CN105604514A - Submarine sediment wire line coring drilling tool suitable for submarine drilling rig - Google Patents
Submarine sediment wire line coring drilling tool suitable for submarine drilling rig Download PDFInfo
- Publication number
- CN105604514A CN105604514A CN201610142443.3A CN201610142443A CN105604514A CN 105604514 A CN105604514 A CN 105604514A CN 201610142443 A CN201610142443 A CN 201610142443A CN 105604514 A CN105604514 A CN 105604514A
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- CN
- China
- Prior art keywords
- inner tube
- tube
- submarine
- bit
- outer pipe
- 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.)
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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
-
- 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
Abstract
The invention discloses a submarine sediment wire line coring drilling tool suitable for a submarine drilling rig. The drilling tool comprises an outer tube assembly and an inner tube assembly; the outer tube assembly comprises an outer tube, a reamer and an outer tube drill bit; the inner tube assembly comprises a spearhead salvaging mechanism, an elastic clip positioning mechanism, a hanger ring, a through water short tube or single-acting mechanism with a return water ball valve, an inner tube end cover, an inner tube and an core liner tube; the lower end of the spearhead salvaging mechanism is connected with the elastic clip positioning mechanism, the hanger ring is arranged on the lower portion of the elastic clip positioning mechanism and arranged on a seat ring in the outer tube, and the lower end of the elastic clip positioning mechanism is connected with the inner tube end cover; the inner tube end cover is arranged at the upper end of the through water short tube or single-acting mechanism, and the lower end of the through water short tube or single-acting mechanism is connected with the upper end of the inner tube; the core liner tube is arranged in the inner tube; a seal ring is arranged between the outer tube drill bit and the inner tube. The submarine sediment wire line coring drilling tool suitable for the submarine drilling rig is simple in structure, high in reliability and capable of greatly increasing submarine sediment wire line coring rate and effectively reducing disturbance of submarine sediment samples at the same time.
Description
Technical field
The present invention relates to a kind of deposit cord coring drill, especially relate to a kind of seabed that is applicable to seabed rig and sinkLong-pending thing cord coring drill.
Background technology
The exploitation of deep seafloor resource have become a frontier of countries in the world Future strategy, along with bore at deep-seaThe development of spy technology, it is had higher requirement to drilling efficiency and quality. Run into deposit stratum in drilling process time,If use conventional cord coring drill, and adopt the direct circulation wire line coring mode of creeping into creep into, due in drilling tool, be full of seawater andMalleation in drilling tool is larger, easily causes rock core to enter in inner tube of core barrel process resistance excessive, causes wire line coring rate to reduce,The disturbance of sample and secondary destructiveness are larger, have a strong impact on integrality and the quality of core sample. In addition be mingled with on a small quantity,When creep on the soft or hard intertonguing thing stratum of thin layer rock or layer of sand, cannot ensure softer deposit and harder thin simultaneouslyThe effect of coring of layer rock.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of simple in structure, sea that is applicable to seabed rig that reliability is highBottom sediment cord coring drill, it can improve bottom sediment stratum wire line coring rate, but also can reduce sampleDisturbance.
The technical solution used in the present invention is: comprise outer pipe assembly and inner tube assembly; Described outer pipe assembly comprise outer tube,Reamer and outer pipe bit; Described inner tube assembly comprise drag for spearhead mechanism, bullet card detent mechanism, hanging ring, water flowing short tube orTake back single action mechanism, inner tube end cap, inner tube and the rock core bushing pipe of water polo valve; The lower end and the bullet card detent mechanism that drag for spearhead mechanism connectConnect, the bottom of bullet card detent mechanism is provided with hanging ring, and hanging ring is placed on the seat ring in outer tube; The lower end of bullet card detent mechanism withInner tube end cap connects; Inner tube end cap is arranged on the upper end of water flowing short tube or single action mechanism, the lower end of water flowing short tube or single action mechanismBe connected with the upper end of inner tube; Rock core bushing pipe is arranged in inner tube; Between outer pipe bit and inner tube, be provided with sealing ring.
In the above-mentioned bottom sediment cord coring drill that is applicable to seabed rig, described sealing ring is U-shaped sealingCircle or O RunddichtringO.
In the above-mentioned bottom sediment cord coring drill that is applicable to seabed rig, on the sidewall of described water flowing short tubeBe provided with multiple limbers.
In the above-mentioned bottom sediment cord coring drill that is applicable to seabed rig, in the lower end of described inner tube is provided withPipe short circuit, the lower end of inner tube short circuit is provided with interior shoe or interior pipe bit; Interior shoe is ahead of outer pipe bit; Described interior pipe bitHead is ahead of outer pipe bit, or concordant with outer pipe bit, or inside contracts outside in pipe bit.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is simple in structure, reliability is high; Between outer pipe bit of the present invention and inner tube, be provided with sealing ring, make inner tube and outerSealing property between pipe annular gap is better, coordinates the aspirator on rig, can make to form piston type in the present invention and bearPress, realize suction wire line coring, when having increased substantially bottom sediment wire line coring rate, effectively reduce bottom sedimentThe disturbance of sample; When the present invention creeps in the soft or hard intertonguing thing stratum that is mingled with a small amount of thin layer rock or layer of sand, drilling toolTake two flowing modes, interior pipe bit and inner tube assembly can together rotate with outer tube, effectively fractured rock.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the embodiment of the present invention 3.
Fig. 4 is the structural representation of the embodiment of the present invention 4.
In figure: 1-drags for spearhead mechanism; 2-bullet card detent mechanism; 3-hanging ring; 4-inner tube end cap; 41: bolt; 5-water flowing is shortPipe; 6-outer tube; 61: seat ring; 7-rock core bushing pipe; 8-inner tube; 9-reamer; 10-U RunddichtringO; The outer pipe bit of 11-; 12-inner tubeShort circuit; 13-pawl spring; Shoe in 14-; 15-O RunddichtringO; Pipe bit in 16-.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment 1
As shown in Figure 1, the present invention includes outer pipe assembly and inner tube assembly, inner tube assembly is placed in outer pipe assembly. Described outer tube is totalBecome to comprise outer tube 6, reamer 9 and outer pipe bit 11; The upper end of reamer 9 is connected with outer tube 6; Outside the lower end of reamer 9 is provided withPipe bit 11. Described inner tube assembly comprises and drags for spearhead mechanism 1, bullet card detent mechanism 2, hanging ring 3, inner tube end cap 4, water flowing short tube5, rock core bushing pipe 7, inner tube 8, inner tube short circuit 12 and interior shoe 14. The bottom of bullet card detent mechanism 2 is provided with hanging ring 3; Hanging ring 3Be placed on the seat ring 61 of outer tube 6 internal upper parts. Bullet card detent mechanism 2 is arranged on and drags in spearhead mechanism 1, under bullet card detent mechanism 2End is connected with inner tube end cap 4 by bolt 41; Inner tube end cap 4 is arranged on the upper end of water flowing short tube 5; The lower end of water flowing short tube 5 withThe upper end of inner tube 8 connects, and the sidewall of water flowing short tube 5 is provided with multiple limbers. Rock core bushing pipe 7 is located in inner tube 8; Inner tube 8Lower end is connected with inner tube short circuit 12; The lower end of rock core bushing pipe 7 is supported on the step of inner tube short circuit 12 endoporus. Interior shoe 14 with inPipe short circuit 12 connects; In interior shoe 14, pawl spring 13 is installed. Between outer pipe bit 11 and inner tube 8, be provided with U-shaped sealing ring 10, described inThe form of sealing ring 10 can be carried out preferably according to the nature of ground of drilled strata. In order to reduce the disturbance to rock core, described inShoe 14 is ahead of outer pipe bit 11, and the distance of interior shoe 14 leading outer pipe bits 11 can be adjusted according to drilled strata conditionWhole.
Between outer pipe bit 11 of the present invention and inner tube 8, be provided with U-shaped sealing ring 10, make ring-type between inner tube 8 and outer tube 6Gap obtains effective sealing, coordinates the aspirator on rig, can make to form piston type negative pressure in the present invention, realizes suction ropeAsk for the heart, stop rock core to glide, increase substantially bottom sediment wire line coring rate. Interior shoe 14 of the present invention and inner tube are shortConnect 12 and be ahead of outer pipe bit 11, effectively avoided flushing liquor to the washing away of rock core, reduced the disturbance of core sample, improvedThe original position characteristic of rock core. The present invention has two moving functions, and interior shoe 14 and inner tube assembly can together rotate with outer tube 6, both canAdopt the pure mode of creeping into that is pressed into get deposit, can adopt again rotary drilling mode to get hard rock rock core.
Concrete using method of the present invention is as follows: in the time running into deposit stratum, transfer inner tube assembly of the present invention and carry outCreep into, in the process of creeping into, water pump stops supplying water in hole, and the present invention, under the drive of unit head, is pressed into deposit stratum. WhenWhen the present invention is pressed into deposit stratum and carries out wire line coring operation, the aspirator on rig by feed pipe from drilling rod and ropeIn core drill, draw water, by the performance parameter of appropriate design aspirator, make aspirator from drilling rod and of the present invention inThe water yield that chamber is extracted with enter the present invention because of deposit and substantially equate to the displacement of drilling rod inner chamber, formation piston in the present inventionFormula negative pressure, has improved wire line coring rate of the present invention.
Embodiment 2
As shown in Figure 2, its structure is similar to example 1, and difference is: between outer pipe bit 11 and inner tube 8, be provided with the sealing of O typeCircle 15, water flowing short tube 5 adopts the single action mechanism that takes back water polo valve to substitute. Coordinate the aspirator on rig to use, can make thisIn invention, form piston type negative pressure, realize suction wire line coring.
Embodiment 3
As shown in Figure 3, its structure is similar to example 1, and difference is: interior shoe 14 replaces with interior pipe bit 16, described inPipe bit 16 can be ahead of outer pipe bit 11 slightly, also can flush or be recessed in outer pipe bit 11 with outer pipe bit 11.When chance is mingled with the soft or hard intertonguing thing stratum of a small amount of thin layer rock or layer of sand, interior pipe bit 16 and inner tube assembly can be with outer tubesTogether rotate effective broken thin layer rock. Owing to being mingled with the soft or hard intertonguing thing stratum of a small amount of thin layer rock or layer of sandHardness is larger, in order effectively to block disconnected rock core, in described interior pipe bit 16, must be provided with the pawl that has the card heart and protect heart dual-use functionSpring 13.
Embodiment 4
As shown in Figure 4, its structure is similar to example 1, and difference is: in it, in shoe 14, pawl spring 13 is no longer set. Due toConventional deposit stratum is softer, in marine engineering geology prospecting, for fear of pawl spring 13 to core sample produce disturbance andSurface scratching is destroyed, and affects the quality of core sample, in interior shoe 14, pawl spring 13 can be set.
Claims (4)
1. a bottom sediment cord coring drill that is applicable to seabed rig, comprises outer pipe assembly and inner tube assembly, its spyLevy and be: described outer pipe assembly comprises outer tube, reamer and outer pipe bit; Described inner tube assembly comprises and drags for spearhead mechanism, bulletCard detent mechanism, hanging ring, water flowing short tube or take back single action mechanism, inner tube end cap, inner tube and the rock core bushing pipe of water polo valve; Drag for lanceThe lower end of mechanism is connected with bullet card detent mechanism, and the bottom of bullet card detent mechanism is provided with hanging ring, and hanging ring is placed in outer tubeSeat ring on, the lower end of bullet card detent mechanism is connected with inner tube end cap; Inner tube end cap is arranged on water flowing short tube or single action mechanismUpper end, water flowing short tube or the lower end of single action mechanism and the upper end of inner tube are connected; Rock core bushing pipe is arranged in inner tube; Outer pipe bit withBetween inner tube, be provided with sealing ring.
2. the bottom sediment cord coring drill that is applicable to seabed rig according to claim 1, is characterized in that: described inSealing ring be U-shaped sealing ring or O RunddichtringO.
3. the bottom sediment cord coring drill that is applicable to seabed rig according to claim 1, is characterized in that: described inThe sidewall of water flowing short tube be provided with multiple limbers.
4. the bottom sediment cord coring drill that is applicable to seabed rig according to claim 1, is characterized in that: described inThe lower end of inner tube be provided with inner tube short circuit, the lower end of inner tube short circuit is provided with interior shoe or interior pipe bit, outside interior shoe is ahead ofPipe bit; Described interior pipe bit is ahead of outer pipe bit, or concordant with outer pipe bit, or inside contracts outside in pipe bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142443.3A CN105604514B (en) | 2016-03-14 | 2016-03-14 | A kind of bottom sediment cord coring drill suitable for seabed drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142443.3A CN105604514B (en) | 2016-03-14 | 2016-03-14 | A kind of bottom sediment cord coring drill suitable for seabed drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105604514A true CN105604514A (en) | 2016-05-25 |
| CN105604514B CN105604514B (en) | 2018-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610142443.3A Active CN105604514B (en) | 2016-03-14 | 2016-03-14 | A kind of bottom sediment cord coring drill suitable for seabed drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604514B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625807A (en) * | 2018-07-05 | 2018-10-09 | 湖南科技大学 | A kind of engineering exploration cord coring drill suitable for seabed drilling machine |
| CN110230480A (en) * | 2019-07-15 | 2019-09-13 | 湖南科技大学 | The anti-race boring device of deep seafloor drilling machine core plugging notifying mechanism of rope core drilling |
| WO2020034661A1 (en) * | 2018-08-13 | 2020-02-20 | 湖南科技大学 | Sediment core-boring drilling process suitable for submarine rope core-boring drill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033281A1 (en) * | 1998-07-29 | 2002-03-21 | Aumann James T. | System for recovering core samples under pressure |
| US20050183886A1 (en) * | 2004-02-24 | 2005-08-25 | Independent Administrative Institution Japan Agency For Marine-Earth Science And Technology | Method of coring a crustal core sample and flow-able coating material for coring a crustal core sample |
| CN204476329U (en) * | 2015-02-02 | 2015-07-15 | 陕西铁道工程勘察有限公司 | A kind of basement rock triple pipe core bit |
| CN105239947A (en) * | 2015-10-30 | 2016-01-13 | 湖南科技大学 | Seafloor sediment coring device applicable to seafloor drilling machine |
| CN205400640U (en) * | 2016-03-14 | 2016-07-27 | 湖南科技大学 | Deep -sea sediment wire line coring drilling tool suitable for seabed rig |
-
2016
- 2016-03-14 CN CN201610142443.3A patent/CN105604514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033281A1 (en) * | 1998-07-29 | 2002-03-21 | Aumann James T. | System for recovering core samples under pressure |
| US20050183886A1 (en) * | 2004-02-24 | 2005-08-25 | Independent Administrative Institution Japan Agency For Marine-Earth Science And Technology | Method of coring a crustal core sample and flow-able coating material for coring a crustal core sample |
| CN204476329U (en) * | 2015-02-02 | 2015-07-15 | 陕西铁道工程勘察有限公司 | A kind of basement rock triple pipe core bit |
| CN105239947A (en) * | 2015-10-30 | 2016-01-13 | 湖南科技大学 | Seafloor sediment coring device applicable to seafloor drilling machine |
| CN205400640U (en) * | 2016-03-14 | 2016-07-27 | 湖南科技大学 | Deep -sea sediment wire line coring drilling tool suitable for seabed rig |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625807A (en) * | 2018-07-05 | 2018-10-09 | 湖南科技大学 | A kind of engineering exploration cord coring drill suitable for seabed drilling machine |
| WO2020034661A1 (en) * | 2018-08-13 | 2020-02-20 | 湖南科技大学 | Sediment core-boring drilling process suitable for submarine rope core-boring drill |
| CN110230480A (en) * | 2019-07-15 | 2019-09-13 | 湖南科技大学 | The anti-race boring device of deep seafloor drilling machine core plugging notifying mechanism of rope core drilling |
| CN110230480B (en) * | 2019-07-15 | 2021-04-20 | 湖南科技大学 | Anti-drill-running device of rope core drill for deep sea submarine drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105604514B (en) | 2018-10-23 |
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Effective date of registration: 20221027 Address after: 411101 Room 818, 8th Floor, Chuangxin Building, No. 9 Xiaotang Road, High tech Zone, Xiangtan City, Hunan Province Patentee after: Hunan Hainiu Geological Prospecting Technology Co.,Ltd. Address before: 411100 Taoyuan Road, Yuhu District, Xiangtan City, Hunan Province Patentee before: HUNAN University OF SCIENCE AND TECHNOLOGY |