Ocean towrope exploration device and system

Abstract

The utility model discloses a marine towrope exploration device and system, the marine towrope exploration device comprises a positioning head mark, a collection towrope and an air gun array, the positioning head mark comprises a head mark floating body, a head mark positioner installed on the head mark floating body, a junction box installed on the head mark floating body and acoustic equipment connected with the junction box, the acoustic equipment and the head buoy floating body are arranged in a spaced mode, and the acoustic equipment is located below the sea level. The acquisition towing cable is connected with the junction box; the head buoy floating body and the air gun array are arranged in a spaced mode, and the acoustic equipment and the air gun array are arranged in a spaced mode. The junction box is installed on the head mark floating body, the acoustic equipment is connected with the junction box, the head mark positioner is installed on the head mark floating body in a matched mode to form the positioning head mark, the head mark floating body and the air gun array are arranged in a spaced mode, and the acoustic equipment and the air gun array are arranged in a spaced mode, so that interference of the air gun array on the acoustic equipment is effectively avoided; therefore, the acquisition of the acoustic data by the acoustic equipment is improved, and the authenticity and real-time performance of the acoustic data are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ocean towed cable exploration, in particular to an ocean towed cable exploration device and system. Background Art

[0002] With the development and application of streamer-based marine seismic exploration, the market demand for high-quality seismic data is increasing. High-precision seismic data can accurately determine geological structure information and thus locate potential oil and gas structures. During streamer-based marine seismic exploration, accurate positioning of the receiver point is fundamental to obtaining high-quality seismic data. Therefore, precise positioning of the receiver point at the streamer head is essential for conducting 2D and 3D marine streamer-based seismic exploration.

[0003] In existing positioning technologies, the gun array device is towed on a large-capacity air gun array, and the distance between the gun array device and the air gun array is relatively close. As a result, the acoustic equipment on the gun array device is easily disturbed by bubbles and surges generated by the excitation of the air gun array, which greatly affects the collection of acoustic data. A large amount of interpolated data is required for subsequent processing, resulting in poor authenticity and real-time performance of the acoustic data. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the purpose of this application is to provide an ocean streamer exploration device and system, which aims to solve the problem that acoustic equipment is easily disturbed by bubbles and surges generated by the excitation of air gun arrays.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In one aspect of an embodiment of the present application, a marine streamer exploration device is provided. The marine streamer exploration device comprises:

[0007] Positioning header, including:

[0008] header float;

[0009] A head marker locator is installed on the head marker buoy;

[0010] A junction box installed on the header float;

[0011] an acoustic device connected to the junction box, the acoustic device being spaced apart from the header buoy and located below sea level;

[0012] A collection streamer cable connected to the junction box;

[0013] An air gun array is provided, wherein the header float is spaced apart from the air gun array, and the acoustic device is spaced apart from the air gun array.

[0014] In some embodiments, the junction box includes at least a first branch interface, a second branch interface, and a third branch interface;

[0015] The first sub-interface is used to connect to the head locator, the second sub-interface is used to connect to the power generation unit, and the third sub-interface is used to connect to the acoustic device.

[0016] Furthermore, the power generation unit includes a solar charging panel and a water flow generator, and the second branch port is connected to the solar charging panel and the water flow generator.

[0017] In some embodiments, the junction box further includes a battery, and the third branch interface is connected to the acoustic device and the battery.

[0018] In some embodiments, the acquisition streamer includes a multi-core connector, and the multi-core connector is connected to the junction box.

[0019] In some embodiments, the header locator is a GNSS positioning device, and the GNSS positioning device is connected to the junction box.

[0020] In some embodiments, the collection streamer further includes a leading cable, and the collection streamer further includes a second connector, one end of the leading cable is connected to the second connector, and the other end of the leading cable is connected to the towing device.

[0021] In some embodiments, the acquisition streamer also includes a first conversion section, a second conversion section and a third joint, one end of the first conversion section is connected to the leading cable, and the other end of the first conversion section is connected to the third joint; one end of the second conversion section is connected to the third joint, and the end of the streamer close to the connector is connected to the other end of the second conversion section.

[0022] In some embodiments, the acquisition streamer further includes a plurality of geophones, and the geophones are used to acquire reflected seismic wave information.

[0023] Another aspect of the present application provides an ocean streamer exploration system, which includes the ocean streamer exploration device provided in any of the aforementioned embodiments.

[0024] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0025] The ocean streamer exploration device provided in the embodiments of the present application improves upon a conventional header by providing a junction box on the header that connects the header locator and acoustic equipment via the junction box, thereby forming a positioning header. Because the acoustic equipment and airgun array are spaced apart, and the header float and airgun array are also spaced apart, interference with the acoustic equipment caused by bubbles and swells generated by the large-capacity airgun array is effectively avoided, improving the acoustic equipment's ability to collect acoustic data. This, in turn, reduces the need for interpolated data during subsequent processing, effectively enhancing the authenticity and real-time nature of the acoustic data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a marine streamer exploration device provided in some embodiments of the present application;

[0027] Figure 2 A schematic diagram of the junction box structure provided in some embodiments of the present application.

[0028] Reference numerals:

[0029] 10 Positioning head mark 201 connector

[0030] 101 Head float 202 First conversion section

[0031] 102 Header locator 203 Second conversion segment

[0032] 103 junction box 204 front cable

[0033] 104 Acoustic Equipment 205 Detector

[0034] 105 Upper tail 206 Tow cable

[0035] 106 Lower tail 30 Towing rope

[0036] 20 Acquisition Streamer DETAILED DESCRIPTION

[0037] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0038] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of this application will be clearly and completely described below in combination with the drawings in the embodiments of this application. Obviously, the described embodiments are only embodiments of a part of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0039] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0040] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0041] In one aspect of the embodiments of the present application, a marine streamer exploration device is provided. Figure 1 As shown, in some embodiments, the ocean streamer survey device includes a positioning head 10, and the positioning head 10 includes:

[0042] Head mark float 101;

[0043] The head marker locator 102 is installed on the head marker float 101;

[0044] Junction box 103, installed on the header float 101;

[0045] The acoustic device 104 is connected to the junction box 103 and is used to receive and transmit acoustic signals. The acoustic device 104 is spaced apart from the header buoy 101 and is located below sea level.

[0046] The collection streamer 20 is connected to the junction box 103;

[0047] The air gun array (not shown in the drawings) is used to generate artificial seismic waves; the header float 101 is spaced apart from the air gun array, and the acoustic device 104 is spaced apart from the air gun array.

[0048] The ocean streamer exploration device provided in the embodiment of the present application improves the ordinary header, installs a junction box 103 on the header float 101, and connects the header locator 102 and the acoustic device 104 through the junction box 103, thereby forming a positioning header 10.

[0049] In the embodiment of the present application, since the acoustic device 104 and the air gun array are arranged at intervals, and the header float 101 and the air gun array are also arranged at intervals, it is possible to effectively avoid the interference of bubbles and surges excited by the large-capacity, high-frequency air gun array on the acoustic device 104, thereby improving the stability and continuity of the acoustic data acquisition by the acoustic device 104, thereby reducing the interpolated data in subsequent processing, and effectively improving the authenticity and real-time nature of the acoustic data; at the same time, a header locator 102 is installed on the header float 101, so that the positioning header 10 integrates acoustic and positioning functions into a towline 206 head positioning device, thereby effectively improving the positioning accuracy of the towline 206 head detection point.

[0050] Specifically, if Figure 1 As shown, the leader buoy 101 is located on the sea surface and is connected to the collection streamer 20 via a towing cable 30. The towing cable 30 can connect and fix the sinking depth of the collection streamer 20. At the same time, the leader buoy 101 is connected to the towing equipment via the towing cable 30, so that the leader buoy 101 and the collection streamer 20 can move along the predetermined route with the towing equipment. In the embodiment of the present application, the towing equipment can be an underwater navigation device with a towing function. For example, in an ocean streamer exploration operation, the towing equipment can be a ship, which tows the positioning leader 10 and the collection streamer 20 along the predetermined route through the towing cable 30 and completes the collection and transmission of relevant data.

[0051] In the embodiment of the present application, the header buoy 101 plays a crucial role. It is not only the front end of the streamer 206 system, but also guides the entire streamer 206 along a predetermined path in the sea under the towing of the towing equipment. In the embodiment of the present application, the optimized design of the header buoy 101 can maintain the streamer 206 at a specific depth and posture in the sea, thereby optimizing the effectiveness of the detectors on the streamer 206 in receiving reflected waves. At the same time, the optimized design of the header buoy 101 can reduce damage to the streamer 206 caused by external factors such as water currents and marine life, thereby extending the service life of the streamer 206 to a certain extent.

[0052] like Figure 1As shown, in some embodiments, a header locator 102 is mounted on the header float 101. The header locator 102 is connected to a junction box 103 and is configured to receive satellite positioning information and transmit relative distance and angle positioning information to an information processing platform. Mounting the header locator 102 on top of the header float 101 ensures that the streamer 206 travels along a predetermined route, providing accurate spatial positioning information for seismic wave data collection. Preferably, the header locator 102 is mounted on top of the header float 101.

[0053] In other embodiments, a bracket is further provided on the header float 101, through which the header locator 102 can be stably and reliably mounted on the header float 101. The structural design of the bracket not only takes into account the size of the header locator 102 and the portability requirements of its cable connection and installation, but also ensures that the header locator 102 can be above the horizontal plane when being towed but not too high from the water surface, thereby avoiding excessive shaking during travel that affects positioning accuracy. Moreover, since the header float 101 is far away from the gun array equipment, the header locator 102 is effectively protected from the vibrations excited by the high-frequency air gun array, reducing the failure rate or damage rate of the header locator 102.

[0054] like Figure 1 As shown, in some embodiments, the tail of the header buoy 101 is further provided with an upper tail wing 105 and a lower tail wing 106, and the upper tail wing 105 and the lower tail wing 106 are respectively arranged at relative positions of the tail of the header buoy 101, and the lower tail wing 106 is located below the sea level. The header locator 102 can also be installed on the upper tail wing 105. The arrangement of the upper tail wing 105 and the lower tail wing 106 can enable the header buoy 101 to maintain stable movement on a predetermined route on the sea surface.

[0055] In the embodiments of the present application, the head locator 102 can be a positioning device with satellite positioning capabilities. For example, in some embodiments, the head locator 102 is a GNSS positioning device installed on the upper portion of the head buoy 101 and connected to the junction box 103. The GNSS positioning device receives satellite information and transmits relative distance and angle information to an information processing platform such as a vessel.

[0056] Since a GNSS positioning device is installed on the head buoy 101, it can provide centimeter-level positioning data, and has the characteristics of high data stability and high accuracy, which can effectively improve the positioning accuracy of the head detector of the ocean streamer 206.

[0057] like Figure 1As shown, in some embodiments, the acoustic device 104 is connected to the junction box 103, and the acoustic device 104 is spaced apart from the header buoy 101, and the acoustic device 104 is located below sea level. In the embodiments of the present application, there is no particular limitation on the depth at which the acoustic device 104 is located below sea level. However, in actual applications, the depth at which the acoustic device 104 is located below sea level may be adjusted based on the required depth of the streamer 206. For example, based on the depth of the streamer 206, the acoustic device 104 may be located 3 to 5 meters below sea level to reduce the impact of waves and ensure the stability and continuity of acoustic data acquisition.

[0058] Unlike the existing positioning technology in which the acoustic device is set on the gun array device, in the embodiment of the present application, since the acoustic device 104 is set at a position away from the large-capacity, high-frequency air gun array, the interference of bubbles and surges excited by the air gun array on the acoustic device 104 can be effectively avoided; at the same time, since the acoustic device 104 is far away from the air gun array, the impact of the vibration generated by the high-frequency air gun array excitation on the acoustic device 104 can be reduced, the failure rate and damage rate of the acoustic device 104 can be reduced, and the maintenance cost of the acoustic device 104 is effectively reduced.

[0059] like Figure 2 As shown, in some embodiments, the junction box 103 includes at least a first branch interface, a second branch interface and a third branch interface; wherein the first branch interface is used to connect the head locator 102, the second branch interface is used to connect the power generation unit, and the third branch interface is used to connect the acoustic device 104, and the power generation unit is used to provide a stable power supply for the acoustic device 104 and the head locator 102.

[0060] In the embodiment of the present application, the power generation unit is a device that can generate electricity using solar energy or water energy. Figure 2 As shown, the power generation unit is a solar charging panel and a water flow generator. The second branch interface is connected to the solar charging panel and the water flow generator. The solar charging panel and the water flow generator can provide a stable power supply for the acoustic device 104 and / or the head marker locator 102.

[0061] like Figure 2 As shown, in some embodiments, the ocean streamer exploration device further includes a battery. The third tap connects the acoustic device 104 and the battery. The battery is electrically connected to the solar panel and the water flow generator. The battery stores electrical energy from the solar panel and / or the water flow generator and outputs a stable voltage via a connecting line, providing a stable voltage for the acoustic device 104 and / or the head locator 102.

[0062] In an embodiment of the present application, a first "Y"-shaped connecting line is connected to the second branch interface, one end of the first "Y"-shaped connecting line is connected to a solar charging panel, and the other end of the first "Y"-shaped connecting line is connected to a water flow generator. The solar charging panel and the water flow generator can provide power for related equipment. The third branch interface is connected to a second "Y"-shaped connecting line, one end of the second "Y"-shaped connecting line is connected to the acoustic device 104, and the other end of the second "Y"-shaped connecting line is connected to a battery. During ocean towing exploration operations, the head marker float 101 is towed and sailed, and the solar charging panel on the water surface and the water flow generator under the water surface will replenish the generated electricity into the battery through the connecting line, and the battery will output a stable voltage to the acoustic device 104 and the head marker locator 102.

[0063] like Figure 1 As mentioned above, in some embodiments, the collection streamer 20 includes at least one multi-core connector, which is connected to the junction box 103, thereby forming an electrical connection between the junction box 103 and the streamer 206. For example, in some embodiments of the present application, the collection streamer 20 includes one multi-core connector, which is connected to the junction box 103.

[0064] In some embodiments, the acquisition streamer 20 further includes a connector 201, which includes at least one multi-core connector. For example, in the embodiment of the present application, the connector 201 includes a multi-core connector that is connected to the connection line of the junction box 103, thereby electrically connecting the acoustic device 104, the head locator 102, and other devices on the streamer 206, thereby forming an acoustic node network as a whole, which can effectively improve the positioning accuracy of the head detection point of the streamer 206.

[0065] like Figure 1 As shown, in some embodiments, the acquisition streamer 20 also includes a leader cable 204. The connector 201 includes a second connector. One end of the leader cable 204 is connected to the second connector, and the other end of the leader cable 204 is connected to the towing equipment. The leader cable 204 not only serves as a key connection between the streamer 206 and the towing equipment, but also transmits data to the information processing platform. This data includes seismic wave information received by the geophone 205 and acoustic information collected by other equipment on the streamer 206. In this embodiment of the present application, the towing cable 30 is connected to the leader cable 204. Through the towing equipment, the positioning head 10 and the acquisition streamer 20 can travel along a predetermined route.

[0066] like Figure 1As shown, in some embodiments, the acquisition streamer 20 further includes a first conversion section 202 and a second conversion section 203, and the connector 201 includes a third connector. One end of the first conversion section 202 is connected to the leading cable 204, and the other end of the first conversion section 202 is connected to the third connector; one end of the second conversion section 203 is connected to the third connector, and the end of the streamer 206 near the connector 201 is connected to the other end of the second conversion section 203. In the embodiment of the present application, by improving the original connector, the new connector 201 is provided with a multi-core conversion connector; for example, the original connector is improved to a new connector 201 with a multi-core connector, so that the multi-core connector can form an electrical connection with the connecting wires on the junction box 103, thereby allowing the acoustic device 104, the head locator 102, and other devices on the streamer 206 to form an acoustic node network, which can effectively improve the positioning accuracy of the head detection point of the streamer 206.

[0067] Specifically, in the embodiment of the present application, the connector on the streamer 206 is improved to a new connector 201 with a multi-core connector. The new connector 201 needs to connect the communication lines of the 3rd and 4th acoustic data outputs and the 10th and 11th acoustic data inputs to the connecting line of the junction box 103 through a multi-core connector on the basis of the original 28-core line communication, so that the acoustic device 104, the head locator 102 and other devices on the streamer 206 form an acoustic node network.

[0068] like Figure 1 As shown, the acquisition streamer 20 further includes a plurality of geophones 205 , which are distributed and installed on the streamer 206 for collecting reflected seismic wave information.

[0069] In the ocean streamer exploration device provided in the embodiment of the present application, the positioning head 10 is mounted on the head of the streamer 206, and the acoustic device 104 and other acoustic devices on the streamer 206 transmit and receive signals through ultrasonic sensors, encrypting the acoustic node at the head of the streamer 206, thereby improving the head positioning accuracy; at the same time, the head locator 102 receives satellite positioning information and transmits relative distance and angle information to information processing platforms such as the ship end, and obtains the precise position through corresponding software calculation, thereby effectively improving the positioning data of the detection point at the head of the streamer 206.

[0070] In actual applications, the ocean streamer exploration device provided in the embodiment of the present application has an acoustic device 104 and an air gun array that are spaced apart and a head float and an air gun array that are also spaced apart. Therefore, the acoustic device 104 is not disturbed by bubbles and surges generated by the large-capacity, high-frequency air gun array, which effectively improves the stability and continuity of acoustic data acquisition, and can effectively improve the quality of acoustic positioning data of the head of the streamer 206. At the same time, the installation of a GNSS positioning device on the head float 101 can effectively improve the positioning accuracy of the detection point at the head of the streamer 206.

[0071] Another aspect of the embodiments of the present application further provides an ocean streamer exploration system, comprising the ocean streamer exploration device provided by any of the aforementioned embodiments. During ocean streamer exploration operations, an air gun array is used to generate artificial seismic waves. Its operating principle is as follows: artificial seismic waves are formed by instantaneously releasing high-pressure air. These artificial seismic waves penetrate the seabed strata and form reflected seismic waves, which are then received by the geophone 205 on the streamer 206. The system provided by the embodiments of the present application utilizes an acoustic device 104, a head locator 102, and other acoustic devices on the streamer 206 to form an acoustic node network at the head of the streamer 206. Acoustic measurement values ​​are obtained, and combined with the reflected seismic wave information, the positioning position of the geophone point at the head of the streamer 206 is obtained through calculation.

[0072] The ocean streamer exploration system provided in the embodiment of the present application forms a positioning header 10 by installing a junction box 103 on the header buoy 101, installing a header locator 102 on the header buoy 101 and connecting it to the junction box 103, and connecting the acoustic device 104 to the junction box 103. Moreover, by improving the original connector of the streamer 206, the new connector 201 has a multi-core connector connected to the junction box 103, so that the positioning header 10, the acquisition streamer 20 and other equipment on the streamer 206 form an acoustic node network, thereby effectively improving the positioning accuracy of the detection point at the head of the streamer 206.

[0073] The ocean streamer exploration system provided in the embodiment of the present application has a header float 101, a header locator 102 and an acoustic device 104 that are evenly spaced apart from a large-capacity, high-frequency air gun array. In addition, the acoustic device 104 is spaced apart from the header float 101, so that the acoustic device 104 and the header locator 102 are both spaced apart from the air gun array. This can effectively avoid interference with the equipment caused by bubbles and surges generated by the excitation of the air gun array, thereby improving the stability and continuity of the acoustic data acquisition by the acoustic device 104.

[0074] At the same time, since the acoustic device 104 and the head locator 102 are both arranged away from the air gun array, the impact of the vibration generated by the high-frequency air gun array excitation on the acoustic device 104 or the head locator 102 can be reduced, the failure rate and damage rate of the equipment can be reduced, and the maintenance cost of the equipment can be effectively reduced.

[0075] The above description is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any variation, modification or equivalent substitution made by those skilled in the art without departing from the technical concept of the present application, and all embodiments obtained, shall fall within the scope of protection of the claims of the present application.

Claims

1. A marine streamer exploration device, characterized in that: include: Positioning header, including: header float; A head marker locator is installed on the head marker buoy; A junction box installed on the header float; an acoustic device connected to the junction box, the acoustic device being spaced apart from the header buoy and located below sea level; A collection streamer cable connected to the junction box; An air gun array is provided, wherein the header float is spaced apart from the air gun array, and the acoustic device is spaced apart from the air gun array.

2. The ocean streamer exploration device according to claim 1, characterized in that: The junction box at least includes a first branch interface, a second branch interface and a third branch interface; The first sub-interface is used to connect to the head locator, the second sub-interface is used to connect to the power generation unit, and the third sub-interface is used to connect to the acoustic device.

3. The ocean streamer exploration device according to claim 2, characterized in that: The power generation unit includes a solar charging panel and a water flow generator, and the second branch port is connected to the solar charging panel and the water flow generator.

4. The ocean streamer exploration device according to claim 2, characterized in that: It also includes a battery, and the third branch interface is connected to the acoustic device and the battery.

5. The ocean streamer exploration device according to claim 1, characterized in that: The collection streamer cable includes a multi-core connector, and the multi-core connector is connected to the junction box.

6. The ocean streamer exploration device according to any one of claims 1 to 5, characterized in that: The header locator is a GNSS positioning device, and the GNSS positioning device is connected to the junction box.

7. The ocean streamer exploration device according to claim 1, characterized in that: The collection streamer further includes a leading cable, and the collection streamer further includes a second connector, one end of the leading cable is connected to the second connector, and the other end of the leading cable is connected to the towing device.

8. The ocean streamer exploration device according to claim 7, characterized in that: The acquisition streamer also includes a first conversion section, a second conversion section and a third joint, one end of the first conversion section is connected to the leading cable, and the other end of the first conversion section is connected to the third joint; one end of the second conversion section is connected to the third joint, and the end of the streamer close to the connector is connected to the other end of the second conversion section.

9. The ocean streamer exploration device according to claim 1, characterized in that: The acquisition streamer also includes a plurality of geophones, which are used to acquire reflected seismic wave information.

10. A marine streamer exploration system, characterized in that: The invention comprises the ocean streamer exploration device according to any one of claims 1 to 9.

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