CN108625807A - A kind of engineering exploration cord coring drill suitable for seabed drilling machine - Google Patents

A kind of engineering exploration cord coring drill suitable for seabed drilling machine Download PDF

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Publication number
CN108625807A
CN108625807A CN201810730366.2A CN201810730366A CN108625807A CN 108625807 A CN108625807 A CN 108625807A CN 201810730366 A CN201810730366 A CN 201810730366A CN 108625807 A CN108625807 A CN 108625807A
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CN
China
Prior art keywords
endoporus
tube
pipe
power transmission
connect
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
Application number
CN201810730366.2A
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Chinese (zh)
Inventor
王佳亮
万步炎
彭奋飞
黄筱军
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Publication date
Application filed by Hunan University of Science and Technology filed Critical Hunan University of Science and Technology
Priority to CN201810730366.2A priority Critical patent/CN108625807A/en
Publication of CN108625807A publication Critical patent/CN108625807A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/18Apparatus 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 kind of engineering exploration cord coring drill suitable for seabed drilling machine, including outer pipe assembly and inner tube assembly, outer pipe assembly includes sequentially connected bullet card shelves head, bullet card room, outer tube, reamer and drill bit;Inner tube assembly includes fishing spearhead, bullet card detent mechanism, plays clamping stent, single action mechanism, inner pipe joint, return water ball valve, inner tube and rock core bushing pipe;Fishing spearhead is connect with bullet card detent mechanism, and bullet card detent mechanism is connect with clamping stent is played;It plays clamping stent side wall and is equipped with hanging ring, hanging ring is placed on the seat ring on outer tube wall;It plays clamping stent to connect with single action mechanism, single action mechanism is connect with inner pipe joint, and the lower end of inner pipe joint and the upper end of inner tube connect, and rock core bushing pipe is arranged in inner tube;Single action mechanism includes mandrel, casing end cap, upper power transmission cutting ferrule and lower power transmission cutting ferrule;The single action performance of the present invention is stable, bearing centering effect is good, it is small to the level of disruption of soil sample, be not easy when salvaging inner tube assembly it is stuck.

Description

A kind of engineering exploration cord coring drill suitable for seabed drilling machine
Technical field
The present invention relates to a kind of cord coring drills, are reconnoitred more particularly, to a kind of seabed engineering suitable for seabed drilling machine Cord coring drill.
Background technology
The development and utilization of submarine oil resources has become a new hot spot of countries in the world Future strategy.In seabed oil It is to obtain engineering geology by probing means during prospecting early period of the oceans such as gas well field and drilling platforms builds to foundation engineering Sample most straightforward approach.Cord coring drill used at present is primarily directed to land-based area rock-core borer and is located at sea drilling ship Offshore rig on deck uses, the advanced form of structure type generally use inner tube, by 2 secondary single direction thrust ball bearings realizations The single action of pipe assembly, and the clamp spring of mating band spring leaf realizes that the card of sample takes.And seabed drilling machine is by required inner tube assembly Seabed coring operation is carried out again after all being brought under water by the drill pipe storage on drilling machine ontology, waits for whole coring operations work After, then whole inner tube assemblies are promoted to mating lash ship deck with drilling machine, under water longevity of service.It is existing Conventional drilling tool is primarily present problems with:It drilling tool inner tube assembly single action poor performance and is wanting in consideration sea without centering function, existing structure Aqueous corrosion effect, it is poor to the barrier propterty of upper bearing, drilling when due to upper bearing continue pressure-bearing be easy to cause bearing failure, Drilling tool inner tube and outer tube suspension positioning component be easy it is stuck cause to salvage difficult, card concentric mechanism to sample level of disruption big, plastics Rock core bushing pipe can not feel relieved, and when hard soil sample is pressed into coring, soil sample squeezes between bushing pipe and the annular gap of inner tube, makes lining Pipe, which generates plastic deformation, to be caused to extract the practical problems such as difficulty.
Invention content
In order to solve the above technical problem, the present invention provides a kind of inner tube assembly single action performances, and good, card concentric mechanism disturbs sample Degree is small, and can prevent inner tube and the stuck engineering suitable for seabed drilling machine applying working condition of outer tube suspension positioning mechanism component Exploration cord coring drill.
The technical solution adopted by the present invention is:A kind of engineering exploration cord coring drill suitable for seabed drilling machine, including Outer pipe assembly and inner tube assembly, the outer pipe assembly include sequentially connected bullet card shelves head, bullet card room, outer tube, reamer and Drill bit;The inner tube assembly includes fishing spearhead, bullet card detent mechanism, plays clamping stent, single action mechanism, inner pipe joint, return water ball Valve, inner tube and rock core bushing pipe;Fishing spearhead is connect with bullet card detent mechanism, and bullet card detent mechanism is placed in bullet card interior, plays locking position Mechanism is connect with clamping stent is played;It plays clamping stent side wall and is equipped with hanging ring, hanging ring is placed on the seat ring on outer tube wall;Bullet card Holder is connect with single action mechanism, and single action mechanism is connect with inner pipe joint, and the lower end of inner pipe joint and the upper end of inner tube connect, rock core Bushing pipe is arranged in inner tube;
The single action mechanism includes mandrel, casing end cap, upper power transmission cutting ferrule and lower power transmission cutting ferrule;The upper end of mandrel and bullet card branch Frame connects, and the lower end of mandrel passes through casing end cap, the lower end of mandrel to be equipped with locking nut;Casing end cap central bore is stepped hole, Both ends diameter is more than mid diameter;Sleeve end covers and is set with power transmission cutting ferrule in portion's endoporus inner spindle, upper power transmission cutting ferrule and set It is equipped with two-direction thrust bearing between pipe end-cap endoporus step surface, outside framework oil seal is equipped at casing end cap endoporus upper end;Casing end cap It is set with lower power transmission cutting ferrule in the endoporus inner spindle of lower part, thrust axis is equipped between lower power transmission cutting ferrule and casing end cap endoporus step surface It holds, deep groove ball bearing is equipped between lower power transmission cutting ferrule and locking nut;The inner pipe joint both ends are respectively equipped with endoporus, upper end Endoporus be spirally connected with casing end cap, which, which is equipped with, is connected to the logical of lacuna between the endoporus and inner pipe joint and outer tube Hole;The endoporus of inner pipe joint lower end is connected to the endoporus of rock core bushing pipe, and return water ball valve is equipped in the endoporus, is set on the endoporus side wall There is the through-hole for being connected to lacuna between the endoporus and outer tube and inner pipe joint.
The above-mentioned engineering exploration cord coring drill suitable for seabed drilling machine, the upper power transmission cutting ferrule is T junction Structure, upper end are contacted with mandrel flange bottom, the upper circle interference fit of lower part and two-direction thrust bearing;The mandrel and bidirectional propulsion Positioning sleeve is equipped between the lower circle of bearing.
The above-mentioned engineering exploration cord coring drill suitable for seabed drilling machine, the lower end of inner tube connects with advanced Zhu's nozzle It connects, the lower part of the endoporus of advanced Zhu's nozzle is equipped with centering cylinder and positioning step for the centering of rock core bushing pipe, rock core bushing pipe Lower end be placed on the limited step of advanced Zhu's nozzle;The medial surface of advanced Zhu's nozzle endoporus below positioning step is equipped in annular Female barb dovetail groove.
The above-mentioned engineering exploration cord coring drill suitable for seabed drilling machine, the upper and lower end parts of the seat ring endoporus Equipped with step surface;Endoporus between two step surfaces is equipped with chamfering.
Compared with prior art, the beneficial effects of the invention are as follows:
The bearing of the present invention is arranged in closed cavity body structure, can prevent seawater corrosion, and improve bearing uses the longevity Life;Single action mechanism top uses two-direction thrust bearing, can improve the work of drilling tool under the practical drilling condition of continuous compression Reliability, single action mechanism lower part are arranged deep groove ball bearing, improve centering performance;Concave is equipped in advanced Zhu's nozzle of the present invention Barb oat tail groove structure, it is small to soil sample level of disruption in drilling process, during pulling out the heart utilize soil sample expansion self-locking Effect carries out the card heart, reduces the surface scratches of core sample, reduces the level of disruption of sample, and without additional configuration clamp spring, carry Field operation workload is reduced while high sample quality;The seat ring of the present invention has anti-sticking function, can avoid launching Impact force is excessive to be caused stuck with seat ring due to launching for hanging ring in journey in inner tube assembly, causes inner tube assembly to be salvaged difficult Risk;Advanced Zhu's nozzle of the present invention, which can be realized, feels relieved to rock core bushing pipe, prevents in forced coring since soil sample is squeezed The annular gap being pressed between bushing pipe and inner tube solves and extracts difficult ask caused by generating plastic deformation due to bushing pipe Topic.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of the single action mechanism of the present invention.
Fig. 3 is the structural schematic diagram of advanced Zhu's nozzle of the present invention.
Fig. 4 is the structural schematic diagram of the seat ring of the present invention.
In figure:1- drags for spearhead;2- adapter couplings;3- receives card cylinder;4- compression springs;5- bullet snap-gauges;6- bullet cards room;7- bullet card branch Frame;8- hanging rings;9- seat rings;10- mandrels;11- outside framework oil seals;The upper power transmission cutting ferrules of 12-;13- two-direction thrust bearings;14- casings End cap;15- positioning sleeves;16- thrust bearings;Power transmission cutting ferrule under 17-;18- deep groove ball bearings;19- washers;20- locking nuts; 21- inner pipe joints;22- return water ball valves;23- outer tubes;24- inner tubes;25- rock core bushing pipes;26- reamers;27- drill bits;28- is advanced Zhu's nozzle;281- centering cylinders;282- centering steps;283- concave barb dovetail grooves.
Specific implementation mode
The present invention will be further described below with reference to the drawings.
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.It is described outer Pipe assembly includes bullet card shelves head 2, bullet card room 6, seat ring 9, outer tube 23, reamer 26 and drill bit 27;Bullet card shelves head 2, bullet card room 6, Outer tube 23, reamer 26 and drill bit 27 are sequentially connected;Seat ring 9 is mounted on the inner wall of 23 upper end of outer tube.As shown in figure 4, described 9 endoporus of seat ring upper and lower end parts be equipped with step surface 91;Endoporus between two step surfaces 91 is equipped with chamfering 92, the seat of this kind of structure Ring 9 has anti-sticking function, and capable of avoiding hanging ring 8 in launch process in inner tube assembly, impact force is excessive to be caused due to launching It is stuck with seat ring 9, cause inner tube assembly to salvage difficult risk.
The inner tube assembly includes fishing spearhead 1, bullet card detent mechanism, play clamping stent 7, hanging ring 8, single action mechanism, interior Pipe fitting 21, return water ball valve 22, inner tube 24, rock core bushing pipe 25 and advanced Zhu's nozzle 28.Drag for lower end and the bullet card detent mechanism of spearhead 1 Connection, bullet card detent mechanism are located in bullet card room 6, and lower end is connect with clamping stent 7 is played.The lower part for playing the side wall of clamping stent 7 is set There are hanging ring 8, hanging ring 8 to be placed on the seat ring 9 on 23 madial wall of outer tube.Play the upper end of the lower end and single action mechanism of clamping stent 7 Connection, the lower end of single action mechanism are connect with the upper end of inner pipe joint 21, and return water ball valve 22 is equipped in the endoporus of inner pipe joint 21.It is interior The lower end of pipe fitting 21 is connect with the upper end of inner tube 24, and rock core bushing pipe 25 is arranged in inner tube 24;The lower end of inner tube 24 with it is advanced The upper end of Zhu's nozzle 28 connects, and the lower end of rock core bushing pipe 25 is located on the interior step of advanced Zhu's nozzle 28.The bullet card localization machine Structure includes receiving card cylinder 3, compression spring 4 and bullet snap-gauge 5.
As shown in Fig. 2, the single action mechanism includes mandrel 10, casing end cap 14, outside framework oil seal 11, upper power transmission cutting ferrule 12, two-direction thrust bearing 13, positioning sleeve 15, thrust bearing 16, lower power transmission cutting ferrule 17, deep groove ball bearing 18, washer 19 and locking Nut 20.The upper end of mandrel 10 is connect with clamping stent 7 is played, and the lower end of mandrel 10 passes through casing end cap 14, and the lower end of mandrel 10 is set There is locking nut 20.14 centre bore of casing end cap is stepped hole, and both ends diameter is more than mid diameter.14 top endoporus of casing end cap It is set with power transmission cutting ferrule 12 in inner spindle 10, Bidirectional pulling is equipped between 14 endoporus step surface of upper power transmission cutting ferrule 12 and casing end cap Power bearing 13.The upper power transmission cutting ferrule 12 is T-type structure, and upper end is contacted with the flange bottom of mandrel 10, lower part and Bidirectional pulling The upper circle of power bearing 13 is interference fitted.Positioning sleeve 15 is equipped between the mandrel 10 and the lower circle of two-direction thrust bearing 13, it is two-way Thrust bearing 13 can improve the functional reliability of drilling tool under the practical drilling condition of continuous compression.14 endoporus of casing end cap Outside framework oil seal 11 is equipped at upper end.
Lower power transmission cutting ferrule 17, lower power transmission cutting ferrule 17 and casing end cap are set in 14 lower part endoporus inner spindle 10 of casing end cap Between 14 endoporus step surfaces be equipped with thrust bearing 16, between lower power transmission cutting ferrule 17 and locking nut 20 be equipped with deep groove ball bearing 18 and Washer 19, washer 19 is between locking nut 20 and deep groove ball bearing 18.In 21 both ends of inner pipe joint are respectively equipped with Hole 211 and endoporus 212, endoporus 211 and the casing end cap 14 of upper end are spirally connected;211 side wall of endoporus be equipped with connection endoporus 211 with it is interior The through-hole 213 of lacuna between pipe fitting 21 and outer tube 23.The endoporus 212 of 21 lower end of inner pipe joint connects with the endoporus of rock core bushing pipe 25 It is logical, be equipped with return water ball valve 22 in endoporus 212,212 side wall of endoporus be equipped with connection endoporus 213 and outer tube 23 and inner pipe joint 21 it Between lacuna through-hole 214.Outside framework oil seal 11 and inner pipe joint 21 are so that two-direction thrust bearing 13, thrust bearing 16, deep-groove ball axis It holds 18 to be located in closed cavity body structure, it is therefore prevented that the corrosion of seawater improves service life.
As shown in figure 3, the lower part of advanced 28 endoporus of Zhu's nozzle is equipped with the centering cylinder 281 for the centering of rock core bushing pipe It is equipped with annular concave barb dovetail groove with the medial surface of positioning step 282, advanced Zhu's nozzle endoporus of 282 lower section of positioning step 283, the quantity of barb dovetail groove 283 can increase and decrease according to formation characteristics.Female barb dovetail groove 283 was so that the present invention was being crept into It is small to soil sample level of disruption in journey, the card heart is carried out using the expansion self-locking effect of soil sample during pulling out the heart, reduces core sample Surface scratches, reduce the level of disruption of sample, and without additional configuration clamp spring, the scene of reducing is made while improving sample quality Industry workload
The specifically used method of the present invention is as follows:Before drilling starts, manipulator crawl inner tube assembly moves to hole drill hole position, profit Inner tube assembly is transferred to the precalculated position in the outer bottom pipe assembly of hole with the rope salvaging mechanism on drilling machine, makes hanging ring and seat ring The fillet surface of step lower part is in contact to realize that inner tube assembly positions, and carries out drilling operation.Pure indentation coring can be used when operation Mode soil sampling, if the compression of pure press mode is excessive to can also be used rotary drilling pattern.After sampling, drilling tool assembly moves up Certain distance carries out card heart operation, makes soil sample during the card heart using the multiple tracks barb type dovetail groove mechanism of the advanced ends Zhu Zui Expansion self-locking effect is generated, avoids the soil body sample in drilling process from being dropped and lost while reducing soil sample disturbance.

Claims (4)

1. a kind of engineering exploration cord coring drill suitable for seabed drilling machine, including outer pipe assembly and inner tube assembly, described Outer pipe assembly includes sequentially connected bullet card shelves head, bullet card room, outer tube, reamer and drill bit;The inner tube assembly includes fishing Spearhead, plays clamping stent, single action mechanism, inner pipe joint, return water ball valve, inner tube and rock core bushing pipe at bullet card detent mechanism;Drag for spearhead with Bullet card detent mechanism connects, and bullet card detent mechanism is placed in bullet card interior, and bullet card detent mechanism is connect with clamping stent is played;Play clamping stent Side wall is equipped with hanging ring, and hanging ring is placed on the seat ring on outer tube wall;It plays clamping stent to connect with single action mechanism, single action mechanism It is connect with inner pipe joint, the lower end of inner pipe joint and the upper end of inner tube connect, and rock core bushing pipe is arranged in inner tube;
It is characterized in that:The single action mechanism includes mandrel, casing end cap, upper power transmission cutting ferrule and lower power transmission cutting ferrule;Mandrel it is upper End is connect with clamping stent is played, and the lower end of mandrel passes through casing end cap, the lower end of mandrel to be equipped with locking nut;Casing end cap central bore For stepped hole, both ends diameter is more than mid diameter;Sleeve end, which covers, is set with power transmission cutting ferrule, upper power transmission in portion's endoporus inner spindle It is equipped with two-direction thrust bearing between cutting ferrule and casing end cap endoporus step surface, outside framework oil seal is equipped at casing end cap endoporus upper end; It is set with lower power transmission cutting ferrule in the endoporus inner spindle of casing end cap lower part, is set between lower power transmission cutting ferrule and casing end cap endoporus step surface There is thrust bearing, deep groove ball bearing is equipped between lower power transmission cutting ferrule and locking nut;The inner pipe joint both ends are respectively equipped with Endoporus, endoporus and the casing end cap of upper end are spirally connected, which, which is equipped with, is connected between the endoporus and inner pipe joint and outer tube The through-hole of lacuna;The endoporus of inner pipe joint lower end is connected to the endoporus of rock core bushing pipe, and return water ball valve, the endoporus are equipped in the endoporus Side wall is equipped with the through-hole for being connected to lacuna between the endoporus and outer tube and inner pipe joint.
2. the engineering exploration cord coring drill according to claim 1 suitable for seabed drilling machine, it is characterized in that:Described Upper power transmission cutting ferrule is T-type structure, and upper end is contacted with mandrel flange bottom, the upper circle interference fit of lower part and two-direction thrust bearing; Positioning sleeve is equipped between the mandrel and the lower circle of two-direction thrust bearing.
3. the engineering exploration cord coring drill according to claim 1 suitable for seabed drilling machine, it is characterized in that:Inner tube Lower end is connect with advanced Zhu's nozzle, and the lower part of the endoporus of advanced Zhu's nozzle is equipped with the centering cylinder for the centering of rock core bushing pipe and determines Position step, the lower end of rock core bushing pipe is placed on the limited step of advanced Zhu's nozzle;Advanced Zhu's nozzle endoporus below positioning step it is interior Side is equipped with annular concave barb dovetail groove.
4. the engineering exploration cord coring drill according to claim 1 suitable for seabed drilling machine, it is characterized in that:Described The upper and lower end parts of seat ring endoporus are equipped with step surface;Endoporus between two step surfaces is equipped with chamfering.
CN201810730366.2A 2018-07-05 2018-07-05 A kind of engineering exploration cord coring drill suitable for seabed drilling machine Pending CN108625807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810730366.2A CN108625807A (en) 2018-07-05 2018-07-05 A kind of engineering exploration cord coring drill suitable for seabed drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810730366.2A CN108625807A (en) 2018-07-05 2018-07-05 A kind of engineering exploration cord coring drill suitable for seabed drilling machine

Publications (1)

Publication Number Publication Date
CN108625807A true CN108625807A (en) 2018-10-09

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CN201810730366.2A Pending CN108625807A (en) 2018-07-05 2018-07-05 A kind of engineering exploration cord coring drill suitable for seabed drilling machine

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111706283A (en) * 2020-06-17 2020-09-25 中国地质科学院勘探技术研究所 Core tube one-way valve mechanism of rope coring drilling tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111706283A (en) * 2020-06-17 2020-09-25 中国地质科学院勘探技术研究所 Core tube one-way valve mechanism of rope coring drilling tool

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