CN205558847U - Deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig - Google Patents

Deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig Download PDF

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Publication number
CN205558847U
CN205558847U CN201620376656.8U CN201620376656U CN205558847U CN 205558847 U CN205558847 U CN 205558847U CN 201620376656 U CN201620376656 U CN 201620376656U CN 205558847 U CN205558847 U CN 205558847U
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China
Prior art keywords
pipe
tube
bit
hole
wire line
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Withdrawn - After Issue
Application number
CN201620376656.8U
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Chinese (zh)
Inventor
万步炎
黄筱军
王佳亮
彭佑多
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN201620376656.8U priority Critical patent/CN205558847U/en
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Publication of CN205558847U publication Critical patent/CN205558847U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig, including outer tube assembly and inner tube assembly, the inner tube assembly including dragging for spearhead mechanism, dragging for the lower extreme of spearhead mechanism and being connected with bullet card positioning mechanism, bullet card positioning mechanism is through hanging on the ring places the seating ring of outer tube assembly in, and bullet card positioning mechanism is through interior coupling and interior union coupling, the rock core bushing pipe sets up in the inner tube, the lower extreme of inner tube is equipped with interior pipe bit, and drag for including the setting in the pipe bit in location clamping ring and sea, be equipped with the sealing washer between outer pipe bit and the interior pipe bit, be equipped with the rivers route that is used for feeding through between inner tube and the outer tube annular gap and rock core bushing pipe inner chamber on the interior coupling, and be used for feeding through between inner tube and the outer tube annular gap's between annular gap and inner tube and the rock core bushing pipe rivers route. The utility model discloses simple structure, reliability height, and can avoid the flush fluid to erode the directness of sample, improve deep -sea sediment wire line coring rate, reduce the disturbance of sample.

Description

A kind of bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig
Technical field
This utility model relates to a kind of deposit cord coring drill, especially relates to a kind of bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig.
Background technology
The exploitation of deep-sea resources have become as a new focus of countries in the world Future strategy.Along with the development of deep-sea drilling technology, it proposes higher index request to core drilling quality.When running into sediment stratum in drilling process, if using conventional cord coring drill, and use direct circulation wire line coring mode to creep into, malleation owing to being full of in sea water and drilling tool in drilling tool is bigger, easily cause rock core resistance during entering inner tube of core barrel excessive, causing rate of coring to reduce, the disturbance of sample and secondary destructiveness are relatively big, affect integrity and the quality of core sample.Additionally, when the soft or hard intertonguing thing stratum being mingled with a small amount of thin layer rock or layer of sand is crept into, conventional cord coring drill cannot ensure softer deposit and the effect of coring of harder thin layer rock, bad adaptability simultaneously.
Summary of the invention
In order to solve above-mentioned technical problem, the bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig that this utility model provides a kind of simple in construction, reliability is high, it can improve the rate of coring when soft or hard intertonguing thing stratum, seabed is crept into.
The technical solution adopted in the utility model is: include that outer pipe assembly and inner tube assembly, described outer pipe assembly include adapter coupling, bullet card room, outer tube, seat ring, reamer and outer pipe bit;Described inner tube assembly includes dragging for spearhead mechanism, bullet card detent mechanism, hanging ring, inner pipe joint, inner tube, rock core bushing pipe, location pressure ring, sea are dragged for and interior pipe bit;The lower end dragging for spearhead mechanism is connected with bullet card detent mechanism, and bullet card detent mechanism is provided with hanging ring, is placed on the seat ring in outer tube by hanging ring, and the lower end of bullet card detent mechanism is connected with the upper end of inner pipe joint;The lower end of inner pipe joint is connected with the upper end of inner tube, and rock core bushing pipe is arranged in inner tube;Inner pipe joint is provided with for connecting annular gap and the water-flowing path of rock core bushing pipe inner chamber between inner and outer tubes, and this water-flowing path is provided with backwater ball valve;It is additionally provided with on inner pipe joint for connecting between inner and outer tubes the water-flowing path of annular gap between annular gap and inner tube and rock core bushing pipe;The lower end of inner tube is connected with interior pipe bit, and location pressure ring is arranged on the interior step of interior pipe bit, and the lower section of interior pipe bit inner position pressure ring is provided with sea and drags for;It is provided with sealing ring between outer pipe bit and interior pipe bit.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, the bottom surface of said inner tube joint being provided with blind hole in the axial direction, blind hole is shoulder hole;It is provided with water proof set in blind hole, at the aperture of blind hole, is provided with backwater ball valve;The top of blind hole is along the circumferential direction evenly arranged with inclined hole;Gap between inclined hole connection blind hole and inner pipe joint and outer tube;The inner space of endoporus, backwater ball valve and rock core bushing pipe that inclined hole is overlapped by water proof;The inwall of inner pipe joint and form lacuna between water-jacket outer wall, is evenly arranged with the through hole for connecting annular gap between lacuna with outer tube and inner tube and the most respectively for connecting the through hole of annular gap between lacuna and inner tube and rock core bushing pipe at the lacuna of inner pipe joint.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, described inclined hole aperture on inner pipe joint inwall is higher than the aperture on inner pipe joint outer wall, and at the aperture that inclined hole is on inner pipe joint outer wall, it being provided with annular groove, the cross section of groove is V-shaped.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, the inwall of said inner tube drill bit is along the circumferential direction evenly arranged with multiple water-flowing trough.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, it is provided with adjusting washer (disk) between described bullet card detent mechanism and inner pipe joint, adjusting washer (disk) can internally be adjusted with the relative position of outer pipe bit by pipe bit, described interior pipe bit is ahead of outer pipe bit, or concordant with outer pipe bit, or inside contract outside in pipe bit.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, the external cylindrical surface of described location pressure ring is along the circumferential direction evenly arranged with multiple water-flowing trough.
The above-mentioned bottom sediment wire line coring three-layer pipe drilling tool be applicable to seabed rig, described sealing ring is U-shaped sealing ring or O RunddichtringO.
Compared with prior art, the beneficial effects of the utility model are:
1) this utility model has double dynamic function, both pure press mode can have been used to core, can core to use rotary drilling mode again, evenly distributed in the circumferential direction on external cylindrical surface of the inwall of pipe bit and location pressure ring in it have multiple water-flowing trough, the inner pipe joint in this utility model with point water function is coordinated to be used together, when using rotary drilling mode to creep into, flushing liquor can be made to flow through at the bottom of hole along the annular gap between rock core bushing pipe and inner tube, effectively prevent flushing liquor to directly the washing away of sample in rock core bushing pipe, reduce the disturbance of sample;
Inclined hole on this utility model inner pipe joint is provided with annular groove at the aperture on inner pipe joint outer wall, the cross section of groove is V-shaped, when using rotary drilling mode to creep into, the flushing liquor flowing through at a high speed annular groove can be formed about a negative pressuren zone at groove, swabbing effect is produced in making rock core bushing pipe, be conducive to the water in rock core bushing pipe to discharge smoothly along inclined hole, improve rate of coring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of location of the present utility model pressure ring.
In figure: 1-drags for spearhead mechanism;2-adapter coupling;3-bullet card room;4-bullet mechanism for card;5-hanging ring;6-seat ring;7-adjusting washer (disk);8-outer tube;9-inner pipe joint;10-water proof set;11-backwater ball valve;12-inner tube;13-rock core bushing pipe;14-reamer;15-positions pressure ring;16-drags in sea;Pipe bit in 17-;18-sealing ring;The outer pipe bit of 19-.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As it is shown in figure 1, this utility model includes outer pipe assembly and inner tube assembly, inner tube assembly is placed in outer pipe assembly.Described outer pipe assembly includes bullet card shelves 2, bullet card room 3, seat ring 6, outer tube 8, reamer 14 and outer pipe bit 19;Bullet card shelves 2, bullet card room 3, outer tube 8, reamer 14 and outer pipe bit 19 are sequentially connected with;Seat ring 6 is arranged on the inwall of outer tube 8.
Described inner tube assembly includes dragging for spearhead mechanism 1, bullet card detent mechanism 4, hanging ring 5, adjusting washer (disk) 7, inner pipe joint 9, inner tube 12, rock core bushing pipe 13, location pressure ring 15, sea drag for 16 and interior pipe bit 17;The lower end dragging for spearhead mechanism 1 is connected with bullet card detent mechanism 4, the bottom of bullet card detent mechanism 4 is provided with hanging ring 5, hanging ring 5 is placed on the seat ring 6 in outer tube 8, the lower end of bullet card detent mechanism 4 is connected with the upper end of inner pipe joint 9, is provided with adjusting washer (disk) 7 between bullet card detent mechanism 4 and inner pipe joint 9;By adjusting the number of the adjusting washer (disk) 7 between bullet card detent mechanism 4 and inner pipe joint 9, can internally be adjusted with the relative position of outer pipe bit 19 by pipe bit 17, in realizing, pipe bit 17 inside contracts outside in pipe bit 19, or flushes with outer pipe bit 19, or is ahead of outer pipe bit 19.The lower end of inner pipe joint 9 is connected with the upper end of inner tube 12;Rock core bushing pipe 13 is arranged in inner tube 12;The lower end of inner tube 12 is connected with interior pipe bit 17, and location pressure ring 15 is arranged on the interior step of interior pipe bit 17, and the lower end of rock core bushing pipe 13 is arranged on the step surface of location pressure ring 15 endoporus.The lower section of interior pipe bit 17 inner position pressure ring 15 is provided with sea and drags for 16.Being provided with sealing ring 18 between outer pipe bit 19 and interior pipe bit 18, sealing ring 18 uses U-shaped sealing ring or O RunddichtringO.
Being provided with blind hole 91 on the bottom surface of described inner pipe joint 9 in the axial direction, blind hole 91 is shoulder hole.Water proof set 10 is installed in blind hole 91, at the aperture of blind hole 91, is provided with backwater ball valve 11.The top of blind hole 91 is along the circumferential direction evenly arranged with multiple inclined hole 92, and inclined hole 92 connects the gap between blind hole 91 and inner pipe joint 9 and outer tube 8.The inclined hole 92 endoporus, backwater ball valve 11 and the inner space of rock core bushing pipe 13 by water proof set 10, formed for connecting annular gap and the water-flowing path of rock core bushing pipe 13 inner chamber between inner pipe joint 9 and outer tube 8, backwater ball valve 11 is check valve, only allows flushing liquor to flow to the annular gap between inner pipe joint 9 and outer tube 8 from the inner chamber of rock core bushing pipe 13.The described inclined hole 92 aperture at inner pipe joint inwall is higher than the aperture at inner pipe joint outer wall, and is provided with annular groove at the aperture that inclined hole 92 is on inner pipe joint outer wall, and the cross section of groove is V-shaped.When this utility model uses rotary drilling mode to creep into, the flushing liquor flowing through at a high speed annular groove can be formed about a negative pressuren zone at groove, the water produced in swabbing effect, beneficially rock core bushing pipe 13 in making rock core bushing pipe 13 is discharged along inclined hole 92 smoothly, improves rate of coring.
Form lacuna in the middle part of the inwall of blind hole 91 and between the outer wall of water proof set 10, at the lacuna of inner pipe joint 9, be along the circumferential direction evenly arranged with multiple through hole 93 for connecting annular gap between lacuna with outer tube 8 and inner tube 12 and multiple through hole 94 for connecting annular gap between lacuna and inner tube 12 and rock core bushing pipe 13.Through hole 93, lacuna and through hole 94 are constituted for connecting between inner pipe joint 9 and outer tube 8 water-flowing path of annular gap between annular gap and inner tube 12 and rock core bushing pipe 13.
As shown in Figure 1, 2, the inwall of said inner tube drill bit 17 being along the circumferential direction evenly arranged with multiple water-flowing trough 171, water-flowing trough 171 is axially arranged along interior pipe bit 17.Evenly distributed in the circumferential direction on the external cylindrical surface of described location pressure ring 15 have multiple water-flowing trough 151, and water-flowing trough 151 is arranged along the axis direction of location pressure ring 15.
It is provided with sealing ring 18 between outer pipe bit 19 of the present utility model and interior pipe bit 17, annular gap between inner tube 8 and outer tube 6 is effectively sealed, coordinate the aspirator on rig, piston type negative pressure is formed in can making this utility model, realize suction wire line coring, stop rock core to glide, improve the wire line coring rate of bottom sediment.It is provided with water-flowing trough on the inwall of interior pipe bit 17 of the present utility model and the external cylindrical surface of location pressure ring 15, inner pipe joint 9 of the present utility model is coordinated to use, flushing liquor can be made to flow through at the bottom of hole along the annular gap of rock core bushing pipe 13 and inner tube 12, effectively prevent flushing liquor to directly the washing away of sample in rock core bushing pipe 13, reduce the disturbance of sample so that reliability of the present utility model is high.This utility model has double dynamic function, and interior pipe bit 17 and inner tube assembly together can rotate with outer tube 8, both can take deposit to use the pure press-in mode of creeping into, and can take hard rock rock core to use rotary drilling mode again.
Specifically used method of the present utility model is as follows: when running into sediment stratum, transfers inner tube assembly of the present utility model and creeps into, and during creeping into, water pump stops supplying water in hole, and this utility model, under the drive of drill power head, is pressed into sediment stratum.When this utility model press-in sediment stratum carries out wire line coring operation, aspirator on rig is drawn water in drilling rod and cord coring drill by feed pipe, performance parameter by appropriate design aspirator, make the water yield that aspirator extracts from drilling rod and inner chamber of the present utility model of substantially equal to the displacement of drilling rod inner chamber with because deposit enters this utility model, form piston type negative pressure in this utility model, improve wire line coring rate of the present utility model.When being mingled with a small amount of thin layer rock in sediment stratum, drilling tool uses rotary drilling mode, and interior pipe bit and inner tube assembly together rotate fractured rock with outer tube;Water pump supplies water in hole, and cooling water through inner pipe joint 9, flows through at the bottom of hole along the annular gap between inner tube 12 and rock core bushing pipe 13, it is to avoid cooling water, to directly the washing away of sample in rock core bushing pipe 13, reduces the disturbance of sample.

Claims (7)

1. being applicable to a bottom sediment wire line coring three-layer pipe drilling tool for seabed rig, including outer pipe assembly and inner tube assembly, described outer pipe assembly includes adapter coupling, bullet card room, outer tube, seat ring, reamer and outer pipe bit;It is characterized in that: described inner tube assembly includes dragging for spearhead mechanism, bullet card detent mechanism, hanging ring, inner pipe joint, inner tube, rock core bushing pipe, location pressure ring, sea are dragged for and interior pipe bit;The lower end dragging for spearhead mechanism is connected with bullet card detent mechanism, and bullet card detent mechanism is provided with hanging ring, is placed on the seat ring in outer tube by hanging ring, and the lower end of bullet card detent mechanism is connected with the upper end of inner pipe joint;The lower end of inner pipe joint is connected with the upper end of inner tube, and rock core bushing pipe is arranged in inner tube;The inside of inner pipe joint is provided with for connecting annular gap and the water-flowing path of rock core bushing pipe inner chamber between inner and outer tubes, and this water-flowing path is provided with backwater ball valve;It is additionally provided with inside inner pipe joint for connecting between inner and outer tubes the water-flowing path of annular gap between annular gap and inner tube and rock core bushing pipe;The lower end of inner tube is connected with interior pipe bit, and location pressure ring is arranged on the interior step of interior pipe bit, and the lower section of location pressure ring is provided with sea and drags for;It is provided with sealing ring between outer pipe bit and interior pipe bit.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 1, is characterized in that: be provided with blind hole on the bottom surface of said inner tube joint in the axial direction, blind hole is shoulder hole;It is provided with water proof set in blind hole, at the aperture of blind hole, is provided with backwater ball valve;The top of blind hole is along the circumferential direction evenly arranged with inclined hole;Gap between inclined hole connection blind hole and inner pipe joint and outer tube;The inner space of endoporus, backwater ball valve and rock core bushing pipe that inclined hole is overlapped by water proof;The inwall of inner pipe joint and form lacuna between water-jacket outer wall, is evenly arranged with the through hole for connecting annular gap between lacuna with outer tube and inner tube and the most respectively for connecting the through hole of annular gap between lacuna and inner tube and rock core bushing pipe at the lacuna of inner pipe joint.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 2, it is characterized in that: described inclined hole aperture on inner pipe joint inwall is higher than the aperture on inner pipe joint outer wall, and at the aperture that inclined hole is on inner pipe joint outer wall, it being provided with annular groove, the cross section of groove is V-shaped.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 1, is characterized in that: be along the circumferential direction evenly arranged with multiple water-flowing trough on the inwall of said inner tube drill bit.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 1 and 2, it is characterized in that: between described bullet card detent mechanism and inner pipe joint, be provided with adjusting washer (disk), adjusting washer (disk) can internally be adjusted with the relative position of outer pipe bit by pipe bit, described interior pipe bit is ahead of outer pipe bit, or concordant with outer pipe bit, or inside contract outside in pipe bit.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 1, is characterized in that: be along the circumferential direction evenly arranged with multiple water-flowing trough on the external cylindrical surface of described location pressure ring.
The bottom sediment wire line coring three-layer pipe drilling tool being applicable to seabed rig the most according to claim 1, is characterized in that: described sealing ring is U-shaped sealing ring or O RunddichtringO.
CN201620376656.8U 2016-04-29 2016-04-29 Deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig Withdrawn - After Issue CN205558847U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620376656.8U CN205558847U (en) 2016-04-29 2016-04-29 Deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig

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Application Number Priority Date Filing Date Title
CN201620376656.8U CN205558847U (en) 2016-04-29 2016-04-29 Deep -sea sediment wire line coring three -layer pipe bit utensil suitable for seabed rig

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715221A (en) * 2016-04-29 2016-06-29 湖南科技大学 Seafloor sediment rope coring three-layer pipe drilling tool suitable for seafloor drilling machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715221A (en) * 2016-04-29 2016-06-29 湖南科技大学 Seafloor sediment rope coring three-layer pipe drilling tool suitable for seafloor drilling machine
CN105715221B (en) * 2016-04-29 2018-02-23 湖南科技大学 A kind of bottom sediment wire line coring three-layer pipe drilling tool suitable for seabed rig

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Granted publication date: 20160907

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