CN214460268U - Deep-water static sounding deep hole penetration device - Google Patents

Deep-water static sounding deep hole penetration device Download PDF

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Publication number
CN214460268U
CN214460268U CN202120290585.0U CN202120290585U CN214460268U CN 214460268 U CN214460268 U CN 214460268U CN 202120290585 U CN202120290585 U CN 202120290585U CN 214460268 U CN214460268 U CN 214460268U
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penetration
deep
hole
probe
assembly frame
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杨玉凤
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杨玉凤
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Abstract

The utility model discloses a deep-water static sounding deep-hole penetration device, which comprises a penetration assembly frame; the lower end of the penetration assembly frame is provided with a probe; hole sweeping devices are arranged on two sides of the probe; a telescopic device is arranged in the penetration assembly frame; the telescopic device drives the probe to reciprocate along the vertical direction, and controls the probe to extend out or retract into the lower end of the penetrating assembly frame; a hole sweeping driving device is arranged in the penetration assembly frame; the hole sweeping driving device drives the hole sweeping device to operate. The utility model can significantly improve the static penetration and can compensate the wave; and the operation is safer and more convenient.

Description

Deep-water static sounding deep hole penetration device
Technical Field
The utility model relates to a sand stratum static exploration technical field under water, in particular to deep water static sounding deep hole injection device.
Background
In the heart technology, the underwater static sounding modes comprise seabed static sounding, self-elevating ocean platform static sounding, wave compensation ocean static sounding, tower platform ocean static sounding and deep water drilling ocean static sounding.
The seabed static sounding is adaptive to water depth of more than 50 meters, but due to the increase of the static sounding penetration depth, the great side wall friction resistance of the soil layer on the static sounding probe rod cannot be eliminated, and the sounding depth is far from meeting the design requirements of most projects. The deep water drilling type ocean static sounding can adapt to the operation in the water depth of hundreds of meters and can complete the static sounding penetration of more than one hundred meters, but the equipment needs to be constructed by an ocean oil exploration ship, the cost is very high, the labor is very large, the drilling and the penetration cannot be simultaneously carried out, and the operation time is longer.
And the other 3 kinds of adaptive water depth are within 25 meters, but when meeting with the stormy waves and being slightly bigger, the operation platform is influenced by the stormy waves and shakes, and operating personnel on the operation platform have potential safety hazards and can not adapt to projects with water depth more than 25 meters.
Therefore, how to further improve the depth of the static water and increase the penetration depth and realize the wave compensation becomes a technical problem which needs to be solved urgently by the technical personnel in the field on the premise of reducing the investment and ensuring the operation safety.
SUMMERY OF THE UTILITY MODEL
In view of the above defects in the prior art, the utility model provides a deep water static sounding deep hole penetration device, which achieves the purposes of reaching the water depth of more than 100 m and the static sounding depth of more than 100 m, and can compensate the waves; rivers cause the displacement of construction ship scope nature or make a round trip to rock, and quiet spy penetration is not influenced, and the operation is safe simple and convenient, further improves the working efficiency to reduce intensity of labour, further reduce cost.
In order to achieve the purpose, the utility model discloses a deep-water static sounding deep hole injection device, which comprises an injection assembly frame; the lower end of the penetration assembly frame is provided with a probe; hole sweeping devices are arranged on two sides of the probe;
a telescopic device is arranged in the penetration assembly frame; the telescopic device drives the probe to reciprocate along the vertical direction, and controls the probe to extend out or retract into the lower end of the penetrating assembly frame;
a hole sweeping driving device is arranged in the penetration assembly frame; the hole sweeping driving device drives the hole sweeping device to operate.
Preferably, the lower end of the penetration assembly frame is provided with four hole sweeping devices; the four hole sweeping devices are uniformly distributed around the probe.
Preferably, the hole sweeping device is a hole sweeping drill bit or a hole sweeping wheel;
the hole sweeping driving device is a hydraulic motor, a pneumatic motor or an electric motor.
Preferably, the telescopic device is fixed with the inner wall of the frame of the penetration assembly through a fixing bracket.
Preferably, the telescopic device is a hydraulic cylinder or a pneumatic cylinder;
and the hydraulic cylinder or a piston rod of the pneumatic cylinder is connected with the probe through a probe rod to drive the probe to reciprocate.
Preferably, a liquid flushing and sucking pipe is arranged in the penetration assembly frame;
the lower end of the flushing and liquid sucking pipe extends out of the lower end of the penetrating combined body frame and the side face of the probe and is used for pumping slurry below the penetrating combined body frame or spraying flushing liquid below the penetrating combined body frame.
More preferably, the part of the flushing and sucking pipe close to the lower end is connected with a positive and negative gas lift circulating gas pipe;
the positive and negative gas lift circulating gas pipe comprises a gas ejection pipe and a one-way valve;
the part of the flushing and sucking pipe close to the lower end is sequentially connected with the one-way valve and the gas ejection pipe to form one-way conduction from the gas ejection pipe to the flushing and sucking pipe.
Preferably, the gravity ballast body is arranged at the upper end of the penetration assembly frame.
More preferably, the gravity pressure carrier is of a columnar structure and is provided with a vertical through hole; the through hole is used for arranging the flushing and liquid sucking pipe, the telescopic device, the hole sweeping driving device and a control and signal cable of the probe.
More preferably, the upper end of the gravity ballast body is connected with a hoisting device on the water surface construction ship through more than 2 steel wire ropes, and the hoisting device controls the water penetration depth of the gravity ballast body and the penetration assembly frame;
each steel wire rope is provided with a tension sensor;
when the tension borne by any one steel wire rope is different from that of the rest steel wire ropes and exceeds a critical value, the hoisting equipment can adjust the water inlet length of the steel wire rope in time.
More preferably, the upper end of the gravity ballast body is connected with a hoisting device on the surface construction ship through a steel pipe, and the hoisting device controls the water penetration depth of the gravity ballast body and the penetration assembly frame.
The utility model has the advantages that:
the utility model can reach the water depth of more than 100 m, the static sounding depth of more than 100 m, and the wave compensation can be carried out; rivers cause the displacement of construction ship scope nature or make a round trip to rock, and quiet spy penetration is not influenced, and the operation is safe simple and convenient, further improves the working efficiency to reduce intensity of labour, further reduce cost.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 shows a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram illustrating an extended state of the probe according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1 and 2, the deep water static sounding deep hole penetration device comprises a penetration assembly frame 2; the lower end of the penetration assembly frame 2 is provided with a probe 4; two sides of the probe 4 are provided with hole sweeping devices 3;
a telescopic device 5 is arranged in the penetration assembly frame 2; the telescopic device 5 drives the probe 4 to reciprocate along the vertical direction, and controls the probe 4 to extend out or retract into the lower end of the penetration assembly frame 2;
a hole sweeping driving device 6 is arranged in the penetration assembly frame 2; the hole sweeping driving device 6 drives the hole sweeping device 3 to operate.
The working principle of the utility model is as follows:
the telescopic device 5 is used for penetrating and pulling the probe 4, and if a single-piston-rod hydraulic oil cylinder with 1300mm of stroke can be adopted, the stroke of the one-way piston rod can be adjusted according to the requirement.
A plurality of hole devices 3 of sweeping are the drilling tool that is used for continuously getting into the ground and breaks ground to the ground, adopt four drill bits or two to sweep the hole wheel and correspond the rotation and break ground, prevent that the static probe penetration assembly from appearing controlling the displacement at the in-process of drilling.
The penetration assembly frame 2 is used for supporting the gravity pressure carrier 1, the mounting hole sweeping device 3 and the probe 4, so that the penetration equipment becomes an assembly.
The utility model discloses can adopt steel wire rope 12 or steel pipe directly to apply and lift by crane quiet spy injection equipment assembly and creep into and the injection new technology of interlinkage, the activity duration that significantly reduces, it is just can take to make a round trip to hang to put injection equipment assembly to the hole to run into to the hole to meet the hole to one side, ensure the injection quality, when meetting the unable penetration of grit intermediate layer probe, can directly adopt to sweep the hole drill bit (sweep the hole wheel) and clear up the barrier, quiet spy injection assembly equipment is at the bottom of the hole work, stormy waves cause the construction boats and ships to fluctuate and rock and do not influence the injection test
In some embodiments, four hole sweeping devices 3 are arranged at the lower end of the penetration assembly frame 2; four hole sweeping devices 3 are evenly distributed around the probe 4.
In some embodiments, the hole sweeping device 3 is a hole sweeping drill bit or a hole sweeping wheel;
the hole sweeping driving device 6 is a hydraulic motor, a pneumatic motor or an electric motor.
In some embodiments, the telescopic device 5 is fixed to the inner wall of the penetration assembly frame 2 by means of fixing brackets 8.
In some embodiments, the telescopic means 5 are hydraulic or pneumatic cylinders;
the piston rod of the hydraulic cylinder or the pneumatic cylinder is connected with the probe 4 through a probe rod 9 to drive the probe 4 to reciprocate.
In some embodiments, a flushing and sucking pipe 7 is arranged in the penetration assembly frame 2;
the flushing and sucking pipe 7 is used for flushing away the broken muck of the hole sweeping device 3 or sucking out the broken muck.
The lower end of the flushing and liquid sucking pipe 7 extends out of the lower end of the penetration assembly frame 2 and the side surface of the probe 4, and is used for pumping slurry below the penetration assembly frame 2 or spraying flushing liquid below the penetration assembly frame 2.
In some embodiments, the part of the flushing liquid suction pipe 7 near the lower end is connected with the positive and negative gas lift circulating gas pipe 10;
the positive and negative gas lift circulating gas pipe 10 comprises a gas ejection pipe and a one-way valve 11;
the part of the flushing and sucking pipe 7 close to the lower end is sequentially connected with a one-way valve 11 and a gas ejection pipe to form one-way conduction from the gas ejection pipe to the flushing and sucking pipe 7.
In some embodiments, the upper end of the penetration assembly frame 2 is provided with the gravitational pressure carrier 1.
The gravity ballast body 1 can be further used for overcoming the resistance generated by penetration of the static probe into the soil layer, and the required weight can be configured as required.
In some embodiments, the gravity ballast body 1 has a cylindrical structure with a vertical through hole 13; the through hole 13 is used for arranging the flushing liquid suction pipe 7, the telescopic device 5, the hole sweeping driving device 6 and a control and signal cable of the probe 4.
In some embodiments, the upper end of the gravity ballast body 1 is connected with a hoisting device on the surface construction ship through more than 2 steel wire ropes 12, and the hoisting device controls the water penetration depth of the gravity ballast body 1 and the penetration assembly frame 2;
each steel wire rope 12 is provided with a tension sensor;
when the tension carried by any one of the steel wire ropes 12 is different from that of the other steel wire ropes 12 and exceeds a critical value, the hoisting equipment can adjust the water entry length of the steel wire rope 12 in time.
In practical application, the steel wire rope 12 of the hydraulic hoisting winch (crane) can be adopted to directly discharge the static exploration injection assembly equipment to the surface of the sea bed for injection, the discharge water depth can reach more than 100 meters, the whole set of injection equipment is directly lifted out of the water surface after the test is finished, the discharge and recovery equipment is high in speed, and the operation is simple, convenient and safe.
In some embodiments, the upper end of the gravity ballast body 1 is connected with a hoisting device on the surface construction ship through a steel pipe, and the hoisting device controls the water penetration depth of the gravity ballast body 1 and the penetration assembly frame 2.
The steel wire rope 12 is replaced by a large-caliber drill rod or a steel pipe, the liquid flushing pipe is also replaced, the lower end of the large-caliber drill rod is connected with the static exploration injection equipment assembly, the upper part of the large-caliber drill rod is connected with the slurry injection rotary hanging head, the static exploration injection equipment assembly is arranged to a sea bed surface by gradually utilizing the large-caliber drill rod, and the static exploration injection equipment assembly starts to be injected while drilling.
The above scheme has the advantages that the actual penetration depth can be actually and accurately observed, and the error is extremely small. The device has the disadvantages that the time for placing the static probe injection equipment assembly to the sea bed surface is slow, the large-caliber drill rod needs to be lifted and enlarged one by one to place the static probe injection equipment to the sea bed surface, an operator needs to operate on an operation workbench at the edge of a ship, and when the storm of a construction area is slightly large, the operation is unstable, and potential safety hazards exist. After the static exploration penetration is finished, the large-caliber drill rod needs to be hoisted one by one, and the large-caliber drill rod is disassembled one by one to be hoisted out of the water surface of the static exploration penetration equipment.
In practical applications, surface construction vessels are required to be sufficient to meet the tonnage required for offshore operations, including the storm resistance rating.
The hoisting equipment needs double crown blocks, the height of the hoisting equipment meets 15 meters, the hoisting capacity of a hydraulic winch is 400KN, the double steel wire ropes 12 are hoisted up and down, the hoisting length is 150 meters,
the sand and stone slurry pump is used for flushing the liquid suction pipe 7 and is used for flushing the residue soil at the bottom of the hole and absorbing the residue soil at the bottom of the hole, and has positive circulation and reverse circulation functions; and the positive and negative circulation flushing and liquid sucking pipe is used for conveying slurry, flushing a drilled hole and sucking muck.
The liquid flushing pipe 7, the telescopic device 5, the hole sweeping driving device 6 and the control and signal cables of the probe 4 control the extending length through a pipe cable winch.
The telescopic device 5, the hole sweeping driving device 6 and the hydraulic umbilical cable winch can be hydraulically driven, and hydraulic power of a hole sweeping drill bit or a hole sweeping wheel driving motor is conveyed through a high-pressure hydraulic oil conveying pipe.
The gravity ballast body 1 is used for overcoming resistance generated by penetration of the static probe into a soil layer.
The hydraulic hoisting winch discharges and lifts the whole equipment for static body penetration by using a drilling tower with the vertical height of 15 meters and a double-crown block double-steel-wire rope 12, the length of the steel-wire rope 12 is 150 meters, and the phenomena of unstable rotation of the equipment and winding of a flushing and suction pipe, a hydraulic pipe, a probe line and a hoisting steel wire are avoided in the process of discharging and lifting the equipment for static body by using the double-steel-wire rope 12. The hydraulic hoisting winch can adjust the hoisting force of the hoisting through the pressure regulation of the hydraulic power system, and the static exploration penetration can achieve the compensation effect of preventing the static exploration penetration equipment from self-sinking and storm when the penetration equipment assembly self-sinks and the construction ship suffers from storm fluctuation in soft soil layers.
The hydraulic hoisting winch (crane) is provided with an umbilical cable winch disc (the umbilical cable winch disc can also be divided into pipes and line disc winch discs and is arranged on a deck of a construction ship), the lower part of the umbilical cable is connected with static exploration injection equipment, the upper part of the umbilical cable is connected with the umbilical cable winch disc, the umbilical cable consists of an impact liquid suction pipe and a probe cable of a high-pressure oil delivery pipe of a static exploration hydraulic cylinder, slurry is supplied to wash and sweep holes, the high-pressure oil cylinder of the static exploration hydraulic cylinder and a hole sweeping drill bit (a hole sweeping wheel) driving motor are used for delivering high-pressure hydraulic oil, and the static exploration hydraulic cylinder is injected and the hole sweeping drill bit (a hole sweeping wheel) driving motor is used for working. The probe cable is used for transmitting data collected by the probe.
The gravity pressure carrier 1 is made of steel materials, the shape of the gravity pressure carrier can be a rectangular cylinder or a cylinder, the length of the gravity pressure carrier can be set to be a superposition type, the superposition size is set to be 20mm to 1000mm or larger until the requirement of the pressure loading capacity is met, and a single hole with the diameter of 120mm is arranged in the middle of the gravity pressure carrier and is used for the flushing liquid suction pipe, the hydraulic oil pipe and the probe cable to pass through.
The gravity pressure carrier is arranged at the top end of the frame of the static exploration work assembly, the rebound effect of equipment is generated when the static exploration penetration equipment is suppressed, and the length of the gravity pressure carrier can be configured according to the penetration requirement.
The static exploration working assembly consists of a static exploration penetration hydraulic oil cylinder, a hole sweeping drill bit (hole sweeping wheel), a slurry flushing slag suction pipe and a drilling hole sweeping drill bit (hole sweeping wheel) driving hydraulic motor, and the top end of an assembly frame is connected with a gravity pressure carrier. The drilling process device is characterized in that a hole sweeping drill bit (a hole sweeping wheel) at the bottom end of a static exploration working assembly is used for sweeping a hole and drilling, slag soil in the drilling hole is washed by slurry and sent out from a slag suction pipe to be drilled, static exploration equipment reaches the penetration test depth, a piston rod of a static exploration penetration hydraulic oil cylinder is operated by an operating valve and is pushed out downwards, a probe at the top end of the piston rod is used for acquiring data in a soil layer tested by a human press, the data acquisition stroke is 1 meter, the data is acquired, the piston rod of the oil cylinder retracts, the probe is pulled out of the soil layer completed in the test, the hole sweeping drill bit (the hole sweeping wheel) drills to the next test soil layer again, and the static exploration penetration acquisition test data is performed again and repeatedly, so that the penetration test depth is reached. The drilling area of the flushing hole-sweeping drill bit (hole-sweeping wheel) is slightly larger than the peripheral area of the static penetration assembly.
The power of the sand pump adopts the power of a motor or an internal combustion engine and is arranged on a deck of a construction ship, the sand pump has the function of positive and negative circulation of slurry, the positive circulation can wash sand in a drill hole out of the drill hole, and when the sand pump meets a sand layer with thicker particles and the positive circulation cannot wash sand out of the drill hole, the reverse circulation function is started to suck the sand out of the drill hole. The positive and negative circulation of the sand pump is utilized, the slurry in the drill hole can be recycled, and the sufficient slurry is ensured, so that the drilling safety is ensured in normal operation.
The utility model discloses still provide deep water static sounding deep hole injection device's application method, the step is as follows:
step 1, positioning a construction ship;
the construction ship reaches a position needing static exploration, is anchored by throwing according to requirements, and is accurately positioned by a positioning system;
step 2, performing static probe penetration operation;
after the construction ship is accurately positioned and fixed, the penetration device is hung into the underwater soil layer to be tested through a hydraulic winch or a crane through a steel wire rope 12 or a steel pipe;
step 2.1, penetrating the probe 4 into a soil layer to be tested through the telescopic device 5;
2.2, after the penetration is finished, withdrawing the probe 4 from the tested soil layer to be tested, then, drilling the soil layer to be tested to the next depth in a mode of sweeping the hole through the hole sweeping device 3 and pumping out slurry penetrating the lower part of the assembly frame 2 through the liquid flushing and sucking pipe 7;
repeating the step 2.1 and the step 2.2 until the test of the soil layer to be tested at all depths is completed;
and 3, after the test of the soil layers to be tested at all depths is completed, hoisting the penetration device out of the water surface through a hydraulic winch or a crane.
In practical applications, the following specific flow lines are usually followed:
1. positioning of construction ship
And (4) when the construction ship reaches the approximate hole position of the static exploration, anchoring and fixing the construction ship according to requirements, and accurately positioning by using a positioning system.
2. Penetration operation of static probe
After the construction ship is accurately positioned and fixed, the static exploration penetration equipment assembly is directly hoisted into a sea (river) bed surface through a steel wire rope 12 or a steel pipe by a hydraulic winch or a crane, a static exploration penetration oil cylinder control valve is controlled, a probe is pressed by 1 meter of a soil layer to complete 1 meter penetration, the probe is about to exit from the tested soil layer, then a hydraulic drive motor control valve and a sand slurry pump of a hole sweeping drill bit (a hole sweeping wheel) are opened, hole sweeping drilling is carried out until the next soil layer to be tested, the static exploration penetration control valve is opened again to test the probe penetration soil layer, and after the test is completed, the probe is retracted out of the tested soil layer. And repeating the steps of testing, drilling, retesting and re-drilling.
3. The hydraulic driving motor of the hole sweeping drill bit (hole sweeping wheel) and the static detection hydraulic oil cylinder are supplied with oil separately, namely, two groups of separate hydraulic power sources are provided, and an electromagnetic reversing valve can be arranged in the static detection injection assembly frame to control the hydraulic driving motor of the hole sweeping drill bit (hole sweeping wheel) and the static detection hydraulic oil cylinder to work, so that normal drilling and injection are ensured.
4. And measuring the depth of the injection equipment assembly in the injection process by adopting a steel wire measuring rope. The probe penetration ruler adopts the rising or lowering of the oil level of a hydraulic oil tank of a static detection hydraulic power source to measure the probe penetration ruler, and can also adopt the arrangement of a displacement sensor in a frame of a static detection penetration assembly.
5. After the static probing test is finished
And after the static exploration injection test is finished to the designed depth, the hydraulic hoisting winch directly lifts the static exploration injection equipment assembly out of the sea surface from the hole bottom.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The deep-water static sounding deep-hole penetration device comprises a penetration assembly frame (2); the method is characterized in that: the lower end of the penetration assembly frame (2) is provided with a probe (4); two sides of the probe (4) are provided with hole sweeping devices (3);
a telescopic device (5) is arranged in the penetration assembly frame (2); the telescopic device (5) drives the probe (4) to reciprocate along the vertical direction, and controls the probe (4) to extend out or retract into the lower end of the penetrating assembly frame (2);
a hole sweeping driving device (6) is arranged in the penetration assembly frame (2); the hole sweeping driving device (6) drives the hole sweeping device (3) to operate.
2. Deep-water static penetration depth device according to claim 1, wherein the lower end of the penetration assembly frame (2) is provided with four said hole-sweeping devices (3); the four hole sweeping devices (3) are uniformly distributed around the probe (4).
3. Deep-water static penetration depth device according to claim 1, wherein said sweeping device (3) is a sweeping drill bit or a sweeping wheel;
the hole sweeping driving device (6) is a hydraulic motor, a pneumatic motor or an electric motor.
4. Deep-water static penetration depth device according to claim 1, wherein the telescopic means (5) are fixed to the inner wall of the penetration assembly frame (2) by means of fixing brackets (8).
5. Deep-water static penetration depth device according to claim 1, wherein said telescopic means (5) are hydraulic or pneumatic cylinders;
the hydraulic cylinder or a piston rod of the pneumatic cylinder is connected with the probe (4) through a probe rod (9) to drive the probe (4) to reciprocate.
6. The deep-water static sounding deep-hole penetration device according to claim 1, wherein a liquid-flushing and sucking pipe (7) is arranged in the penetration assembly frame (2);
the lower end of the flushing and liquid sucking pipe (7) extends from the lower end of the penetrating combined body frame (2), and the side surface of the probe (4) extends out and is used for pumping slurry below the penetrating combined body frame (2) or spraying flushing liquid below the penetrating combined body frame (2).
7. The deep-water static penetration depth device according to claim 6, wherein the part of the flushing liquid suction pipe (7) close to the lower end is connected with a positive and negative gas lift circulating air pipe (10);
the positive and negative gas lift circulating gas pipe (10) comprises a gas ejection pipe and a one-way valve (11);
the part of the flushing and sucking liquid pipe (7) close to the lower end is sequentially connected with the one-way valve (11) and the gas ejection pipe to form one-way conduction from the gas ejection pipe to the flushing and sucking liquid pipe (7).
8. Deep-water static penetration depth device according to claim 1, wherein the upper end of the penetration assembly frame (2) is provided with a gravity ballast body (1).
9. The deep-water static sounding deep-hole penetration device according to claim 8, wherein the upper end of the gravity ballast body (1) is connected with a hoisting device on a surface construction ship through more than 2 steel wire ropes (12), and the water penetration depth of the gravity ballast body (1) and the penetration assembly frame (2) is controlled by the hoisting device;
each steel wire rope (12) is provided with a tension sensor;
when the tension carried by any one steel wire rope (12) is different from the tension carried by the rest steel wire ropes (12) and exceeds a critical value, the hoisting equipment can adjust the water inlet length of the steel wire rope (12) in time.
10. The deep-water static sounding deep-hole penetration device according to claim 8, wherein the upper end of the gravity ballast body (1) is connected with a hoisting device on a surface construction ship through a steel pipe, and the hoisting device controls the water penetration depth of the gravity ballast body (1) and the penetration assembly frame (2).
CN202120290585.0U 2021-02-02 2021-02-02 Deep-water static sounding deep hole penetration device Active CN214460268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120290585.0U CN214460268U (en) 2021-02-02 2021-02-02 Deep-water static sounding deep hole penetration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120290585.0U CN214460268U (en) 2021-02-02 2021-02-02 Deep-water static sounding deep hole penetration device

Publications (1)

Publication Number Publication Date
CN214460268U true CN214460268U (en) 2021-10-22

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Application Number Title Priority Date Filing Date
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Country Status (1)

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CN (1) CN214460268U (en)

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