CN117310819A - Marine ocean bottom seismic exploration equipment and system for ocean comprehensive survey - Google Patents

Abstract

The invention discloses ocean bottom seismic exploration equipment and a system for an ocean comprehensive survey ship, which relate to the technical field of ocean exploration and comprise seismic source equipment, gun array equipment and exploration equipment, wherein the seismic source equipment and the exploration equipment are arranged on the ocean comprehensive survey ship, the seismic source equipment comprises at least one air compressor, the air compressor is connected with an air supply pipe, the air supply pipe is connected with the gun array equipment at intervals, the gun array equipment comprises a conversion head, the conversion head comprises at least 3 ports, one end of the conversion head is connected with the air supply pipe, the other ports of the conversion head are connected with air guns, each port of the conversion head is sleeved with a sliding sleeve, the sliding sleeve comprises a sliding pipe, through holes are coaxially arranged on the sliding pipe, a plurality of air bags are arranged around the sliding pipe along the length direction of the sliding pipe, two ends of each air bag extend to form a hose, and the hose is bent and connected with the sliding pipe. The invention aims to provide marine ocean bottom earthquake detection equipment and system for marine comprehensive measurement, which are easy to operate, good in universality and high in efficiency.

Description

A kind of marine comprehensive survey ship seabed seismic detection equipment and system

Technical field

The invention belongs to the technical field of ocean detection, and specifically relates to a submarine seismic detection equipment and system for comprehensive ocean surveying.

Background technique

As an important platform for ocean exploration and research, the comprehensive marine scientific research vessel is the most important component of marine scientific research capacity building. In the existing technology, multi-channel seismic and undersea seismic (OBS) seismic equipment have different air supply pipes and air guns. A set of seismic equipment comes with its own dedicated air supply pipe and special air gun. However, the space of the marine scientific comprehensive survey ship is limited, especially on the rear deck. The operating space must meet the operational requirements of each discipline and cannot occupy too much fixed space. As a result, the comprehensive marine scientific research vessel can only install one of multi-channel seismic or undersea seismic (OBS) seismic equipment at one time, which seriously reduces the cost of comprehensive marine scientific research. The detection efficiency of the ship; in addition, the existing seismic equipment is fixed and separately installed, which makes equipment replacement inconvenient; finally, the existing air gun has the problem of poor synchronization.

The existing technology is an invention patent titled "Coaxial Dual Chamber Seismic Air Gun", and the publication number of this invention is US4715023A. This invention provides a coaxial dual-chamber seismic air gun. Two air chambers are fired at the same time to offset the reaction force generated. The air chambers are symmetrical within the airgun shell, so that the movements of the internal components during operation can also balance each other. The lance is mounted coaxially to the air supply of the seismic array, providing a good profile for towing. This invention has good balance, but it cannot realize simultaneous operations and has many operating procedures.

Contents of the invention

The object of the present invention is to provide a submarine seismic detection equipment and system for marine comprehensive survey that is easy to operate, has good versatility and high efficiency.

The technical solutions adopted by the present invention to achieve the above objects are:

A submarine seismic detection equipment for a comprehensive marine survey ship, including seismic source equipment, gun array equipment and detection equipment. The seismic source equipment and detection equipment are arranged on the comprehensive marine survey ship. The seismic source equipment includes at least one air compressor, and the air compressor is connected with an air supply pipe. , the air supply pipes are connected to the gun array equipment at intervals. The gun array equipment includes a conversion head. The conversion head includes no less than 3 ports. One end of the conversion head is connected to the air supply pipe, and the other ports of the conversion head are connected to the air gun. Each port of the conversion head is equipped with a slip cover. The sliding sleeve includes a sliding tube. The sliding tube is coaxially provided with a through hole. The sliding tube is surrounded by a plurality of air bags arranged along the length direction of the sliding tube. There are hoses extending at both ends of the air bags, and the hoses are bent. Connect the slip tube;

The marine comprehensive survey ship has a tow cable extended, and the tow cable is connected to the gun array equipment.

Through the overall design of a seabed seismic detection equipment for a comprehensive marine survey ship, source equipment is configured on the comprehensive marine survey ship. High-pressure air can be transported to the gun array equipment through the air pipe through at least one air compressor, and the gun array equipment can be launched In the water body, the gas can be controlled through the conversion head in the gun array equipment, that is, the gas can be output to the air gun through the conversion head. The air gun is a multi-channel seismic air gun and/or an OBS air gun. Among them, each port of the conversion head is equipped with a sliding sleeve. The sliding sleeve can ensure the strength of each port of the conversion head. That is, the sliding sleeve protects each port of the conversion head and prevents the extension of each port of the conversion head. The tube bodies are entangled with each other to avoid the problem of inconsistent air flow delivery of the conversion head caused by entanglement; in addition, the through hole provided in the middle of the sliding sleeve is used to cover each interface of the conversion head. When the gun array equipment is placed After being in the water, the ship will drive the gun array equipment to the designated position and start. During this process, the water body will wash away the gun array equipment and move the sliding sleeve back and forth. There are multiple air bags on the side of the sliding sleeve. The setting functions are as follows: firstly, it can provide upward buoyancy support effect for the conversion head; secondly, it can prevent the conversion head from colliding with the air gun or other items; thirdly, it can increase the diameter of each port of the conversion head in disguised form, which can prevent the connection between each port. The pipe body is entangled, and during the movement of the sliding sleeve, the surface of each port of the conversion head can be slid, and the surface can be cleaned. There are hoses extending at both ends of the airbag. The hoses are bent and connected to the sliding tubes, which can absorb side impacts. Furthermore, a limiter is provided at the extreme position of the sliding sleeve. The hose can be connected to the limiter. The tables or walls contact each other to achieve position limiting.

Among them, the detection equipment includes magnetic detectors towed by tow cables, OBS marine seismometers and seafloor geothermal meters or seafloor heat flow probes released into the sea. The above-mentioned detection equipment also includes ocean gravimeters.

Furthermore, the above-mentioned air supply pipe and air compressor are directly provided with a constant pressure chamber.

Furthermore, airguns include one or a combination of BLLT airguns, SLEEVE airguns, and G airguns.

Furthermore, the air gun includes a solenoid valve, a detonation chamber, a return chamber, a main air chamber, and a valve core. The main air chamber is equipped with an adjustable adjusting sliding sleeve. The adjusting sliding sleeve can go deep into the main air chamber or retract into the outer wall of the air gun. Adjust the capacity of the air gun's main air chamber by adjusting the slide sleeve.

According to an embodiment of the present invention, the adapter port is connected to the detonation chamber of the air gun.

Through the above design, multiple seismic air guns and/or OBS air guns are installed in one body. The detonation chambers of each air gun are provided with bypass connecting pipes. The end of the conversion head and the bypass connecting pipes are connected to each other. The detonating chambers of each air gun are connected by A bypass connecting pipe can quickly establish stable pressure in each detonation chamber, reducing the problem of uneven pressure in the detonation chamber due to differences in manufacturing processes, resulting in poor synchronization of detonation, and greatly improving the synchronization of detonation.

According to an embodiment of the present invention, the gun array equipment also includes a first frame body. Multiple seismic air guns and/or OBS air guns are fixed in the first frame body. A plurality of adjustment components are provided in the first frame body. The top side of the first frame body It is also provided with a plurality of adjustment components, a drag component is provided on the side of the first frame body, and a protective component is provided on the bottom of the first frame body.

Through the above design, multi-channel seismic air guns and/or OBS air guns are fixed in the first frame body, and multiple adjustment components are provided inside and on the top side of the first frame body. The adjustment components are used to adjust the attitude and posture of the first frame body. By adjusting the position, it is possible to adjust the attitude and position of the air gun during the movement of the first body with the comprehensive marine survey ship and when the air gun in the first body is started, which can improve the detection accuracy. At the same time, a tow assembly is provided on the side of the first frame body. The tow assembly is used to connect with the first frame body adjacent to the side. A protective assembly is provided on the bottom side of the first frame body. The protective assembly is used to realize the operation of the first frame body. During the towing process of the first body on the comprehensive marine survey ship, the towing speed and stability of the first body can be improved, and the bottom of the first body can be prevented from being damaged, thereby protecting the air gun and conversion head in the first body.

According to an embodiment of the present invention, the towing assembly includes a first plate body, a connecting rod is provided on one side of the first plate body, the connecting rod is hingedly connected with the first frame body, and no less than two A first connecting rod, the other end of the first connecting rod is connected to a hinge frame, the hinge frame is provided with a connecting column on the side away from the first plate body, and a connecting hole is provided on the side of the connecting column;

A connecting rope body is provided on one side of the first plate body connected to the first connecting rod, and the connecting rope body is used to connect adjacent gun array equipment.

Through the above design, the connecting rod is hinged with the first frame body, which can achieve a certain swing range between the towing assembly and the first frame body; at the same time, the towing assembly is used to connect with the first frame body adjacent to the side , can realize the simultaneous operation of multiple first frames. The towing assembly is connected to the first frame located closest to the marine comprehensive survey ship. The connecting rope body on this towing assembly is connected to the marine comprehensive survey ship to avoid the ship from being damaged. The drag factor caused by towing causes the end of the first frame to tilt upward. The force of the ship's towing causes the towing assembly to tilt, and the connecting rod connecting the towing assembly to the first frame is hinged. In this way, the first frame body can still maintain its original level or target state when it is in the water; in addition, a connecting column is provided on one side of the hinged frame, and a connecting hole is provided on the side of the connecting column, and the connecting rope body is passed through the connecting hole to connect The hole is used to determine the position of the connecting rope body to prevent the connecting rope body from being entangled. The hinged frame can move and determine the position of the connecting hole, which can further prevent the end of the first frame body from tilting upward, and can also realize hinged joints. The frame provides a certain target angle to achieve smoother movement of the first frame body. In addition, the towing component can achieve the function of protection. The underwater towing component is in front of the first frame. If there is an obstacle in front, the towing component will collide with the obstacle first, protecting the valuable first frame. of various devices.

According to an embodiment of the present invention, the first connecting rod is provided with a telescopic body, the telescopic body includes oppositely arranged telescopic covers, a first spring is provided between the telescopic covers, and a plurality of first holes are provided on the telescopic cover. .

During the movement of the first frame, the speed of the first frame will change. At the same time, the adjacent first frames are connected through drag components. In this process, the distance between the first frames will change. The spacing will change, which will cause the connection distance of the connecting rope body to change, that is, the connecting rope body and the adjacent first frame body will be tightened or relaxed. In this process, the connecting rope body will drive the connecting column and The hinged frame moves and rotates to achieve a certain buffering effect.

The telescopic body can be deformed when the connection distance of the connecting rope body changes to further enhance the buffering effect. During the expansion and deformation process of the telescopic body, the two opposite telescopic covers will stretch, and the external water The experience enters the interior of the telescopic body through the first hole on the telescopic body. During the compression deformation process of the telescopic body, the two oppositely arranged telescopic covers will squeeze, and the water inside the telescopic body will be discharged through the first hole, in which the third hole will be discharged. A spring is used to realize the reset of the telescopic body and the deformation range control of the telescopic body. The telescopic body will achieve a strong buffering effect during the expansion deformation and compression deformation processes, thereby improving the buffering effect of the drag component. In addition, during the process of compression deformation and tensile deformation of the telescopic body, the water body near the tow component will be moved, thereby reducing the attachments on the first rod body of the tow component, and at the same time reducing the number of tow components. Creatures gather nearby to prevent attachments on the first rod from causing problems with the overall speed and depth positioning of the gun array equipment.

According to an embodiment of the present invention, a winding body is provided between the first connecting rods. The winding body is an annular tube with a gap, and the connecting rope body preferentially passes through the annular tube.

A winding body is arranged between the first connecting rods. The connecting rope body extends from the first plate body and passes through the winding body first. Since the winding body is an annular tube with a gap, the annular tube has an inlet and an outlet. , the connecting rope body will enter the annular tube from the entrance and pass out from the outlet. After the rope body comes out of the annular tube, it will pass through the connecting hole and be connected to the adjacent gun array. Through the above design, when the connecting rope body is dragged, the connecting rope body will compress the inner diameter of the annular tube. At this time, the annular tube will deform, and the length of the connecting rope body extending from the outlet will increase relatively; when the drag force disappears , the annular tube will rebound to its original shape, thereby reducing the length of the connecting rope protruding from the outlet. If the change in the moving speed of the hull during the towing process of the marine comprehensive survey ship affects the displacement of the first frame during the towing process It will not have a major impact. For example, when the marine comprehensive survey ship suddenly speeds up when the speed is low, the drag impact is first buffered by the articulated frame and the winding body to avoid directly dragging the first body, and the first body can be realized. The body's movement speed and state are stable.

According to an embodiment of the present invention, swing leaves are symmetrically provided on both sides of the towing assembly, and the swing leaves are rotationally connected to the first connecting rod.

Through the above design, the swing leaf scheme on both sides of the towing assembly can guide the water body during the towing process, preventing the water body from concentrating on the first frame body at the rear side, thus reducing the impact of the water flow on the first frame body. The interference of the frame body maintains the stability of the first frame body in the water; and due to the towing of the comprehensive ocean survey ship, the entire towing assembly should be tilted upward, so that the water flow flowing through the swing blades is directed downwards of the first frame body. In this way, when the air gun on the first frame is working, it outputs energy downward, and the water flow guided by the swing blade has a boosting and strengthening effect on the energy output of the air gun.

A comprehensive ocean survey ship-based seabed seismic detection system adopts an ocean comprehensive survey ship. The ocean comprehensive survey ship is equipped with seabed seismic detection equipment for the ocean comprehensive survey ship. The ocean comprehensive survey ship is also equipped with data acquisition and receiving equipment, data processing equipment and communication equipment. . This system has the following operating methods:

S1: Pre-processing, according to the different source locations required for multi-channel seismic and OBS measurements, set interfaces with different spacing distances on the air supply pipe;

S2: The first outbound journey: multi-channel seismic measurement and OBS deployment. Connect the air supply pipe to the multi-channel seismic air gun and tow it to implement multi-channel seismic operations and measurements. At the same time, launch the OBS marine seismometer into the sea point by point;

S3: The first return trip: replace the air gun and OBS blasting, magnetic detection, use the conversion joint to replace the multi-channel seismic air gun with the large-capacity air gun of OBS, carry out OBS blasting operation, and at the same time tow the magnetometer to collect magnetic data and shipboard gravity measurement ;

S4: On the second outbound journey, the OBS ocean seismometer is recovered and fixed-point seafloor heat flow measurements are performed.

Description of the drawings

Figure 1 is a schematic diagram of the use state of a submarine seismic detection equipment for comprehensive marine survey;

Figure 2 is a schematic diagram of the conversion head assembly;

Figure 3 is a three-dimensional schematic diagram of the sliding sleeve;

Figure 4 is a three-dimensional schematic diagram of the gun array equipment;

Figure 5 is a schematic side view of the gun array equipment;

Figure 6 is a three-dimensional schematic diagram of the towing assembly;

Figure 7 is a three-dimensional schematic diagram of the telescopic body;

Figure 8 is a schematic diagram of the assembly of the telescopic body;

Figure 9 is a partial three-dimensional schematic diagram of the protective component;

Figure 10 is a schematic side view of the protective assembly.

Reference numbers: gun array equipment 1, conversion head 11, port 111, first frame body 12, adjustment component 13, marine comprehensive survey ship 2, air supply pipe 21, sliding sleeve 3, sliding tube 31, through hole 32, Air bag 33, hose 34, towing assembly 4, first plate body 41, connecting rod 42, first connecting rod 43, hinge frame 44, connecting column 45, connecting hole 46, connecting rope body 47, winding body 48, Ring tube 481, swing leaf 49, telescopic body 5, telescopic cover 51, first hole body 52, first spring 53, protective component 6, protective base 61, air column 62, runner 63, strip base 64, strip Shape 65, rotating connector 66.

Detailed ways

The technical solution of the present invention will be further described in detail below with reference to specific embodiments and drawings:

Example 1:

As shown in Figures 1 to 8, a seabed seismic detection equipment for a comprehensive ocean survey ship includes seismic source equipment, gun array equipment 1 and detection equipment. The source equipment and detection equipment are arranged on a comprehensive ocean survey ship 2. The source equipment includes at least An air compressor. The air compressor is connected to an air supply pipe 21. The air supply pipe 21 is connected to the gun array device 1 at intervals. The gun array device 1 includes a conversion head 11. The conversion head 11 includes no less than three ports 111. One end of the conversion head 11 The air supply pipe 21 is connected, and the other ports 111 of the conversion head 11 are connected to the air gun. Each port 111 of the conversion head 11 is provided with a sliding sleeve 3. The sliding sleeve 3 includes a sliding tube 31, and the sliding tube 31 is coaxially provided with a through hole 32. , the sliding tube 31 is surrounded by a plurality of airbags 33 arranged along the length direction of the sliding tube 31, and hoses 34 extend from both ends of the airbag 33, and the hoses 34 are bent to connect to the sliding tube 31;

The comprehensive marine survey ship 2 has a tow cable extending out, and the tow cable is connected to the gun array equipment 1 .

Through the overall design of a seabed seismic detection equipment for a comprehensive marine survey ship, seismic source equipment is configured on the comprehensive marine survey ship 2. High-pressure air can be transported to the gun array device 1 through the air pipe through at least one air compressor. The gun array The device 1 can be placed in a body of water. The gas can be controlled through the conversion head 11 in the gun array device 1, that is, the gas can be output to a multi-channel seismic air gun and/or an OBS air gun through the conversion head 11. Among them, each port 111 of the conversion head 11 is provided with a sliding sleeve 3. The sliding sleeve 3 can ensure the strength of each port 111 of the conversion head 11, that is, the sliding sleeve 3 protects each port 111 of the conversion head 11. It can be avoided that the tubes extending from the ports 111 of the conversion head 11 are entangled with each other, thereby avoiding the problem of inconsistent air flow delivery of the conversion head 11 caused by the entanglement; in addition, the through hole 32 provided in the middle of the sliding sleeve 3 is used for sleeve Located at each interface of the conversion head 11, when the gun array device 1 is placed in the water, the ship will drive the gun array device 1 to move to the designated position and start. During this process, the water body will wash away the gun array device 1 and achieve sliding. The sliding sleeve 3 moves back and forth, and a plurality of air bags 33 are provided on the side of the sliding sleeve 3. The functions of the air bags 33 are as follows: firstly, it can provide upward buoyancy support effect to the conversion head 11; secondly, it can prevent the conversion head 11 from contacting the air gun. or other objects collide. Thirdly, the diameter of each port 111 of the conversion head 11 can be increased in disguise, which can prevent the pipe body connected to each port 111 from being entangled. During the movement of the sliding sleeve 3, each port of the conversion head 11 can be adjusted. 111 surface slips, the surface can be cleaned. There are hoses 34 extending at both ends of the air bag 33. The hoses 34 are bent and connected to the sliding tube 31, which can absorb side impacts. Furthermore, a limiter is provided at the extreme position of the sliding sleeve 3 to softly The tube 34 can be in contact with the limiting platform or wall to achieve limiting.

Among them, the detection equipment includes magnetic detectors towed by tow cables, OBS marine seismometers and seafloor geothermal meters or seafloor heat flow probes released into the sea. The above-mentioned detection equipment also includes ocean gravimeters.

Furthermore, the above-mentioned air supply pipe 21 and the air compressor are directly provided with a constant pressure chamber.

Furthermore, airguns include one or a combination of BLLT airguns, SLEEVE airguns, and G airguns.

Furthermore, the air gun includes a solenoid valve, a detonation chamber, a return chamber, a main air chamber, and a valve core. The main air chamber is equipped with an adjustable adjusting sliding sleeve. The adjusting sliding sleeve can go deep into the main air chamber or retract into the outer wall of the air gun. Adjust the capacity of the air gun's main air chamber by adjusting the slide sleeve.

The port 111 of the conversion head 11 is connected to the detonation chamber of the air gun.

Through the above design, multiple seismic air guns and/or OBS air guns are installed in one body. The detonation chambers of each air gun are provided with bypass connecting pipes. The end of the conversion head 11 is connected to the bypass connecting pipes. The detonating chambers of each air gun are connected to each other. Connected through a bypass connecting pipe, stable pressure can be quickly established in each detonation chamber, which reduces the problem of inconsistent pressure in the detonation chamber due to differences in manufacturing processes, resulting in poor detonation synchronization, and greatly improves the synchronization of detonation.

The gun array equipment 1 also includes a first frame 12. The air gun is fixed in the first frame 12. The first frame 12 is provided with a plurality of adjustment components 13. The top side of the first frame 12 is also provided with a plurality of adjustment components. 13. The first frame body 12 is provided with a towing assembly 4 on the side, and a protective assembly 6 is provided on the bottom of the first frame body 12 .

Through the above design, the multi-channel seismic air gun and/or OBS air gun are fixed in the first frame body 12, and multiple adjustment components 13 are provided inside and on the top side of the first frame body 12. The adjustment components 13 are used to adjust the first frame body 12. By adjusting the posture and position of the first body 12, it is possible to adjust the attitude of the air gun during the movement of the first body 12 with the comprehensive ocean survey ship 2 and when the air gun in the first body 12 is started. Adjusting the position can improve the detection accuracy. At the same time, a towing assembly 4 is provided on the side of the first frame body 12. The towing assembly 4 is used to connect with the first frame body 12 adjacent to the side. A protective assembly 6 is provided on the bottom side of the first frame body 12. The protective assembly 6 It is used to realize that when the first frame body 12 is towed on the marine comprehensive survey ship 2, the towing speed and smoothness of the first frame body 12 can be improved, and at the same time, the bottom of the first frame body 12 can be prevented from being damaged, and thus the first frame body 12 can be towed. The air gun and conversion head 11 in the first frame 12 are protected.

The towing assembly 4 includes a first plate body 41. One side of the first plate body 41 is provided with a connecting rod 42. The connecting rod 42 is hingedly connected to the first frame body 12. The other side of the first plate body 41 is provided with no less than two The first connecting rod 43 has a hinged frame 44 connected to the other end of the first connecting rod 43. The hinged frame 44 is provided with a connecting column 45 on the side away from the first plate body 41, and a connecting hole 46 is provided on the side of the connecting column 45;

A connecting rope body 47 is provided on the side of the first plate body 41 connected to the first connecting rod 43, and the connecting rope body 47 is used to connect adjacent gun array equipment 1.

Through the above design, the connecting rod 42 is hinged with the first frame body 12, that is, a certain swing range between the towing assembly 4 and the first frame body 12 can be achieved; at the same time, the towing assembly 4 is used for the third frame adjacent to the side. One frame 12 is connected to realize multiple first frames 12 working at the same time. The towing assembly 4 connected to the first frame 12 located closest to the marine comprehensive survey ship 2 has a connecting rope on the towing assembly 4. The body 47 is connected to the marine comprehensive survey ship 2 to avoid the problem that the end of the first frame body 12 is tilted upward due to the drag factor caused by the towing of the ship. The connecting rod 42 connecting the row assembly 4 to the first frame body 12 is hinged, so that the first frame body 12 can still maintain its original level or target state when it is in the water; in addition, a connecting column is provided on one side of the hinged frame 44 45. A connection hole 46 is provided on the side of the connection column 45. The connection rope body 47 is provided through the connection hole 46. The connection hole 46 is used to determine the position of the connection rope body 47 to prevent the connection rope body 47 from being entangled. The hinge frame 44 can Moving and determining the position of the connecting hole 46 can further prevent the end of the first frame 12 from tilting upward, and can also provide a certain target angle for the hinge frame 44 to achieve a smoother movement of the first frame 12 . In addition, the towing assembly 4 can play a protective role. The towing assembly 4 in the water is in front of the first frame 12. If there is an obstacle in front, the towing assembly 4 will collide with the obstacle first, protecting the valuable third frame. Each piece of equipment on a body 12.

The first connecting rod 43 is provided with a telescopic body 5. The telescopic body 5 includes opposite telescopic cover bodies 51. A first spring 53 is provided between the telescopic cover bodies 51. The telescopic cover body 51 is provided with a plurality of first holes. 52.

During the traveling process of the first frame body 12, the speed of the first frame body 12 will change. At the same time, the adjacent first frame bodies 12 are connected through the towing assembly 4. In this process, the first frame body 12 will The spacing between the bodies 12 will change, which will cause the connection distance of the connecting rope body 47 to change, that is, the connecting rope body 47 and the adjacent first frame body 12 will be tightened or relaxed. In this process , the connecting rope body 47 will drive the connecting column 45 and the hinge frame 44 to move and rotate, which can achieve a certain buffering effect.

The telescopic body 5 can be deformed when the connection distance of the connecting rope body 47 changes to further enhance the buffering effect. During the expansion and deformation process of the telescopic body 5, the two opposite telescopic covers 51 will When stretched, the external water body will enter the interior of the telescopic body 5 through the first hole 52 on the telescopic cover 51. During the compression deformation process of the telescopic body 5, the two oppositely arranged telescopic covers 51 will squeeze, and the telescopic body 5 The internal water body will be discharged through the first hole body 52 , wherein the first spring 53 is used to realize the reset of the telescopic body 5 and the deformation range control of the telescopic body 5 . The telescopic body 5 will achieve a strong buffering effect during expansion deformation and compression deformation, thereby improving the buffering effect of the dragging assembly 4 . In addition, during the process of compression deformation and tensile deformation of the telescopic body 5, the water body near the towing assembly 4 will be moved, thereby reducing the attachments on the first rod body of the towing assembly 4, and at the same time reducing Creatures gather near the drag assembly 4 to prevent attachments on the first rod body from causing problems with the overall traveling speed and depth positioning of the gun array device 1 .

A winding body 48 is disposed between the first connecting rods 43. The winding body 48 is an annular tube 481 with a gap, and the connecting rope body 47 preferentially passes through the annular tube 481.

The winding body 48 is arranged between the first connecting rods 43. The connecting rope body 47 extends from the first plate body 41 and passes through the winding body 48 first. Since the winding body 48 is an annular tube 481 with a gap, it is annular. The tube 481 has an inlet and an outlet. The connecting rope body 47 will enter the annular tube 481 from the inlet and pass out from the outlet. After the rope body exits the annular tube 481, it will pass through the connecting hole 46 and be connected to the adjacent gun array. Through the above design, when the connecting rope body 47 is dragged, the connecting rope body 47 will compress the inner diameter of the annular tube 481. At this time, the annular tube 481 will deform, and at the same time, the length of the connecting rope body 47 extending from the outlet will increase relatively; When the drag force disappears, the annular tube 481 will rebound to its original shape, thereby reducing the length of the connecting rope body 47 extending from the outlet. The displacement of the first body 12 during the dragging process will not have a major impact. For example, the comprehensive ocean survey ship 2 suddenly increases speed when the speed is low. This dragging impact is first buffered by the articulated frame 44 and the winding body 48 to avoid By directly dragging the first frame 12, the moving speed and state stability of the first frame 12 can be achieved.

The towing assembly 4 is symmetrically provided with swing leaves 49 on both sides, and the swing leaves 49 are rotationally connected to the first connecting rod 43 .

Through the above design, the swing leaves 49 on both sides of the towing assembly 4 can guide the water body during the towing process, preventing the water body from concentrating on the first frame body 12 at the rear side, thus reducing the flow of water. Interference with the first frame body 12 maintains the stability of the first frame body 12 in the water; and due to the towing of the ocean comprehensive survey ship 2, the entire towing assembly 4 should be tilted upward, so that the water flowing through the swing blade 49 The water flow flows in the downward direction of the first frame body 12, so that when the air gun on the first frame body 12 is working, it outputs energy downwards, and the water flow guided by the swing blade 49 has a boosting and strengthening effect on the energy output of the air gun.

A comprehensive ocean survey ship seabed seismic detection system adopts an ocean comprehensive survey ship 2. The ocean comprehensive survey ship 2 is equipped with ocean comprehensive survey ship seabed seismic detection equipment. The ocean comprehensive survey ship 2 is also equipped with data acquisition and receiving equipment and data processing equipment. and communication equipment. This system has the following operating methods:

S1: Pre-processing, according to the different source positions required for multi-channel seismic and OBS measurements, set interfaces with different spacing distances on the air supply pipe 21;

S2: The first outbound journey: multi-channel seismic measurement and OBS launch, connect the air supply pipe 21 to the multi-channel seismic air gun and tow it, implement multi-channel seismic operations and measurements, and simultaneously launch the OBS marine seismometer into the sea point by point;

S3: The first return trip: replace the air gun and OBS blasting, magnetic detection, use the conversion joint to replace the multi-channel seismic air gun with the large-capacity air gun of OBS, carry out OBS blasting operation, and at the same time tow the magnetometer to collect magnetic data and shipboard gravity measurement ;

S4: On the second outbound journey, the OBS ocean seismometer is recovered and fixed-point seafloor heat flow measurements are performed.

Example 2:

As shown in Figures 9 and 10, a seabed seismic detection equipment for comprehensive marine surveying according to another embodiment of the present invention is different from Embodiment 1 in that the protection component 6 includes a protection base 61, and the first frame The protective base 61 is evenly spaced on the bottom side of the body 12. The adjacent sides of the protective base 61 are provided with bent air columns 62. The air columns 62 of adjacent protective bases 61 are connected to each other. The protective base 61 is provided with a side away from the first frame body 12. There are no less than four wheels 63. The protective base 61 is also provided with no less than one strip base 64 on the side away from the first frame 12. The strip base 64 extends toward the side away from the first frame 12. Provided with strip body 65;

A rotary connecting piece 66 is provided between two adjacent protective base bodies 61 at the bottom corner of the first frame body 12 . The rotary connecting piece 66 is used to connect the first frame body 12 .

Through the above design, by providing the protective assembly 6 at the bottom of the first frame body 12, it is possible to achieve the process of towing the first frame body 12 on the deck of the ship and placing the first frame body 12 in the container. This prevents the bottom of the first frame 12 and the various components in the first frame 12 from friction or wear with the deck; in addition, a plurality of runners 63 are provided on the side of the protective base 61 away from the first frame 12, and the runners 63 can It can slide on the deck and the container; at the same time, because the protective base bodies 61 are connected through the air columns 62, it can be realized that when the first frame body 12 travels in the water body, the protective base body 61 can swing to realize the protection of the first frame body 12 passing by. The water body at the bottom of 12 is diverted, which helps to improve the stability of the water flow below the towing assembly 4 and the first frame 12, and avoids shaking caused by turbulence under the towing assembly 4 and the first frame 12; in addition , the design of the strip body 65 can realize that when the first frame body 12 is placed on the deck or container, there is a gap between the towing assembly 4 and the first frame body 12 and the deck or container, which is convenient for using a forklift or hoisting the first frame body. 12. In addition, due to the existence of gaps, the water on the surface of the towing assembly 4 and the first frame body 12 that are picked up from the water is easy to drip and will not accumulate at the bottom.

Furthermore, the protective component 6 can also be arranged below the dragging component 4 . Thus, the bottom of the towing assembly 4 can be protected, that is, the problems of friction of the towing assembly 4 on the ship hull and laborious towing can be avoided or solved; at the same time, when the towing assembly 4 is placed on the deck or container, the towing assembly 4 and There is a gap between the decks or containers, which facilitates the use of forklifts or hoisting of the towing assembly 4. For the towing assembly 4 picked up from the water, the water on the surface is easy to drip and will not accumulate at the bottom.

The above-described embodiments describe the technical solutions of the present invention in detail. It should be understood that the above-mentioned are only specific embodiments of the present invention and are not intended to limit the present invention. Any work done within the scope of the principles of the present invention Any modifications, additions or similar substitutions shall be included in the protection scope of the present invention.

Claims (8)

1. The marine submarine earthquake detection device for the marine comprehensive survey vessel comprises a earthquake source device, a gun array device (1) and a detection device, wherein the earthquake source device and the detection device are arranged on the marine comprehensive survey vessel (2), the earthquake source device comprises at least one air compressor, the air compressor is connected with an air supply pipe (21), the air supply pipe (21) is connected with the gun array device (1) at intervals, the marine submarine earthquake detection device is characterized in that the gun array device (1) comprises a conversion head (11), the conversion head (11) comprises at least 3 ports (111), one end of the conversion head (11) is connected with the air supply pipe (21), other ports (111) of the conversion head (11) are connected with air guns, each port (111) of the conversion head (11) is sleeved with a sliding sleeve (3), the sliding sleeve (3) comprises a sliding pipe (31), the sliding pipe (31) is coaxially provided with a through hole (32), the sliding pipe (31) is annularly provided with air bags (33) arranged along the length direction of the sliding pipe (31), the two ends of each air bag (33) extend with a hose (34), and the hose (34) is connected with a hose (31) in a bending mode.

The marine integrated survey vessel (2) extends to form a towing cable, and the towing cable is connected with the gun array equipment (1).

2. Marine seismic survey apparatus as claimed in claim 1, wherein the conversion head (11) is connected to an explosion chamber of an air gun.

3. The marine seismic exploration equipment of claim 1, wherein the gun array equipment (1) further comprises a first frame body (12), the air gun is fixed in the first frame body (12), an adjusting component (13) is arranged in the first frame body (12), the adjusting component (13) is also arranged on the top side of the first frame body (12), a towing component (4) is arranged on the side of the first frame body (12), and a protection component (6) is arranged at the bottom of the first frame body (12).

4. A marine seismic exploration equipment according to claim 3, wherein the towing assembly (4) comprises a first plate body (41), a connecting rod (42) is arranged on one side of the first plate body (41), the connecting rod (42) is hinged with the first frame body (12), at least two first connecting rods (43) are arranged on the other side of the first plate body (41), a hinged frame (44) is connected to the other end of the first connecting rods (43), a connecting column (45) is arranged on one side, far away from the first plate body (41), of the hinged frame (44), and a connecting hole (46) is formed in the side of the connecting column (45);

one side of the first plate body (41) connected with the first connecting rod (43) is provided with a connecting rope body (47).

5. The marine seismic exploration equipment of claim 4, wherein the first connecting rod (43) is provided with a telescopic body (5), the telescopic body (5) comprises telescopic cover bodies (51) which are oppositely arranged, a first spring (53) is arranged between the telescopic cover bodies (51), and a first hole body (52) is arranged on the telescopic cover bodies (51).

6. The marine seismic exploration equipment of claim 4, wherein a coiling disc body (48) is arranged between the first connecting rods (43), the coiling disc body (48) is a ring pipe (481) with a notch, and the connecting rope body (47) penetrates through the ring pipe (481).

7. Marine seismic survey apparatus as claimed in claim 4, wherein the tow assembly (4) is provided with swing blades (49) symmetrically on both sides, the swing blades (49) being in rotational connection with the first link (43).

8. Marine seismic survey system for a marine survey vessel, characterized in that a marine survey vessel (2) is employed, the marine survey vessel (2) being provided with marine survey marine seismic survey equipment as defined in any one of claims 1-7, the marine survey vessel (2) being further provided with data acquisition and reception equipment, data processing equipment and communication equipment.