CN114002004A - Deepwater pressure-maintaining vibration sampling and operating method - Google Patents
Deepwater pressure-maintaining vibration sampling and operating method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/021—Correlating sampling sites with geographical information, e.g. GPS
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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Abstract
The invention discloses a deepwater pressure-maintaining vibration sampling device and an operation method, and relates to a deepwater exploration technology, wherein the deepwater pressure-maintaining vibration sampling device comprises a rack with a base, and a vibration exciter, a rotary disc type pipe storage rack, a power head, a pipe moving manipulator, a lifting mechanism and a clamping mechanism are arranged on the rack, wherein the vibration exciter is used for enabling a sampling pipe to be drilled into a rock-soil layer when the vibration sampling device is in ocean operation; the lifting mechanism is used for lifting or lowering the sampling tube; the clamping mechanism is used for clamping the sampling tube or the pressure maintaining tube in the sampling tube replacing process and the pressure maintaining tube loading process; the power head is used for assembling and disassembling a threaded top cover at the upper end of the sampling tube and assembling and disassembling a pressure maintaining top cover of the pressure maintaining tube; the tube moving manipulator is used for transferring the sampling tube or the pressure maintaining tube in the sampling tube replacing process and the pressure maintaining tube loading process; the rotary disc type storage tube rack is used for storing the sampling tube and the pressure-maintaining tube. The sampling tube is arranged in the pressure maintaining tube, so that the mechanism can maintain the pressure of the vibration coring sample.
Description
Technical Field
The invention relates to a deep sea exploration technology, in particular to a deep water pressure maintaining vibration sampling and operating method.
Background
The sampling of the seabed sediments has important significance for the aspects of recognizing the change of the earth environment, predicting the long-term change of future climate, searching seabed new energy, namely natural gas hydrate, researching the diversity of extreme microorganisms in the ocean, developing and applying biological gene resources and the like. However, when the traditional sampling equipment is used for sampling, due to the interaction between the sampler and the sediment, the original sequence of the sediment sample is often mixed or bent and deformed, and the integrity of the information record of the sample is damaged; when natural gas hydrate and overlying sediments thereof are collected, because pressure-maintaining sampling cannot be carried out, the natural gas hydrate and other gas phase components in a sample are lost, and the original components and the state of the sediments are difficult to accurately reflect, so that adverse effects can be caused when natural gas hydrate mineralization conditions are analyzed, hydrate mineral deposit characteristic marks are searched, the hydrate distribution range is defined, and resource perspective evaluation is carried out; when a submarine sediment sample containing barotropic microorganisms is collected, the failure of pressure-maintaining sampling can reduce the metabolic activity of the barotropic bacteria, the generation time is long, the growth is not vigorous, and the growth period is long.
However, the existing submarine sediment sampling operation mechanism has the problems that the pressure maintaining of the vibration coring sample cannot be realized and the continuous operation is inconvenient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a deep water pressure-maintaining vibration sampling and operating method, wherein in the process of sampling the submarine sediments, a sampling tube is placed in a pressure-maintaining tube, so that the mechanism can realize pressure maintaining on the vibration coring samples, and simultaneously, the problem of continuous operation on the seabed can be solved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a deepwater pressure-maintaining vibration sampling device comprises a frame with a base, wherein a vibration exciter, a rotary disc type pipe storage rack, a power head, a pipe moving manipulator, a lifting mechanism and a clamping mechanism are arranged on the frame,
the vibration exciter is used for enabling the vibration sampling device to drill the sampling tube into a rock-soil layer during ocean operation;
the lifting mechanism is used for lifting or lowering the sampling tube;
the clamping mechanism is used for clamping the sampling tube or the pressure maintaining tube in the sampling tube replacing process and the pressure maintaining tube loading process;
the power head is used for assembling and disassembling a thread top cover at the upper end of the sampling tube and assembling and disassembling a pressure maintaining top cover of the pressure maintaining tube;
the pipe moving manipulator is used for transferring the sampling pipe or the pressure maintaining pipe in the sampling pipe replacing process and the pressure maintaining pipe loading process;
the rotary disc type storage tube rack is used for storing the sampling tube and the pressure-maintaining tube.
The deep water pressure-maintaining vibration sampling device further comprises: the vibration exciter comprises a vibration exciter shell, two vibration exciting motors and eccentric weights, wherein the vibration exciter shell is internally provided with the two vibration exciting motors, the two vibration exciting motors are arranged on the inner sides of two end parts of the vibration exciter shell, and an output shaft of each vibration exciting motor is connected with the eccentric weights which are offset by a set distance from the axis of the output shaft.
The deep water pressure-maintaining vibration sampling device further comprises: the lifting mechanism comprises a top clamp, an upper bottom clamp and a lower bottom clamp, wherein the top clamp is arranged below the power head and is provided with two V-shaped clamp heads, and the two V-shaped clamp heads move oppositely to clamp the sampling tube; the upper bottom clamp and the lower bottom clamp are arranged right below the top clamp, the upper bottom clamp and the lower bottom clamp are respectively provided with two V-shaped clamp heads, and the two V-shaped clamp heads move oppositely to clamp a sampling tube.
The deep water pressure-maintaining vibration sampling device further comprises: the top tong is also provided with a tong stroke hydraulic cylinder and a top tong hydraulic cylinder, and the top tong stroke hydraulic cylinder is used for driving the two V-shaped tong heads of the top tong to move up and down; the top tong hydraulic cylinder is used for driving the two V-shaped tong heads of the top tong to move oppositely.
The deep water pressure-maintaining vibration sampling device further comprises: the lifting mechanism comprises a plurality of guide pulleys and at least one winch, the guide pulleys are arranged on the upper portion of the rack, and the winch is connected to the sampling tube through a rope via the guide pulleys.
The deep water pressure-maintaining vibration sampling device further comprises: the pressure maintaining pipe comprises a pressure maintaining top cover, a pressure maintaining outer barrel and a pressure maintaining base from top to bottom, wherein the pressure maintaining outer barrel is internally provided with a cavity for accommodating the sampling pipe, the pressure maintaining base is internally provided with a one-way valve and an overflow valve, the set pressure of the overflow valve is greater than the stratum pressure of the stratum where the sample is located when sampling operation is carried out, so that the sample is not decompressed in the pressure maintaining pipe, and the pressure maintaining top cover is used for sealing and sealing the cavity of the pressure maintaining outer barrel.
The deep water pressure-maintaining vibration sampling device further comprises: at least part of the sampling tube is provided with a knife edge at the bottom.
The deep water pressure-maintaining vibration sampling device further comprises: the device also comprises a variable frequency controller, a transformer set, a measurement and control unit, a junction box, a balancing weight and a weighing head.
The deep water pressure maintaining vibration sampling operation method utilizing the vibration sampling device comprises the following steps:
after the drilling operation is finished, the sampling tube is lifted by utilizing a lifting mechanism, and simultaneously, the upper bottom clamp and the lower bottom clamp are used for holding the sampling tube;
the thread at the upper end of the sampling tube is removed by using the power head, and the sampling tube filled with the sample is temporarily stored in the rotary disc type tube storage rack by using the tube moving manipulator;
taking out the pressure maintaining cylinder from the rotary disc type pipe storage rack by using a pipe moving manipulator, placing the pressure maintaining cylinder below the power head, clamping the pressure maintaining cylinder by using an upper base clamp and a lower base clamp, and detaching a pressure maintaining top cover by using the power head;
taking out the sample tube filled with the sample from the rotary disc type tube storage rack by using a tube moving manipulator, and putting the sample tube into a pressure maintaining cylinder below a power head;
a power head is used for installing the top cover of the pressure maintaining cylinder on the pressure maintaining cylinder to achieve the pressure maintaining effect;
and (4) moving the pressure maintaining cylinder filled with the sample tube to the rotary disc type storage tube rack by using a tube moving manipulator.
The deep water pressure maintaining vibration sampling operation method further comprises the following steps: when the aperture of the drilling operation is reduced, the sampling tube with the knife edge is lowered to perform reaming, and then a new vibration sampling is performed.
The deep water pressure maintaining vibration sampling operation method further comprises the following steps: before the drilling operation, the method also comprises the following steps:
using a shipborne telescopic crane to hoist the vibration sampling device in an operation area of a starboard of a ship back deck;
slowly lifting the vibration sampling device by using a telescopic crane;
stabilizing a base of the vibration sampling device, hoisting the vibration sampling device by using a telescopic crane to slowly discharge the vibration sampling device out of a stern and descend the vibration sampling device into water, and simultaneously discharging a vibration exciter and a sensor cable into the water;
when the vibration sampling device touches the seabed, commanding the crane to pre-discharge a plurality of steel wire ropes according to the length of the sampling pipe, the flow direction and the flow speed of water;
and after the vibration sampling device is grounded, starting a vibration exciter to drill.
The deep water pressure maintaining vibration sampling operation method further comprises the following steps: after the drilling operation, the method further comprises the following steps:
observing the display states of the navigation positioning display and the footage display device, and recovering the vibration sampler after the vibration sampling device drills to a preset depth;
after the vibration sampling device is lifted from the water surface, the vibration sampling device is hooked by an iron hook and is slowly lifted into a deck under the cooperation of a telescopic crane and then is placed in an operation area.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the pressure maintaining cylinder is used for maintaining the pressure of the vibration coring sample, so that the pressure maintaining success rate can be greatly improved, and the pressure loss of the sample from the seabed to the deck surface of the mother ship is avoided. The operation mode of vibration sampling and the pressure maintaining cylinder reduces the disturbance to the sample to the maximum extent, and ensures the originality and the purity of the sample.
The rotary power head is arranged below the vibration exciter, so that the problem that a sampling tube cannot be additionally connected with the vibration sampler is solved, the drilling coring depth of the vibration sampler is greatly increased, and the application range of the vibration sampler is expanded. The installation of the top clamp can play a role in righting and centering when the power head is used for connecting and disconnecting the sampling tube, so that the difficulty in connecting and disconnecting the sampling tube of the seabed vibration sampler is reduced. The upper and lower position of top pincers can be controlled to the top pincers stroke jar, can avoid the collision of sampling tube and top pincers, also can freely select the position that the top pincers press from both sides and get the appearance pipe.
The invention improves the verticality of the sampling tube and the drilling tool by arranging the double-bottom tongs (the upper bottom tongs and the lower bottom tongs), avoids the problem that the sampling tube, the pressure maintaining cylinder and the power head are not aligned when a single tong is used, and greatly improves the operation success rate of additionally connecting the sampling tube.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a vibration sampling apparatus according to an embodiment of the present invention;
FIG. 2 is a top view of a vibratory sampling apparatus in accordance with an embodiment of the present invention;
FIG. 3 is a first view of the internal structure of a vibration exciter according to an embodiment of the present invention;
FIG. 4 is a second view of the internal structure of a vibration exciter according to an embodiment of the present invention;
FIG. 5 is a side view of a vibration exciter according to an embodiment of the present invention;
FIG. 6 is a top jaw of the embodiment of the present invention;
FIG. 7 is a schematic structural view of a sampling tube according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a pressure-holding tube according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a pressure maintaining tube with a knife edge according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a load bearing head according to an embodiment of the present invention.
Wherein: 1. a frame; 101. a guide pulley; 102. a winch; 103. a base; 2. a vibration exciter; 201. a vibration exciter shell; 202. an excitation motor; 203. an eccentric weight; 3. rotating the disc type pipe storage rack; 4. a power head; 5. a pipe moving manipulator; 6. ejecting a clamp; 601. a top tong stroke hydraulic cylinder; 602. a top tong hydraulic cylinder; 7. upper bottom tongs; 8. a lower bottom clamp; 9. a sampling tube; 901. a knife edge; 10. a pressure maintaining pipe; 1001. pressure maintaining top cover; 1002. pressure maintaining outer cylinders; 1003. a pressure maintaining base; 1004. a one-way valve; 1005. an overflow valve; 11. a variable frequency controller; 12. a transformer bank; 13. a measurement and control unit; 14. a junction box; 15. a balancing weight; 16. a measurement and control unit; 17. a load bearing head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
Example (b):
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a vibration sampling device according to an embodiment of the present invention; FIG. 2 is a top view of a vibratory sampling apparatus in accordance with an embodiment of the present invention; FIG. 3 is a first view of the internal structure of a vibration exciter according to an embodiment of the present invention; FIG. 4 is a second view of the internal structure of a vibration exciter according to an embodiment of the present invention; FIG. 5 is a side view of a vibration exciter according to an embodiment of the present invention; FIG. 6 is a top jaw of the embodiment of the present invention; FIG. 7 is a schematic structural view of a sampling tube according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of a pressure-holding tube according to an embodiment of the present invention; FIG. 9 is a schematic structural view of a pressure maintaining tube with a knife edge according to an embodiment of the present invention; fig. 10 is a schematic structural diagram of a load bearing head according to an embodiment of the present invention.
The invention provides a deep water pressure-maintaining vibration sampling and operating method, wherein in the process of sampling submarine sediments, a sampling tube is arranged in a pressure-maintaining tube, so that a mechanism can realize pressure maintaining on a vibration coring sample, and simultaneously, the problem of continuous operation on the seabed can be solved.
A deepwater pressure-maintaining vibration sampling device comprises a rack 1 with a base 103, wherein a vibration exciter 2, a rotary disc type pipe storage rack 3, a power head 4, a pipe moving manipulator 5, a lifting mechanism and a clamping mechanism are arranged on the rack 1, and the vibration exciter 2 is used for enabling a sampling pipe 9 to drill into a rock-soil layer during marine operation of the vibration sampling device; the lifting mechanism is used for lifting or lowering the sampling tube 9; the clamping mechanism is used for clamping the sampling tube 9 or the pressure maintaining tube 10 in the process of replacing the sampling tube 9 and loading the pressure maintaining tube 10; the power head 4 is used for assembling and disassembling a threaded top cover at the upper end of the sampling tube 9 and a pressure maintaining top cover 1001 for assembling and disassembling a pressure maintaining tube 10; the tube moving manipulator 5 is used for transferring the sampling tube 9 or the pressure maintaining tube 10 in the process of replacing the sampling tube 9 and loading the pressure maintaining tube 10; the rotary disc type storage tube rack 3 is used for storing a sampling tube 9 and a pressure-maintaining tube 10. The sample of sampling tube 9 is pressurize through the section of thick bamboo that keeps pressure, can improve the pressurize success rate greatly, has avoided the pressure loss of sample from the seabed to mother ship deck face in-process. The operation mode of vibration sampling + section of thick bamboo of pressurize has furthest reduced the disturbance to the sample, has guaranteed the primitiveness and the pure nature of sample, can continuously change sampling tube 9 simultaneously at the operation in-process, improves the operating efficiency. In addition, through the mode of transferring installation rotary unit head 4 at vibration exciter 2, solved the vibration sampler and can not add the problem of connecing sampling tube 9, greatly increased the core degree of depth is got in the drilling of vibration sampler, has expanded the application range of vibration sampler.
As an alternative embodiment, in some embodiments, the exciter 2 includes an exciter housing 201, two exciting motors 202, and an eccentric weight 203, wherein two exciting motors 202 are disposed in the exciter housing 201, the two exciting motors 202 are disposed inside two end portions of the exciter housing 201, and an eccentric weight 203 offset from an axis of the output shaft by a set distance is connected to an output shaft of each exciting motor 202.
As an alternative embodiment, in some embodiments, the lifting mechanism comprises a top clamp 6, an upper bottom clamp 7 and a lower bottom clamp 8, wherein the top clamp 6 is disposed below the power head 4 and has two V-shaped clamp heads, which move towards each other to clamp a sampling tube 9; the upper bottom clamp 7 and the lower bottom clamp 8 are arranged right below the top clamp 6, the upper bottom clamp 7 and the lower bottom clamp 8 are provided with two V-shaped clamp heads, and the two V-shaped clamp heads move oppositely to clamp the sampling tube 9. In this embodiment, the installation of the top clamp 6 can play a role in centering when the power head 4 is used for connecting and disconnecting the sampling tube 9, thereby reducing the difficulty in connecting and disconnecting the sampling tube 9 to and from the seabed vibration sampler. The upper and lower position of the top tong 6 can be controlled by the stroke cylinder of the top tong 6, the collision between the sampling tube 9 and the top tong 6 can be avoided, and the position of the sampling tube 9 can be freely selected by the top tong 6.
As an alternative embodiment, in some embodiments, the top tong 6 is further provided with a tong stroke hydraulic cylinder and a top tong 6 clamp hydraulic cylinder, and the top tong 6 stroke hydraulic cylinder is used for driving two V-shaped tong heads of the top tong 6 to move up and down; the hydraulic cylinder of the top tong 6 is used for driving the two V-shaped tong heads of the top tong 6 to move oppositely. In this embodiment, the top clamp 6 is used to align the axis of the sampling tube 9 or the pressure maintaining cylinder with the power head 4. By arranging the double-bottom tongs (the upper bottom tongs 7 and the lower bottom tongs 8), the verticality of the sampling tube 9 and the drilling tool is improved, the problem that the sampling tube 9, the pressure maintaining cylinder and the power head 4 are not aligned when a single tong is used is avoided, and the operation success rate of additionally connecting the sampling tube 9 is greatly improved.
As an alternative embodiment, in some embodiments, the lifting mechanism comprises a plurality of guide pulleys 101 and at least one hoist 102, the guide pulleys 101 are disposed at an upper portion of the frame 1, and the hoist 102 is connected to the sampling tube 9 through the guide pulleys 101 by a rope.
As an optional implementation manner, in some embodiments, the pressure maintaining pipe 10 includes a pressure maintaining top cover 1001, a pressure maintaining outer cylinder 1002 and a pressure maintaining base 1003 from top to bottom, wherein a cavity for accommodating the sampling pipe 9 is disposed in the pressure maintaining outer cylinder 1002, a one-way valve 1004 and an overflow valve 1005 are disposed in the pressure maintaining base 1003, a set pressure of the overflow valve 1005 is greater than a formation pressure of a formation where a sample is located during a sampling operation so as to ensure that the sample does not lose pressure in the pressure maintaining pipe 10, and the pressure maintaining top cover 1001 is used for sealing and closing the cavity of the pressure maintaining outer cylinder 1002.
As an alternative embodiment, in some embodiments, at least a portion of the bottom of the sampling tube 9 is provided with a knife edge 901.
As an optional implementation manner, in some embodiments, the system further includes a variable frequency controller 11, a transformer bank 12, a measurement and control unit 1613, a distribution box 14, and a counterweight 15.
The deep water pressure maintaining vibration sampling operation method utilizing the vibration sampling device comprises the following steps:
step 101: after the drilling operation is completed, the sampling tube is lifted by the lifting mechanism, and the upper and lower bottom clamps are used to hold the sampling tube.
Step 102: the screw thread on the upper end of the sampling tube is removed by using the power head, and the sampling tube filled with the sample is temporarily stored to the rotary disc type tube storage rack by using the tube moving manipulator.
Step 103: and the pressure maintaining cylinder is taken out from the rotary disc type pipe storage rack by using a pipe moving manipulator and is placed below the power head, the pressure maintaining cylinder is clamped by the upper bottom clamp and the lower bottom clamp, and the pressure maintaining top cover is detached by using the power head.
Step 104: and taking out the sample tube filled with the sample from the rotary disc type tube storage rack by using a tube moving manipulator, and putting the sample tube into a pressure maintaining cylinder below the power head.
Step 105: the power head is used for installing the pressure maintaining cylinder top cover on the pressure maintaining cylinder, and the pressure maintaining effect is achieved.
Step 106: and (4) moving the pressure maintaining cylinder filled with the sample tube to the rotary disc type storage tube rack by using a tube moving manipulator.
As an alternative implementation mode, in some embodiments, when the bore diameter of the drilling operation is reduced, the sampling tube with the knife edge is lowered to be reamed, and then a new vibration sampling is performed.
As an alternative implementation, in some embodiments, the job method may include:
step 201: and using a ship-borne telescopic crane to hoist the vibration sampling device in an operation area on the starboard of the ship back deck.
Step 202: and slowly lifting the vibration sampling device by using a telescopic crane.
Step 203: and (3) stabilizing the base of the vibration sampling device, hoisting the vibration sampling device by using a telescopic crane to slowly discharge the stern and descend into water, and simultaneously discharging a vibration exciter and a sensor cable into the water.
Step 204: when the vibration sampling device touches the seabed, the crane is instructed to release a plurality of steel wire ropes according to the length of the sampling tube and the flow direction and the flow speed of water.
Step 205: and after the vibration sampling device is grounded, starting a vibration exciter to drill.
Step 206: after the drilling operation is completed, the sampling tube is lifted by the lifting mechanism, and the upper and lower bottom clamps are used to hold the sampling tube.
Step 207: the screw thread on the upper end of the sampling tube is removed by using the power head, and the sampling tube filled with the sample is temporarily stored to the rotary disc type tube storage rack by using the tube moving manipulator.
Step 208: and the pressure maintaining cylinder is taken out from the rotary disc type pipe storage rack by using a pipe moving manipulator and is placed below the power head, the pressure maintaining cylinder is clamped by the upper bottom clamp and the lower bottom clamp, and the pressure maintaining top cover is detached by using the power head.
Step 209: and taking out the sample tube filled with the sample from the rotary disc type tube storage rack by using a tube moving manipulator, and putting the sample tube into a pressure maintaining cylinder below the power head.
Step 210: the power head is used for installing the pressure maintaining cylinder top cover on the pressure maintaining cylinder, and the pressure maintaining effect is achieved.
Step 211: and (4) moving the pressure maintaining cylinder filled with the sample tube to the rotary disc type storage tube rack by using a tube moving manipulator.
As an alternative implementation, in some embodiments, the job method may include:
step 301: and using a ship-borne telescopic crane to hoist the vibration sampling device in an operation area on the starboard of the ship back deck.
Step 302: and slowly lifting the vibration sampling device by using a telescopic crane.
Step 303: and (3) stabilizing the base of the vibration sampling device, hoisting the vibration sampling device by using a telescopic crane to slowly discharge the stern and descend into water, and simultaneously discharging a vibration exciter and a sensor cable into the water.
Step 304: when the vibration sampling device touches the seabed, the crane is instructed to release a plurality of steel wire ropes according to the length of the sampling tube and the flow direction and the flow speed of water.
Step 305: and after the vibration sampling device is grounded, starting a vibration exciter to drill.
Step 306: after the drilling operation is completed, the sampling tube is lifted by the lifting mechanism, and the upper and lower bottom clamps are used to hold the sampling tube.
Step 307: the screw thread on the upper end of the sampling tube is removed by using the power head, and the sampling tube filled with the sample is temporarily stored to the rotary disc type tube storage rack by using the tube moving manipulator.
Step 308: and the pressure maintaining cylinder is taken out from the rotary disc type pipe storage rack by using a pipe moving manipulator and is placed below the power head, the pressure maintaining cylinder is clamped by the upper bottom clamp and the lower bottom clamp, and the pressure maintaining top cover is detached by using the power head.
Step 309: and taking out the sample tube filled with the sample from the rotary disc type tube storage rack by using a tube moving manipulator, and putting the sample tube into a pressure maintaining cylinder below the power head.
Step 310: the power head is used for installing the pressure maintaining cylinder top cover on the pressure maintaining cylinder, and the pressure maintaining effect is achieved.
Step 311: and (4) moving the pressure maintaining cylinder filled with the sample tube to the rotary disc type storage tube rack by using a tube moving manipulator.
Step 312: and observing the display states of the navigation positioning display and the footage display device, and recovering the vibration sampler after the vibration sampling device drills to a preset depth.
Step 313: after the vibration sampling device is lifted from the water surface, the vibration sampling device is hooked by an iron hook and is slowly lifted into a deck under the cooperation of a telescopic crane and then is placed in an operation area.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The utility model provides a deep water pressurize vibration sampling device, includes the frame that has the base, its characterized in that: the frame is provided with a vibration exciter, a rotary disc type pipe storage rack, a power head, a pipe moving manipulator, a lifting mechanism and a clamping mechanism,
the vibration exciter is used for enabling the vibration sampling device to drill the sampling tube into a rock-soil layer during ocean operation;
the lifting mechanism is used for lifting or lowering the sampling tube;
the clamping mechanism is used for clamping the sampling tube or the pressure maintaining tube in the sampling tube replacing process and the pressure maintaining tube loading process;
the power head is used for assembling and disassembling a thread top cover at the upper end of the sampling tube and assembling and disassembling a pressure maintaining top cover of the pressure maintaining tube;
the pipe moving manipulator is used for transferring the sampling pipe or the pressure maintaining pipe in the sampling pipe replacing process and the pressure maintaining pipe loading process;
the rotary disc type storage tube rack is used for storing the sampling tube and the pressure-maintaining tube.
2. The deep water dwell vibration sampling device of claim 1, wherein: the vibration exciter comprises a vibration exciter shell, two vibration exciting motors and eccentric weights, wherein the vibration exciter shell is internally provided with the two vibration exciting motors, the two vibration exciting motors are arranged on the inner sides of two end parts of the vibration exciter shell, and an output shaft of each vibration exciting motor is connected with the eccentric weights which are offset by a set distance from the axis of the output shaft.
3. The deep water dwell vibration sampling device of claim 1, wherein: the lifting mechanism comprises a top clamp, an upper bottom clamp and a lower bottom clamp, wherein the top clamp is arranged below the power head and is provided with two V-shaped clamp heads, and the two V-shaped clamp heads move oppositely to clamp the sampling tube; the upper bottom clamp and the lower bottom clamp are arranged right below the top clamp, the upper bottom clamp and the lower bottom clamp are respectively provided with two V-shaped clamp heads, and the two V-shaped clamp heads move oppositely to clamp a sampling tube.
4. The deep water dwell vibration sampling device of claim 3, wherein: the top tong is also provided with a tong stroke hydraulic cylinder and a top tong hydraulic cylinder, and the top tong stroke hydraulic cylinder is used for driving the two V-shaped tong heads of the top tong to move up and down; the top tong hydraulic cylinder is used for driving the two V-shaped tong heads of the top tong to move oppositely.
5. The deep water dwell vibration sampling device of claim 1, wherein: the lifting mechanism comprises a plurality of guide pulleys and at least one winch, the guide pulleys are arranged on the upper portion of the rack, and the winch is connected to the sampling tube through a rope via the guide pulleys.
6. The deep water dwell vibration sampling device of claim 1, wherein: the pressure maintaining pipe comprises a pressure maintaining top cover, a pressure maintaining outer barrel and a pressure maintaining base from top to bottom, wherein the pressure maintaining outer barrel is internally provided with a cavity for accommodating the sampling pipe, the pressure maintaining base is internally provided with a one-way valve and an overflow valve, the set pressure of the overflow valve is greater than the stratum pressure of the stratum where the sample is located when sampling operation is carried out, so that the sample is not decompressed in the pressure maintaining pipe, and the pressure maintaining top cover is used for sealing and sealing the cavity of the pressure maintaining outer barrel.
7. The deep water dwell vibration sampling device of claim 1, wherein: at least part of the sampling tube is provided with a knife edge at the bottom.
8. A deep water pressure-holding vibration sampling operation method, wherein the vibration sampling device according to any one of claims 1 to 9 is used, comprising the steps of:
after the drilling operation is finished, the sampling tube is lifted by utilizing a lifting mechanism, and simultaneously, the upper bottom clamp and the lower bottom clamp are used for holding the sampling tube;
the thread at the upper end of the sampling tube is removed by using the power head, and the sampling tube filled with the sample is temporarily stored in the rotary disc type tube storage rack by using the tube moving manipulator;
taking out the pressure maintaining cylinder from the rotary disc type pipe storage rack by using a pipe moving manipulator, placing the pressure maintaining cylinder below the power head, clamping the pressure maintaining cylinder by using an upper base clamp and a lower base clamp, and detaching a pressure maintaining top cover by using the power head;
taking out the sample tube filled with the sample from the rotary disc type tube storage rack by using a tube moving manipulator, and putting the sample tube into a pressure maintaining cylinder below a power head;
a power head is used for installing the top cover of the pressure maintaining cylinder on the pressure maintaining cylinder to achieve the pressure maintaining effect;
and (4) moving the pressure maintaining cylinder filled with the sample tube to the rotary disc type storage tube rack by using a tube moving manipulator.
9. The deep water pressure maintaining vibration sampling operation method according to claim 8, wherein when the bore diameter of the drilling operation is reduced, the sampling tube with the knife edge is lowered to expand the bore, and then a new vibration sampling is performed.
10. The method of claim 8, further comprising, prior to the drilling operation:
using a shipborne telescopic crane to hoist the vibration sampling device in an operation area of a starboard of a ship back deck;
slowly lifting the vibration sampling device by using a telescopic crane;
stabilizing a base of the vibration sampling device, hoisting the vibration sampling device by using a telescopic crane to slowly discharge the vibration sampling device out of a stern and descend the vibration sampling device into water, and simultaneously discharging a vibration exciter and a sensor cable into the water;
when the vibration sampling device touches the seabed, commanding the crane to pre-discharge a plurality of steel wire ropes according to the length of the sampling pipe, the flow direction and the flow speed of water;
and after the vibration sampling device is grounded, starting a vibration exciter to drill.
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