-shaped sealing ring 8 is arranged in the sealing groove. Sealing of the stepped notch is achieved through the O-shaped sealing ring 8, and casing gas of the oil-gas well is isolated from the atmosphere.
The end cover 3 is fixed on the sleeve joint 1 through the first screw 2, so that the end cover 3 is fixedly installed.
The outer side of the insulating paint 14 is also provided with a polytetrafluoroethylene film 15, and the polytetrafluoroethylene film 15 can effectively protect the insulating paint 14 from being damaged.
The outer end face of the socket protecting cover 4 is higher than the top face of the single-core socket 5, and the single-core socket 5 can be effectively protected from being damaged.
The outer wall of the socket protecting cover 4 is provided with a mounting ring, and the mounting ring is supported on the outermost step of the stepped sinking groove and is fixed by a second screw 16, so that the socket protecting cover 4 is fixedly mounted.
The two ends of the sleeve joint 1 are provided with threads, and the sleeve joint is connected with other devices.
The sleeve joint 1 of the utility model has one end provided with the sleeve thread, can be directly connected to an oil-gas well wellhead, and the other end provided with the thread can be connected with various types of sound wave generators according to the needs, and the threads at the two ends and the central hole are coaxial, thereby greatly reducing the processing difficulty of parts. When the sleeve joint 1 is assembled, the O-shaped sealing ring 8 is firstly arranged in the sealing groove of the sleeve joint 1, then the piezoelectric component 7 is arranged, the positive electrode side of the piezoelectric component 7 is inwards arranged, and the lead 11 of the piezoelectric component 7 passes through the wire through hole 10 of the sleeve joint 1. When the end cover 3 is installed, the side, which is provided with the wire passing groove 9, is placed close to the side, which is provided with the wire passing hole 10, of the sleeve joint 1, the wire passing groove 9 of the end cover 3 can ensure that the wire 11 of the piezoelectric assembly 7 is not damaged, then the end cover 3 is fixed on the sleeve joint 1 through the first screw 2, the piezoelectric assembly 7 is compressed through the end cover 3, sealing is realized through the O-shaped sealing ring 8, and sleeve gas of an oil-gas well is isolated from the atmosphere. The end cover 3 is in clearance fit with the sleeve joint 1, and slowly permeated gas can be released through a clearance between the end cover 3 and the sleeve joint 1, so that one end of the negative electrode of the piezoelectric assembly 7 is prevented from being corroded by pressure and corrosive gas, and the service life of the piezoelectric assembly 7 is effectively prolonged. In order to improve the sensitivity of the sound wave acquisition device, 2 identical piezoelectric assemblies 7 are mounted on the sleeve joint 1, the wires 11 of the 2 piezoelectric assemblies 7 are welded to the positive electrode of the single-core socket 5 in parallel, the topmost end of the single-core socket 5 is the negative electrode of the single-core socket, and the single-core socket 5 is fixed to the inner end cover of the socket protecting cover 4 by using the nut 6, so that the connection between the negative electrode of the single-core socket 5 and the socket protecting cover 4 is realized, and the outer end surface of the socket protecting cover 4 is higher than the single-core socket 5, so that the single-core socket 5 can be effectively protected from being bumped.
The sound wave acquisition device is used for receiving sound waves and converting the sound waves into electric signals, and the PZT-5H piezoelectric ceramic has very high receiving sensitivity and strong induction characteristic on excitation signals. Therefore, as shown in fig. 4, the piezoelectric assembly 7 is formed by welding the lead 11 to the edge of the polarized piezoelectric ceramic piece 13 by using a circular PZT-5H piezoelectric ceramic piece, wherein the end face of the piezoelectric ceramic piece 13 welded with the lead 11 is the positive electrode, and the end face of the non-welded lead 11 is the negative electrode. Then the lead 11 passes through the wire through hole of the metal matrix 12, and then the negative end face of the piezoelectric ceramic piece 13 is stuck on the inner end face of the metal matrix 12 through conductive adhesive, so that the negative electrode of the piezoelectric ceramic piece 13 is tightly adhered to the metal matrix 12 and is electrically conducted, as the top end of the single-core socket 5 is contacted with the socket protecting cover 4, the socket protecting cover 4 is arranged on the socket joint 1, the socket joint 1 is contacted with the piezoelectric component 7, and the metal matrices 12 of the socket joint 1, the socket protecting cover 4, the single-core socket 5 and the piezoelectric component 7 are all metal components, so that the negative electrode of the single-core socket 5 can be conducted through the metal matrix 12 to form a loop. After the piezoelectric ceramic piece 13 is adhered, the piezoelectric ceramic piece 13 is flush with the outer end face of the metal matrix 12, insulating paint 14 is uniformly sprayed on the outer end faces of the piezoelectric ceramic piece 13 and the metal matrix 12, the thickness of the insulating paint 14 is not more than 0.2mm, a polytetrafluoroethylene film 15 is adhered to the surface after the insulating paint 14 is dried, and the polytetrafluoroethylene film 15 can effectively protect the insulating paint 14 from being damaged.
Claims (7)
1. A sound wave collection system for oil gas well liquid level test, its characterized in that: the device comprises a sleeve joint (1) with a through hole structure inside, wherein a stepped notch and 1 stepped sink groove which are communicated with the inside are arranged on a ring body of the sleeve joint (1), a piezoelectric assembly (7) is arranged at the bottommost part of the stepped notch, an end cover (3) is fixedly arranged at the outer side of the piezoelectric assembly (7), a convex ring is arranged on the inner bottom surface of the end cover (3), the convex ring is supported on the surface of the piezoelectric assembly (7), a wire passing groove (9) is arranged in the convex ring which is close to the stepped sink groove, the wire passing groove (9) is communicated with the stepped sink groove after passing through a wire passing hole (10) on the sleeve joint (1), a single-core socket (5) is arranged in the small-diameter sink groove of the stepped sink groove, a socket protecting cover (4) is fixedly arranged in the middle-diameter sink groove of the stepped sink groove, the top end of the single-core socket (5) extends out of the inner end cover of the socket protecting cover and is fixedly fixed by a nut (6), a wire (11) of the piezoelectric assembly (7) extends into the stepped sink groove through the wire passing hole (9) and then passes through the wire passing hole (10) and is connected with the positive end of the single-core socket (5) and the single-core protecting cover (4), and the metal end cover (1) are matched with the end cover (1) and the single-core electrode member (4), and the metal end cover (1) are matched with the end cover and the metal end cover;
the piezoelectric assembly (7) comprises a metal substrate (12), wherein a piezoelectric ceramic piece (13) is stuck in a bottom surface sinking groove of the metal substrate (12), the negative end face of the piezoelectric ceramic piece (13) is attached to the inner bottom surface of the bottom surface sinking groove of the metal substrate (12), a lead (11) is connected to the positive end face of the piezoelectric ceramic piece (13), the lead (11) penetrates through a wire passing through hole of the metal substrate (12), and insulating paint (14) is arranged on the outer end faces of the piezoelectric ceramic piece (13) and the metal substrate (12).
2. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: the 2 ladder-shaped notches are symmetrically arranged by taking the central axis of the sleeve joint (1) as the center, the outer wall of the sleeve joint (1) at the outer side of the ladder-shaped notch is also provided with a sealing groove, and an O-shaped sealing ring (8) is arranged in the sealing groove.
3. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: the end cover (3) is fixed on the sleeve joint (1) through a first screw (2).
4. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: and a polytetrafluoroethylene film (15) is further arranged on the outer side of the insulating paint (14).
5. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: the outer end face of the socket protecting cover (4) is higher than the single-core socket (5).
6. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: the outer wall of the socket protecting cover (4) is provided with a mounting ring which is supported on the outermost step of the stepped sinking groove and is fixed by a second screw (16).
7. The acoustic wave acquisition device for oil and gas well liquid level testing according to claim 1, wherein: threads are arranged at two ends of the sleeve joint (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420026280.2U CN220505023U (en) | 2024-01-05 | 2024-01-05 | Acoustic wave acquisition device for testing liquid level of oil and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420026280.2U CN220505023U (en) | 2024-01-05 | 2024-01-05 | Acoustic wave acquisition device for testing liquid level of oil and gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505023U true CN220505023U (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420026280.2U Active CN220505023U (en) | 2024-01-05 | 2024-01-05 | Acoustic wave acquisition device for testing liquid level of oil and gas well |
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| Country | Link |
|---|---|
| CN (1) | CN220505023U (en) |
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- 2024-01-05 CN CN202420026280.2U patent/CN220505023U/en active Active
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