CN112816246A - Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum - Google Patents
Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum Download PDFInfo
- Publication number
- CN112816246A CN112816246A CN201911123837.4A CN201911123837A CN112816246A CN 112816246 A CN112816246 A CN 112816246A CN 201911123837 A CN201911123837 A CN 201911123837A CN 112816246 A CN112816246 A CN 112816246A
- Authority
- CN
- China
- Prior art keywords
- sampling
- uniform
- drilling
- speed
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Earth Drilling (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the field of non-interference uniform-speed cable drilling sampling of sediment stratums, in particular to a non-interference uniform-speed cable drilling sampling device and a non-interference uniform-speed cable drilling sampling method for the sediment stratums, wherein the non-interference uniform-speed cable drilling sampling device comprises an outer cylinder (11), a fishing spearhead (12), a pull rod (13), a locking device (14), a drill bit (21) and a bottom seal (23); the fishing device is characterized in that an outer barrel connecting buckle (10) is arranged at the upper end of the outer barrel (11), a drill bit (21) is connected to the lower end of the outer barrel (11), a fishing spearhead (12) is connected to the top end of the pull rod (13), the fishing spearhead (12) and the pull rod (13) are sleeved in the outer barrel (11), a locking device (14) is sleeved between the pull rod (13) and the outer barrel (11), and a bottom seal (23) is arranged at the lower end of the pull rod (13). The invention adopts a rope mode to perform sampling by pressing down the sampling tool which is put in the drill rod at a constant speed, and after the sampling is finished, the rope fishing tool is taken out of the shaft to finish the sampling.
Description
Technical Field
The invention relates to the field of non-interference uniform-speed cable drilling sampling of sediment stratums, in particular to a non-interference uniform-speed cable drilling sampling device and a non-interference uniform-speed cable drilling sampling method for the sediment stratums.
Background
Although the marine sediment stratum is not yet diagenetic, abundant resources such as natural gas hydrate, seabed manganese nodule, seabed metal soft mud and the like exist in the marine sediment stratum. Furthermore, the physical properties of the seabed sediment are also under deep investigation before the seabed structures are built, so that the seabed sediment needs to be sampled as necessary to maintain the in-situ properties as much as possible. However, in the existing deep sea drilling sampling method, a drilling ship is generally used as a carrier, a rotary sampling mode is adopted, and the rock sample obtained in the way is damaged in a plurality of characteristics of the sample due to the floating of a ship body and the rotation of a tool, so that the drilling sampling method which takes the drilling ship as the carrier, can carry out rapid extraction and has little interference on a sediment stratum is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a non-interference uniform-speed cable drilling sampling device for a sediment stratum.
The technical scheme is as follows:
an interference-free uniform-speed rope drilling sampling device for a sediment stratum comprises a drilling ship, a derrick, a rope winch, a pressure control constant-current system, a drill rod, an interference-free uniform-speed rope drilling sampling tool, a drill bit and the like. The non-interference uniform speed rope drilling sampling tool comprises an outer barrel, a fishing spearhead, a pull rod, a locking device, a sealing joint, an outer seal, an inner seal, a drainage joint, a sampling pipe, a liner pipe, a drill bit, a drill shoe, a bottom seal and a sealing plug.
The drilling ship is provided with a derrick, a rope winch and a pressure control constant-current system, the outer barrel is connected with the drill rod through the outer barrel connecting buckle, the lower part of the outer barrel is connected with the drill bit, the drill rod is firstly rotated to drive the drill bit to drill to a sediment stratum sampling layer position, and sampling is started. The non-interference uniform-speed rope drilling sampling tool is placed into an outer barrel from the interior of a drill rod by a rope of a rope winch to lift a shoulder, a pressure-control constant-current system is started, and the drilling fluid drives the non-interference uniform-speed rope drilling sampling tool to press down for sampling at a constant flow. The sampling tool is unlocked by the locking device firstly under the action of the pressure of the drilling fluid, the outer seal and the inner seal enable the tool to form a piston in the outer cylinder, the piston is pressed down at a constant speed along the pull rod, liquid in the upper cavity of the bottom seal is discharged from the drain hole simultaneously, the sampling pipe and the liner pipe extend out of the central hole of the drill bit at a constant speed under the action of the piston until the limit of the sealing plug, and sampling is completed. Then a rope winch on the drilling ship controls the rope to go down, a fishing spearhead of the interference-free uniform-speed rope drilling sampling tool is grabbed, the tool is lifted up, and the sampling pipe and the sample wrapped by the liner pipe form low pressure on the upper part of the sample due to the fact that the sealing plug moves upwards, so that the sample is sucked to prevent the sample from falling out of the sampling pipe. And finally, the non-interference uniform-speed cable drilling sampling tool is lifted out of the wellhead to finish sampling operation.
The invention has the beneficial effects that:
the drilling ship is used as a carrier, the pressure control constant flow system provides drilling fluid with constant flow, the rope type sampling tool which is put in through the drill rod is driven to be pressed down at constant speed for sampling, and after sampling is finished, the rope fishing tool is taken out of a shaft to finish sampling, so that rapid extraction can be carried out, and the interference to sediment strata is very small.
Drawings
FIG. 1 is a schematic view of a cable drilling sampling device for a sediment stratum without disturbance
1. Drilling ship 2, derrick 3, rope winch 4, pressure control constant flow system 5, rope 6, drill rod 7, interference-free uniform speed rope drilling sampling tool 8, sediment stratum 9, seawater
FIG. 2 is a schematic view of a non-interfering uniform velocity wireline drilling sampling tool
10. The outer barrel connecting buckle 11, the outer barrel 12, the fishing spear 13, the pull rod 14, the locking device 15, the sealing joint 16, the outer seal 17, the inner seal 18, the drainage joint 19, the sampling pipe 20, the liner pipe 21, the drill bit 22, the drill shoe 23, the bottom seal 24, the sealing plug 101 and the drainage hole.
Detailed Description
Referring to fig. 1 and 2, the non-interference uniform-speed cable drilling sampling device for the sediment stratum comprises a drilling ship (1), a derrick (2), a cable winch (3), a pressure control constant-current system (4), a cable (5), a drill rod (6), a non-interference uniform-speed cable drilling sampling tool (7), the sediment stratum (8) and seawater (9), wherein the non-interference uniform-speed cable drilling sampling tool (7) comprises an outer cylinder connecting buckle (10), an outer cylinder (11), a fishing spear head (12), a pull rod (13), a locking device (14), a sealing joint (15), an outer seal (16), an inner seal (17), a drainage joint (18), a sampling pipe (19), a liner pipe (20), a drill bit (21), drill shoes (22), a bottom seal (23), a sealing plug (24) and a drainage hole (101).
The drilling ship 1 is provided with a derrick 2, a rope winch 3 and a pressure-control constant-current system 4, an outer cylinder 11 is connected with a drill rod 6 through an outer cylinder connecting buckle 10, the lower part of the outer cylinder is connected with a drill bit 22, the drill rod 6 is firstly rotated to drive the drill bit 22 to drill to a sampling layer of a sediment stratum 8, and sampling is started. The non-interference uniform-speed rope drilling sampling tool 7 is placed into the outer barrel 11 from the interior of the drill rod 6 by the rope 5 of the rope winch 3 to lift the shoulder, the pressure control constant-flow system 4 is started, and the drilling fluid drives the non-interference uniform-speed rope drilling sampling tool 7 to press down for sampling at a constant flow. Under the action of the pressure of the drilling fluid, the sampling tool is unlocked by the locking device 14, the outer seal 16 and the inner seal 17 enable the tool to form a piston in the outer cylinder 11, the piston is pressed down at a constant speed along the pull rod 13, liquid in a cavity at the upper part of the bottom seal 23 is discharged from the drain hole 101 at the same time, the sampling pipe 19 and the liner pipe 20 extend out of a central hole of the drill bit 22 at a constant speed under the action of the piston until the limit of the sealing plug 24 is reached, and. Then the rope winch 3 on the drilling ship 1 controls the rope 5 to go down, the fishing spear 12 of the interference-free uniform speed rope drilling sampling tool 7 is grabbed, the tool is lifted up, the sample wrapped by the sampling tube 19 and the liner tube 20 is moved upwards by the sealing plug 24, low pressure is formed on the upper part of the sample, and the sample is sucked to prevent the sample from falling out of the sampling tube 19. And finally, the non-interference uniform-speed cable drilling sampling tool 7 is lifted out of the wellhead to finish sampling operation.
Claims (9)
1. A cable drilling sampling device for a sediment stratum without interference at a uniform speed is characterized by comprising an outer cylinder (11), a fishing spearhead (12), a pull rod (13), a locking device (14), a drill bit (21) and a bottom seal (23); the fishing device is characterized in that an outer barrel connecting buckle (10) is arranged at the upper end of the outer barrel (11), a drill bit (21) is connected to the lower end of the outer barrel (11), a fishing spearhead (12) is connected to the top end of the pull rod (13), the fishing spearhead (12) and the pull rod (13) are sleeved in the outer barrel (11), a locking device (14) is sleeved between the pull rod (13) and the outer barrel (11), and a bottom seal (23) is arranged at the lower end of the pull rod (13).
2. The non-interfering uniform-speed wireline drilling sampling device for sedimentary formations according to claim 1, further comprising a sampling tube (19) and a liner tube (20) sleeved between the pull rod (13) and the outer cylinder (11).
3. The non-interfering uniform-speed cable drilling sampling device for the sediment formation as claimed in claim 2, wherein the top ends of the sampling tube (19) and the liner tube (20) are provided with a drainage joint (18), and the side wall of the drainage joint (18) is provided with a drainage hole (101).
4. A cable drill sampling device according to claim 3, characterized in that a sealing joint (15) is connected between the locking device (14) and the drainage joint (18).
5. The non-interfering uniform-speed cable drilling sampling device for the sediment formation as claimed in claim 4, wherein an outer seal (16) is sleeved between the sealing joint (15) and the outer cylinder (11), and an inner seal (17) is sleeved between the sealing joint (15) and the drainage joint (18).
6. The disturbance-free uniform-speed cable drilling sampling device for the sedimentary formations according to claim 5, wherein a sealing plug (24) is provided between the drill bit (21) and the pull rod (13).
7. The non-interfering uniform-speed cable drilling sampling device for the sediment formation as claimed in claim 6, further comprising a drilling ship (1) and a drill rod (6), wherein the drilling ship (1) is provided with a derrick (2), a cable winch (3) and a pressure-control constant-current system (4), and the cable winch is connected with the outer cylinder connecting buckle (10) through the drill rod (6).
8. An interference-free uniform-speed wireline drilling sampling method for a sedimentary earth formation based on any one of claims 1 to 7, wherein the interference-free uniform-speed wireline drilling sampling tool for a sedimentary earth formation comprises the steps of: the non-interference uniform-speed rope drilling sampling tool (7) is placed into an outer cylinder (11) from the inside of a drill rod (6) through a rope (5) of a rope winch (3) to lift a shoulder, a pressure-control constant-flow system (4) is started, drilling fluid drives the non-interference uniform-speed rope drilling sampling tool (7) to press down at a constant flow rate for sampling, the sampling tool is unlocked by a locking device (14) under the action of the pressure of the drilling fluid, a piston is formed in the outer cylinder (11) by an outer seal (16) and an inner seal (17) and pressed down at a constant speed along a pull rod (13), liquid in an upper cavity of a bottom seal (23) is discharged from a water discharge hole (101) at the same time, a sampling pipe (19) and a liner pipe (20) extend out of a central hole of a drill bit (22) at a constant speed under the action.
9. The method for the undisturbed uniform velocity cable drilling sampling in the sedimentary earth formation according to the claim 8, wherein the cable winch (3) on the drilling vessel (1) controls the cable (5) to go down, the fishing spearhead (12) of the undisturbed uniform velocity cable drilling sampling tool (7) is grabbed, the tool is lifted, the sample wrapped by the sampling tube (19) and the liner tube (20) moves upwards due to the sealing plug (24), low pressure is formed on the upper part of the sample, and the sample is sucked to prevent the sample from falling out of the sampling tube (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911123837.4A CN112816246A (en) | 2019-11-17 | 2019-11-17 | Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911123837.4A CN112816246A (en) | 2019-11-17 | 2019-11-17 | Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112816246A true CN112816246A (en) | 2021-05-18 |
Family
ID=75852124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911123837.4A Pending CN112816246A (en) | 2019-11-17 | 2019-11-17 | Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112816246A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086951A (en) * | 2021-11-13 | 2022-02-25 | 湖北德势弘地质技术服务有限公司 | Mineral geological exploration equipment |
| CN116818410A (en) * | 2023-07-12 | 2023-09-29 | 浙江华东岩土勘察设计研究院有限公司 | Water area rope salvaging type geological sample sampling device and working method |
-
2019
- 2019-11-17 CN CN201911123837.4A patent/CN112816246A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086951A (en) * | 2021-11-13 | 2022-02-25 | 湖北德势弘地质技术服务有限公司 | Mineral geological exploration equipment |
| CN116818410A (en) * | 2023-07-12 | 2023-09-29 | 浙江华东岩土勘察设计研究院有限公司 | Water area rope salvaging type geological sample sampling device and working method |
| CN116818410B (en) * | 2023-07-12 | 2023-12-08 | 浙江华东岩土勘察设计研究院有限公司 | Water area rope salvaging type geological sample sampling device and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020034643A1 (en) | Drilling process of pressure-preserving cable core drilling machine for subsea natural gas hydrates | |
| US2906500A (en) | Completion of wells under water | |
| US7861779B2 (en) | Method and device for establishing an underground well | |
| US6394192B1 (en) | Methods for seabed piston coring | |
| EP3690182B1 (en) | Sediment core-boring drilling process suitable for submarine rope core-boring drill | |
| US4134461A (en) | Marine structure and method of drilling a hole by means of said structure | |
| CN108798608B (en) | Natural gas hydrate exploitation system and method | |
| US10927606B2 (en) | Sediment core-drilling process for submarine wire-line coring drill rig | |
| CN205713966U (en) | A kind of combined type ocean gas hydrate seismic exploration drilling tool | |
| JP7299643B2 (en) | Offshore natural gas hydrate tubular mining equipment and method | |
| CN102296950B (en) | Hydraulic shearing type sampling drilling tool | |
| CN104080999B (en) | The method that pressure break is carried out while drilling well | |
| KR101691967B1 (en) | Apparatus for sampling core | |
| CN112816246A (en) | Non-interference uniform-speed cable drilling sampling device and sampling method for sediment stratum | |
| US3840079A (en) | Horizontal drill rig for deep drilling to remote areas and method | |
| JP2023500002A (en) | Penetrative Mining Apparatus and Mining Method for Offshore Natural Gas Hydrate | |
| US3252528A (en) | Method of drilling from a fully floating platform | |
| CN111608592A (en) | Novel seabed continuous pipe drilling machine and drilling method | |
| US3602320A (en) | Deep sea pile setting and coring vessel | |
| CN212458928U (en) | Non-interference uniform-speed cable drilling sampling device for sediment stratum | |
| EP2964873B1 (en) | Wireline assisted coiled tubing portion and method for operation of such a coiled tubing portion | |
| EP3087246B1 (en) | Method for running conduit in extended reach wellbores | |
| US11346170B2 (en) | Method and apparatus of intelligent downhole multi-function inflatable system for oil and gas wells | |
| CN110725664A (en) | Slurry stopping mechanism for well sealing and well sealing method thereof | |
| CN111677471B (en) | Double-drill-rod rope coring method, system and controller thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |