CN112814600A - Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool - Google Patents
Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool Download PDFInfo
- Publication number
- CN112814600A CN112814600A CN202110269270.2A CN202110269270A CN112814600A CN 112814600 A CN112814600 A CN 112814600A CN 202110269270 A CN202110269270 A CN 202110269270A CN 112814600 A CN112814600 A CN 112814600A
- Authority
- CN
- China
- Prior art keywords
- clamping
- clamping groove
- joint
- inner pipe
- sliding sleeve
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being specially adapted for operation under water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
Abstract
The invention discloses a bayonet type quick dismounting inner pipe assembly suitable for a submarine drilling rig rope core drill, which comprises an elastic clamping component, a single-action component, a bayonet type dismounting device and an inner pipe, wherein the elastic clamping component is connected with the single-action component; the single-acting component is connected with the clamping groove joint through the inner pipe joint; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring hole is communicated and coaxial with the spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is provided with a pin hole, a cylindrical pin is arranged in the pin hole, and the clamping groove joint and the clamping rod joint are hung on the clamping groove through the clamping rod and connected. The invention has simple structure and quick operation, and can meet the requirement of automatic and quick assembly and disassembly of the inner pipe assembly on the seabed.
Description
Technical Field
The invention relates to a bayonet type quick-dismounting inner pipe assembly suitable for a submarine drilling rig rope core drilling tool.
Background
As the mineral resources on land are gradually depleted, the ocean resources become potential alternative energy sources for the future socioeconomic development due to the huge reserves. Therefore, recent research around the development and utilization of marine mineral resources has become a hot direction. The method for directly obtaining the rock core from the deep part of the seabed by the drilling technology is a direct method for evaluating the mineral reserve and evaluating the geological conditions of seabed engineering. At present, the seabed core drilling operation mainly has two forms, which are large drilling ship sampling and seabed drilling machine sampling respectively. Compared with a large drilling ship, the submarine drilling rig has the characteristics of high operating efficiency, strong concealment, low requirement on mother ship configuration and the like, and has wide application prospect in the field of marine geological exploration.
The currently common rope core drill inner pipe assembly suitable for the seabed drilling machine mainly comprises an elastic clamping component, a single-action component and an inner pipe. All internal pipe assemblies required for drilling before normal operation need to be placed in the drill rig tray of the drilling rig and lowered to the seafloor with the seafloor drilling rig. Typically drilling to a depth of 220 meters requires 75 inner tube assemblies to be carried at once. Because the elastic clamping component, the single-action component and the inner pipe in the inner pipe assembly are all in threaded connection, the submarine drilling machine is not convenient to rapidly disassemble and assemble the inner pipe assembly on the seabed. After each drilling is finished, the maintenance of the elastic clamping components and the single-action components in all the inner pipe assemblies carried at sea is required, and the auxiliary operation time is obviously increased compared with the land drilling workload. In addition, subsea rigs are limited by the lifting capacity of the retrieval winch, which imposes strict limitations on the overall weight of the rig. The number of inner tube assemblies that can be carried is directly related to the weight of a single inner tube assembly. That is, the total number of the inner pipe assemblies which can be carried by a single inner pipe assembly is reduced if the inner pipe assembly is too heavy, so that the effective coring capability of the submarine drilling rig is directly influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the rope core drill inner pipe assembly which is simple in structure, quick to operate and capable of being quickly disassembled and assembled.
The technical scheme adopted by the invention is as follows: the utility model provides a swift dismouting inner tube assembly of bayonet type suitable for seafloor drilling rig rope coring drilling tool, includes bullet card subassembly, single action subassembly, bayonet type dismouting device and inner tube, bullet card subassembly and single action subassembly be connected characterized by: the bayonet type dismounting device comprises a clamping groove joint, a compression spring, a spring guide seat, a sliding sleeve and a clamping rod joint; the single-acting component is connected with the clamping groove joint through the inner pipe joint; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring hole is communicated and coaxial with the spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the clamping groove joint; the spring guide seat is supported on the cylindrical pin; the bottom of the clamping groove joint is provided with a plurality of clamping grooves, and the bottom of the sliding sleeve is provided with a sliding sleeve clamping groove; the number of the sliding sleeve clamping grooves is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves; the top of the clamping rod joint is provided with a plurality of clamping rods, and the axes of the clamping rods are vertical to the axis of the inner pipe; the clamping rods are the same in number as the clamping grooves and are arranged corresponding to the clamping grooves, and the sliding sleeve clamping grooves and the clamping grooves can hold the clamping rods tightly; the clamping rod joint is connected with the inner pipe.
In the quickly disassembled and assembled inner pipe assembly suitable for the rope core drill of the submarine drilling rig, each clamping groove is provided with a clamping groove guide groove, the clamping groove guide groove is communicated with one end of each clamping groove, and the two side walls of each clamping groove guide groove are respectively provided with a left guide slope and a right guide slope; an included angle is formed between the left guide slope and the axis of the clamping groove joint, and an included angle is formed between the right guide slope and the axis of the clamping groove joint, and a sharp point I is formed on the bottom surface of the clamping groove joint by the two adjacent guide grooves.
In the quickly disassembled and assembled inner pipe assembly suitable for the submarine drilling rig rope core drill, one side wall of the sliding sleeve clamping groove is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower clamping rod of the other side wall is guided to the slope; the lower part of the clamping rod guide slope is an inclined plane, the upper part of the clamping rod guide slope is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surfaces of the sliding sleeves.
In the quickly disassembled and assembled inner pipe assembly suitable for the submarine drilling rig rope core drilling tool, the sharp point I on the bottom surface of the clamping groove joint is higher than the sharp point II on the bottom surface of the sliding sleeve, the sharp point I and the corresponding sharp point II are staggered in the circumferential position, and the clamping rod holes are formed by the clamping grooves and the corresponding sliding sleeve clamping grooves.
Compared with the prior art, the invention has the beneficial effects that:
1) the upper end and the lower end of the inner pipe assembly are connected by a clamping groove and a clamping roller in a matched connection mode to replace the conventional threaded connection mode, so that the submarine drilling rig can quickly disassemble and assemble the inner pipe assembly under the matching of a mechanical arm and a rotating chuck. Through the mode that one set of inner tube assembly upper end and several inner tubes matched with, reduced the quantity of carrying of inner tube assembly upper end by a wide margin, be favorable to further increasing the quantity of carrying of inner tube under the certain prerequisite of rig gross mass, improve submarine drilling rig's effective coring ability.
2) The device has the characteristic of blind installation, and is suitable for remote automatic operation of the submarine drilling rig.
3) Compared with the inner pipe assembly of the conventional submarine drilling rig wire line core drilling tool, the submarine drilling rig wire line core drilling tool can be combined and matched with the inner pipes only by one set of upper end assembly of the inner pipe assembly consisting of the elastic clamping assembly and the single-action assembly, so that the auxiliary working time and labor intensity for maintaining the inner pipe assembly after drilling are greatly reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of an inner tube assembly of the present invention.
Fig. 2 is a cross-sectional view of the bayonet type attaching and detaching device of the present invention.
Fig. 3 is an exploded view of the bayonet type attaching and detaching device of the present invention.
Fig. 4 is a schematic view of a slot connector structure according to the present invention.
FIG. 5 is a schematic view of the sliding sleeve structure of the present invention.
FIG. 6 is a schematic view of a structure of the present invention.
Fig. 7 is a schematic view of the general structure of the inner tube assembly of the present invention.
FIG. 8 is a schematic view of the special case of the inner tube assembly of the present invention.
Fig. 9 is a schematic view of the inner tube dismounting structure of the present invention.
In the figure: 1-a snap assembly; 2-single-acting component; 3-a card slot joint; 4-compression spring; 5-a spring guide seat; 6-cylindrical pin; 7-a sliding sleeve; 8-a clamping rod joint; 9-inner tube; 021-inner tube fitting; 031-a spring chamber; 032-card slot; 033-left guide ramp; 034-right guide ramp; 071-sliding sleeve guide slope; 072-sliding sleeve neck; 081-kajiu.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the present invention comprises a snap assembly 1, a single action assembly 2, a bayonet type attaching and detaching device, and an inner tube 9. The elastic card component 1 is connected with the upper end of the single-action component 2.
The bayonet type dismounting device comprises a bayonet joint 3, a compression spring 4, a spring guide seat 5, a cylindrical pin 6, a sliding sleeve 7 and a clamping rod joint 8; the lower end of the single acting component 2 is connected with the clamping groove joint 3 through an inner pipe joint 021; the clamping groove joint 3 and the inner pipe joint 021 are respectively provided with a spring hole 031 and a spring blind hole, and the spring 031 is communicated with the spring blind hole and is coaxial; one end of the compression spring 4 is connected with the bottom of the spring blind hole, and the other end is connected with the spring guide seat 5. The clamping groove joint 3 is provided with a long straight hole, and the length direction of the long straight hole is along the axis direction of the inner pipe. The sliding sleeve 7 is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve 7, a cylindrical pin 6 is arranged in the pin hole, the axis of the cylindrical pin 6 is perpendicular to the central line of the inner pipe 9, the cylindrical pin 6 penetrates through a long straight hole in the clamping groove joint, and the spring aligning seat 5 is supported on the cylindrical pin 6.
The bottom of the clamping groove connector 3 is provided with four clamping grooves 032, the bottom of the sliding sleeve 7 is provided with four sliding sleeve clamping grooves 072, and the number of the sliding sleeve clamping grooves 072 is the same as that of the clamping grooves 032 and is arranged corresponding to the clamping grooves 032. Each clamping groove 032 is provided with a clamping groove guide groove, the clamping groove guide groove is communicated with one end of the clamping groove 032, and two side walls of the clamping groove guide groove are respectively provided with a left guide slope 033 and a right guide slope 034; the left guide slope 033 and the right guide slope 034 form an included angle with the axis of the card slot connector 3. Two adjacent guide grooves form a sharp point I on the bottom surface of the clamping groove joint. One side wall of the sliding sleeve clamping groove 072 is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower clamping rod of the other side wall is guided to the slope 071; the lower part of the clamping rod guiding slope 071 is an inclined plane, the upper part is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surface of the sliding sleeve. The sharp point I on the bottom surface of the clamping groove joint 3 is higher than the sharp point II on the bottom surface of the sliding sleeve 7, the sharp point I and the corresponding sharp point II are staggered in the circumferential position, and the clamping groove 032 and the corresponding sliding sleeve clamping groove 072 form a clamping rod hole. The top of the clamping rod joint 8 is provided with a plurality of clamping rods 081, and the axes of the clamping rods 081 are vertical to the axis of the inner pipe 9; the quantity of the clamping rods 081 is the same as the quantity of the clamping grooves 032 and is arranged corresponding to the clamping grooves, and the sliding sleeve clamping grooves 072 and the corresponding clamping grooves 032 form clamping rod holes which can hold the corresponding clamping rods 081 tightly. The clamping rod joint 8 is connected with an inner pipe 9. The compression spring 4 extrudes the cylindrical pin 6 through the spring guide seat 5, so that the sliding sleeve 7 connected with the cylindrical pin can tightly close the clamping groove 032 of the clamping groove joint 3.
The specific application method of the invention is as follows:
an inner pipe assembly installation step: in a normal installation situation, as shown in fig. 7, the main manipulator of the subsea drilling rig takes out the lower end of the inner pipe assembly formed by the threaded connection of the inner pipe 9 and the clamping rod joint 8 from the drilling tool warehouse, and displaces the lower end of the inner pipe assembly above the rotary chuck of the subsea drilling rig, so that the lower end of the inner pipe assembly, the rotary chuck and the upper end of the inner pipe assembly hooked by the fishing mechanism pulled by the steel wire rope are positioned on the same axis, and the rotary chuck moves upwards to clamp the inner pipe 9, so that the main manipulator is. Then, the steel wire rope pulls the fishing mechanism to enable the upper end of the inner pipe assembly to move axially downwards until the right guide slope 034 of the clamping groove joint 3 or the sliding sleeve guide slope 071 contacts the clamping rod 081 of the clamping rod joint 8, and the inner pipe assembly continues to move downwards, and the clamping rod 081 can rotate due to the connection of the clamping groove joint 3 and the single-action component 2, so that the clamping rod 081 moves to the position where the clamping groove 032 is communicated with the guide groove along the right guide slope 034 or the sliding sleeve guide slope 071; continuing to move the upper end of the inner pipe main layer downwards to enable the clamping rods 081 to lift the sliding sleeve 7 under the pressure of the compression spring 4, then clamping the single-acting component 2 through the auxiliary manipulator of the submarine drilling machine to control the single-acting component to rotate circumferentially, rotating the clamping rod joint 8 by a certain angle through the rotary chuck of the submarine drilling machine to be transferred into the clamping grooves 032 to be far away from the end of the guide groove, and enabling the sliding sleeve 7 to lose the radial pressure applied by the clamping rods 081 and slide downwards under the reset action of the compression spring 4 to enable the clamping grooves 032 to be tightly closed; the sliding sleeve clamping groove 072 and the clamping groove 032 form a clamping rod hole to limit the circumferential rotation of the clamping rod 081, so that the inner pipe 9 and the single-action component 2 synchronously rotate and the installation is finished.
In case of special conditions, as shown in fig. 8, when the tip of the bottom of the sliding sleeve 7 just pushes against the clamping rod 081, the axial movement of the upper end of the inner pipe assembly is continuously kept, so that the clamping rod 081 pushes the sliding sleeve 7 upwards, the clamping rod 081 contacts the left guide slope 033 of the clamping groove joint 3 and moves to the position where the clamping groove 032 is communicated with the guide groove along the left guide slope 033, and the later process is consistent with the installation process, and the installation is finished.
Inner pipe assembly disassembly: as shown in fig. 9, after the inner pipe assembly is fished out, the mechanical arm of the subsea drilling machine displaces the inner pipe assembly above the rotary chuck of the subsea drilling machine, and the rotary chuck moves upwards to clamp the inner pipe 9, and the main mechanical arm is removed; then utilize the vice manipulator of subsea drilling machine to clip sliding sleeve 7 of bayonet type dismouting device and upwards go up, make sliding sleeve draw-in groove 072 of sliding sleeve 7 remove the rotation restriction to card rod 081, then drive the rotatory certain angle of card rod joint 8 through subsea drilling machine rotating chuck and roll out draw-in groove 032, draw-in groove joint 3 and card rod joint 8 part, dismantle and accomplish.
Claims (4)
1. The utility model provides a swift dismouting inner tube assembly of bayonet type suitable for seafloor drilling rig rope coring drilling tool, includes bullet card subassembly, single action subassembly, bayonet type dismouting device and inner tube, bullet card subassembly and single action subassembly be connected characterized by: the bayonet type dismounting device comprises a clamping groove joint, a compression spring, a spring guide seat, a sliding sleeve and a clamping rod joint; the single-acting component is connected with the clamping groove joint through the inner pipe joint; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring hole is communicated and coaxial with the spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the clamping groove joint; the spring guide seat is supported on the cylindrical pin; the bottom of the clamping groove joint is provided with a plurality of clamping grooves, and the bottom of the sliding sleeve is provided with a sliding sleeve clamping groove; the number of the sliding sleeve clamping grooves is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves; the top of the clamping rod joint is provided with a plurality of clamping rods, and the axes of the clamping rods are vertical to the axis of the inner pipe; the clamping rods are the same in number as the clamping grooves and are arranged corresponding to the clamping grooves, and the sliding sleeve clamping grooves and the clamping grooves can hold the clamping rods tightly; the clamping rod joint is connected with the inner pipe.
2. The quick release inner tube assembly as defined in claim 1, further comprising: each clamping groove is provided with a clamping groove guide groove, the clamping groove guide groove is communicated with one end of each clamping groove, and two side walls of each clamping groove guide groove are respectively provided with a left guide slope and a right guide slope; an included angle is formed between the left guide slope and the axis of the clamping groove joint, and an included angle is formed between the right guide slope and the axis of the clamping groove joint, and a sharp point I is formed on the bottom surface of the clamping groove joint by the two adjacent guide grooves.
3. The quick release inner tube assembly as defined in claim 2, further comprising: one side wall of the sliding sleeve clamping groove is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower part of the other side wall is provided with a clamping rod guide slope; the lower part of the clamping rod guide slope is an inclined plane, the upper part of the clamping rod guide slope is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surfaces of the sliding sleeves.
4. The quick release inner tube assembly as defined in claim 3, wherein said inner tube assembly comprises: the sharp point I on the bottom surface of the clamping groove joint is higher than the sharp point II on the bottom surface of the sliding sleeve, the sharp point I and the corresponding sharp point II are staggered in the circumferential position, and the clamping groove and the corresponding sliding sleeve clamping groove form a clamping rod hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269270.2A CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269270.2A CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112814600A true CN112814600A (en) | 2021-05-18 |
| CN112814600B CN112814600B (en) | 2024-04-12 |
Family
ID=75863186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110269270.2A Active CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112814600B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ309453B6 (en) * | 2021-11-11 | 2023-01-25 | Area Four Industries Česko s.r.o. | Method of producing lattice structure elements and a lattice structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| US20060169493A1 (en) * | 2003-09-05 | 2006-08-03 | Yukio Kadomoto | Remote operation wire line core sampling device |
| RU2297513C1 (en) * | 2005-10-25 | 2007-04-20 | Закрытое акционерное общество Научно-производственное предприятие (ЗАО НПП "СибБурМаш") | Core sampling tool |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| CN110219612A (en) * | 2019-07-18 | 2019-09-10 | 长沙矿山研究院有限责任公司 | The drilling tool inner tube and operational method of seabed coring drilling with keep up pressure |
| US20190368294A1 (en) * | 2018-05-30 | 2019-12-05 | Guangzhou Marine Geological Survey | Natural gas hydrate pressure-retaining corer |
| CN110792405A (en) * | 2019-12-03 | 2020-02-14 | 湖南科技大学 | Fishing device for core inner pipe of submarine drilling rig rope core drilling tool |
| CN111236873A (en) * | 2020-03-24 | 2020-06-05 | 湖南科技大学 | Submarine natural gas hydrate fidelity rope core drill and operation method thereof |
| CN214464019U (en) * | 2021-03-12 | 2021-10-22 | 湖南科技大学 | Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool |
-
2021
- 2021-03-12 CN CN202110269270.2A patent/CN112814600B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| US20060169493A1 (en) * | 2003-09-05 | 2006-08-03 | Yukio Kadomoto | Remote operation wire line core sampling device |
| RU2297513C1 (en) * | 2005-10-25 | 2007-04-20 | Закрытое акционерное общество Научно-производственное предприятие (ЗАО НПП "СибБурМаш") | Core sampling tool |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| US20190368294A1 (en) * | 2018-05-30 | 2019-12-05 | Guangzhou Marine Geological Survey | Natural gas hydrate pressure-retaining corer |
| CN110219612A (en) * | 2019-07-18 | 2019-09-10 | 长沙矿山研究院有限责任公司 | The drilling tool inner tube and operational method of seabed coring drilling with keep up pressure |
| CN110792405A (en) * | 2019-12-03 | 2020-02-14 | 湖南科技大学 | Fishing device for core inner pipe of submarine drilling rig rope core drilling tool |
| CN111236873A (en) * | 2020-03-24 | 2020-06-05 | 湖南科技大学 | Submarine natural gas hydrate fidelity rope core drill and operation method thereof |
| CN214464019U (en) * | 2021-03-12 | 2021-10-22 | 湖南科技大学 | Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool |
Non-Patent Citations (1)
| Title |
|---|
| 彭奋飞 等: "针对海底钻机硬岩钻进的绳索取心钻具关键机构优化", 《地质与勘探》, vol. 56, no. 1, 31 January 2020 (2020-01-31) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ309453B6 (en) * | 2021-11-11 | 2023-01-25 | Area Four Industries Česko s.r.o. | Method of producing lattice structure elements and a lattice structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112814600B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112012685A (en) | Horizontal well in-situ monitoring fidelity continuous coring tool | |
| CN214464019U (en) | Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool | |
| CN112412374B (en) | Geological exploration system and construction method thereof | |
| CN105041250A (en) | Rope coring percussive drill tool | |
| CN108625807A (en) | A kind of engineering exploration cord coring drill suitable for seabed drilling machine | |
| CN115184073B (en) | Rock core sampling device for geotechnical engineering | |
| CN112814600A (en) | Bayonet type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool | |
| CN112431553A (en) | Horizontal drilling machine with impact device | |
| CN111136610B (en) | Hydraulic operation type sealing ring replacing tool | |
| CN104499979A (en) | Method and device for salvaging fishes of different diameters without replacing slips | |
| CN109030076B (en) | Pipe-removing device of natural gas hydrate sampling drilling tool | |
| CN112593882B (en) | Rope directional coring drilling device with composite function | |
| CN114166562A (en) | Triple-pipe single-dynamic-pressure compensation type rotary soil sampler and soil sampling method | |
| CN204402415U (en) | Do not change the device that slips salvages different-diameter fish | |
| CN214464020U (en) | Hook type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool | |
| CN111119776B (en) | Rope core drilling tool suitable for large-caliber horizontal engineering geological exploration | |
| CN2716492Y (en) | Core inner tube replacing and taking device of deep-sea shallow-hole core-taking drilling machine | |
| CN201184154Y (en) | Novel locking apparatus for fetching core with drill | |
| CN112814601B (en) | Hook type quick dismounting inner pipe assembly suitable for rope core drilling tool of submarine drilling machine | |
| CN217632346U (en) | Double-structure claw coring tool with jaw differential motion and adjustable gap | |
| CN214464018U (en) | Static pressure constant speed coring tool | |
| CN211623372U (en) | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration | |
| CN216665597U (en) | Triple-pipe single-dynamic-pressure compensation type rotary soil sampler | |
| CN211115979U (en) | Low-disturbance sampling device for various ocean stratums | |
| CN210422536U (en) | Coupling pipe column external cutting and fishing integrated tool |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |