CN111335858A

CN111335858A - Steam cavity monitoring device

Info

Publication number: CN111335858A
Application number: CN201811551108.4A
Authority: CN
Inventors: 潘勇; 段胜男; 游红娟; 王宁博; 陈森; 汪志; 芦志伟; 努尔买买提·吾买尔江; 李士建; 黄勇
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2020-06-26
Anticipated expiration: 2038-12-18
Also published as: CN111335858B

Abstract

The invention provides a steam cavity monitoring device, which comprises: the side wall of the shell is provided with a plurality of sound transmission structures, and the sound transmission structures are arranged along the length direction of the shell; the optical fiber hydrophones are arranged in the cavity of the shell along the length direction of the shell, and the optical fiber hydrophones and the sound transmission structures are arranged in a one-to-one correspondence manner; and the continuous oil pipe is connected with one end of the shell. Like this accessible coiled tubing is gone into a plurality of optic fibre hydrophones down in the pit shaft to can use the little seismic wave of optic fibre hydrophone monitoring reservoir in, can monitor the steam chamber like this more accurately, in order to obtain the development law in steam chamber.

Description

Steam cavity monitoring device

Technical Field

The invention relates to the technical field of oil and gas field exploration and development, in particular to a steam cavity monitoring device.

Background

In the development process of SAGD (steam assisted gravity drainage), the understanding of the development rule of the steam cavity and the accurate mastering of the spreading form and speed of the front edge of the steam cavity are important foundations for the successful development of SAGD. At present, four-dimensional earthquake, inclinometer or potential method, numerical simulation and other methods are generally adopted at home to know the development rule of the steam cavity, the defects of high cost, poor continuity, model limitation and the like exist, the monitoring on the steam cavity is not accurate enough, and the production requirement cannot be met. In the process of steam injection in SAGD development, along with the rise of bottom hole pressure, the front edge of flowing pressure in a reservoir stratum moves and the fluid pressure in pores is transmitted, micro cracks are induced to be generated, and then a series of micro seismic waves which propagate to the periphery are generated.

Disclosure of Invention

The invention provides a steam cavity monitoring device, which aims to solve the problem that monitoring of a steam cavity is inaccurate in the prior art.

In order to solve the above problems, the present invention provides a steam chamber monitoring device, including: the side wall of the shell is provided with a plurality of sound transmission structures, and the sound transmission structures are arranged along the length direction of the shell; the optical fiber hydrophones are arranged in the cavity of the shell along the length direction of the shell, and the optical fiber hydrophones and the sound transmission structures are arranged in a one-to-one correspondence manner; and the continuous oil pipe is connected with one end of the shell.

Further, the sound-transmitting structure comprises a plurality of sound-transmitting holes which are arranged at intervals along the circumferential direction of the shell.

Further, the shell is made of metal materials, and the other end of the shell is of a conical closed structure.

Further, each fiber optic hydrophone is fixed to the inner wall of the housing by a connector.

Further, steam chamber monitoring devices still includes: and the transition joint penetrates through the shell, and two adjacent optical fiber hydrophones are connected through the transition joint.

Further, steam chamber monitoring devices still includes: the splicing joint penetrates through the shell, is of a hollow structure, and is connected with the optical fiber hydrophone through the splicing joint.

Further, steam chamber monitoring devices still includes: the hose, the splicing joint are connected with the optical fiber hydrophone through the hose, and optical fibers led out of the optical fiber hydrophone can sequentially penetrate through the hose, the splicing joint and the transition joint.

Further, steam chamber monitoring devices still includes: and the coiled tubing is connected with the shell through the adapter.

Further, the fiber optic hydrophone includes: an acoustically transparent sleeve, which is acoustically transparent; the hydrophone unit penetrates through the sound-transmitting sleeve; the support shaft is connected with the hydrophone element, and the first end of the sound-transmitting sleeve is sleeved on the support shaft; the second end of the sound-transmitting sleeve is sleeved on the supporting seat.

Furthermore, the support shaft is of a hollow structure, the cavity of the support shaft is used for penetrating the optical fibers, the side wall of the support shaft is provided with an injection hole, and the injection hole is used for injecting liquid into the cavity between the support shaft and the sound transmission sleeve.

Further, have first spacing protruding muscle on the outer circumference of back shaft, first spacing protruding muscle is used for carrying on spacingly to the sound-transparent sleeve, and optic fibre hydrophone still includes: the first winding wire is wound on the first end of the sound-transmitting sleeve so as to fixedly connect the first end of the sound-transmitting sleeve with the support shaft.

Furthermore, the support shaft comprises a first shaft section and a second shaft section, the diameter of the first shaft section is larger than that of the second shaft section, the first end of the sound-transmitting sleeve is sleeved on the first shaft section, and the second shaft section penetrates through the hydrophone element and the support seat.

Further, the support shaft further includes: and the limiting ring is arranged on the outer circumference of the second shaft section and is used for being abutted against one end of the hydrophone element.

Further, the outer circumference of supporting seat has the spacing protruding muscle of second, and the spacing protruding muscle of second is used for carrying on spacingly to the sound-transparent sleeve, and optic fibre hydrophone still includes: and the second winding wire is wound at the second end of the sound-transmitting sleeve so as to fixedly connect the second end of the sound-transmitting sleeve with the supporting seat.

Further, the acoustically transparent sleeve is made of neoprene or butyl rubber.

Further, the fiber optic hydrophone further comprises: and the protective cap is arranged on the support shaft and positioned in the sound-transmitting sleeve, and the optical fiber led out from the hydrophone element is connected with the optical fiber led out from the support shaft in the protective cap.

By applying the technical scheme of the invention, the plurality of optical fiber hydrophones are arranged in the length direction in the shell of the steam cavity monitoring device and are connected with one end of the shell through the continuous oil pipe, so that the plurality of optical fiber hydrophones can be lowered into the shaft through the continuous oil pipe, the optical fiber hydrophones can be used for monitoring the micro seismic waves in the reservoir, and the steam cavity can be monitored more accurately to obtain the development rule of the steam cavity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a vapor chamber monitoring device provided by an embodiment of the invention;

FIG. 2 shows a cross-sectional view of FIG. 1 at a transition joint and a splicing joint;

FIG. 3 shows a schematic structural view of the transition joint of FIG. 2;

FIG. 4 shows a schematic diagram of the fiber optic hydrophone of FIG. 1;

FIG. 5 shows a cross-sectional view of FIG. 4;

fig. 6 shows a schematic structural view of the support shaft of fig. 4.

Wherein the figures include the following reference numerals:

110. a housing; 111. an acoustically transparent structure; 120. a coiled tubing; 130. a connecting member; 140. a transition joint; 150. splicing the joint; 160. a hose; 170. a crossover sub; 180. an optical fiber;

210. an acoustically transparent sleeve; 220. a hydrophone element; 230. a support shaft; 231. an injection hole; 232. a first limit convex rib; 233. a first shaft section; 234. a second shaft section; 235. a limiting ring; 240. a supporting seat; 241. a second limit convex rib; 251. a first winding wire; 252. a second winding wire; 260. a fastener; 270. a seal ring; 280. a protective cap.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, an embodiment of the present invention provides a vapor chamber monitoring device, including: a cylindrical housing 110, a plurality of sound-transmitting structures 111 being provided on a side wall of the housing 110, the plurality of sound-transmitting structures 111 being arranged along a length direction of the housing 110; the plurality of optical fiber hydrophones are arranged in the cavity of the shell 110 along the length direction of the shell 110, and the plurality of optical fiber hydrophones and the plurality of sound transmitting structures 111 are arranged in a one-to-one correspondence manner; and a coiled tubing 120 connected to one end of the outer casing 110.

By applying the technical scheme of the invention, the plurality of optical fiber hydrophones are arranged in the length direction in the shell 110 of the steam cavity monitoring device and are connected with one end of the shell 110 through the coiled tubing 120, so that the plurality of optical fiber hydrophones can be lowered into a shaft (the shaft is positioned in the steam cavity) through the coiled tubing 120, and the optical fiber hydrophones can be used for monitoring the micro seismic waves in a reservoir stratum, so that the steam cavity can be monitored more accurately to obtain the development rule of the steam cavity. The shell 110 may serve to isolate the fiber optic hydrophone from the outside world but maintain sound transmission, and may also be a load-bearing tensile member of the vapor chamber monitoring device as a whole, and may additionally serve to connect the fiber optic hydrophone to the optical fiber and protect the optical fiber solder joint on the internal structure. During field operation, the fiber optic hydrophone array is lowered to a specified position by the coiled tubing truck in a coiled tubing 120 lowering mode for monitoring operation.

In this embodiment, the acoustically transparent structure 111 includes a plurality of acoustically transparent apertures that are spaced apart along the circumference of the outer shell 110. Therefore, the shell 110 can protect the optical fiber hydrophone and enable sound waves to pass through smoothly, so that the monitoring effect of the optical fiber hydrophone is ensured.

In the present embodiment, the housing 110 is made of a metal material, and the other end of the housing 110 is a tapered closed structure. The outer case 110 is made of a metal material to secure structural strength. For example, the housing 110 may be made of stainless steel. The other end of the housing 110 is set to be a conical closed structure, so that the steam cavity monitoring device can be conveniently extended into the oil reservoir.

Specifically, in this embodiment, 316L stainless steel is used as the material of the housing 110 to provide protection for the fiber optic hydrophone, and the diameter of the sound-transmitting hole is 1.6 to 2mm, so that the sound-transmitting hole is matched with the characteristic acoustic impedance of water, and the sound-transmitting rate is greater than 95%.

In this embodiment, each fiber optic hydrophone is secured to the inner wall of the housing 110 by a connector 130. This prevents the fiber optic hydrophone from rattling. Each fiber optic hydrophone may be secured to the inner wall of the housing 110 by a plurality of connectors 130. The connection member 130 may use a screw.

As shown in fig. 2 and 3, the vapor chamber monitoring device further includes: and the transition joint 140 is arranged in the shell 110 in a penetrating way, and two adjacent fiber hydrophones are connected through the transition joint 140. This facilitates the formation of an array structure from a plurality of fiber optic hydrophones. The transition joint 140 is provided with a small hole, the optical fiber in each optical fiber hydrophone is connected with the demodulator through the transition joint 140, the optical fiber penetrates through the small hole, the small hole is filled with epoxy resin glue to seal the optical fiber, and the left cavity and the right cavity of the transition joint 140 are isolated, so that the sealing effect is achieved.

In this embodiment, steam chamber monitoring devices still includes: the splicing joint 150 penetrates through the shell 110, the splicing joint 150 is of a hollow structure, and the transition joint 140 is connected with the optical fiber hydrophone through the splicing joint 150. Threading of the optical fibers is facilitated by the splice 150.

In this embodiment, steam chamber monitoring devices still includes: the hose 160 and the splice 150 are connected to the fiber optic hydrophone via the hose 160, and the optical fibers 180 extending from the fiber optic hydrophone can be sequentially threaded through the hose 160, the splice 150 and the transition joint 140. Through the arrangement, two adjacent optical fiber hydrophones can be conveniently connected, and the optical fiber 180 can be well protected. The multi-stage optical fiber hydrophone probes are connected in series by a hose 160 and protect the optical fibers. The distance between every two stages of optical fiber hydrophones is 0.5 to 2 meters according to different well depth. The multiple optical fibers are sealed by epoxy resin glue at the transition joint 140, so that the underground pressure and the ground pressure are isolated.

In this embodiment, steam chamber monitoring devices still includes: the crossover sub 170, the coiled tubing 120 is connected to the housing 110 by the crossover sub 170. This may facilitate connection of the coiled tubing 120 to the housing 110.

As shown in fig. 4 to 6, the fiber optic hydrophone includes: an acoustically transparent sleeve 210 that is acoustically transparent; a hydrophone element 220 inserted into the acoustically transparent sleeve 210; a support shaft 230 connected to the hydrophone unit 220, wherein a first end of the acoustically transparent sleeve 210 is sleeved on the support shaft 230; the support base 240 and the second end of the acoustically transparent sleeve 210 are fitted over the support base 240. Therein, the hydrophone elements 220 are sensors capable of detecting microseismic waves. An acoustic-transparent sleeve 210, a hydrophone element 220, a supporting shaft 230 and a supporting seat 240 are arranged in the optical fiber hydrophone, so that the hydrophone element 220 can be protected and supported by the acoustic-transparent sleeve 210, the supporting shaft 230 and the supporting seat 240, and the optical fiber hydrophone can be applied to an oil reservoir environment to monitor a steam cavity. Therefore, the fiber optic hydrophone can be used for monitoring the micro seismic waves in the reservoir, and the steam cavity can be accurately monitored so as to obtain the development rule of the steam cavity.

Specifically, the support shaft 230 is a hollow structure, the cavity of the support shaft 230 is used for the optical fiber to pass through, the sidewall of the support shaft 230 is provided with an injection hole 231, and the injection hole 231 is used for injecting liquid into the cavity between the support shaft 230 and the sound-transmitting sleeve 210. In the using process, because the fiber optic hydrophone needs to be placed underground at different depths, the environmental pressure is different, so that the pressure in the sound-transmitting sleeve 210 of the fiber optic hydrophone needs to be adjusted to balance with the external pressure, otherwise, the performance of the fiber optic hydrophone is affected. At this time, a pressure balance medium such as acoustically transparent silicone oil may be injected into the acoustically transparent sleeve 210 by connecting the hollow support shaft 230 through a specific hydraulic control system, and a balance pressure may be set in advance. Therefore, the internal pressure of the optical fiber hydrophone can be adjusted as required, and the underground environmental pressure is balanced after the optical fiber hydrophone enters the well, so that the sensitivity of the hydrophone element 220 is not influenced by the environmental pressure.

As shown in fig. 4, the supporting shaft 230 has a first limiting rib 232 on the outer circumference thereof, the first limiting rib 232 is used for limiting the sound-transparent sleeve 210, and the optical fiber hydrophone further includes: and a first winding wire 251 wound around the first end of the acoustic sleeve 210 to fixedly connect the first end of the acoustic sleeve 210 with the support shaft 230. Such that the first limiting rib 232 limits the position of the sound-transmitting sleeve 210. Moreover, the first limiting convex rib 232 may be provided in plurality, and the first winding wire 251 may be wound in the groove between two adjacent first limiting convex ribs 232 to improve the fixing effect.

In this embodiment, the supporting shaft 230 includes a first shaft section 233 and a second shaft section 234, the diameter of the first shaft section 233 is greater than the diameter of the second shaft section 234, the first end of the sound-transmitting sleeve 210 is sleeved on the first shaft section 233, and the second shaft section 234 is inserted through the hydrophone element 220 and the supporting seat 240. This allows the support shaft 230, the hydrophone elements 220 and the support base 240 to be connected together, which improves the structural strength of the fiber optic hydrophone.

In the present embodiment, the support shaft 230 further includes: and a limiting ring 235 arranged on the outer circumference of the second shaft section 234, wherein the limiting ring 235 is used for abutting against one end of the hydrophone element 220. The hydrophone elements 220 may be restrained by a restraint ring 235.

In this embodiment, the fiber optic hydrophone further includes: and a fastener 260 attached to the second shaft section 234, the fastener 260 being used to retain the other end of the hydrophone element 220. This secures the hydrophone element 220 to the second shaft section 234 by the cooperation of the fasteners 260 and the stop collar 235. In particular, the fastener 260 may be provided as a nut.

In this embodiment, the supporting base 240 has an annular groove therein, and the optical fiber hydrophone further includes: and a seal ring 270 fitted over the second shaft section 234 and engaging the annular groove. The sealing effect of the second shaft section 234 and the supporting seat 240 can be improved by providing the sealing ring 270.

In this embodiment, the outer circumference of the supporting base 240 has a second limiting rib 241, the second limiting rib 241 is used for limiting the sound-transmitting sleeve 210, and the optical fiber hydrophone further includes: a second wrapping wire 252 is wrapped around the second end of the acoustically transparent sleeve 210 to fixedly couple the second end of the acoustically transparent sleeve 210 to the support base 240. Such that the second limiting rib 241 limits the position of the sound-transmitting sleeve 210. Moreover, the second limit beads 241 may be provided in plurality, and the second winding wire 252 may be wound in the groove between two adjacent second limit beads 241 to improve the fixing effect.

In the present embodiment, the sound-transmitting sleeve 210 is made of neoprene or butyl rubber, and has acoustic impedance characteristics well matched with water, good water tightness, extremely low water absorption and water permeability, and a long service life.

In this embodiment, the fiber optic hydrophone further includes: and a protective cap 280 disposed on the support shaft 230 within the acoustically transparent sleeve 210, the optical fibers exiting from the hydrophone cell 220 being connected to the optical fibers exiting from the support shaft 230 within the protective cap 280. The protective cap 280 can be soldered to the instrument at the splice 150 to provide a connection and protection.

The optical fiber hydrophone is an underwater acoustic signal sensor established on the basis of optical fiber and photoelectron technologies, converts underwater acoustic vibration into optical signals through high-sensitivity optical coherent detection, and transmits the optical signals to a signal processing system through optical fibers to extract the acoustic signals. At present, the optical fiber hydrophone is mainly used for marine underwater monitoring and is not suitable for microseism monitoring of oil and gas field exploration and development. Through the technical scheme, the optical fiber hydrophone can be applied to monitoring the micro seismic waves caused by the steam cavity, so that the development rule of the steam cavity and the front edge distribution form and speed of the steam cavity can be better known and predicted.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Claims

1. A vapor chamber monitoring device, comprising:

the sound-transmitting structure comprises a columnar shell (110), wherein a plurality of sound-transmitting structures (111) are arranged on the side wall of the shell (110), and the plurality of sound-transmitting structures (111) are arranged along the length direction of the shell (110);

the optical fiber hydrophones are arranged in a cavity of the shell (110) along the length direction of the shell (110), and the optical fiber hydrophones and the sound-transmitting structures (111) are arranged in a one-to-one correspondence manner;

a coiled tubing (120) connected to one end of the housing (110).

2. The vapor chamber monitoring device of claim 1, wherein the acoustically transparent structure (111) includes a plurality of acoustically transparent apertures spaced circumferentially along the housing (110).

3. The vapor chamber monitoring device of claim 2, wherein the housing (110) is made of a metal material, and the other end of the housing (110) is a tapered closed structure.

4. The vapor chamber monitoring device of claim 1, wherein each of the fiber optic hydrophones is secured to an inner wall of the housing (110) by a connector (130).

5. The vapor chamber monitoring device of claim 1, further comprising:

and the transition joint (140) is arranged in the shell (110) in a penetrating manner, and two adjacent optical fiber hydrophones are connected through the transition joint (140).

6. The vapor chamber monitoring device of claim 5, further comprising:

the splicing joint (150) penetrates through the shell (110), the splicing joint (150) is of a hollow structure, and the transition joint (140) is connected with the optical fiber hydrophone through the splicing joint (150).

7. The vapor chamber monitoring device of claim 6, further comprising:

a hose (160), the splice joint (150) being connected to the fiber optic hydrophone via the hose (160), the splice joint (150) and the transition joint (140) being capable of passing optical fibers leading from the fiber optic hydrophone in sequence.

8. The vapor chamber monitoring device of claim 1, further comprising:

a crossover sub (170), the coiled tubing (120) being connected to the housing (110) through the crossover sub (170).

9. The vapor chamber monitoring device of claim 1, wherein the fiber optic hydrophone comprises:

an acoustically transparent sleeve (210) that is acoustically transparent;

a hydrophone element (220) disposed through the acoustically transparent sleeve (210);

a support shaft (230) connected with the hydrophone element (220), wherein the first end of the sound-transmitting sleeve (210) is sleeved on the support shaft (230);

a support seat (240), wherein the second end of the sound-transmitting sleeve (210) is sleeved on the support seat (240).

10. The steam chamber monitoring device of claim 9, wherein the supporting shaft (230) is a hollow structure, the cavity of the supporting shaft (230) is used for passing optical fibers, and the side wall of the supporting shaft (230) is provided with an injection hole (231), and the injection hole (231) is used for injecting liquid into the cavity between the supporting shaft (230) and the sound-transmitting sleeve (210).

11. The vapor chamber monitoring device of claim 9, wherein the support shaft (230) has a first limiting rib (232) on an outer circumference thereof, the first limiting rib (232) being configured to limit the position of the acoustically transparent sleeve (210), the fiber optic hydrophone further comprises:

a first winding wire (251) wound around the first end of the acoustically transparent sleeve (210) to fixedly connect the first end of the acoustically transparent sleeve (210) to the support shaft (230).

12. The steam chamber monitoring device of claim 9, wherein the support shaft (230) comprises a first shaft section (233) and a second shaft section (234), the first shaft section (233) having a diameter larger than a diameter of the second shaft section (234), the first end of the acoustically transparent sleeve (210) being fitted over the first shaft section (233), the second shaft section (234) being provided through the hydrophone element (220) and the support base (240).

13. The steam chamber monitoring device of claim 12, wherein the support shaft (230) further comprises:

a stop collar (235) disposed on an outer circumference of the second shaft section (234), the stop collar (235) for abutting one end of the hydrophone element (220).

14. The vapor chamber monitoring device of claim 9, wherein the support base (240) has a second limiting rib (241) on an outer circumference thereof, the second limiting rib (241) being used for limiting the acoustically transparent sleeve (210), and the fiber optic hydrophone further comprises:

a second winding wire (252) wound around the second end of the acoustically transparent sleeve (210) to fixedly connect the second end of the acoustically transparent sleeve (210) to the support base (240).

15. The vapor chamber monitoring device of claim 9, wherein the acoustically transparent sleeve (210) is made of neoprene or butyl rubber.

16. The vapor cavity monitoring device of claim 9, wherein the fiber optic hydrophone further comprises:

a protective cap (280) disposed on the support shaft (230) and located within the acoustically transparent sleeve (210), the optical fibers exiting from the hydrophone cell (220) being connected with the optical fibers exiting from the support shaft (230) within the protective cap (280).